Electronics Forum | Tue Aug 24 21:52:06 EDT 2004 | rose
recently I met one very interesting issue with my board and connector. substrate of the board is copper with immersion silver, pad size is about 3x1mm. we print lead-free paste on the pad, then put the connector on the paste. The board was reflowed u
Electronics Forum | Wed Aug 25 20:48:17 EDT 2004 | rose
Hello recently I met one very interesting issue with my board and connector. substrate of the board is copper with immersion silver, pad size is about 3x1mm. we print lead-free paste on the pad, then put the connector on the paste. The board was refl
Electronics Forum | Thu Nov 03 07:43:52 EST 2005 | davef
Questions are: * Is the problem 'wire bonds that don't stick' or 'wire bonds that fall or break off later'? * What materials are you working with? * What is your working time after plasma clean? * What does surface analysis tell you about surface con
Electronics Forum | Thu Nov 03 12:48:14 EST 2005 | Rosewood
We have some no sticks, but that is actually a good thing because we have NSD. During process control audits we found that pull strengths to the board dropped off. We build a military application that requires higher bond strenghts. Low pull streg
Electronics Forum | Fri Jun 29 13:50:15 EDT 2012 | tbouslog
We are having some problems with parts that are glued on untill our PCBs go to wave coming off. We would like to test the stenght of the glue. Does anyone have any ideas on how to test pull off strength, torque strength, and push off strength? Any in
Electronics Forum | Tue Oct 17 17:27:08 EDT 2006 | adlsmt
Define "pretty easily". Did anyone ever do whatever is making them fall off now before? In most casses where a component "falls off" then someone implements a totally subjective test to make sure the rest of the parts wont "fall off" they damage a lo
Electronics Forum | Mon Jan 15 16:32:46 EST 2001 | Darby
Adrian, I'll go again. The term "snap off" on it's own refers to the distance between the bottom of the stencil and the top of the pcb. Sometimes referred to as "print gap". As you prefaced your question with "squeegee snap off" I thought you were as
Electronics Forum | Wed Mar 08 09:32:57 EST 2000 | Dane Stokes
We use loctite to print with before begining testing on printing we asked loctite for the best cleaning solvent for there product. loctite had there own solvent that was designed to break down the propertys of their glue mix. Contact glue supplier an
Electronics Forum | Wed Mar 08 09:32:57 EST 2000 | Dane Stokes
We use loctite to print with before begining testing on printing we asked loctite for the best cleaning solvent for there product. loctite had there own solvent that was designed to break down the propertys of their glue mix. Contact glue supplier an
Electronics Forum | Thu Aug 13 16:25:11 EDT 2015 | emeto
Loctite 3609. Just a small dot under the D-Pak and it works 100%.
