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Trademark Acknowledgments
Manual Part Number
16197-90020
Edition
Edition 5 July 2017
COVERING THE MATERIAL IN THIS
DOCUMENT THAT CONFLICT WITH
THESE TERMS, THE WARRANTY
TERMS IN THE SEPARATE
AGREEMENT WILL CONTROL.
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furnished under a license and may be
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products may be downloaded from
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http://www.keysight.com/go/confor
mity. You can then search by product
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perform, display, or disclose
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THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,”
AND IS SUBJECT TO BEING
CHANGED, WITHOUT NOTICE, IN
FUTURE EDITIONS. FURTHER, TO
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DISCLAIMS ALL WARRANTIES,
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The Software is “commercial
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Safety Notices
A CAUTION notice denotes a hazard. It
calls attention to an operating
procedure, practice, or the like that,
if not correctly performed or adhered
to, could result in damage to the
product or loss of important data. Do
not proceed beyond a CAUTION
notice until the indicated conditions
are fully understood and met.
A WARNING notice denotes a hazard.
It calls attention to an operating
procedure, practice, or the like that,
if not correctly performed or adhered
to, could result in personal injury or
death. Do not proceed beyond a
WARNING notice until the indicated
conditions are fully understood and
met.
This chapter describes the necessary operations to perform before using the
delivered Bottom Electrode SMD Test Fixture16197A.
Inspection before Unpacking
Upon receiving the product package, inspect the packing box before
unpacking to make sure it is not damaged. If the packing box or packing
materials have been damaged, keep the box and materials until it has been
confirmed that all necessary components have been delivered and that
product operation is normal both mechanically and electrically.
Check the package contents against Tab le 1-1. If any component is missing, or
mechanically damaged or defective, please contact Keysight Technologies
local sales office. If the packing box has been damaged or the packing
materials have been severely deformed, please contact the freight company as
well as our sales office. Until the freight company carries out its inspection,
store the packing box and materials as they are, with all product components
left inside.
Before using this product for the first time after delivery, carry out
“Deterioration Check” on page 47, which is necessary to ensure accurate
measurement. For details, see “Acquiring Reference Values” on page 48of
the “Deterioration Check”section.
5
1-
Installation Guide
Inspection before Unpacking
Figure 1-1 Package Contents of 16197A
6 Keysight16197A Operation and Service Manual
Installation Guide
Inspection before Unpacking
Table 1-1 Package Contents of 16197A
NoNameKeysight part
number
1Bottom-electrode SMD test fixture 16197A-1
2
Device guide
1
16197-250052
3Blank device guide16197-250063
4
Electrode plate
2
16197-006031
5EIA/EIAJ -size, Shorting bar set
Shorting bar 1.0 x 0.5 x 0.5
Shorting bar 1.6 x 0.8 x 0.8
Shorting bar 2.0 x 1.2 x 0.8
Shorting bar 3.2 x 1.6 x 0.8
3
3
3
3
16191-290051
16191-290061
16191-290071
16191-290081
6Tweezers8710-20811
7Allen wrench8710-09091
8Magnifying glass16193-600021
Qty
9Cleaning rod5182-75861
10Carrying case16197-600601
11Operation and service manual (this manual)16197-900201
Option 001
12Shorting bar 0.6 x 0.3 x 0.316197-290014
13Device guide16197-250071
14Electrode plate16197-006041
1. One is Delivered attached to the test fixture
2. Delivered attached to the test fixture
3. Shorting bars are delivered together in one case.
Keysight16197A Operation and Service Manual 7
1-
Installation Guide
Assembly and Storage of 16197A
Assembly and Storage of 16197A
The 16197A is delivered in a carrying case, disassembled into a pressure unit
and an electrode unit. Assemble the fixture before use. Disassemble the fixture
when storing it in the carrying case.
Assembly of 16197A
Before using the 16197A, install the pressure unit onto the electrode unit as
shown in Figure 1-2.
Figure 1-2 Installing the Pressure Unit
Installing the Magnifying Glass
If the magnifying glass is used, install it on the edge of the electrode unit as
shown in Figure 1-3.
8 Keysight16197A Operation and Service Manual
Installation Guide
Storage
Figure 1-3 Installing the Magnifying Glass
Storage
Before storing the 16197A, remove the pressure unit from the electrode unit
(Figure 1-4) and loosen the pressure adjusting nut on the pressure unit (Figure
1-5). Also remove the magnifying glass, if installed.
Figure 1-4 Removing the Pressure Unit
Keysight16197A Operation and Service Manual 9
1-
Installation Guide
Storage
Figure 1-5 Pressure Adjusting Nut
10 Keysight16197A Operation and Service Manual
Installation Guide
Changing the Positions of the Guide Holder Fixing Screws
Changing the Positions of the Guide Holder Fixing Screws
If the guide holder fixing screws hamper operation, the positions of these
screws can be changed.
Figure 1-6 Positions of the Guide Holder Fixing Screws
Keysight16197A Operation and Service Manual 11
1-
Installation Guide
Method for Changing the Positions of the Guide Holder Fixing Screws
Method for Changing the Positions of the Guide Holder Fixing Screws
Before changing the positions of the fixing screws, remove the pressure unit.
Step 1. Remove the four screws that fix the guide holder flange(Figure 1-7).
Step 2.Rotate the guide holder by 90 degrees together with components
fixed on the flange, and again set the guide holder in place (Figure 1-7).
Figure 1-7 Changing the Positions of the Guide Holder Fixing Screws
12 Keysight16197A Operation and Service Manual
Installation Guide
Connecting the Test Fixture with a Measuring Instrument
Connecting the Test Fixture with a Measuring Instrument
Connecting the test fixture 16197A with a measuring instrument requires an
adapter suited to the instrument.
The test fixture 16197A is suitable for use with a high-frequency LCR meter or
an impedance analyzer. Table 1-2 shows possible adapter combinations.
Table 1-2 Adapter for a Measuring Instrument
Measuring
Adapter
Instrument
E4991ATest head (supplied with the E4991A)
E4991BTest head (supplied with the E4991B)
E4982ATest head (supplied with the E4982A), Test Fixture Stand (Opt.
