Electronics Forum | Thu Aug 13 19:38:07 EDT 1998 | Justin Medernach
| How bout a way to check the forum for new postings according to date. I have seen other forums that will give you an option to click on new messages and see what has been posted since the last visit. Mike, Thank you for being the first contributor
Electronics Forum | Fri Jun 25 17:33:17 EDT 2004 | davef
Nonductile fracture!!! Sounds peculiar. In that case, stop wasting you time messing with the thermal recipe. Either your: * Components have poor solderability [test this by dipping the leads of a couple of the SSOP in your solder pot and then asse
Electronics Forum | Tue Sep 14 14:25:35 EDT 2004 | scombs
Thanks everyone for all the input. All of our stencils do have the PCB # etched on the foil but when operators look for the stencils they are looking for the part # on the frame since they are all stored vertically in a couple of Remstar shuttles and
Electronics Forum | Tue May 17 10:11:54 EDT 2005 | russ
I would use a foam fluxer since spraying rosin will make the stickiest nastiest mess you can imagine. 18 layer board huh? You will want convection preheat, both top and bottom preheaters, preheat tunnel of at least 4-5', a chip wave, laminar flow w
Electronics Forum | Fri Feb 11 13:36:40 EST 2000 | Finepitch Services
Jeff, I guess my experience in such issues always took me back to the screen printing process and I only want to bring up that portion of the possible causes to this case. When we talk about coplanarity, the component lead coplanarity first comes t
Electronics Forum | Thu Jan 24 20:00:24 EST 2002 | davef
If solder touches gold, you should see solder, rather than gold. Since you see gold, something is wrong. * Is the solder touching the gold? If not, why not? * If the solder is touching the gold, but the gold is not soldering, there is a problem w
Electronics Forum | Tue Apr 27 14:14:10 EDT 2004 | finepitch
Steven, While agreeing with your method here, I also would like to ask a question since we're right on that subject. Have you ever experienced problems with IR heating while working with a Heat-Slug BGA, or a Viper BGA where the whole top is covere
Electronics Forum | Sat May 22 22:31:21 EDT 2004 | snehal acharya
hi to all, pls give me the detail chart for mil to mm/cm conversion if any since in SMD line all things we were talk is only in to mil so some time i get confused , for this pls clear my doubt you all genius seating there & pls don't laugh the questi
Electronics Forum | Mon Apr 18 10:01:33 EDT 2005 | global
The CCA drawing actually does belong to our customer as it is a DOD contract. We were the last ones to ever build the cards but since so much time has passed since the last build all of our PWB vendors like us have probably purged their systems of al
Electronics Forum | Thu Apr 28 11:14:27 EDT 2005 | bbarr
If you apply the RTV after coating, what happens to bond strength since you are now bonding to the coating and not the board? Will the caps still survive vibration and shock? I specify applying RTV before coating for this reason. Am I correct? I als
