Electronics Forum: solder and paste (Page 592 of 754)

Re: Printing Adhesive

Electronics Forum | Fri May 07 18:01:11 EDT 1999 | Bill Schreiber

Just a note about cleaning SMD adhesives. Cleaning does not need to be hazardous. Smart Sonic has a non hazardous process that has been used for over 9 years using a non hazardous detergent that has been certified by the AQMD as a clean air chemist

Re: Printing Adhesive

Electronics Forum | Fri May 07 18:02:37 EDT 1999 | Bill Schreiber

Just a note about cleaning SMD adhesives. Cleaning does not need to be hazardous. Smart Sonic has a non hazardous process that has been used for over 9 years using a non hazardous detergent that has been certified by the AQMD as a clean air chemist

Swatch Group Granted Lead Exemption?????

Electronics Forum | Wed Apr 25 10:45:25 EDT 2007 | slthomas

I read the request months ago with great interest. However, a request is hardly an exemption. Here's my issue with the language: "23. Lead in finishes of fine pitch components other than connectors with a pitch of 0.65 mm or less with NiFe lead fra

Solder wetting to ENIG pads

Electronics Forum | Wed May 14 12:42:16 EDT 2008 | rgduval

Dave, Realized I didn't respond to one of your questions. We pasted and reflowed one board, with no components. This board exhibited extreme dewetting on all pads. The board was LF-HASL, and the paste was Qualitek (which we've used for approximat

Flason SMT Products

Electronics Forum | Thu Oct 04 00:05:25 EDT 2018 | gaintstar

Flason SMT chip mounter Reflow Ovens: http://www.flason-smt.com/product/PCB-assembly-line-equipment-SMT-spare-parts-Dek-Motor-188962.html http://www.flason-smt.com/product/PCB-Conveyor-for-LED-Production-Line-SMT-Assembly-Line.html http://www.flason-

Re: Off Pad Printing

Electronics Forum | Wed Jun 30 06:28:12 EDT 1999 | Earl Moon

| | snip | | | John and Dave, | | | | Again, I don't work with larger chip devices with this issue. The company I now work with developed a strategy, based on considerable research (as others of us did in the past), to do things like placing 0603'

Re: Off Pad Printing

Electronics Forum | Wed Jun 30 08:58:59 EDT 1999 | M Cox

| | | | snip | | | | | John and Dave, | | | | | | Again, I don't work with larger chip devices with this issue. The company I now work with developed a strategy, based on considerable research (as others of us did in the past), to do things like p

142-1711-801 installation issues

Electronics Forum | Thu Jan 13 22:05:46 EST 2022 | mihai_voivod

-Thank you Thomas. In the past I have tried using a clip to hold it in place and it partially worked as a significant amount of connectors ended up shifted causing defects and necessitating rework. -I am going

Paste life span on the printer

Electronics Forum | Wed Mar 14 09:07:34 EST 2001 | blnorman

We just ran a study to try to determine this. We exposed the paste to 85% humidity to simulate worst case manufacturing. At various times we removed the paste from the chamber and tested it for tack, solder balling, wetting (copper coupon), and vis

Re: Cleaning solvent for missprinted PCB (paste & Glue)

Electronics Forum | Thu Apr 02 11:12:34 EST 1998 | Justin Medernach

| Looking for Cleaning solvent to claen missprinted PCB, that will be good for paste (CS) and glue (PS). | One that is easy to evaporate with out leaving | white powder around component leads on CS (when cleaning PS) Ron, If you are running a no-cle


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