Electronics Forum | Wed Jul 02 19:06:21 EDT 2003 | Adrian Espinoza
Last week on my company we began a production for new model. Today we identify a possible non-conformance solder appareance. I have a picture for this defect to show the condition.
Electronics Forum | Wed Jul 02 21:40:44 EDT 2003 | davef
Email me your pix Here how one SMTnetter posted pix: http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=6046&#Message24067
Electronics Forum | Wed Mar 23 05:17:23 EDT 2011 | arwankhoiruddin
Hi All. I want to know what is the IPC/JEDEC standard for solder paste printing defects. From the brochures of SPI Machines, the recognized defects are excessive, insufficient, misalignment, no solder, bridging, and solder shape error. What document
Electronics Forum | Wed Aug 01 18:42:23 EDT 2018 | deanm
How close are your SMT pads to the gold fingers? Can you supply a photo?
Electronics Forum | Fri Apr 03 05:25:31 EST 1998 | Donnacha
Hi all, Could someone suggest a web site that contains good representations and pictures of SMT solder related defects?? I need to compare these with some pictures I'm using for a project presentation this week. Thanks, D.
Electronics Forum | Fri Sep 13 13:51:38 EDT 2002 | kenbliss
I recently saw an ad in a major trade magazine that stated: �about 60%of all printed circuit board manufacturing defects are due to stencil printing� I would like to hear comments from people that are running SMT lines, is this fact and if it is, w
Electronics Forum | Sun Sep 15 08:35:42 EDT 2002 | davef
That 60+% print defects number has been bantied around for so long in the electronic assembly business for so long that people believe that it's true. One starting point for this myth and lore is: "Where Quality Is Lost On SMT Boards" C Mangin, 'Cir
Electronics Forum | Wed Jul 14 13:50:11 EDT 2010 | swag
I can't offer much advice on acceptible rates or #'s. From a process standpoint, most of your bridging or insufficient originates in your printer. Look into buying dedicated tooling specifically designed for the build. We use "h-towers" on all hig
Electronics Forum | Mon Jun 25 10:35:39 EDT 2001 | rkevin
Despite all my efforts I cannot eliminate icycling on my t/h leads. They come and go.... daily, lots of rework. I have eliminated the following from the scenrio: Inadequate flux to promote quick drainage, Pot temperature too low, Soldering surface
Electronics Forum | Mon Apr 25 11:24:31 EDT 2005 | Daan Terstegge
I have a question about inspection, touch-up, and how far you need to go to get a product that meets the required IPC-spec. According to some reports (i.e. "New Study Reveals Component Defect Levels" by Stig Oresjo of Agilent) the average defect leve
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