GE P&W Sievers 500 RLe User Manual

GE Power & Water
Water & Process Technologies
Analytical Instruments
Fact Sheet
Sievers 500 RL
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On-Line TOC Analyzer
Advancing the science of ultra low-level TOC measurement in microelectronics applications
Overview
The Sievers* 500 RLe On-Line TOC Analyzer is the semiconductor industry’s only on-line, reagentless TOC analyzer capable of accurately detecting problematic compounds such as urea, trimethylamine (TMA), organic acids and organic bases.
An on-line Total Organic Carbon (TOC) analyzer should be as simple as possible, but not so simple that it exposes the fabrication operations to unacceptable risks associated with undetected organic transients. Recently the leading global semiconductor immersion tool manufacturer has required all TOC measurements of the water feeding their tools to include the accurate measurement of organic nitrogen compounds in the ultrapure water (UPW).1 Some brands of TOC analyzers are simply not able to measure commonly present organic nitrogen compounds such as urea or TMA in the UPW. measures them to meet this new TOC performance requirement.
1,2
The 500 RLe accurately and reproducibly
showed that 91% of all the Instrument-to-Instrument TOC readings were within ± 0.05 ppb C. Additionally 44,272 LOD analyses were performed on the same ve analyzers, and 98% of the time the TOC LOD was less than 0.02 ppb C (see Figures 3 and 4). It is notable that this performance is achieved automatically without the need to do manual re-calibration operations or to send the analyzer osite for special calibrations, as often required by other TOC sensors.
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Design enhancements allow the 500 RL on higher conductivity waters than the PPT while still delivering the same analytical performance. As a result, the 500 RLe oers greater versatility and reliability. Specic attention has been paid to performance on low dissolved oxygen (DO) water systems, resolving TOC recovery issues that are problematic for other reagentless TOC analyzers.
to operate
The 500 RLe uses GE Analytical Instruments’ proprietary membrane conductometric technology, delivering ultra low-level accuracy and reliability by eliminating false positive and false negative readings associated with other simplied TOC technologies (see Figures 1 and 2).
The 500 RLe automatically exhibits the best-in­class Instrument-to-Instrument matching and the lowest Limit of Detection (LOD) for reagentless online semiconductor UPW TOC analyzers. Five 500 RLe Analyzers were placed on the same major semiconductor companies’ 0.3 ppb C UPW and data was collected for two months. The large data set
Applications
Microelectronics Ultrapure Process Waters
The 500 RLe Analyzer’s remarkable Instrument­to-Instrument matching allows you to condently compare TOC results between dierent water loops in your factory and around the world. The very high sensitivity, as demonstrated by the LOD, allows you to see the smallest change in your system before it gets out of control.
For the most advanced state-of-the-art chip manufacturing facilities’ requirements, there is never a question about unmeasured organics that may be
% Recovery on 5 ppb Injections
- Dissolved O
2
< 2 ppb
% Recovery for 5 ppb TOC Injections
500
400
300
200
% Recovery
100
0
900 500-24 500-19 PPT-6 PPT-9 A-1000 5000TOC
-100
2-Propanol Urea Acetic Acid C HCl3TMA TMAH
% Recovery for 5 ppb TOC Injections
% Recovery on 5 ppb Injections - Dissolved O2 < 2 ppb
400
350
300
250
200
150
100
% Recovery
50
0
TMA 2-Propanol Aceti c Acid Chloroform Urea
-50
Sievers (Membrane Conductometric)
Competition (Direct Conductometric)
Figure 1. Recovery comparison of Sievers and other brands
aecting the lithography or another critical process. Because you are measuring all the organics with the 500 RLe, your facilities engineers are given the best tool to optimize their processes. The top semiconductor companies in the world accept no other options for their critical UPW TOC measurements.
Low DO / Hydrogenated Water Applications
Low DO and hydrogenated water systems are becoming more common in microelectronics applications. Low DO systems present a signicant challenge to reagentless TOC analyzers because all reagentless TOC analyzers rely on the process water as a source of oxygen for fully oxidizing the organics in the sample.
