Electronics Forum: solder (Page 768 of 2103)

Tombstone defect

Electronics Forum | Fri May 30 11:24:45 EDT 2003 | dsuraski

We also use microns to describe solder paste powder particle sizes.

Leaching

Electronics Forum | Fri Apr 25 14:56:40 EDT 2003 | razor

Please explain the phenomenon of solder leaching on SMD end caps. What is the root cause? What is the best control method?

Blocking stencil apertures (on purpose)

Electronics Forum | Wed Apr 30 21:18:55 EDT 2003 | davef

Morris Why do want to do this [keep solder from pads]?

Blocking stencil apertures (on purpose)

Electronics Forum | Thu May 01 09:19:59 EDT 2003 | davef

ehess Why do YOU want to block apertures to keep solder from pads?

MELF component/solder failure

Electronics Forum | Tue May 06 15:09:33 EDT 2003 | russ

Is that coating pliable? How is it cured? Russ

Solder Joint Microstructure

Electronics Forum | Fri May 02 08:26:36 EDT 2003 | davef

Bill Why do you want to do this analysis? There are limited IMC that can form.

Failure analysis

Electronics Forum | Thu May 22 12:08:36 EDT 2003 | Kris

What solder are you using ? what is the peak temeprature ? Are you using the right tools to place these components ?

Wave soldering of SMT components

Electronics Forum | Thu May 29 13:37:36 EDT 2003 | russ

IPC-SM-782 and IPC-CM-770 have somw pretty good info. Russ

Clean Solder paste

Electronics Forum | Fri Jun 13 09:37:33 EDT 2003 | davef

What does your current paste supplier suggest?

Clean Solder paste

Electronics Forum | Fri Jun 13 09:48:37 EDT 2003 | russ

Why not a water soluble paste? They have very active flux. Russ


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