Phytec phyCORE-i.MX 6UL, phyCORE-i.MX 6ULL Soldering Instruction

Soldering instruction phyCORE-i.MX 6UL/ULL

 PHYTEC Messtechnik GmbH 2017 1/7

Application Note No.
Version: .A8
Author: M. Franck
Date: 11.10.2017

History:

Version

Changes

Date

Author

.A0

First edition

30.11.2016

M. Franck

.A1

Adding belts and trays

23.03.2017

M. Franck

.A2

Adding Pin1 marker, pad dimensions

08.06.2017

M. Franck

.A3

Changed Pin1 marker, paste printing

30.06.2017

M. Franck

.A4

Paste reduction removed

24.08.2017

M. Franck

.A5

Link to dimensioned drawings added

15.09.2017

M. Franck

.A6

Introduction changed

25.09.2017

M. Franck

.A7

J-STD-020E, reel diameter added,
placement changed

11.10.2017

M. Franck
.A8

Tape dimensions added

13.10.2017

M. Franck

Soldering instruction

phyCORE-i.MX 6UL/ULL

Content

1 Introduction ...................................................................................................................................... 2

2 Delivery Format ................................................................................................................................ 3

3 Production settings .......................................................................................................................... 4

3.1 Paste printing ............................................................................................................................ 4

3.2 Placement ................................................................................................................................. 5

3.3 Soldering ................................................................................................................................... 6

Application Note

2/7  PHYTEC Messtechnik GmbH 2017

1 Introduction

This Application Note provides a guide for how to solder the phyCORE-i.MX6UL modules.

For a good soldering result we recommend to use the same or nearly the same parameters.

Fig. 1: Top, Bottom and Side View

Do to of its weight and to reduce the soldering cycles, we recommend populating the SOM on to
the assembly side of the carrier board with the SOM’s assembly side facing upwards.

Soldering instruction phyCORE-i.MX 6UL/ULL

 PHYTEC Messtechnik GmbH 2017 3/7

2 Delivery Format

The modules are shipped in 56mm tapes with a feed of 48mm (outer reel diameter: 33cm). 175
pieces are on a reel and 10 empty slots are empty for mounting on a tape feeder.

Fig 2: Pin1 in tape on feeder

Abbildung 3:: Tape dimensions in mm

Application Note

4/7  PHYTEC Messtechnik GmbH 2017

3 Production settings

The Modules have the MSL Level 3, so it is required to store them adequately before soldering
(see IPC/JEDEC J-STD-033C). I.e. it’s recommended to store the modules shrink-wrapped in the
original packing or if the packing is opened to store them in a humidity reduced storage (rel.
humidity < 10%, T < 30° C / 86° F). The shelf life time in the sealed packaging amounts 12 months
at < 40° C and < 90 % rel. humidity.

3.1 Paste printing

For the paste printing we recommend at least a 100µ m stencil without pad reduction. We use
Type 4 paste.

Fig. 4 Paste printing (orange) without paste reduction, dimensions in mm

0.8

1.55

r = 0.36

Soldering instruction phyCORE-i.MX 6UL/ULL

 PHYTEC Messtechnik GmbH 2017 5/7

3.2 Placement

For a good accuracy the Modules have to be placed with a placement machine. Pin 1 is in the
corner of the NAND Flash (green marker). With the fix camera of the placement machine we check
the fiducials on the bottom of the SOM (Pin 1 marked with 3 instead of 4 fiducials, see Fig. 1).
The nozzle has to be able to pick up at least 6 grams, we pick the SOM with a Samsung CP45
TN110 nozzle in the middle of the module and place the module at last on the PCB.

Fig. 5: Dimensions of the module in mm

Link for dimensioned drawing of the bottom:

ftp://ftp.phytec.de/pub/Products/phyBOARD-Segin-iMX6UL/Layout/Footprint/phytec-PCL-063­Basis-35x35.pdf

17.5

18

17.5

18

Application Note

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3.3 Soldering

Our soldering profiles for the vapor phase soldering based on J-STD-020E (Table 5-2 Page 8).
The liquidous time amounts 60 to 90 seconds and we recommend maximally 3 soldering
processes. The peak body temperature of the populated parts is 260° C.

Fig. 6: Classifikation Profile (J-STD-020E)

Soldering instruction phyCORE-i.MX 6UL/ULL

 PHYTEC Messtechnik GmbH 2017 7/7

Please contact our technical support, if you need additional information, or if you have any
questions.

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