710) and 3.5mm- 7mm Coaxial Adapter (opt.720)
4294A, E4990A-12042942A terminal adapter
E5061B-3L3/3L4/3L5
16201A
with Opt. 005
The test fixture 16197A can also be connected with any measuring instrument
with 4-terminal pair configuration if an appropriate adapter is used.
For the procedure for attaching an adapter, see the Operation Manual for the
adapter.
Calibration on the 7-mm connector surface may be necessary depending
on the type of measuring instrument. In such a case, perform calibration
on the 7-mm connector surface before connecting the test fixture with the
measuring instrument. For details, see the Operation Manual for the
measuring instrument.
Below is the general procedure for attaching an adapter to the test fixture. (For
details, see the Operation Manual for each adapter.
Step 1. Rotate the 7mm connector on the adapter counterclockwise as
Step 2. Gently place the test fixture onto the adapter, aligning the mounting
Keysight16197A Operation and Service Manual 13
viewed from above to completely retract the connecting sleeve.
holes with the mounting posts on the adapter, and the 7mm
connector with that on the adapter.
1-
Installation Guide
Connecting the Test Fixture with a Measuring Instrument
Step 3. Rotate the 7mm connector on the adapter counterclockwise as
viewed from above to connect it with the connector on the bottom
of the test fixture.
Turn the 7-mm connector on the adapter using a 3/4-inch torque wrench
with 12 lb-inch torque (Keysight part number: 8710-1766) to firmly
connect the test fixture.
Figure 1-8 Installing the Test Fixture
14 Keysight16197A Operation and Service Manual
Keysight 16197A Bottom Electrode SMD Test Fixture
Operation and Service Manual
2 Product Description
Product Description
The 16197A is a test fixture for use in measuring bottom-electrode chip
components. It enables highly accurate and repeatable measurement of
chip-type capacitors, inductors, and other similar components. The 16197A is
compatible with measuring frequencies to 3GHz, and can accommodate
bottom-electrode chip components of sizes 3225 1(12102), 3216(12062), 20121
2
(0805
other sizes is possible by preparing appropriate device guides. Measurement of
a bottom-electrode chip component of size 0603
the option.
), 16081(06032), and 10051(04022). Measurement of chip components of
1
(02012) is also possible using
Figure 2-1 Product Appearance
1. EIAJ size
2. EIA size
15
2-
Product Description
Product Description
Mechanism for Connecting a DUT (Device Under Test)
The 16197A uses a device guide and an electrode plate for measuring to
various sizes of bottom-electrode SMDs.
The electrode plate is placed onto the center electrode of the electrode unit,
producing four different electrode spaces between the center electrode and
electrode plate (Figure 2-2).
Figure 2-2 Structure of Electrode (1)
The device guide is placed on the electrode plate to enable each DUT to be
positioned in a fixed location (Figure 2-3). Each DUT is set in a frame of the size
suitable to the DUT for connecting to the electrode (Figure 2-4).
16 Keysight16197A Operation and Service Manual
Product Description
Product Description
Figure 2-3 Structure of Electrode (2)
Figure 2-4 Connecting a DUT
The DUT is to be fixed under pressure from the pressure rod. Since the movable
range of the pressure rod is limited, either one of the two lateral frames in the
device guide can be used as the measuring position (Figure 2-5). Therefore,
before connecting a DUT, it may be necessary to change the orientation of the
electrode plate and device guide set in place so that the appropriate electrode
and device guide frame arrive at the measuring position.
Keysight16197A Operation and Service Manual 17
2-
Product Description
Product Description
Figure 2-5 Measuring Position for Each Device Size
18 Keysight16197A Operation and Service Manual
Product Description
Product Description
Names & Functions of Parts
Figure 2-6 shows the part names for the 16197A.
Figure 2-6 Names of Parts
Table 2-1 Names & Functions of Parts
NoNameFunction
1LeverUsed to raise or lower the pressure rod
2LatchUsed to fix the lever to retain the pressure rod
3KnobUsed to fix the pressure unit
4Sliding blockUsed to laterally move the pressure unit
5Pressure rodUsed to fix the DUT by downward pressure
6Guide holderUsed to fix the electrode plate and device
7Pressure adjusting nutUsed to adjust the DUT-retaining pressure of
8Pressure unitApparatus to retain the DUT, etc.
in its raised position
during measurement
guide
the pressure rod
Keysight16197A Operation and Service Manual 19
2-
Product Description
Product Description
Table 2-1 Names & Functions of Parts
NoNameFunction
9Electrode unitThe electrode section to which the DUT, etc.
are connected
Names & Functions of Accessories
Figure 2-7 shows the names of standard accessories of the 16197A, and those
of accessories available in Option 001.
Figure 2-7 Accessories
Table 2-2 Names & Functions of Accessories
NoNameFunction
1
Device guide
2Blank device guideUsed to prepare a device guide frame suited
3
Electrode plate
4Shorting bar setShorting bars in EIA/EIAJ sizes, and a case for
20 Keysight16197A Operation and Service Manual
a
Used to position the DUT, etc. when
connecting it to the electrode
to a DUT of a size not fitting any frame in the
attached device guide
a
Used to create various electrode spaces
storing them. These bars are used during of
SHORT compensation.
Product Description
Product Description
Table 2-2 Names & Functions of Accessories
NoNameFunction
5TweezersUsed to handle shorting bars, the DUT, etc.
6Allen wrenchUsed to tighten/loosen hexagonal nuts
7Magnifying glassUsed to magnify the view of a connector,
electrode, etc.
8Cleaning rodUsed to clean the electrodes. Refer to
“Cleaning Method” on page 45 in Chapter 4.
Option 001
9Device guideDevice guide for 0603 devices
10Electrode plateElectrode plate for 0603 devices
11Shorting bar Shorting bars for 0603 devices, and a case for
storing them. These bars are used during
SHORT compensation.
a. Delivered attached to the electrode unit
Keysight16197A Operation and Service Manual 21
2-
Product Description
Product Description
22 Keysight16197A Operation and Service Manual
Keysight 16197A Bottom Electrode SMD Test Fixture
Operation and Service Manual
3Operation
This chapter describes the procedures for measurement preparation, fixture
compensation, connection of a DUT, and measurement with the 16197A.
