Electronics Forum: acceptable scrap rate (Page 1 of 18)

smt scrap reduction

Electronics Forum | Wed Jun 15 16:54:33 EDT 2005 | linny999

Siemens is an excellent platform. To reduce your scrap:- Carry out the specified maintenance, especially the segments and valve plungers; Calibrate revolver heads to benchmark. Remove the tables, smooth the magnetic strips, clean the mounting faces,

Where to recycle scrap from board depanelization?

Electronics Forum | Fri Aug 20 15:01:19 EDT 2010 | davef

Companies accept boards for recycling based on their expectation of making money by recovering the metal from the boards. Do your side rails contain metal?

smt fall-out -- acceptable rates

Electronics Forum | Wed Jul 14 13:41:40 EDT 2010 | rway

We are running SMT products and have been for some time now. First, I wanted to check with you folks to see what an acceptable FPY rate, or what you would consider and acceptable rate, is. Secondly, we are having issues primarily with product that

smt fall-out -- acceptable rates

Electronics Forum | Wed Jul 14 15:36:34 EDT 2010 | remullis

98% to 99% pass yield should be your target. The previous company I worked for, we were able to meet these goals with most all of our products. It took us some years to achieve this level of pass rate. Of course analyzing and good reporting from some

smt fall-out -- acceptable rates

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

smt fall-out -- acceptable rates

Electronics Forum | Wed Jul 14 18:51:24 EDT 2010 | rway

Thank you. I spoke with our SMT guy, and he stated that there is plenty of board support on the pcb. So it's not a matter of flexing. There just seems to be inconsistancy in the solder application. He did mention that part of the problem is a lac

Pick failure rate

Electronics Forum | Mon Sep 16 09:47:33 EDT 2013 | dilogic

I would appreciate if you can share your experience with pick failure rates, preferably for 0402 parts. Also, what percentage do you consider acceptable?

What is the acceptable component throwout/attrition rate?

Electronics Forum | Wed Nov 29 00:16:34 EST 2006 | mack3000

Hello everyone, May i know what is the acceptable component throwout rate/percentage for a smt machine(chip shooter and chip placer)in the industry today?

What is the acceptable component throwout/attrition rate?

Electronics Forum | Wed Nov 29 22:09:57 EST 2006 | davef

attrition

Re: acceptable defect rates for smt process, in ppm.

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

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