Electronics Forum: 0

Tombstone defect

Electronics Forum | Mon May 05 09:53:13 EDT 2003 | k_h

Stencil thickness = 175 microns? If my math is correct, 175u=0.175mil, and if that is english units then it is inches. I'm not understanding this correctly, please clarify for my sake please, are you saying the stencil thickness is 0.000175 inches th

Solder Joint

Electronics Forum | Mon Jan 29 14:01:41 EST 2007 | realchunks

Well, they're all "HE"'s, which may be part of the problem (good one Dave) The customer "thinks" there may be a problem but has no actual proof. The part in question is a lug terminal. It's 0.145" by 0.175" and 0.020" thick. They couldn't "see" a

CCGA

Electronics Forum | Mon Apr 11 15:37:29 EDT 2005 | GS

For 1,27 mm Column Pitch, we set our process like this: - Stencil 0,20 mm If allowed also for other SMDs otherways some time 0,150 with step up stencil used only for CCGA area. - paste height min 0,175 mm - aperture 0,75 to 0,8 mm - paste volum

Solder Joint

Electronics Forum | Tue Jan 30 09:26:59 EST 2007 | CK Flip

I think most people don't "get" soldering, and advocate the "more-is-better" approach as if solder were duct tape - you know...the more duct tape you put on something the stronger the bond. Such is NOT the case with soldering. People don't "get" that

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