Measurement Flow
To measure a DUT by taking measurements with the 16197A, follow the
procedure below.
Step 1. Setting the measuring cond itio ns
Set the measuring conditions for the measuring instrument to be used.
Step 2. Performing calibration
Calibrate the measuring instrument adapters, if necessary.
Step 3. “Setting the Electrical Length” on page 25
Set the electrical length for the measuring instrument, if necessary.
Step 4. “Changing the Orientation of the Device Guide and Electrode Plate” on
page 25
Select a device guide frame that fits the configuration of the DUT, and change
the orientation of the device guide and electrode plate set on the center
electrode, if necessary.
Step 5. “Performing Fixture Compensation” on page 35
Measure the SHORT compensation and OPEN compensation data.
Step 6. “Connecting and Measuring the DUT” on page 40
Connect the DUT to the fixture and perform the measurement.
The 16197A has the capability for -55°C to +85°C temperature
measurement in environmental testing. Use gloves to prevent burns when
handling heated parts.
23
3-
Operation
Measurement Flow
Figure 3-1 Measurement Flow
The calibration methods, electrical length setting, and fixture compensation all
differ with the measuring instrument being used. See the operation manual for
the measuring instrument to be used.
To ensure accurate measurement with the 16197A, it is necessary to
perform a deterioration check of the shorting bars. For details, see
“Deterioration Check” on page 47
24 Keysight16197A Operation and Service Manual
Operation
Setting the Electrical Length
Setting the Electrical Length
Set the electrical length for the measuring instrument, if necessary. For the
method of setting the electrical length, see the operation manual for the
measuring instrument. The electrical length for the 16197A is as follows:
ModelElectrical length (mm)
16197A14.00 mm
Changing the Orientation of the Device Guide and Electrode Plate
Select a device guide frame suited to the DUT size, and mount the appropriate
device guide and electrode plate in the proper orientation so that a suitable
frame is located at the measuring position.
Selecting the device guide frame
Select a device guide frame suited to the DUT size, with reference to Tab le 3-1.
Table 3-1 Device Guide Frames and Applicable Device Sizes and Specifications
Frame
Position
EIAJ sizeEIA sizeLength (L)Width (W)Height
1322512103.2 0.152.5 0.150.4
321612063.2 0.15 1.6 0.150.4
2201208052.0 0.151.25 0.150.4
3160806031.6 0.150.8 0.150.4
4100504021.0 0.150.5 0.150.4
5060302010.6 0.030.3 0.030.25
Device SizeApplicable chip size (mm)
(H)
Keysight16197A Operation and Service Manual 25
3-
Operation
Changing the Orientation of the Device Guide and Electrode Plate
An excessively large gap between the DUT and device guide frame will
result in contact failure between the DUT and electrode, or poor
measurement accuracy or repeatability. Be sure to select a device guide
frame that fits the DUT configuration.
If the DUT size does not fit any frame in the attached device guide, prepare a
suitable frame using the supplied blank device guide. For details, see “Working
with Device Guide”.
Figure 3-2 Electrode Spacing
26 Keysight16197A Operation and Service Manual
Operation
Changing the Orientation of the Device Guide and Electrode Plate
Figure 3-3 Dimension of the Device Guide Frame
Be sure to superpose the device guide onto the electrode plate in the
proper orientation and with the correct side facing up. Otherwise,
adequate electrode spacing cannot be created. As shown in Figure 3-3
when viewed from above, on the correct face of the device guide there are
two marks at positions 90 degrees apart clockwise from a single position.
Superpose the device guide onto the electrode plate so that all these
marks are aligned with the corresponding marks on the electrode plate.
For a 0603 device, correct electrode spacing can be created regardless of
whether the mark on the device guide is aligned with the corresponding
mark on the electrode plate
Keysight16197A Operation and Service Manual 27
3-
Operation
Changing the Orientation of the Device Guide and Electrode Plate
Changing the Orientation of or Replacing the Device Guide and Electrode Plate
Change the orientation of the device guide and electrode plate so that the
selected device guide frame is located at the measuring position. For a 0603
device, replace the attached device guide and electrode plate with ones
supplied in Option 001.
Step 1. Loosen the knobs on the sliding block, and remove the pressure unit from the
electrode unit, referring to Figure 1-4 on page 9
Step 2. Unscrew the screws that fix the guide holder. Then remove the guide holder,
device guide, and electrode plate (Figure 3-4)
Figure 3-4 Removing the Device Guide and Electrode Plate
If it is difficult to take out the electrode plate, turn the electrode unit
upside down to remove the plate. Do not use force to take out the
electrode plate, otherwise it may be deformed.
Step 3. Mount the device guide and electrode plate so that the selected device guide
frame is located at the measuring position. Ensure that the marks on the
device guide are aligned with those on the electrode plate (Figure 3-5). For a
0603 DUT, replace the attached device guide and electrode plate with ones
supplied in Option 001 (Figure 3-6).
28 Keysight16197A Operation and Service Manual
Operation
Changing the Orientation of the Device Guide and Electrode Plate
Figure 3-5 Mounting the Device Guide and Electrode Plate
Figure 3-6 Mounting the Device Guide and Electrode Plate 0603
Do not touch or damage the center electrode or electrode plate, otherwise
measurement accuracy and repeatability may be impaired.
Be sure to mount the device guide and electrode plate with the correct
sides facing up.
Step 4. Install the guide holder, and tighten the screws to secure it.
Keysight16197A Operation and Service Manual 29
3-
Operation
Changing the Orientation of the Device Guide and Electrode Plate
Step 5. Mount the pressure unit onto the electrode unit according to Figure 1-2 on
page 8
Step 6. Connect the test fixture with the measuring instrument.
Connect the test fixture with the measuring instrument according to
“Connecting the Test Fixture with a Measuring Instrument” on page 13 in
Chapter 1.
30 Keysight16197A Operation and Service Manual
Operation
Working with Device Guide
Working with Device Guide
To measure a DUT whose size does not fit any frame in the attached device
guide, it is necessary to prepare a suitable device guide frame. Prepare a frame
with reference to the dimensions of the blank device guide shown in Figure 3-7
and the electrode positioning shown in Figure 3-8.
