Electronics Forum: past (Page 86 of 989)

Reduce flux

Electronics Forum | Thu Jan 18 15:28:10 EST 2007 | CK the Flip

If you are, in fact, running a No-Clean solder paste: Different no-clean solder pastes will leave different types of (benign) residues. If your paste has been qualified from a Bellcore/SIR/Electromigration standpoint, any residues remaining will NO

OA Pb-Free Paste

Electronics Forum | Sat Feb 10 22:32:56 EST 2007 | KEN

yup.

Reduction of solder paste usage

Electronics Forum | Wed Mar 07 08:37:29 EST 2007 | davef

First, don't put solder paste in a wave solder pot, the 50% by volume of organics and volatiles will gas off in an astonishing amount of fume, leaving a dismaying mess of spent resin and molten plastic in your pot. Second, when you say, "Paste that

double printing

Electronics Forum | Tue Mar 20 10:27:36 EDT 2007 | davef

Print styles: Print - Most common print mode * A single print stroke forward on first board * A single print stroke reverse on next board Print-Print (Double Print) * Both forward and reverse printing strokes * Helps to ensure complete filling of th

Stencil Thickness

Electronics Forum | Fri Jun 15 18:48:49 EDT 2007 | prologic

We have not processed very much 0402 size components in the past. We are finding that alot of our customers are upgrading their circuits and going with 0402 size parts. We recently processed one such circuit and odered a paste stencil 6 mil in thickn

Stencil Printing No lead

Electronics Forum | Tue Aug 21 12:57:49 EDT 2007 | ev

Looking for pointers. We have a semi-automatic SMT Techniques stencil printer. We have had some problems with a recent job. Problems were in the areas of finer pitch ics (paste voids as well as paste shorts and some smearing) in certain locations on

Epoxy on bottom of SMT component

Electronics Forum | Wed Nov 28 01:07:36 EST 2007 | shy

is there any standard gap between the terminal and pad if we place the glue? SMT-4 mention as per what you understand which is using glue at SMT without solder paste and run at wave solder for the solder paste at the terminal. Glue supplier recomm

Pasting a thru-hole part at SMT

Electronics Forum | Wed Dec 05 07:25:22 EST 2007 | realchunks

All posters here are right. My point was you have to design your board to the process. You cannot simply take any connector and change it to Pin and Paste. So much depends on your aperture openings, hole size to pin size, board thickness, number o

Solder Paste Inspection Systems

Electronics Forum | Fri Dec 28 08:21:12 EST 2007 | clampron

Good Morning All, I am looking into solder paste inspection systems. I have used a solder paste height inspection system in the past. We have derived less than usefull information from this system as it will only measure the pad that was taught. I h

Solder Paste Dry out

Electronics Forum | Wed Mar 05 17:03:36 EST 2008 | ratsalad

We had the misfortune of ending up with a batch of Kester EM907 that would start to "set up" well before it's shelf life was over. Since the lead time for a new batch was excessive, a Kester technical guru came to our facility to help us deal with t


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