Electronics Forum: bottom side oxication (Page 7 of 120)

Bottom side process question

Electronics Forum | Thu Mar 15 15:36:39 EST 2001 | traviss

Don�t be afraid of the more standard doubles sided mixed process. Even without a chip wave it works, don�t get me wrong it works better with the chip wave, but even without chances are you will be spending more on the additional steps than you would

Bottom side process question

Electronics Forum | Wed Mar 14 18:17:40 EST 2001 | mparker

Some thing to watch out for is the cure spec for the adhesive. Will that match with your solder paste reflow spec? You will have two dissimiliar materials going through endothermic reactions at the same time. You could end up with under cured adhesiv

Re: Bottom side bridging

Electronics Forum | Fri Apr 10 20:35:59 EDT 1998 | Steve Gregory

| | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no problem. T

Re: Bottom side bridging

Electronics Forum | Mon Apr 13 08:42:32 EDT 1998 | Bob Silveri

| | | | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no proble

Bottom side adheasive

Electronics Forum | Thu Dec 11 04:25:06 EST 2008 | lconnor

I have previously experienced dispensing glue dots using a camalot system. This was used to dispense dots for a variety of components, as the SMT was applied post through hole and then wave soldered. No paste was used in the process. The other benefi

Bottom side process question

Electronics Forum | Thu Mar 15 18:27:40 EST 2001 | traviss

Like I said it was only a rumor I heard but intrigued me enough to play around with it one day. The lambda wave worked better than the chip wave did with makes me believe it was the surface tension of the solder not melting the already soldered parts

Re: Bottom side bridging

Electronics Forum | Wed Apr 15 15:04:18 EDT 1998 | D. Lange

| | | | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no proble

Re: Bottom side bridging

Electronics Forum | Wed Apr 15 14:57:20 EDT 1998 | D. Lange

| | | | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no proble

Re: Bottom side bridging

Electronics Forum | Wed Apr 15 14:53:06 EDT 1998 | D. Lange

| | | | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no proble

Re: Bottom side bridging

Electronics Forum | Mon Apr 13 08:47:09 EDT 1998 | Bob Silveri

| | | | | | | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no


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