Electronics Forum | Sat Mar 28 03:26:59 EDT 2009 | gvkirubakaran
Dear sir, We are first time purchased in SMT machine and Through hole machines 1) Please suggest me, i will started the process in first the SMT process or the Axial machine and Radial machine process (THT Line) 2) i want SMT line process proced
Electronics Forum | Sat Mar 28 12:04:24 EDT 2009 | davef
Bound books with concise information on SMT implementation are: * A compilation of "Step By Step" articles from SMT Magazine: http://www.booknews.co.uk/Books/Book4490.html * Setting Up In-House Surface Mount Technology [Books], Schoch, K.F., Jr., El
Electronics Forum | Fri Jan 14 16:48:40 EST 2000 | Steve Thomas
O.K., folks, I know this is a loaded question, but I've been asked to find the answer, sooooo: What is an acceptable defect rate in ppm for a surface mount process, assuming that each component has the potential for one defect. This would include de
Electronics Forum | Tue Jan 18 20:31:10 EST 2000 | WDavidson
It makes a difference what the normalizer is. We calculate solder ppm and placement ppm separately for each assembly. Solder ppm = #solder defects*1E6/(Qty boards*#solder joints per board). For us this number is easily less than 50 and sometimes
Electronics Forum | Sat Jan 15 13:13:33 EST 2000 | Mark Wiegold
Steve, Basically in answer to your question, there is no real set number for defects. Defect rates will vary between products and companies. If my company was running the same product as yourself then there is no reason to suggest that the defect ra
Electronics Forum | Sat Jan 15 16:59:47 EST 2000 | Steve Thomas
Thanks, Mark. Actually we already have an established mark. We use 500ppm (99.95%) as our acceptable level. Problem is, someone (another manufacturer) told someone else (our pres.) that THEY build to 50ppm. Soooooo, someone else told my boss that
Electronics Forum | Mon Jan 17 12:16:02 EST 2000 | Brian W.
My old company (CM) ran SMT to 50ppm including some very complex boards. We established the normalizer number by: #components + #solder joints. As was stated earlier, the ppm for any given product is the result of many factors. You may get differen
Electronics Forum | Wed Apr 19 04:38:49 EDT 2006 | ge_lim
Hi Refering to the Apr edition of SMT , page 24 to 29, anyone got experience on implementing the AOI or 3D x ray : a) What is the pros and cons? b) What is the trend in the PCBA industry for wave soldering inspection? c) Will this implementation co
Electronics Forum | Mon Mar 08 20:39:03 EST 2021 | tey422
For boards that would need the conformal coating process, you would need to have them as clean as possible; especially the no clean process
Electronics Forum | Mon Jan 08 20:33:15 EST 2001 | Kyung Sam Park
Where can I find this kinds of S/W for SMT PROCESS. With defects collected for each smtline Analyze the cause of defect using D/B in smt process automatically(DB means cause of defects in smt process already prepared with for a long period ex
Main Products: 1. Original new and Original Used SMT/AI Spare Parts. 2. SMT Equipments And Related Machine( SMT Calibration, SMT Feeder Carts,Conveyer etc.) 3. Maintenace and Repair Service Pre-Sales Service Provide details ab
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