Electronics Forum: pass (Page 6 of 142)

First Pass Yields

Electronics Forum | Thu Nov 09 16:38:26 EST 2006 | Julie

Our SQE's want to benchmark the first pass yield requirements that we place on our CM's - currently they are at 95% - does this seem reasonable?

First Pass Yields

Electronics Forum | Thu Nov 09 17:54:54 EST 2006 | russ

I would trust that you are benchmarking some design rules as well? Yield is directly related to design as well as process capability. anyway 95% is not a bad first pass yield at all, and I would tend to think that that is a little high when dealing

First Pass Yield

Electronics Forum | Thu Nov 13 12:08:50 EST 2008 | cisridn

I define First Pass yield without any repairs. But I only consider a PCB to need repair if it fails test. Our boards are inspected before testing and any work done before testing, I consider to be rework and is part of the SMT process.

BGA failure after coating

Electronics Forum | Wed Sep 30 08:21:07 EDT 2009 | cunningham

Hi We have a board at the moment thats passing ICT and passing functional test but its failing test after conformal coating has anyone had any experinces of this? or any idea what may be causing this?

Help: Low Smoke PCB Material Advice

Electronics Forum | Thu Oct 29 16:27:37 EDT 2009 | bhartman

Does anyone have experience with the smoke release properties of PCB laminates? I need to pass UL 2043 and I know FR4 does not pass. I also need to be ROHS and otherwise UL listed/recognized material. Thanks.

FIRST PASS YIELD vs DPMO?

Electronics Forum | Thu Aug 19 14:54:44 EDT 2010 | jamyboy

Has anyone out there successfully switched from First Pass Yield to DPMO metrics and most importantly, sold MGMT on the change?

Multiple reflows

Electronics Forum | Thu Jan 31 13:02:01 EST 2013 | dontfeedphils

Are you talking about double sided reflow or just multiple passes for one side? If you're running multiple passes for one side, why?

PLCC's on IP3

Electronics Forum | Thu Apr 22 01:47:28 EDT 1999 | Larry Johnson

Recently, we have been having problems with PLCC's passing vision on our IP's If the part is set up to be placed on Head 2, it will not always pass vision. However, if we move it over to Head 1, it will pass and place just fine. Now, I do realize

Re: PLCC's on IP3

Electronics Forum | Wed Apr 28 00:58:22 EDT 1999 | Will B. Caught

Recently, we have been having problems with PLCC's passing vision on our IP's If the part is set up to be placed on Head 2, it will not always pass vision. However, if we move it over to Head 1, it will pass and place just fine. Now, I do realiz

Wavesoldering Defect

Electronics Forum | Tue Sep 14 03:14:52 EDT 2004 | Adam

Hi Has anyone see a defect,where after one pass over the wave, pins on conectors seem to have a tenancy to have a mimimum solder fillet on the bottom-side of the board. There seems to be no trend, It could range from half a dozen to two dozen from b


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