In low DO systems, there is insucient oxygen available to facilitate full oxidation, resulting in articially low TOC results. If a contamination event occurs, the lack of oxygen may prevent complete oxidation of the organics. Consequently, most analyzers will show little or no change in the TOC value. Only the Sievers 500 RLe incorporates trace oxygen addition to ensure fully oxidized organics in low DO and hydrogenated water systems. This gives you the ability to see important changes in your water system that other analyzers completely miss (see Figure 2).
Figure 2. Recovery graph for TOC injections
Robust Method
TOC Recovery
The 500 RLe has been extensively tested to demonstrate comparability to the Sievers PPT Analyzer as well as superior performance relative to competitive TOC technologies. of the 500 RLe in normal and Low DO systems, compared to the PPT and alternative TOC technologies.
Risk of Simplied TOC Methods
Can you trust the TOC results from your analyzer to provide your fabrication engineers with the best measurement tools? Simplied TOC methods used in other TOC analyzers expose the water system and fab to contamination risks from compounds that these simplied technologies can not detect. In numerous published studies and technical papers, simplied TOC analyzers have been demonstrated to be incapable of reliable performance in waters containing even the simplest organic compounds — compounds known to exist in UPW systems, introduced through the feed waters, resins, system materials, and production processes. The Sievers membrane technology dramatically enhances the ability to detect and manage variations in TOC contamination that can go unnoticed and uncontrolled with older, more simplied TOC sensors.
1,2,3
Figures 1 and 2 show the performance
1,2,3
these
91% of Measurements are within ± 0.05 ppb C
5 Separate 500 RLe On-line TOC Analyzers- Matching on Same 0.3 ppb C UPW
Data Collected for 2 Months n = 155,925 data points
25%
20%
15%
10%
% of Total Readings
5%
14%
0%
Difference Cumulative
100%
99%
96%
91%
79%
62%
47%
34%
Instrument-to-Instrument Matching (ppb C)
100%
100%
120%
100%
80%
60%
40%
20%
0%
98% of LODs are Less that 0.02 ppb C
Five Each On-line 500 RLe TOC Analyzers- Same UPW-32 Days
LODs Calculated Using a 10 PT Moving Average N = 44,272 Separate LOD Analyses
80%
70%
60%
70%
50%
40%
30%
Cumulative %
20%
10%
0%
0-0.01 0.01-0.02 0.02-0.03 0.03-0.04 0.04-0.05 > 0.05
98%
99%
Percent of values Cumulative
99%
LOD (ppb C)
99%
100%
120%
100%
80%
60%
40%
20%
0%
Figure 3. Instrument-to-Instrument study results proving the ± 0.05 ppb C match between ve analyzers
Key Features
Economical Designs
The 500 RLe comes in two models to meet your needs. The 500 RLe with Standard iOS (Integrated On-Line Sampling System) utilizes the familiar Sievers sample inlet device, allowing for on-site calibration and running standards and grab samples. The 500 RLe Base Model utilizes a simplied sample inlet block, facilitating continuous on­line operation. On-site calibration may be performed using an optional iOS accessory. The 500 RLe Base Model is cost-competitive with even the simplest TOC sensors, while still providing superior analytical performance and optional on-site calibration.
Higher Conductivity Limits
The 500 RLe incorporates design elements from the Sievers 800 and 900 Series that enable reagentless TOC measurement in waters up to 25 μS/cm at neutral pH. Equally as important, this design enhancement means that upsets and abnormal uctuations in UPW system conductivity from plant transients do not aect analytical performance.