Reference Data for Preparing a Device Guide Frame
Figure 3-7 Dimensional Drawing of a Blank Device Guide
Figure 3-8 Electrode Positioning
A guide holder is placed onto the device guide. Figure 3-9-A shows the inside
diameter of the guide holder. Figure Figure 3-9-B shows the movable range of
the pressure rod.
Keysight16197A Operation and Service Manual 31
3-
Operation
Working with Device Guide
Figure 3-9 Inside Diameter of Guide Holder & Movable Range of Pressure Rod
Determine the position of the frame to be prepared, keeping in mind the
following requirements:
•The electrode of the DUT must maintain equal contact with both the center electrode
and electrode plate.
•The electrode of the DUT must have a large contact area, and the electrode space
between the center electrode and electrode plate must be as large as possible.
•The pressure rod must be able to press the center of the DUT to stabilize the DUT
during measurement.
Example of Preparing the Device Guide
Preparing the Device Guide for a 2520 SMD
The figure below shown an example of preparation for a device guide for a
2520 SMD. For a 2520 SMD, the measuring position for a 2012 device is used
(electrode space: 1.5mm).
32 Keysight16197A Operation and Service Manual
Operation
Working with Device Guide
Figure 3-10 Example of Preparation of Device Guide for 2520 SMD
Prepare the frame at the position shown inFigure 3-10 This position is within
the movable range of the pressure rod (4 mm on each lateral side from the
center). In a frame at this position, the electrodes on both lateral sides of the
DUT can be placed in equal contact by 0.4-mm width with the center electrode
and the electrode plate.
Example of Preparing the Device Guide for an SOT 23 Device (Case
Style 287)
The figure below shows an example of preparing a device guide for an SOT 23
device. For an SOT 23 device, the measuring position for a 1608 device is used
(electrode space: 1.0 mm).
Figure 3-11 Example of Preparing the Device Guide for an SOT 23 Device (Case Style 287)
Keysight16197A Operation and Service Manual 33
3-
Operation
Working with Device Guide
Prepare a frame at the position shown in Figure 3-11. In a frame at this
position, the electrodes on both lateral sides of the DUT can be placed in equal
contact by 0.6-mm width with the center electrode and the electrode plate.
Example of Preparing a Simple Device Guide
In order to prepare the device guide more easily, there is a method that
involves precisely cutting only the 2 sides that position the device over the
electrodes. Do not cut the corner hole which mounts the device guide.
The measurement accuracy when using this method is not guaranteed.
Preparing the Simple Device Guide for a 2520 SMD
The position which places the 2520 SMD is same as Figure 3-10. Cut the 2
sides precisely which fixes the device position as shown in Figure 3-12.
Figure 3-12 Example of Preparing the Simple Device Guide for a 2520 SMD
34 Keysight16197A Operation and Service Manual
Operation
Performing Fixture Compensation
Performing Fixture Compensation
To ensure accurate measurement, it is necessary to perform fixture
compensation before measurement. For the 16197A, measure the SHORT
compensation and OPEN compensation data. If the DUT size or the measuring
position is changed, perform fixture compensation again.
If a temperature change greater than ± 5°C occurs after fixture
compensation, perform the fixture compensation from the beginning.
Measuring the SHORT Compensation Data
With the fixture SHORT state using a supplied shorting bar, measure the
SHORT compensation data.
Step 1. Rotate the pressure adjusting nut to adjust the pressure on the pressure rod
to the same value as used for measurement.
Step 2. Loosen the knobs on the sliding block, and adjust the position of the pressure
unit so that the end of the pressure rod is located at the center of the device
guide frame where the shorting bar will be placed (Figure 3-13).
Figure 3-13 Adjusting the Pressure Unit Position
Step 3. Press the lever to the limit (Figure 3-14,1). With the lever pressed, push in the
latch (Figure 3-14,2), and then release the lever (Figure 3-14,3). The pressure
rod is then fixed at its raised position.
Keysight16197A Operation and Service Manual 35
3-
Operation
Performing Fixture Compensation
Figure 3-14 Raising the Pressure Rod
Step 4. Using tweezers, place an appropriate shorting bar on the electrode along the
device guide frame.
Each shorting bar is made exclusively for a particular device size. Do not
use a shorting bar of the wrong size.
Figure 3-15 Connecting the Shorting Bar
Handle each shorting bar with tweezers, taking care not to soil it. A soiled
shorting bar may impair measurement accuracy and repeatability.
Take care so that the correct face of the shorting bar is placed in contact
with the electrode.
36 Keysight16197A Operation and Service Manual
Operation
Performing Fixture Compensation
Shorting bars can wear out. Therefore, each time before using a shorting
bar, measure and compare its resistance with that of a new shorting bar.
For details, see “Operation Check” on page 69
Step 5. Press the lever; the latch is disengaged (Figure 3-16,1). Slowly release the
lever to lower the pressure rod (Figure 3-16,2).
Figure 3-16 Setting the Fixture for SHORT State Using a Shorting Bar
Adjust the position of the pressure unit in ad vance so that a shorting bar
can be pressed at its center by the end of the pressure rod.
Step 6. Measure the SHORT compensation data according to the operation manual
for the measuring instrument to be used.
When measurement is not being done, lower the pressure rod so it rests on
an unoccupied area of the device guide.
Keysight16197A Operation and Service Manual 37
3-
Operation
Performing Fixture Compensation
Figure 3-17 Standby Position of the Pressure Road
Confirm that the end of the pressure rod is not deformed. Replace the rod
if deformed. For the replacement part, see “Replaceable Parts” on
page 61.
Measuring OPEN Compensation Data
With the fixture in an OPEN state, measure the OPEN compensation data.
Step 7. Press the lever to raise the pressure rod, and remove the shorting bar used to
measure the SHORT compensation data (Figure 3-18,1).
Step 8. Press the lever to raise the pressure rod (Figure 3-18,2), and push the latch to
secure the pressure rod in its raised position (Figure 3-18,3).
Figure 3-18 Setting the Fixture for OPEN State
38 Keysight16197A Operation and Service Manual
Operation
Performing Fixture Compensation
Step 9. Measure OPEN compensation data according to the operation manual for the
measuring instrument to be used.
