Electronics Forum | Fri Sep 25 16:38:56 EDT 2009 | esoderberg
empf issued an excellent study of calculated solder volume in the 90's. It used lotus 123 but is easily used in excel. I have used it for over 10 years. The only thing wrong is with leadless components. the amount of paste required generally is insuf
Electronics Forum | Thu Jun 15 14:14:18 EDT 2017 | pfuhrman
I have seen a few references in this forum to an old study (1980s?) by Roger Wild at IBM. But I cannot find a published report or usable reference to one. davef mentioned the SMTnet archives as a possible source, but that has also been a dead end.
Electronics Forum | Thu Mar 22 17:38:44 EST 2001 | davef
OK, lemme take a different angle on this, �cuz I forgot to touch on this when I first responded. I mentioned a study ["Evaluation of Low Residue Soldering for Military and Commercial Applications: A Report from the Low-Residue Soldering Task Force"
Electronics Forum | Sat Oct 18 08:17:40 EDT 2008 | hussman
Use a Cpk study on your screen printer. Deviation from print to print. Most reutable surface mount machine companies will supply you with their Cpp study they performed on your machine before they shipped it. On ovens use your profiler. You can
Electronics Forum | Thu Jun 14 23:34:43 EDT 2001 | uk boy
I studied in the UK, so I am not sure about the US educational system. My mate studied at the Illinois Institute of Technology and he is a much smarter than me so I guess you Yanks are doing something right! ;-) I agree mostly with davef. Theory
Electronics Forum | Wed Aug 18 21:24:55 EDT 1999 | Dave F
| CEERIS has been sending me flyers for some time, touting the value of their various studies and insights gained from digesting the facts contained within. The topics are indeed of great interest. My question is to whomever of you has purchased one
Electronics Forum | Wed Aug 12 13:38:52 EDT 1998 | Dave F
| | I am trying to get an idea of what system seems to work best for solder paste inspection. I am looking for basic table top models with he capabilites of height and width measurements. Can anyone give me suggestions, pricing and why you prefer
Electronics Forum | Wed Jul 22 20:33:02 EDT 1998 | Dave F
| hi....i am new at this technology and would like to know more about smt... | presently iam studying in an engineering field and one of the subject required me to make a studies about smt technologies...if anyone out there know where i might find a
Electronics Forum | Mon Jul 20 10:38:18 EDT 1998 | John
| hi....i am new at this technology and would like to know more about smt... | presently iam studying in an engineering field and one of the subject required me to make a studies about smt technologies...if anyone out there know where i might find a
Electronics Forum | Thu Jul 18 15:20:17 EDT 2002 | dragonslayr
I suggest following the standards developed by IPC for DPMO (go to IPC. org for more info) Create your own benchmark, within your own environment, for the specific PCA, then do trend analysis, 6 sigma improvements, etc. For a rule of thumb benchmark
