Electronics Forum | Mon Oct 24 06:31:31 EDT 2022 | richardcargill
We have a similar board and came up with a quick and dirty solution. The board locates via pins onto a manual desk press with strategically placed feet to break the mouse bite. Not really much quicker than doing it all by hand, but after a thousand p
Electronics Forum | Wed Dec 13 20:46:46 EST 2000 | Dave F
I�ll bite ... Why can�t you calculate LSL/USL values from your control charts? We find that LSL/USL values generally are unknown. If you are seeking a text on statistical analysis consider: "Statistical Process Control for Surface Mount Technology"
Electronics Forum | Thu Aug 30 21:57:02 EDT 2001 | davef
We don't use fussy things like that to remove mouse-bite tabs when they are not designed to be removed. Just cut away the majority of the waste using sheet metal shears. Then burr the remainder and the rough parts with a Sears wood router [bought a
Electronics Forum | Fri May 10 10:36:09 EDT 2002 | stownsend
Could be. Bottom line is my frustration is high with ENIG. It has it's merits, but if it's not done right, it'll bite you in the butt. Too many other choices to keep this frustration around. I have never used OSP. I'm requesting 200 boards from my b
Electronics Forum | Fri Feb 07 16:10:14 EST 2003 | MA/NY DDave
Hi Gee, It seems funny to comment on your own post. I notice that the original poster and a respondent, like me, are striving to create some voiding by design to improve the way this joint will form. NEAT!! I still think that those vias as DaveF p
Electronics Forum | Mon Apr 14 12:40:28 EDT 2003 | jimcorr
They are letting you go on holiday with these problems outstanding??!! But seriously after reading about your problems I think that any further work is basically throwing good ��$$ after bad and reworking BGA almost always ensure that they will fail
Electronics Forum | Thu Jan 29 22:13:08 EST 2004 | davef
OK, I've got it. Here's what you should do: * Call your friendly, local electronic contract assembly shop. * Tell them that you are "Joe College", you currently build pin through hole boards, but want to start using SMT, and that you want to conside
Electronics Forum | Fri Jan 14 00:14:48 EST 2005 | fastek
Grant- Ask yourself this question: Can your company afford to spend $350K on the best line possible? Because that is what it will cost you to get in to a used CP-643 and GSM-2 line. Bite off on that and your world will become rosy again. Buy those t
Electronics Forum | Tue Nov 08 20:58:49 EST 2005 | davef
We buy humidity as a potential cause of solder balls, but we're not biting on dewetting. Something else is causing that. Questions are: * What's the temperature and RH of your SMT production area? * What kind of paste are you using? [Some water was
Electronics Forum | Wed Mar 15 04:32:14 EST 2006 | rlackey
Hi Brad, I don't know if this helps, but we had a policy of not accepting x-outs on rigids, and of max 10% per panel on Flexy boards (as long as the local fiducial was blacked out for the bad board) I'm always suspicious of x-outs as it points to pr