Keysight16197A Operation and Service Manual 39
3-
Operation
Connecting and Measuring the DUT
Connecting and Measuring the DUT
Connect the DUT with the electrode, and carry out the measurement.
Step 1. Place the DUT on the electrode in an appropriate device guide frame (Figure
3-19,1).
Step 2. Press the lever to disengage the latch (Figure 3-19,2), and slowly release the
lever to lower the pressure rod (Figure 3-19,3).
Figure 3-19 Connecting the DUT
Step 3. Perform the measurement according to the operation manual for the
measuring instrument to be used.
The DUT may become hot during measurement. If the temperature of the
DUT rises, the end of the pressure rod may be deformed. If this occurs,
decrease the pressure on the pressure rod to prevent deformation of the
end of the rod.
To ensure accurate and repeatable measurements, place the DUT
alongside a fixed edge of each device guide frame. Testing a 3216 DUT, for
instance, uses the 3216/3225 frame. Since this frame is dimensioned to fit
with a 3225 device, some clearance remains in the frame if it is used for a
3216 DUT. Therefore, it is necessary to place the DUT alongside a fixed
edge of the frame.
40 Keysight16197A Operation and Service Manual
Operation
Connecting and Measuring the DUT
Figure 3-20 DUT Position in the Device Guide Frame
Keysight16197A Operation and Service Manual 41
3-
Operation
Connecting and Measuring the DUT
42 Keysight16197A Operation and Service Manual
Keysight 16197A Bottom Electrode SMD Test Fixture
Operation and Service Manual
4User Maintenance
This chapter describes the operations to perform before starting measurement,
and the procedures necessary to ensure accurate measurements.
Description
Necessity of User Maintenance
Through repeated use, the fixture's measuring performance will gradually
deteriorate over time due to smearing on the contact faces from solder
buildup, and to mechanical wear and deformation of the contact faces
themselves. To continually achieve optimal measurement results, it is
important to keep the contact faces in good condition and take appropriate
action before such wear or deformation occurs. Therefore, the fixture should be
properly cared for by implementing each of the maintenance items shown in
Table 4-1.
Table 4-1 Maintenance Items
NameFrequency of
CleaningSeveral times a dayCleaning the
Electrode
deterioration
check
implementation
Before using the
fixture for the first time
after delivery/ After
replacement of parts
Once a day/Before
fixture compensation
ContentsTarget parts
Entire fixture
fixture
Acquisition of
reference
values
Determining the
deviation from
reference values
a
Center electrode,
Electrode plate
Center electrode,
Electrode plate
a
43
4-
User Maintenance
Description
Table 4-1 Maintenance Items
NameFrequency of
ContentsTarget parts
implementation
Replacement of
parts
When deterioration
check result is
unacceptable
Changing the
orientation of the
contact
assembly, or
Center electrode,
Electrode plate
Shorting bar
replacement of
parts
Assembly checkAfter replacement of
parts
Evaluation of
absolute Ls and
Center electrode,
Electrode plate
Rs values
Shorting bar
a. For details, see “Acquiring Reference Values” on page 48.
Maintenance of the fixture is important especially to ensure fine or highly
accurate measurement, since deteriorated measurement performance of the
fixture has a significant effect on the measurement results. Depending on the
required measurement performance, it may be necessary to increase the
frequency of maintenance and/or adopt more strict criteria for each
maintenance item.
The electrodes and shorting bars are consumable. Of all the fixture
components, these parts are most likely to affect the measurement results. The
electrodes tend to deteriorate gradually since they can easily be smeared with
solder transferred from the DUT during measurements. Because shorting bars
are used to determine the zero reference for fixture compensation, smeared or
deformed shorting bars can directly influence measurement results. This
chapter describes the general user maintenance requirements, focusing
primarily on the electrodes and shorting bars.
44 Keysight16197A Operation and Service Manual
User Maintenance
Cleaning
Cleaning
Smeared electrodes result in poor measurement accuracy and repeatability.
Periodically clean the electrodes to ensure accurate measurements.
Areas Requiring Cleaning
The following areas require cleaning.
— The area of the center electrode that will be in contact with the electrode of
the DUT
— The area of the electrode plate that will be in contact with the electrode of
the DUT
Figure 4-1 Areas Requiring Cleaning
Cleaning Method
Use a cleaning rod (Keysight part number: 5182-7586) to clean the electrodes.
Remove smears on the above-mentioned contact area by wiping with the white
rubber portion of the cleaning rod. Take care not to damage the electrode
parts.
Keysight16197A Operation and Service Manual 45
4-
User Maintenance
Cleaning
Figure 4-2 Cleaning Rod
Do not file off the smears; filing part surfaces may cause poor
measurement accuracy or repeatability.
If smears cannot be removed, replace the part. For the replacement
method, see “Changing the Orientation of or Replacing the Contact
Assembly” on page 67
46 Keysight16197A Operation and Service Manual
User Maintenance
RXQ0.6==
X2fL6==
Deterioration Check
Deterioration Check
A deterioration check must be performed to determine the state of
deterioration of the fixture and to confirm whether the fixture is providing the
required measurement accuracy. The deterioration check comprises three
operations: “Setting user limit values,” “Acquiring Reference Values”“Electrode
Deterioration Check”. In the deterioration check, the impedance values (Rs, Ls)
of the fixture itself are measured at a discretionary frequency. It is
recommended to use the frequency at which the fixture is normally used.
Perform “Setting user limit values” in the following cases:
— When using the fixture for the first time after delivery
— When changing the required measurement accuracy
Perform “Acquiring Reference Values” in the following cases:
— When using the fixture for the first time after delivery
— After replacing parts
Perform “Electrode Deterioration Check” in the following cases:
— Once a day, and before conducting fixture compensation
Example Settings of User Limit Values
User limit values for the deterioration check should be set appropriately
according to the type of DUT, required measurement accuracy, and so on.
Example settings of user limit values are shown below.
