Electronics Forum: grainy (Page 1 of 12)

Grainy soler

Electronics Forum | Tue Nov 05 22:57:50 EST 2002 | davef

Grainy solder is a process indicator. It is not necessarily a defect. Search fine SMTnet Archives for background.

Grainy Solder Joints

Electronics Forum | Fri Jun 25 15:48:55 EDT 2004 | tcp

The potting definitely is a factor in fracturing the grainy joints, but does not seem to damage a "good" solder joint.

Grainy SMT Solder Joint

Electronics Forum | Tue Apr 10 10:41:23 EDT 2001 | GregH

What's wrong if my solder joint is grainy ? what will be the effect on its strength ? what process problem is causing that ? regards

Grainy soler

Electronics Forum | Tue Nov 05 22:19:07 EST 2002 | Victor Salazar

I am seeing quite a bit of grainy solder joints. I am told this can be from being in a liquidus state for too long. Does anybody have any information on this defect?

Grainy soler

Electronics Forum | Mon Nov 11 18:16:54 EST 2002 | Victor salazar

Michelle, I am very interested in hearing your results. Do you have any pics of grainy solder? You may e-mail me direct with any info. I would appreciate it. Thankyou vsalazar@uasc.com

Grainy soler

Electronics Forum | Tue Nov 12 13:11:40 EST 2002 | steve

Your heating temperature is too low. Check your process and run the board through again. Then the graininess problem should go away. Or, try some different solder.

Grainy soler

Electronics Forum | Thu Nov 21 01:40:11 EST 2002 | ruimsig

The cause of grainy joints is either too high reflow max 225�C, 90 seconds or the reflow temp was tp low

silver pads, reflow charateristics??

Electronics Forum | Wed Jan 15 19:27:43 EST 2003 | praveen

Grainy finish of the solder joint also caused by higher reflow temp.So far we have observed grainy structure in case of gold plated board.

silver pads, reflow charateristics??

Electronics Forum | Wed Jan 15 19:27:44 EST 2003 | praveen

Grainy finish of the solder joint also caused by higher reflow temp.So far we have observed grainy structure in case of gold plated board.

facing cold joint problem

Electronics Forum | Sun Jan 18 10:13:59 EST 2004 | davef

Materials added to solder can change its appearance. For instance: * Gold in tin/lead solder is dull / grainy * Palladium in tin/lead solder is dull / grainy We do NOT advocate using visual appearance to define the appearance of a good and a bad so

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