Figure 4. LOD study results proving the 0.03 limit of detection for multiple 500 RL
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Analyzers
the lowest detection limit of any TOC analyzer on the market — 0.03 ppb — and provides the condence that all organics are being fully recovered regardless of chemical composition. The automated advanced TOC zero function provides world class Instrument­to-Instrument matching of ± 0.05 ppb C, allowing you to compare critical dierences between water loops at your site or on the other side of the world. The combination of analytical sensitivity, Instrument-to­Instrument matching, robustness, and stable sub-ppb performance provides condence that critical UPW and fabrication processes are controllable and that even the most subtle trends can be closely monitored to protect your manufacturing processes.
References
1
Godec, Richard D., “Monitoring and Controlling UPW Organic Nitrogen Con­tamination to Improve Immersion Photolithography Process Control.” Presented at ULTRAPURE WATER Conference, Portland, OR, November 2011, Tall Oaks Publishing, Inc.
2
Godec, Richard D., ”The Performance Comparison of Ultrapure Water TOC Analyzers using an Automated Standard Addition Apparatus.” Published and copyrighted by Semiconductor Pure Water and Chemical Conference, 2000 Proceedings.
3
Kauman, Jon S.,Ph.D., “Validating On-Line TOC Analyzers for Real-Time Release.” Pharmaceutical Manufacturing, Nov/Dec 2006.
Sensitivity, Accuracy, Instrument-to-Instrument Matching, and Stability
With microelectronic TOC limits being driven ever lower, it is critical that TOC analyzers operate accurately and reliably at sub-ppb levels. The 500 RLe achieves
System Specications**
Total Organic Carbon
Range 0.03 to 2,500 ppb as C Accuracy Precision < 1% RSD or 0.03 ppb as C, whichever is greater pH Range 5.5 to 8.0 in order to meet accuracy specication Maximum Sample Conductivity 25 µS/cm at neutral pH Analysis Modes On-Line, On-Line Averaged, On-Line Timed Analysis Time Continuous mode: 6 minutes Average and timed modes: 0.5, 1, 4, 8, or 24 hours External Flow Rate Minimum 50 mL/min Sample Temperature 1° C to 95° C (34° F to 203° F) Sample Pressure Up to 100 psig Interferences Insensitive to organic heteroatoms and measures organic nitrogen Calibration Stability Typically stable for 12 months Display Readout 3 signicant digits
Instrument
Power 100–240 ±10% VAC, 50 W, 50/60 Hz Normal Operating Environment Intended for indoor use only Ambient Temperature 10° C to 40° C (50° F to 104° F) Maximum Relative Humidity Up to 95%, noncondensing Maximum Altitude 2,300 m (7,546 ft) Inputs One isolated binary input Outputs Three isolated 4-20 mA outputs, one Serial (RS-232), one USB port, one parallel printer port, four alarm outputs, and one Ethernet port Installation/Overvoltage Category II (protects against transients present in Category II power) Safety Certications ETL, CE Pollution Degree 2 (normally only non-conductive pollution) Display Backlit Quarter-VGA touchscreen display Dimensions H: 41.9 cm (16.5 in); W: 48.3 cm (19 in); D: 27.4 cm (10.8 in) Weight 16.9 kg (37.2 lb) IP Rating Environmental enclosure: IP 45
Consumables
UV Lamp 6 months Pump Tubing (with pump heads) 12 months DI Water Cartridge Typically 24 months (depends on water quality) Inline lter Replace as needed (depends on water quality) DI Water Level Rell As needed (check when replacing other items)
± 0.1 ppb or ± 5% of measurement, whichever is greater
*Trademark of General Electric Company; may be registered in one or more countries. **Stated analytical performance is achievable under controlled conditions that minimize operator and standards errors.
The Sievers 500 RL TOC Analyzers are protected by one or more of the following US and foreign patents: US 8,003,048; US 5,976,468; US 5,837,203; US 5,443,991; EP 0897530; FR 0897530; GB 0897530; DE 69702516.0-08. Other patents pending.
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www.geinstruments.com
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Asia Pacic
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300 00165 Rev E
ISO
9001:2008
QUALITY
MANAGEMENT
SYSTEM
MC12-043
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