To evaluate an inductor (L:10nH, Q:10) at a frequency (f) of 100 MHz
with a measurement accuracy of around 20%:
L:10nH
Q:10
Frequency:100MHz
Required measurement accuracy:20% for both L and Q
The reactance X and resistance R of the inductor under the above-mentioned
conditions can be obtained as follows:
Keysight16197A Operation and Service Manual 47
4-
QXR2fLR==
User Maintenance
Deterioration Check
Therefore, . Accordingly, if R fluctuates by 20% (120 mΩ), Q
will change by about 20%; and if L fluctuates by 20% (2 nH), both L and Q will
change by about 20%. In other words, to measure L and Q at an accuracy of
20% or less error, errors in L and R must be 2 nH and 120 m
Ω at the most,
respectively. Considering that both L and R may fluctuate, and allowing for
possible causes of error other than a deteriorated fixture, the errors must be set
smaller than the above-mentioned values. For the present example, with the
error set at 25% for both L and R, the user limit values for L and R are set at
500 pH and 30 mΩ, respectively.
Note that the above settings are just an example. Actually, user limit
values should be varied depending on the measuring conditions and type
of DUT.
In actual measurement, some of the effect of electrode deterioration is
canceled by SHORT compensation. However, it is recommended to set
user limit values on the assumption that deviations from the reference
values affect the entire measurement results, as shown in the above
example.
Necessary
equipment
Record the user limit values in the “Check Sheet” on page 51. For the method
of recording, see “Example Entry in Check Sheet” on page 51.
Acquiring Reference Values
To obtain reference values, measure the impedance (Rs, Ls) of the fixture
before deterioration. It is recommended to take measurements at a frequency
at which the fixture is normally used. It is necessary to obtain reference values
using electrodes and shorting bars for all sizes of DUTs that will be subject to
actual measurement.
“Acquiring reference values” is necessary in the following cases:
— When using the fixture for the first time after delivery
— After replacement of parts
— Shorting bars (supplied as accessories)
— Impedance measuring instrument (calibrated at the 7mm connector end)
Set the fixture compensation for the measuring instrument to OFF.
Check that each shorting bar is not deformed or stained.
48 Keysight16197A Operation and Service Manual
User Maintenance
Deterioration Check
Procedure for Acquiring Reference Values for the Electrode Deterioration
Check
Step 1. Clean each electrode and shorting bar using the method described in
“Cleaning” on page 45.
Step 2. At the actual DUT measurement position, connect an appropriate shorting bar
with the electrode to set the fixture for the SHORT state (See Figure 3-16 on
page 37).
Step 3. Measure Rs and Ls according to the Operation and Service Manual for the
measuring instrument.
Step 4. Record the Rs and Ls readings as reference values in the “Check Sheet” on
page 51
Step 5. From the reference values and the user limit values determined in the
preceding section, calculate the upper and lower limit values, and record
them in the Check Sheet.
Electrode Deterioration Check
Measure the impedance of the fixture in the SHORT state to check for electrode
deterioration. Use a shorting bar suited to the size of the actual DUT.
Necessary
equipment
The electrode deterioration check is necessary in the following cases:
— Once a day, and before conducting fixture compensation
— Shorting bars (supplied as accessories)
— Impedance measuring instrument (calibrated at the 7-mm connector end)
Set the fixture compensation of the measuring instrument to OFF. Set all
other functions to the same states according to “Acquiring Reference
Values”
Electrode Deterioration Check Procedure
Step 1. Clean each electrode and shoring bar using the method described in
“Cleaning” on page 45.
Step 2. Perform the measurement, with the measuring instrument set for the same
conditions as mentioned in “Procedure for Acquiring Reference Values for the
Electrode Deterioration Check” on page 49.
Step 3. Record the Rs and Ls readings, as well as their acceptability, in the “Check
Sheet” on page 51.
Keysight16197A Operation and Service Manual 49
4-
User Maintenance
Deterioration Check
Step 4. If the results are unacceptable, replace the center electrode or the electrode
plate.
By changing the orientation of the contact assembly, it is possible to take
measurements using an unused clean area of the center electrode. For
details, see “Changing the Orientation of or Replacing the Contact
Assembly” on page 67
An electrode deterioration check using a deformed or stained shorting bar
may produce unacceptable check results. Replace the shorting bar if it is
deformed or if it cannot be cleaned.
50 Keysight16197A Operation and Service Manual
User Maintenance
Check Sheet
Check Sheet
Example Entry in Check Sheet
The following tables shown an example entry of electrode deterioration check
results in the Check Sheet.
Example Entry of Electrode Deterioration Check Results
DUT Size2012
Table 4-2 Example Entry of Reference Values and User Limit Values
a
Frequency
Measurement
parameter
100 MHzRs40 m30 m10 m70 m
Ls2.34 nH0.5 nH1.84 nH2.84 nH
Reference
value [a]
b
User limit
value [b]
Lower limit
c
[a-b]
Upper limit
[a+b]
800 MHzRs220 m40 m180 m260 m
Ls2.32 nH0.4 nH1.92 nH2.72 nH
a. User's discretionary value
b. Enter the values obtained in section
page 48
c. For entry, see “Example Settings of User Limit Values” on page 47
Table 4-3 Example Entry of Checking History
Date/
Time
2000/
10/11
9:30
2000/
10/11
9:35
2000/
10/12
9:30
FrequencyMeasurement
parameter
100 MHzRs50 mWO
Ls2.5 nHO
800 MHzRs250 mWO
Ls2.6 nHO
100 MHzRs55 mWO
Ls2.6 nHO
“Acquiring Reference Values” on
Measurement
value
AcceptabilitySet position
of pressure
adjusting
nut
2000/
10/12
9:35
Replace parts if check results are not acceptable.
a.
