Electronics Forum | Wed Jun 28 00:37:05 EDT 2006 | YQ Deng
Dear Davef, Please told me your Email address, then I send the photos to you. Thanks!
Electronics Forum | Wed Jun 28 07:44:25 EDT 2006 | davef
YQ Deng: Just click on my name next to the Lou Reed likeness in this posting.
Electronics Forum | Tue Jun 27 08:29:34 EDT 2006 | davef
It sounds like a board issue. With the current site software, you can not attach pix. You need to post the pix on another site [eg, imageshack, villagephotos, etc] and then post the link here. Or if only a couple of folk are interested, just email
Electronics Forum | Fri Jul 19 01:58:30 EDT 2019 | dhanish
May I know what is the requirement for side fillet for QFN?Any information from IPC spec on QFN side fillet?We cant make the solder joint form at the side fillet.
Electronics Forum | Wed Aug 23 15:10:24 EDT 2000 | Dr. Ning-Cheng Lee
Fillet lifting is a phenomenon mostly observed at wave soldering. It is caused by mismatch in thermal expansion coefficient (TCE) between solder and parts, and aggravated by the pasty range of solder alloys. Upon cooling, the mismatch in TCE will cau
Electronics Forum | Mon Jul 22 02:13:31 EDT 2019 | jandon
some PQFN package configurations have no toe exposed or do not have a continous solderable surface on the exposed toe and a toe fillet will not form. (IPC-A-610F 8.3.13)
Electronics Forum | Wed Jun 11 09:58:35 EDT 2003 | swagner
Solder fillet inspection is something that I would avoid like SARS, solder joints are like a snowflake no two are the same, henceforth unrepeatability. The only time I would look into this would be for uBGA or flipchip on an audit basis utilizing X-
Electronics Forum | Tue Jun 10 20:31:55 EDT 2003 | iman
In a perfect world, the machines would be maint."guys" for the automation machines. Think "closed loop" system. Anyway, getting back to our reality job, we are still game for automation to improve thru'put, quality, reduce problems. The focus here
Electronics Forum | Mon Jun 09 03:03:26 EDT 2003 | iman
With mounting interest in the "Automated Optical Inspection" thread revolving around SMTnet, was wondering from a end-user point of view, does anyone have recommended configuration AOI machine to recomend for purchase? what were the key benefits o
Electronics Forum | Tue Jun 26 15:40:12 EDT 2012 | ssupertuba
Hello there, I'm presently experiencing some blow holes and solder voids in the solder fillet of caps on boards. They are ceramic caps. The solder is SAC105 and the parts range from 33pf to 0.1uf ceramic. Any suggestions?
