Electronics Forum | Wed Jun 25 11:53:01 EDT 2003 | gmurray
Does anyone have a listing of recommended usage requirements on SMT components. Can you use SMT resistors which are over 3 years old for example ? Can you use ICs which are not known to be moisture sensitive but which are over 5 years old.
Electronics Forum | Fri Jun 27 10:48:18 EDT 2003 | Steve
We have considered running a spare board with each job as a possible solution, however due to the cost of the assembly, this would not be preferred.
Electronics Forum | Tue Jul 01 07:12:12 EDT 2003 | iman
actually, component sellers will have their own respective catalogue with all the available sizes used in their industrial business. Try your local "Rohm/Murata" sales-rep. for starters in the realm of chip components.
Electronics Forum | Fri Jul 04 09:01:49 EDT 2003 | davef
You should see a coarse silverish / grayish coat on the termination that indicates that it soldered. We have to opinion [don't know] about the strength of solder connection versus the strength of component terminations.
Electronics Forum | Wed Jul 02 19:06:21 EDT 2003 | Adrian Espinoza
Last week on my company we began a production for new model. Today we identify a possible non-conformance solder appareance. I have a picture for this defect to show the condition.
Electronics Forum | Thu Jul 03 07:59:53 EDT 2003 | loz
OK. Point taken, lets keep this simple then, how about just the issue of under cured solder resist? Any body else encountered such issues. Just feedback, 'cause its something that just seems to have been highlighted to me. Thanks.
Electronics Forum | Tue Jul 15 12:39:43 EDT 2003 | sam
Thank you Russ for your comment. This failure cause should have been confirmed as contaminated plating surface causing poor solderability and conductivity, according to all the testing and observations. The only question remaining to me is that why
Electronics Forum | Tue Jul 08 18:37:54 EDT 2003 | MA/NY DDave
Hi AlC, Q: Who calculates Cp, Cpk. It depends on the company, it's size and structure. Some expect the SMT / Process Engineer to do this work and others have all kinds of other groups involved. YiEngr, MA/NY DDave
Electronics Forum | Tue Jul 15 15:36:31 EDT 2003 | chad
Mike, I'd be more then happy to talk with you offline about pallets for flex assemblies. We have lots of experience with the manufacturing issues associated with them. Thanks, Chad Haima Pentagon EMS 503-924-2747 chadh@pentagon-ems.com
Electronics Forum | Thu Jul 10 23:38:58 EDT 2003 | Marcel
We have here a Radial inserter with 80 stations sequencer. We want to reduce that to 20 stations, so remove 3 banks on the sequencer. How can we change the configuration ? Is there dip swichts or something in the excutive to change ?