Keysight16197A Operation and Service Manual 51
800 MHzRs285 mW
Ls2.7 nHO
a
X
4-
User Maintenance
Check Sheet
Electrode Deterioration Check
DUT size______________________
Table 4-4 Reference Values and User Limit Values
FrequencyMeasurement
parameter
Rsmmmm
LspHpHpHpH
Rsmmmm
LspHpHpHpH
Table 4-5 Checking History
Date/TimeFrequencyMeasurement
Reference
value [a]
User limit
value [b]
Measurement
parameter
value
Rsm
LspH
Rsm
LspH
Rsm
Lower limit
[a-b]
Upper limit
[a+b]
AcceptabilitySet position
of pressure
adjusting nut
LspH
Rsm
LspH
Rsm
LspH
Rsm
LspH
Rsm
LspH
Rsm
LspH
Rsm
LspH
52 Keysight16197A Operation and Service Manual
User Maintenance
Assembly Check
Assembly Check
Each time after replacing a part, conduct an assembly check to confirm that
the fixture has been assembled properly. The procedure for performing an
assembly check is identical with that for an operation check. For the
procedure, see “Operation Check” on page 69
Keysight16197A Operation and Service Manual 53
4-
User Maintenance
Assembly Check
54 Keysight16197A Operation and Service Manual
Keysight 16197A Bottom Electrode SMD Test Fixture
Operation and Service Manual
5Specifications and Supplemental Performance
Characteristics
This chapter provides specifications and supplemental performance
characteristics of the 16197A test fixture.
Definitions
Specification
(spec):
Supplemental Information is intended to provide information useful in applying
the instrument, but that is not covered by the product warranty. The
information is denoted as typical, or nominal.
Typical (typ.):Expected performance of an average unit which does not include
Nominal (nom.):A general, descriptive term that does not imply a level of
Warranted performance. Specifications include
guardbands to account for the expected statistical
performance distribution, measurement uncertainties, and
changes in performance due to environmental conditions.
guardbands.
performance.
55
5-
Specifications and Supplemental Performance Characteristics
Specifications
Specifications
Applicable
Refer to the Table 1-2 and Table 1-3 on page 13
Instruments
Applicable DUT TypeSurface Mount Device with bottom electrodes.
Specifications and Supplemental Performance Characteristics
Supplemental Performance Characteristics
Supplemental Performance Characteristics
This section provides useful data on the 16197A. These supplemental
performance characteristics should not be considered specifications.
Additional Error
Additional errors are calculated as follows.
|Z| Measurement
Additional error for Impedance Ze [%] is calculated by substituting the values
in the table below into the following equation.
Ze [%] = ± {A + (Zs/Zx + Yo ×Zx) × 100}
where
A [%] Test Fixture’s Proportional Error [%]
Yo [S] Test Fixture’s Open Repeatability [S]
] Test Fixture’s Short Repeatability []
Zs [
] Measured Impedance Value of DUT []
Zx [
-6
-3
[S]
[W]
Zs
Yo
A
(30 + 150 × f ) × 10
(2 + 30 × f ) × 10
2
1.2 × f
[%]
where f is frequency (GHz)
D Measurement
Additional error for Dissipation Factor De is calculated by using the additional error for
Impedance Ze [%] as follows.
If Dx 0.1:
De = Ze / 100
If 0.1 < Dx 0.5:
De = (Ze / 100) × (1 + Dx)
where Dx is the measured value of D. It is necessary for Ze to be below 10%.
D is not expressed as a percentage but as an absolute value.
Keysight16197A Operation and Service Manual 57
5-
1Dx
2
+
Specifications and Supplemental Performance Characteristics
Rs (ESR) Measurement
Rs (ESR) Measurement
Additional error Rse[%] of the Rs measurement is calculated by using the
additional error for Impedance Ze [%] as follows.
If Dx
0.1:
Rse [%] = Ze / Dx
If 0.1 < Dx
0.5:
Rse [%] = (Ze / Dx) ×
Dx is the measured value of D and is calculated as follows.
Dx = 2 ×
π × f × Csx × Rsx,
where
f: measurement signal frequency
Csx: measured value of Cs
Rsx: measured value of Rs
Figure 5-1 Additional Error for Impedance
58 Keysight16197A Operation and Service Manual
Specifications and Supplemental Performance Characteristics
Residual Inductance of the Shorting Bar
Residual Inductance of the Shorting Bar
The usual method to compensate the test fixture's residual inductance is to let
SHORT = 0H. In this method, the measurement result is the relative value of
the measured impedance to the shorting bar's impedance. The short bar's
residual inductance as a result of its size and shape is not estimated.
On the other hand, there is a definition method to let SHORT = x H. In this
method, the measurement result is the absolute value of the device's
impedance. The short bar's residual inductance as a result of its size and shape
is estimated under specific conditions and is used as a reference value. This
method, is useful for devices with values which are close to the short
conditions of the measurement system.
The reference inductance values presented Table 5-1 were simulated as the
relative difference to a disk-type 0 W termination on either the 7mm or the
3.5mm connector. The measurement of these short bars under other
conditions than shown below cannot reproduce the reference inductance
values.
Table 5-1 Residual Inductance (Typical)
Shorting Bar Set1 [mm]d [mm]h [mm]Offset [mm]ConnectorInductance
0.6 x 0.3 x 0.30.60.30.30.05851 mm0.1nH
1.0 x 0.5 x 0.51.00.50.50.753.5 mm0.5 nH
1.6 x 0.8 x 0.81.60.80.80.453.5 mm0.4 nH
2.0 x 1.2 x 0.82.01.20.81.57 mm0.9 nH
3.2 x 1.6 x 0.83.21.60.80.97 mm0.8 nH
Figure 5-2 Simulation Setup
(Typical)
Keysight16197A Operation and Service Manual 59
5-
Specifications and Supplemental Performance Characteristics
Residual Inductance of the Shorting Bar
60 Keysight16197A Operation and Service Manual
Keysight 16197A Bottom Electrode SMD Test Fixture
Operation and Service Manual
6Service
This chapter describes the replaceable parts of the fixture, and the method for
replacing parts.
Replaceable Parts
The support parts for RoHS and non-RoHS compliance 16197A Bottom
Electrode SMD Test Fixture with the exploded views and tables shown below.
Due to limited availability of RoHS compliance station and technical difficulties
in RoHS soldering, only parts and support level that do not require RoHS
soldering are supported. Replace all defective parts with RoHS compliance
part number. Do not disassemble each unit into smaller components than
shown in these exploded views. If a defective part to be replaced is part of a
component that cannot be disassembled, place an order for the entire
component. Defective parts or components may be sent to Keysight
Technologies local sales/service office for repair.
Perform "Operation Check" in 16197A Operation and Service Manual each
time a part is replaced.
