Electronics Forum | Fri Sep 20 04:47:29 EDT 2002 | byates
If I were you I would contact your solder paste applications engineer and your stencil applications eng. They are there for this very reason and are very capable
Electronics Forum | Thu Sep 07 10:39:34 EDT 2006 | vicknesh28
Can u elaborate on the bad plating? Have u had any experience on this before? The component has 90/10 Tin lead plating
Electronics Forum | Fri Sep 08 08:00:41 EDT 2006 | davef
That's your clue. Your reflow is running ~240*C and your soldering iron is running ~370*C. Dial-up the heat.
Electronics Forum | Mon Sep 29 11:44:39 EDT 2008 | manishc
We r facing less soder problem with qfp,using 4 mil tencil and lead free paste,tried out different combinations of reflow profile,can anybody suggest?
Electronics Forum | Mon Sep 29 14:47:15 EDT 2008 | davef
Let's narrow this down. Questions are: * Are you putting the proper amount of solder in the board with your stencil print process? * If you are putting the proper amount of solder in the board, where is the solder going? Pick one and then fill-in th
Electronics Forum | Tue Feb 26 14:39:19 EST 2013 | eniac
Hi, guys. Does anyone use a EBSO selective soldering machines? Can you write your parameters for two rows connector? Thx!
Electronics Forum | Mon Dec 20 12:50:27 EST 1999 | Wolfgang Busko
Hi Pascal, 0,65mm pitch normally isn�t much of a problem. With 90�m CU I don�t have any experience but would like to know what deviation from nominal value for the pads you get with different PCB-deliveries. In short, for the standard Cu=35�m we se
Electronics Forum | Thu Dec 06 12:37:14 EST 2012 | deanm
We are having difficulty with bridging on a 2x50 pin 0.050" fine pitch connector using our selective soldering machine. It usually bridges at the end of the row, but sometimes it bridges all the pins together as it drags across (solid bridging). I
Electronics Forum | Mon Aug 16 13:38:35 EDT 2010 | rl
i would like to request some advice on manually dispensing paste for super fine pitch components. first some background. i am a small design house and specialize in sub-miniature prototypes for avionics. so far, i have mostly used stainless steel st
Electronics Forum | Mon Dec 10 13:26:40 EST 2012 | dyoungquist
We are using our selective solder machine to solder a backplane with sixteen (16) 4x48 pin 0.080" connectors. Our first pass yield is about 85% meaning that 85% of the connectors come out with no bridges. Not quite as fine pitch as your connector a
