Electronics Forum: through and hole and scrape (Page 3 of 10)

Foam fluxer maintenance, storage and cleaning

Electronics Forum | Sun Nov 08 15:27:25 EST 2015 | davef

Thinner: Flux thinner, NOT paint thinner We kept a spare stone in thinner in inventory. We cut PVC pipe to size, cap in one end, screw thread on the other, stone inside, filled with flux thinner and covered with a screw cap. I don't remember who we

Green coating and through-hole plating

Electronics Forum | Tue Aug 11 15:13:05 EDT 1998 | Xingsheng

Hi, can you please tell me how to make green coating and through-hole plating of PCB? Thanks! Xingsheng

Re: Silver Epoxy and CEM3

Electronics Forum | Fri Aug 28 23:32:39 EDT 1998 | Pete Sorenson

| Does anyone have any experience they are willing to share on Ag epoxy used as a copper through hole plating replacement? Was CEM3 used? | What are the limitations? | Thanks, | Steve I have used silver epoxy extensively for conductive bonding applic

Via holes and Wave Solder

Electronics Forum | Tue Mar 07 08:48:55 EST 2006 | samir

Our ICT Guy here at my company loves to use lots of via holes as test points - via holes which are 0.040" diameter, and spaced at 0.004" edge to edge spacing! He doesn't like to tent the via's either, so I always battle via-to-via shorts at the wave

Conductive Adhesives and flip chip

Electronics Forum | Thu Feb 12 21:30:45 EST 2004 | davef

Comments are: * We're amazed that you can thermocompression bond to epoxy. * Silver may be oxidizing during expoxy cure. * Klein Wassink talks about aging in THE BOOK [Soldering in Electronics: A Comprehensive Treatise on Soldering Technology for Sur

seperation of soldermask and pcb

Electronics Forum | Tue Mar 25 08:29:33 EDT 2014 | sara_pcb

Please refer the attached jpegs, The problem is noticed after reflow soldering followed by conventional through hole soldering. Flux used one is MIL Std. Brush cleaning in IPA is followed after each soldering step. regards, R.Saravanan

Via holes and Wave Solder

Electronics Forum | Mon Mar 13 06:11:08 EST 2006 | Rob

Surely this is a job for Wavemaster Larry? Have you tried flux buster pins in your ICT yet? They are quite good at cutting through the crap on a board.

Wave Cassettes and Heat convection

Electronics Forum | Mon Jan 15 11:41:56 EST 2007 | davef

Questions are: * Does the component take solder when you dip it in the solder pot to test the solderability of the leads? * Can you get full barrel fill when wave soldering a bare board? * Is your flux reaching the top of the board through the hole b

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Thu Nov 15 09:29:29 EST 2012 | anvil1021

Maybe this piece of information will help. In China (just returned from visit) there are many factories that are using a dual temperature process using SAC305 or Sn100C and 42/58. Apparently this allows them to run their through hole parts through re

Re: Silver Epoxy and CEM3

Electronics Forum | Thu Aug 27 17:40:11 EDT 1998 | Earl Moon

| Does anyone have any experience they are willing to share on Ag epoxy used as a copper through hole plating replacement? Was CEM3 used? | What are the limitations? | Thanks, | Steve Steve, Hello again. Hope you guys (Intel) aren't going to do that


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