Electronics Forum | Fri Apr 14 11:00:38 EDT 2000 | Dave F
Mario: Your ask a very broad question and give no background information. Generally, the amount and type of residues present on a printed circuit board at the very beginning of a SMT line depends on the exposure of the board up to that point. For
Electronics Forum | Thu Jan 02 11:35:30 EST 2003 | Richard
Cleanliness test � �Area Grid Arrays�. Evaluation of residues� resistivity in a specific location on the board. (As compared to �Solvent Extract� evaluation.) We are: SMT assembly, using standard �water soluble� process with micro BGAs (example: C
Electronics Forum | Thu Apr 12 09:12:19 EDT 2018 | san_jeev490
Hello, currently I am being getting solder pot contamination test form my supplier and results found okay to except. during the audit question was raised on historical data analysis, I request can some help me by sharing excel graphical template to
Electronics Forum | Mon Jul 10 21:01:06 EDT 2000 | Dave F
Edmund: Responding to your questions: 1 What is purpose of using DI water to wash a PCBA? Compared to tap water, DI water is less likely to leave: � Metal cations on sensitive components. � Salts of Ca, Mg, and other stuff on metals on the assemb
Electronics Forum | Fri Jun 05 10:24:56 EDT 1998 | Earl Moon
| I have just been assigned to look into the ionic chromotograhy test on our PCBA but I have zero knowledge. Could anyone help to explain what is this test about? Is it | a) a destructive test? | b) What is the measurement unit of this test? | c) Wh
Electronics Forum | Thu Dec 04 10:26:06 EST 2008 | billmeye
Is anyone aware of any white papers regarding the possibility of lead contamination on ROHS assemblies from using the same test fixture with the same test probes on both tin/lead and ROHS assemblies. We have customers switching over but we are still
Electronics Forum | Wed Mar 19 04:15:03 EDT 2008 | d0min0
Thank You Michael, as I read on previous contamination related topics I planned to ask your opinion on that directly :-) but You were faster than my action :) I will share Your opinion internally and hopefully we will take further actions best reg
Electronics Forum | Thu Jun 04 21:04:31 EDT 1998 | Chiakl
I have just been assigned to look into the ionic chromotograhy test on our PCBA but I have zero knowledge. Could anyone help to explain what is this test about? Is it a) a destructive test? b) What is the measurement unit of this test? c) What is th
Electronics Forum | Tue Jan 23 10:15:44 EST 2007 | slthomas
J-STD-001C just requires that the area not be so dirty as to contaminate your product, tools, workspace, etc. If you start counting particles, you're into cleanroom territory. Do a search on ISO 14644-1 for specifics. Actually Wikipedia does a ni
Electronics Forum | Fri Jun 05 15:06:26 EDT 1998 | Dave F
| I have just been assigned to look into the ionic chromotograhy test on our PCBA but I have zero knowledge. Could anyone help to explain what is this test about? Is it | a) a destructive test? | b) What is the measurement unit of this test? | c) Wh
