Electronics Forum | Sat Feb 15 06:40:14 EST 2003 | Hans Koerner, Germany
It is a serius problem with that mulilayer ceramic caps! In automotive applications you have to use 2 in series for one single cap. During depanelizing you create a mechanically wave in the board, so 3.. 4 mm. Best way is not to do such a wrong desig
Electronics Forum | Wed Feb 05 10:31:38 EST 2003 | bpan
Hello Everyone, Is anyone out there building smt boards that have plated through vias directly located through the pads. We are seeing some of these designs and the soldering is very poor because the solder is flowing through the via. We think that w
Electronics Forum | Wed Feb 05 21:05:38 EST 2003 | davef
Iman On your situation: As an earlier poster stated, your options are limited to opening you stencil aperture to compensate for the paste lost to the via. On your designer's belief that "it helps in heat dissipation": Could be true, but: * Hole wil
Electronics Forum | Thu Feb 06 13:57:01 EST 2003 | D. Brian Davis
I need some feedback on aqueous cleaners. We currently use a Unit Design batch cleaner. We will be looking to upgrade our board washing process and batch sizes in the near future. I am looking for user info. on the advantages/disadvantages to using b
Electronics Forum | Sat Feb 15 07:56:31 EST 2003 | Michael
Hello, I am looking for a very simple 2 port USB hub design that I can incorporate into an existing project. I am interested in using a Texas Instruments USB chip but I am not sure what other components are required to create the USB hub. If anyon
Electronics Forum | Wed Mar 26 22:17:09 EST 2003 | dlkearns1
I Like your analysis here. I dunno the whole story, but I've tracked parts popping/falling off to the metalazation of the parts, from various suppliers, as most suppliers have some type of pre-tinned coating on the leads.(not that this means anything
Electronics Forum | Wed Feb 26 18:48:01 EST 2003 | kennyg
I'm trying to solder a 0.011" lead into a 0.015" +/-0.003" hole. Stop laughing please. This is normally possible with difficulty, except if the lead is removed and the attempt is made to re-install a lead. Anyone have thoughts on how to remove nea
Electronics Forum | Sat Mar 01 16:46:26 EST 2003 | MA/NY DDave
Hi Hey thanks, you are welcome for the link. Well to be precise dissimilar metals will corrode at some rate and also depends on the environment. Look at a Galvanic Table. Yet maybe for your application and the ones AMP designed this part for, the c
Electronics Forum | Mon Mar 03 11:23:04 EST 2003 | MA/NY DDave
Hi If you don't know what these puppies are, HAVE the customer specify them. You will be MUCH Safer in the long run since if you choose the wrong value they will COME Back at YOU. He might even need a network of .1 .01 Piles of places to read; Bo
Electronics Forum | Wed Mar 05 02:59:00 EST 2003 | MA/NY DDave
Hi I was poking around for awhile and gave up on time. With a little more I could probably find a good article. Yet here is an article that tells you a little about decoupling capacitors although really more focussed on higher values. I thought abo
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