Electronics Forum | Thu Nov 05 12:35:01 EST 2009 | martinphill
Davef, We have BGA (removed from PCBA). We have Cleaned up the pads. Instead of reballing can we directly mount on the Prime PCB like QFN. Thanks Martin
Electronics Forum | Wed Nov 11 23:45:53 EST 1998 | Mark D.
What are the factors that go into determining PCB Board temperature requirements for the Wavesolder process? Most of the recipes I've seen call for preheating the PCB to around 230F - 250F. This temp is about 210F - 230F below the typical solder temp
Electronics Forum | Tue Dec 07 10:59:46 EST 2004 | mevishu
Dear all. I am working on project to improve the productivity of palcement machine of my company .My prime cocern is CPH i.e components placed per hour. Rated capacity is 48000 componets/hour and what we actually acgieve is 23000. No doubt this mu
Electronics Forum | Fri Sep 01 16:44:41 EDT 2017 | dgaddisatprimepower
I've been struggling trying to get our TP9 machine to place 8-dfn package parts. One of our primary assembly contracts uses a SOIC8 but the pad design accommodates an alternate 8-DFN part and sometimes we have to go to our alternate part due to lead
Electronics Forum | Wed Jun 02 09:50:00 EDT 1999 | Earl Moon
| Hello all | I have a question concerning whether or not there is any special requirements to follow for assembly of a Polyimide PCB card. The customer has the following information on there documentation but since we have never built anything with
Electronics Forum | Thu Nov 12 03:58:10 EST 1998 | Earl Moon
| What are the factors that go into determining PCB Board temperature requirements for the Wavesolder process? Most of the recipes I've seen call for preheating the PCB to around 230F - 250F. This temp is about 210F - 230F below the typical solder te
Electronics Forum | Sat Jun 01 11:15:34 EDT 2013 | aemery
Delete the program and start over. I can't get a clear understanding the way you described the error, but it does sound like you have some kind of detent issue or a board stop programming issue. Depending on the configuration of your machine and th
Electronics Forum | Sun Sep 18 18:57:50 EDT 2011 | darby
Thanks ISD, I had a look at those papers from Freescale regarding the LGA "optimal zero-g offset after PCB mounting". Had me going for a while until I realised it was in relation to the finished product. Hmmmmm. LGA/QFN type. They can be a little t
Electronics Forum | Wed Oct 09 18:22:06 EDT 2019 | spoiltforchoice
Not easy is it. However this forum is not exactly throbbing with activity and I think anything that encourages more people to use it is a good thing. That includes useful input from people selling tools, equipment & services we might use. Perhaps if
Electronics Forum | Sun Feb 05 17:44:47 EST 2017 | spoiltforchoice
Printer->Paste Inspection(which might be a feature of the printer)->High speed placer (for all the little parts)->Accurate Placer(for your BGA Processor,RAM,eMMC and big things that don't fit in the high speed)->Reflow oven->AOI->PCB stacker All of t
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