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Experience & Issues From
Solvent Testing
Joseph Federico
Director of Operations
NJ Micro Electronic Testing Inc.
joef@njme...
Issue: One Solvent Test Approach
Does Not Fit All Components
Over the past years, new techniques of black top, remark and
...
Industry Alert and
Experiences
Improper Exercises and
Applications of Solvent
Testing
2.
The following example will
demonstrate a Texas Instruments
SNJ54HC4040J which failed
Dynasolve testing that should have
ne...
Example – Wrong Exercise of SNJ54HC4040J Failing
Dynasolve Test on a Non-Resurfaced Package
Hermetically Sealed Ceramic Pa...
The following example will
demonstrate a National LM158H that
failed Mineral Spirits testing which
should have never been ...
Example - Wrong Exercise of Can (Non-Resurfaced) Part
Failing Mineral Spirits Testing
TO-Can Device LM158H
6.
7.
Group One
Non Military Non PCB Assembly
Solvent Test for Remarking and Resurfacing
SAE AS6081 Para 4.2.6.4.3
Industry Observation
Scrape Test
Experiences in Scrape Testing Have Been Helpful in Early
Stage Detection of Resurfaced El...
Single Use 6" in Length Sterile Applicator Cotton tip
and Wood Shaft Specimen Data Collection Applicator
9.
Industry Recom...
MINERAL SPIRITS TEST FAILURES ON
JM3851-00801BCA
10.
ACETONE TEST FAILURES ON ATMEL
AT49BV642D-70TU
11.
1-METHYL 2-PYRROLIDONE TEST FAILURES
ON ATMEL AT17C256-10JI
12.
DYNASOLVE TEST FAILURES ON CYPRESS
CY7057V-15AI
13.
• Marking Permanency Testing
Mil Standard 883 (Microcircuits) and 750
(Semiconductors)
Recommended for Hermetically Sealed...
Test Marking Permanency Per MIL STD 883, MIL STD 750
Application of Resistance
to Solvents Test
Step A
15.
Marking Permanency Per MIL STD 883, MIL STD
750 Step B
Application of Resistance
to Solvents Test
16.
Marking Permanency Per MIL STD 883, MIL STD 750
Step C / D
Application of Resistance
to Solvents Test
17.
18.
Recommended
• 3 Long Rows of Hard Bristle
• Non Reactive Material
Example: Parts Passing MIL STD Marking
Permanency Test
Hermetically Sealed Ceramic Package
19.
Conclusion: Industry
Recommendation
While Mineral Spirits testing, Acetone testing, 1- Methyl 2- Pyrrolidone
testing and D...
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Issues in Electronic Component Marking Permanency Testing

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Joseph Federico, Director of Operations at NJ MET, Inc., illustrates cases where Marking Permanency Testing of electronic components produces false positives.

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Issues in Electronic Component Marking Permanency Testing

  1. 1. Experience & Issues From Solvent Testing Joseph Federico Director of Operations NJ Micro Electronic Testing Inc. joef@njmet.com 1240 Main Avenue, Clifton, NJ 07011 (973)-546-5393 Ext. 218 Website: www.njmetmtl.com
  2. 2. Issue: One Solvent Test Approach Does Not Fit All Components Over the past years, new techniques of black top, remark and resurface marking tests have been implemented to discover non authentic marking and coating processes on electronic component devices. These tests can be highly effective at discovering counterfeit plastic components, however the same tests can result in false positives when used on ceramic packages that have not been blacktopped / coated or on can package devices that have not been resurfaced. The objective of this presentation is to illustrate the proper groups associated with solvent testing. Background 1.
  3. 3. Industry Alert and Experiences Improper Exercises and Applications of Solvent Testing 2.
  4. 4. The following example will demonstrate a Texas Instruments SNJ54HC4040J which failed Dynasolve testing that should have never been exercised. EXPERIENCE - IMPROPER REQUEST OF A HERMETICALLY SEALED (Non-Resurfaced) PACKAGE FAILING DYNASOLVE TEST 3.
  5. 5. Example – Wrong Exercise of SNJ54HC4040J Failing Dynasolve Test on a Non-Resurfaced Package Hermetically Sealed Ceramic Package 4.
  6. 6. The following example will demonstrate a National LM158H that failed Mineral Spirits testing which should have never been exercised on a Can (Non-Resurfaced) Package. EXPERIENCE - IMPROPER REQUEST OF A CAN (Non-Resurfaced) PACKAGE FAILING MINERAL SPIRITS TESTING 5.
  7. 7. Example - Wrong Exercise of Can (Non-Resurfaced) Part Failing Mineral Spirits Testing TO-Can Device LM158H 6.
  8. 8. 7. Group One Non Military Non PCB Assembly Solvent Test for Remarking and Resurfacing SAE AS6081 Para 4.2.6.4.3
  9. 9. Industry Observation Scrape Test Experiences in Scrape Testing Have Been Helpful in Early Stage Detection of Resurfaced Electronic Components 8.
  10. 10. Single Use 6" in Length Sterile Applicator Cotton tip and Wood Shaft Specimen Data Collection Applicator 9. Industry Recommendation
  11. 11. MINERAL SPIRITS TEST FAILURES ON JM3851-00801BCA 10.
  12. 12. ACETONE TEST FAILURES ON ATMEL AT49BV642D-70TU 11.
  13. 13. 1-METHYL 2-PYRROLIDONE TEST FAILURES ON ATMEL AT17C256-10JI 12.
  14. 14. DYNASOLVE TEST FAILURES ON CYPRESS CY7057V-15AI 13.
  15. 15. • Marking Permanency Testing Mil Standard 883 (Microcircuits) and 750 (Semiconductors) Recommended for Hermetically Sealed Ceramic and Can Packages which show no evidence of resurfacing as well as Aerospace and Military Marking Tests. Proper Exercises and Experiences: Group Two Military and Industrial Non Resurfaced PCB Assemblies 14.
  16. 16. Test Marking Permanency Per MIL STD 883, MIL STD 750 Application of Resistance to Solvents Test Step A 15.
  17. 17. Marking Permanency Per MIL STD 883, MIL STD 750 Step B Application of Resistance to Solvents Test 16.
  18. 18. Marking Permanency Per MIL STD 883, MIL STD 750 Step C / D Application of Resistance to Solvents Test 17.
  19. 19. 18. Recommended • 3 Long Rows of Hard Bristle • Non Reactive Material
  20. 20. Example: Parts Passing MIL STD Marking Permanency Test Hermetically Sealed Ceramic Package 19.
  21. 21. Conclusion: Industry Recommendation While Mineral Spirits testing, Acetone testing, 1- Methyl 2- Pyrrolidone testing and Dynasolve testing has been vital in uncovering many anomalies associated with parts that have been remarked or resurfaced, we have shown that using these techniques improperly on hermetically sealed ceramic devices or can packages that have not been resurfaced can result in false positives. 20. Proper Exercises and Applications • Group 1: Marking Permanency Testing - Mil Standard 883 and 750 • Group 2: Solvent Test for Remarking - SAE AS6081 Para 4.2.6.4.3 • Group 2: Solvent Test for Resurfacing - SAE AS6081 4.2.6.4.3

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