Electronics Forum: give (Page 36 of 455)

Sma dispensing

Electronics Forum | Thu Apr 09 12:57:23 EDT 1998 | Rick Zak

Can anyone give me the specs on SMA dispensing for 0402 components and up. Is there such a spec or is it based on each individuals needs? DO most people use volumetric measures or dot diameter to determine correct amount of SMA? if diameter what size

Cold Welding Phenomenon

Electronics Forum | Mon Mar 09 07:29:21 EST 1998 | Tom Mc Grath

Cold Welding I'm presently doing a project on reflow profiling. I came across this expression. Can someone please give me a definition. Best Regards Tom Mc Grath

Voids and BGA

Electronics Forum | Sun Mar 01 14:51:55 EST 1998 | Vincenzo Longobardo

From several months I am investigation about the VOIDS PERSENCE and his important as reliability. One question now is : It is possible that on the BGA components the voids are already present into the balls, before the mounting on the pcb ? If you ha

BGA removal

Electronics Forum | Mon Feb 23 23:24:13 EST 1998 | Craig Fernandes

Can anyone give me any info on the effective removal of BGA's? I need to be able to take a variety of BGA's off boards quickly without creating pad damage. I am not yet concerned about the re-attach process.

Flux splattering during reflow

Electronics Forum | Tue Jan 06 21:19:05 EST 1998 | Dominic Nguyen

We use no clean paste and sometimes experience flux splattering which gives spot on gold fingers. Need help in analize the cause. thx.

Voids in micro-BGA solder joint

Electronics Forum | Tue Dec 23 01:23:45 EST 1997 | J.H Kim

I'd like someone gives me a tip for elemating of voids in the mico BGA solder joint and the method of inspection of them, very exactly.

Re: Voids in micro-BGA solder joint

Electronics Forum | Tue Dec 23 01:25:38 EST 1997 | J.H Kim

| I'd like someone gives me a tip for elemating of voids | in the mico BGA solder joint and the method of inspection | of them, very exactly.

Tomb stoning

Electronics Forum | Mon Dec 22 02:25:45 EST 1997 | Sultan Mahmood

WE have a problem of tomb stoning in our smd assemblies during curing process of the boards in our Infra Red Soldering bath. Would you like to give us solution how to resove this proble? Thankyou Regards

Re: Tomb stoning

Electronics Forum | Mon Dec 22 02:33:25 EST 1997 | jergog

do a good edit on the smt machines | WE have a problem of tomb stoning in our smd assemblies during curing process of the boards in our Infra Red Soldering bath. Would you like to give us solution how to resove this proble? | Thankyou | Regards

SMT rework station

Electronics Forum | Fri Dec 19 11:32:46 EST 1997 | Kris Ganev

Can anybody give me feed back on the pro and cons of using Pace, OK, Hakko, Metcal, etc... equipment in their rework processes? I need to set up a low volume rework station for mixed technology boards. Would appreciate any suggestions.


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