Electronics Forum | Thu Jun 14 15:29:29 EDT 2012 | davef
That you can get good solder flow when hand soldering seems to indicate that the temperature of your solder pot is too low. Still, I'm uneasy that you see gold on the pads after passing the board across the solder pot. Gold is so thin with ENIG. So
Electronics Forum | Sat Apr 11 14:31:16 EDT 1998 | Gary Simbulan
| | I would like to invite everyone to share/discuss | | information/knowledge/experience they have with | | the req's that are assumed to be valid for the | | temperature/time relation in the process of reflow | | soldering Pin In Paste, Intrusive R
Electronics Forum | Thu May 03 17:34:57 EDT 2001 | oscar mendez
Does any one experienced problems on BGA voids related to height of chip (placement), and also another question, Does any one has some statistical process control for the BGA soldering process? if the answer is yes, I'd like to have advice from you.
Electronics Forum | Sun Mar 25 02:13:11 EDT 2018 | alexeis
Hi, Our solution isn't opensource. We are developing and customizing it for each machine output. Also, our solution are checking for new information and importing it automatically in the background process. If you want more information, you can se
Electronics Forum | Wed Jan 31 20:11:32 EST 2001 | davef
"Statistical Process Control for Surface Mount Technology" (0967503396) William S. Messina, Ph.D., President, Data Sleuths, 8311 Via de Ventura #2075 Scottsdale, AZ 85258: 602-321-0549 Fax: 480-348-9636 datasleuth@yahoo.com
Electronics Forum | Tue Jun 24 11:51:24 EDT 2008 | paul_bmc
Who performs SPC (Statistical Process Control) in your surface mount or through hole department? The machine operator, an inspector, or a seperate SPC inspector?
Electronics Forum | Mon Aug 19 20:44:01 EDT 2002 | davef
George: There is no industry standard for the calculation of process capability. Although, you should be aware of IPC-9850, Surface Mount Placement Equipment Characterization Actually, there is a grand bulk of discussion on process capability in t
Electronics Forum | Wed Dec 13 20:46:46 EST 2000 | Dave F
I�ll bite ... Why can�t you calculate LSL/USL values from your control charts? We find that LSL/USL values generally are unknown. If you are seeking a text on statistical analysis consider: "Statistical Process Control for Surface Mount Technology"
Electronics Forum | Tue Jan 27 03:06:35 EST 1998 | Vanessa Munoz
I am just implementing a Statistical Process Control to the SMD. A few simple questions: 1. Is it necessary to perform a sampling plan for suppliers inspection? 2. What are the basical points to control ourself and inspection at a supplier? I mean th
Electronics Forum | Wed Feb 08 12:23:12 EST 2006 | slthomas
Just to nitpick a little, collecting defect data and reacting to it really isn't an SPC function. Cal's recommendations (determine critical processes, assess process capability and acceptable limits) are spot on and are pretty much the definition of
