Electronics Forum | Mon Mar 21 09:49:42 EDT 2011 | bwjm
Hi all, need help on getting a pick and place. i am think of getting used Philips Acm Micro. Is this machine user friendly and easy to program? This is my first time purchasing P&P. I have very limited budget and i saw some of these going off at USD$
Electronics Forum | Mon Mar 21 12:49:16 EDT 2011 | Nigel @ Rakon
I am having issues with Solder balls on Ceramic devices, all LEAD FREE SOLDER. The cermaics are only 7x5mm in size. The balls appear around the 0402 capacitors. I have a varying humidity from 15 to 40 %rh which is slightly low but I cannot control.
Electronics Forum | Fri Mar 25 10:50:01 EDT 2011 | grahamcooper22
3 deg / sec) then the flux can slump from the paste and solder is carried with it off the pad and will form balls. Finally, are your pcbs dry ? Pass a bare one through the reflow oven before you print any paste on it, let it cool and then process as
Electronics Forum | Tue Mar 22 16:48:05 EDT 2011 | kmots15
We use an evaporator plumbed into the output of the stencil washer, it works great and reduces our Haz waste. You might need to get some form of permit first as this could be considered treating Haz waste in some areas, depends if you do Pb on your
Electronics Forum | Mon Mar 21 15:29:15 EDT 2011 | rgduval
We don't like them on our MyData's, and recommend our customers not pay the extra money to have them done by Digikey. The small reels tend to get stuck in the MyData magazines, and are difficult to deal with. Since the MyData's handle strips fairly
Electronics Forum | Tue Mar 22 11:20:56 EDT 2011 | jercole
NEED HELP!!! I am getting solder splatters on my panels. We produce 100's of different kinds of product and this is the only one that is leaving solder splatters all over the masking. It is however the first time we have used 40 pin QFN's. I don't th
Electronics Forum | Tue Mar 29 15:17:19 EDT 2011 | davef
The minimum via hole size used will have a significant effect on the cost of the board as it limits the number of PCBs that can be drilled as a stack. Not withstanding the radio performance implications of small diameter via holes, typical minimum si
Electronics Forum | Wed Mar 23 19:57:18 EDT 2011 | dlou87
Im sure this has been gone over before, but what the heck! We are mounting LEDs on metal core PCBs. Almost all of them have domes of silicone on top. We have some large boards (largest is 2ft x 3") Not concerned with parts/hour or fancy features.
Electronics Forum | Fri Apr 01 17:45:31 EDT 2011 | smt_guy
thanks for all your replies. we tried running our beta runs and have lots of issues. first our molding process which was set to 450'F temp at 1200 PSI smashed the circuit card components and penetrated the epoxy compound we used to encapsulate the C
Electronics Forum | Fri Apr 01 03:02:59 EDT 2011 | grahamcooper22
starting point with zone settings would be, 100 / 160 / 200 / 225 / 260 deg C...but you'll have to check the exact profile on the pcb with a reflow profiler....making sure you meet the paste spec and making sure you don't heat any devices up to quic
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