Electronics Forum | Tue May 30 16:02:04 EDT 2006 | slthomas
Do a dirty DoE...print ten boards with the worst error you think you can accept, build them up, and count print related defects. At the same time, print ten spot-on and proceed the same. If you don't have any more defects on the off-print batch show
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 Jun 10 11:21:04 EDT 1998 | Kelly Morris
Does anyone have any info./studies on what the percentage or PPM defect rates are for each part of the typical SMT process. Example: Screen Print = 45% of total defects Component Placement = 25% of total defects
Electronics Forum | Mon Sep 03 06:05:54 EDT 2012 | amitsindwani
Is it a good idea to clean a paste-printed PCB when some printing defect comes and reprinting it ? Or can it be double-printed ?
Electronics Forum | Mon Aug 02 12:28:41 EDT 2010 | tselvan
to prevent solder paste printing defects
Electronics Forum | Fri Mar 25 14:33:26 EDT 2011 | davef
IPC-7525 Stencil Design Guidelines
Electronics Forum | Wed Dec 07 11:56:08 EST 2005 | slthomas
Are you saying you can't send out boards that have been touched up or reworked, or are you saying you can't send out boards with defects on them? 100% is a great goal to shoot for but most people don't expect to achieve it. It all depends on what yo
Electronics Forum | Wed Jun 10 14:48:12 EDT 1998 | Chrys
| | Does anyone have any info./studies on what the percentage or PPM defect rates are for each part of the typical SMT process. | | Example: | | Screen Print = 45% of total defects | | Component Placement = 25% of total defects |
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 | Wed Jun 10 13:24:35 EDT 1998 | Justin Medernach
| Does anyone have any info./studies on what the percentage or PPM defect rates are for each part of the typical SMT process. | Example: | Screen Print = 45% of total defects | Component Placement = 25% of total defects |
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