Serial Number for Non-RoHS 16197A:
JP1KH00001 – JP1KH99999/MY43100001 – MY43201091/
SG43100001 – SG43201091
Serial Number for RoHS 16197A:
MY43201092 and above/SG43201092 and above
61
6-
Service
Replaceable Parts
Pressure Unit
Figure 6-1 Exploded View of Pressure Unit Assembly
Table 6-1 Replaceable Parts (Pressure Unit)
Ref/DPart NumberDescriptionQtyRoHS
13050-1138Washer13050-1138Washer1
216197-25002Pressure rod116197-25002Pressure rod1
31480-1093R-pin11480-1240R-pin1
416197-05001Lever116197-05001Lever1
5N/APressure unit1N/APressure unit1
62 Keysight16197A Operation and Service Manual
DescriptionQty
Compliant
Replacement
Part
Service
Replaceable Parts
Table 6-1 Replaceable Parts (Pressure Unit)
Ref/DPart NumberDescriptionQtyRoHS
DescriptionQty
Compliant
Replacement
Part
61460-2662Spring11460-2662Spring1
716197-23003Shaft116197-23003Shaft1
816197-23004Shaft116197-23004Shaft1
91460-2663Spring11460-2663Spring1
1016197-24004Pressure
adjusting nut
116197-24004Pressure
adjusting nut
1
1116197-24005Screw116197-24005Screw1
120515-1185Screw10515-1185Screw1
1316197-24003Knob216197-24003Knob2
14N/ASliding block1N/ASliding block1
150515-1550Screw M320515-0372Screw M32
Keysight16197A Operation and Service Manual 63
6-
Service
Replaceable Parts
Electrode Unit
Figure 6-2 Exploded View of Electrode Unit Assembly
Service
Changing the Orientation of or Replacing the Contact Assembly
Changing the Orientation of or Replacing the Contact Assembly
If the center electrode of the contact assembly is smeared, an unused clean
area of the center electrode can be used simply by changing the orientation of
the contact assembly. This section describes the method for changing the
orientation of or replacing the contact assembly.
To change the contact assembly orientation or replace the contact assembly, it
is necessary to use a 1.5-mm Allen wrench (Keysight part number: 8710-0909)
and a Phillips screwdriver.
Procedure for Changing the Orientation of or Replacing the Contact
Assembly
1. Take off the guide holder, and remove the device guide and electrode
plate. (See to Figure 3-4 on page 28).
2. Remove the four screws from the upper side of the fixture, and then
remove the contact assembly and flange.
Figure 6-3 Removing the Contact Assembly
Keysight16197A Operation and Service Manual 67
6-
Service
Changing the Orientation of or Replacing the Contact Assembly
3. Rotate the contact assembly and set it in place so that a clean area of the
center electrode is at the measuring position.
4. Install the flange, and tighten the screws.
5. Install the device guide and electrode plate. Then mount the guide holder
and secure it with the screws.
68 Keysight16197A Operation and Service Manual
Service
Operation Check
Operation Check
This section describes the operation check method. Be sure to perform the
operation check after each time a part is replaced.
Open Impedance Check
Conduct an Open impedance check with the fixture set for the OPEN state.
Necessary
equipment
— Shorting bars (supplied as accessories)
— Impedance measuring instrument (calibrated at the 7-mm connector end)
If a measuring instrument other than the 4291B is to be used, make the equivalent
settings according to the Operation and Service Manual for the instrument to be
used.
Step 1. Prepare a measuring instrument calibrated at the 7-mm connector end.
Connect the test fixture with this instrument.
Step 2. Set the fixture for the OPEN state, at the DUT measuring position (see Figure
3-18 on page 38).
Step 3. Make the settings for the 4291B as follows.
Table 6-4 Settings for the Measuring Instrument (Keysight 4291B)
Measuring ConditionSetting
Measurement parameterCp
Start frequency100MHz
Stop frequency1GHz
OSC Level0.5V
Number of points2
Point averaging factor16
Points averagingON
Step 4. Under these conditions, measure Cp at 100 MHz and 1 GHz separately.
Step 5. Confirm that the Cp value is within the typical range shown in Table 6-5.
Table 6-5 OPEN Impedance Check: Typical
ParameterFrequencyTypical (Absolute value)
Cp100MHz700 fF ± 400 fF
Cp1GHz700 fF ± 400 fF
Keysight16197A Operation and Service Manual 69
6-
Service
Operation Check
Short Impedance Check
Upon completion of the open impedance check, carry out a short impedance
check with the fixture set for the SHORT state.
Step 1. At the DUT measuring position, connect an appropriate shorting bar with the
electrode to secure the fixture for the SHORT state. (See Figure 3-16 on
page 37).
Step 2. Make the settings for the 4291B as follow.
Table 6-6 Settings for the Measuring Instrument (Keysight 4291B)
Measuring ConditionSetting
Measurement parameterLs
Start frequency100MHz
Stop frequency1GHz
OSC Level0.5V
Number of points2
Point averaging factor16
Points averagingON
Step 3. Under this condition, measure Ls at 100MHz and 1GHz, separately.
Step 4. Confirm that the Ls value is within the typical range shown in Table 6-7
Table 6-7 SHORT Impedance Check: Typical
ParameterFrequencyTypical (Absolute value)
Ls100MHz
Ls1GHz
a. The values given above are common to shorting bars of all sizes.
Short-impedance Measurement Repeatability Check
2.3nH ± 1nH
2.3nH ± 1nH
a
a
Repeat short impedance measurement to check for the repeatability of
measurement.
Step 1. Upon completion of the short impedance check, disconnect the shorting bar
and connect it again with the electrode.
Step 2. Under the same measuring conditions as given above, measure Ls again at
100MHz and 1GHz, separately.
Step 3. Confirm that the Ls value is within the typical range shown in Table 6-7.
70 Keysight16197A Operation and Service Manual
Service
Operation Check
Step 4. Obtain the difference between the first and second Ls measurements.
Step 5. Confirm that the variation in measurements is within the typical range shown
in Table 6-8.
Table 6-8 SHORT Impedance Check: Typical
ParameterFrequencyTypical (Difference)
Ls100MHz± 45pH
Ls1GHz± 45pH
Keysight16197A Operation and Service Manual 71
6-
Service
Operation Check
72 Keysight16197A Operation and Service Manual
This information is subject to change without notice.