Electronics Forum: casing (Page 186 of 247)

Re: Solder Balls on end of long pins

Electronics Forum | Thu Sep 09 10:34:02 EDT 1999 | John Thorup

| I am wave soldering a single sided through hole PCB array with (6) .040" round diameter pins that sit .5" off the PCB, and .080" apart. The problem being experienced is that solderballs are appearing on the end of the pins. I have tried decreasin

Re: bga

Electronics Forum | Tue Sep 07 06:14:27 EDT 1999 | Earl Moon

| | I have a zevatech 570 and 560 my boss want to place bga.s with these machines, Ive told him he needs to ugrade to newer machines. Zevatech say "no problem our machine are number 1". | | these machines dont even offer bga selections. These machine

Re: bga

Electronics Forum | Tue Sep 07 22:07:56 EDT 1999 | NAZEEH CHAUDRY

| | | I have a zevatech 570 and 560 my boss want to place bga.s with these machines, Ive told him he needs to ugrade to newer machines. Zevatech say "no problem our machine are number 1". | | | these machines dont even offer bga selections. These mac

Re: bga

Electronics Forum | Tue Sep 07 22:15:26 EDT 1999 | NAZEEH CHAUDRY

| | | I have a zevatech 570 and 560 my boss want to place bga.s with these machines, Ive told him he needs to ugrade to newer machines. Zevatech say "no problem our machine are number 1". | | | these machines dont even offer bga selections. These mac

Re: bga

Electronics Forum | Fri Sep 17 13:26:43 EDT 1999 | The Guc

| | I have a zevatech 570 and 560 my boss want to place bga.s with these machines, Ive told him he needs to ugrade to newer machines. Zevatech say "no problem our machine are number 1". | | these machines dont even offer bga selections. These machine

Re: Standard pad sizes for reflow and wave

Electronics Forum | Fri Sep 03 14:37:45 EDT 1999 | JohnW

| | We've noticed that there are many different recommendations for pad sizes for various SMT parts. This seems to vary wildly from manufacturer to manufacturer for the same case sizes. Is there any standards that can used used to specify these siz

Re: Standard pad sizes for reflow and wave

Electronics Forum | Mon Sep 06 19:59:59 EDT 1999 | armin

| | | We've noticed that there are many different recommendations for pad sizes for various SMT parts. This seems to vary wildly from manufacturer to manufacturer for the same case sizes. Is there any standards that can used used to specify these s

Re: Standard pad sizes for reflow and wave

Electronics Forum | Tue Sep 07 09:11:33 EDT 1999 | Dave F

| We've noticed that there are many different recommendations for pad sizes for various SMT parts. This seems to vary wildly from manufacturer to manufacturer for the same case sizes. Is there any standards that can used used to specify these sizes

Re: Classification of moisture sensitive devices

Electronics Forum | Sat Aug 28 08:41:12 EDT 1999 | Tom Tellinghuisen

Wolfgang, We also tried to find generic 'guidelines' for Moisture Sensitivity levels. It would be a perfect world, if you could say that all PLCC84's were level 4 devices. Unfortunately it is not that easy. Moisture sensitivity levels are

Re: Where can I get delmat material

Electronics Forum | Wed Aug 25 14:34:38 EDT 1999 | Tony

| Can anyone tell me where I can get a good lightweight material to use for a soldering fixture? I need to make various fixtures to hold LED's vertical during the soldering process, and keep them from floating up off the board surface. | | At a dif


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