Electronics Forum | Fri Sep 19 10:20:20 EDT 2008 | mi
I asked the stencil house we go to for quote on 29"x29" & anything larger stencil. Your board size converts to just 16.22"x26.9685". I don't know the next stencil size after 20"x20". Maybe, common is 29"x29"? I also asked about "frameless" stencils
Electronics Forum | Mon Oct 06 15:04:26 EDT 2008 | mikesewell
I've installed both (at different companies),currently a MPM 125 user. The DEK seemed slightly easier to program a new board. I guess it depends on which platform you're most familiar with. The Hawkeye inspection we had is fast to setup but doesn'
Electronics Forum | Wed Oct 08 09:25:45 EDT 2008 | dphilbrick
Kinda got that Mike but here is the problem. I have 1.8 mil parts that need to be NON-RoHS. 85% of those parts being STD R's and C's. I am looking for a place that provides at close to standard cost R's and C's with something besides pure tin termina
Electronics Forum | Wed Oct 15 21:53:59 EDT 2008 | mariss
50%) is high. With high humidity, there is also minor amount of spatter (10 to 20 'balls' per board). It is this that I would like to eliminate. I'm just a small guy running a young company here in Tustin, CA. Our product is very profitable and we
Electronics Forum | Thu Oct 16 07:38:35 EDT 2008 | rway
There are seconds when it comes to components. Find out what her sources are and if she is purchasing from a reputable vendor. She may be doing what all purchasing agents do, and that is finding the best deal out there. Especially if her review de
Electronics Forum | Thu Oct 16 11:15:53 EDT 2008 | davef
A good solder connection with heavy ground plane requires: * Plenty of heat [Is the preheater located too far from the wave? Whenever you look at board temperature, there is a sharp decrease in temperature between the preheater and the wave.] * Conta
Electronics Forum | Mon Oct 20 11:44:41 EDT 2008 | jdumont
Good morning all, we have been having some random intermittent connections on some BGAs lately on ENIG finished boards. Can you take a quick look at this picture (link) and let me know if it looks like a possible black pad occurrence? The picture sh
Electronics Forum | Thu Oct 30 15:07:40 EDT 2008 | jemills
Hello I have a new 0402 pad design on a recent board were building in future. On closer look i thought the pad was a thru hole mount , but upon closer inspection the round pads are for 0402 comps. I had a discussion with the engineer and he said
Electronics Forum | Thu Oct 30 15:36:18 EDT 2008 | grantp
Hi, Sounds like your engineer does not know what he's doing. We have developed and built hundreds of thousands of boards with normal square pads for 0402, and we just use a 5 thou stencil with 5% reduction and it works well. Decoupling? What is tha
Electronics Forum | Tue Nov 11 19:41:06 EST 2008 | gregoryyork
Thats the problem residual residue from HASL fluxes Lead free especially are worse.Very hygroscopic and out gass and produce dewetting as well over wave soldered boards especially. Leave iron on blown joint and will after several seconds fizz and pop
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