Electronics Forum | Tue Aug 22 08:15:34 EDT 2000 | Mark
I have a customer that has a wrong pin out on a TSOP32. The Raw PCB is expensive, "time to market concerns", and respin lead times are forcing an alternative solution. He would like to design a "conversion" daughter board with the correct pin out to
Electronics Forum | Tue Aug 22 13:19:24 EDT 2000 | Travis Slaughter
Depending on how wrong the pinout is another possibly a little less ugly option would be to bend the wrong pins up then wire them to the correct pads after reflow of the correct pins. You may want to trim the ends of the pins a bit use heat shrink or
Electronics Forum | Wed Jan 26 12:22:52 EST 2000 | Mikel Rodriguez
The diode doesn�t appear completely broken. It takes a bit white color (cristal break, I think), instead of the normal red/orange. It works like a 20K-200K ohm resistor. !The diode can be working properly and sometimes change to bad! I think it may
Electronics Forum | Thu Jun 17 17:26:56 EDT 1999 | wayne sanita
first of all what is the technical term for the small amount of solder on a plated pad. we are getting poor screen printing gasketing on a 20 mil qfp due to this solder not being even or too high in spots and not covering the length of the pads. any
Electronics Forum | Thu Mar 27 14:09:41 EST 2003 | Enrique Chairez
Hi All, I have observed this problem with one PCB supplier, the portion of the PCB area affected was cut and observed in SEM (Scanning Electron Microscope) and submitted to an EDX (Energy Disperse X ray analysis), finding Phosphorus levels higher
Electronics Forum | Thu Feb 13 08:28:47 EST 2003 | pjc
Call 1-800-737-8110 for tech support. They can give you the N2 supply specs for the 650C. You should consider the cost to convert the Contour to a standard Lambda vs. the cost to bring in N2 and the consumable costs. Tech Support can give you the ret
Electronics Forum | Mon Oct 20 11:48:34 EDT 2003 | blnorman
Who said there was NO evaluation? The paste we chose was evaluated based on a 20 point test score as well as material compatibility. Once we introduced it to manufacturing each line had problems. For one manufacturing treated it as a drop in repla
Electronics Forum | Wed Feb 09 12:31:54 EST 2005 | russ
We are not doing this right at the moment but I have done it with great success. Of cource it depends on your pad layout we have a 20 mil gap in between pads, we printed at 10 mil wide with a 5mil stencil. I will try to find the glue we used, I kno
Electronics Forum | Wed Aug 31 11:02:28 EDT 2005 | Jason Fullerton
We are using one BGA that has 7 mil bumps on a 20 mil pitch. We use the manufacturer's recommended pad and aperature layout, which is an 11.8 mil square overprint on a 6 mil land. At 11.8 square, you need to use a 4 mil laser cut or a 5 mil e-form st
Electronics Forum | Tue Apr 17 19:37:19 EDT 2007 | Cmiller
I would also encourage you to talk to some brokers. If you just need something to cut them off the tape, I have a pile of that stuff (no-I am not a broker)and so does everyone. But if you need to kink leads, it will be expensive and in most cases the
