Electronics Forum | Wed Nov 06 11:12:33 EST 2002 | blnorman
I agree whole heartedly. Unfortunately in the different industries I've worked (garment, appliance, aerospace, and now electronics) this is a common issue. These procedures are in place for product reliability as well as safety. I trained at the
Electronics Forum | Fri Nov 08 09:35:37 EST 2002 | dphilbrick
ESD safe and conductive are 2 totaly different situations. There are ESD safe carpets but I don't think I have seen coductive carpet. For heel straps to work in a carpeted area it would have to be conductive. Don't get the 2 mixed up it can cause dea
Electronics Forum | Thu Dec 05 17:45:31 EST 2002 | Gris
Hi, Is the limit for " 10.07 " for assemblies ? I guess we need to calculate how much ionic residue the boards see after assembly and cleaning. and then calculate back to the board spec if i am not mistaken ? For bare fabs we have to access the li
Electronics Forum | Fri Dec 13 09:06:30 EST 2002 | russ
One thing I have found when using square or diamond etc... Fiducials is, if it is a HASL finish board, the finish may be thick and the fid camera will see them having rounded edges different sizes etc.. and will cause quality failures. Russ (My sp
Electronics Forum | Tue Dec 17 08:46:59 EST 2002 | Randy Villeneuve
Personaly I would try a different solder paste. Give Indium a call and get a sample of their SMQ92J No clean. You will be impressed. Alpha and Kester also have good products but we have a long history with this paste and we have printed millions of b
Electronics Forum | Mon Dec 30 01:31:36 EST 2002 | MA/NY DDave
Hi I think you already have the answer. It isn't the same as the true comparator of yesteryear, yet YES, some of the assembly machines have visualization post placement, compared to a golden board or dimensional images imported into the software.
Electronics Forum | Sun Jan 19 10:25:54 EST 2003 | davef
You shouldn't freak. You want the pads on both sides of the BGA ball the same so that the torgue from changes in dimension due to different CTE [ie, interposer, solder, bare board, etc.] is balanced on the top and the bottom of the ball. So, the ma
Electronics Forum | Mon Jan 20 01:46:24 EST 2003 | Claudia
I am looking for a FPBGA adapter (pin 256 pitch 1.00mm size 17mm x 17mm). We need the adapter to interconnect the FPBGA from the handset board to a SW test board. Question: Where can I find BGA adapter with different heights? What do we have t
Electronics Forum | Tue Jan 21 20:51:47 EST 2003 | davef
I assume you want to convert your BGA to PGA. We talked about converter / adapters here on SMTnet Previously. Search the fine Archives. For insyance: http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=5315&#Message207
Electronics Forum | Sat Feb 01 15:25:42 EST 2003 | MA/NY DDave
Hi Again I would rather you have someone analyze this rather than using another person's data from potentially a completely different type of application. The fact that he said the reliability was the same as rigid kind of bothers me. Usually on fl
