Electronics Forum | Thu Aug 06 10:24:01 EDT 1998 | Mike
Bob I have had problems with spotting on gold contacts for many years and have spent many hours working on ways to solve this problem. Once a source of the problem is found and corrected the next month another source will crop up (new operator on th
Electronics Forum | Wed Jun 10 13:42:22 EDT 1998 | FRANK
| We're running into problems with board damage (broken traces, solder shorts) due to pliers and other bizarre tools being used for depanelization. I need some sort of fixture for this. A delrin plate with a slot cut to the correct depth and width mi
Electronics Forum | Fri Mar 20 12:30:45 EST 1998 | Bill Schreiber
Smart Sonic introduces the first "No Risk" Guarantee for SMT Stencil Cleaners. No more shopping for a machine from one vendor, a chemical from another vendor and waste treatment process from a third vendor. Only to discover when the process fa
Electronics Forum | Fri Aug 17 12:07:40 EDT 2001 | davef
We always get pissed-off a preform suppliers when they tell us that we need to do NRE to develop a preform. Is that BS er watt? Ya got this vanilla connector that everyone on the planet uses and we have to pay NRE. It's just a scam. Try Teka Inte
Electronics Forum | Wed Nov 28 09:17:17 EST 2001 | Dave G
I've heard of reliabilty problems caused by wave soldering melf's as well. We don't put Melfs on the bottom of our PCB's on newer designs. We only have to deal with gluing & putting them through the wave on some of our older legacy designs. Increasi
Electronics Forum | Mon Sep 10 17:07:23 EDT 2001 | Dave G
I've mounted the $%&R$#$&%$(&! pain in the neck shield clips in the past. (Excuse the simulated profanity- I couldn't help myself.) What we went to was a frame & shield combination. (The frames are cast & then plated w/tin. We have used both plastic
Electronics Forum | Wed Oct 24 11:57:17 EDT 2001 | mparker
http://www.ceeris.com/DPMO.htm Ceeris is a company that may help you. They collect data and publish benchmark results. Their DPMO report will give you the data you need, for each process step. It's not cheap- they want $3000 per copy. Beyond that,
Electronics Forum | Wed Nov 07 21:16:44 EST 2001 | davef
Consider using the following hierarchy of rules for pad design: 1. If you have a land pattern in a manufacturer�s data sheet, use it. 2. If the data sheet doesn't have a land pattern, but does have an RLP (registered land pattern) number or JEDEC n
Electronics Forum | Thu Mar 07 15:42:34 EST 2002 | bdoyle
Sorry about creating a new thread, but I wanted to make sure that this didn't get buried. I was sent the files and have posted them to the library. http://www.smtnet.com/library/index.cfm?fuseaction=view_article&article_id=1077 There are three fil
Electronics Forum | Fri May 24 07:09:52 EDT 2002 | Andy Hoggan
Teh amount of silver on an immersion silver board won't effect 62/36/2 tin/lead/silver solder, however if the silver on the board is on the thick side and you have a high trace silver content in a 63/37 tin/lead then with the combination of the two y
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