Electronics Forum | Fri Sep 20 14:23:50 EDT 2002 | larryk
PizzaFred, Scott mentioned lots of good ideas. Take one of your boards to each vendor and see what it takes to program the board how long it takes for it to become online. I've found some that are easy to program, but require 40 or more assemblies to
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 Nov 02 15:45:04 EDT 2017 | dleeper
For low volume hand assembly, deionized water or IPA should work fine.
Electronics Forum | Fri Nov 03 11:30:29 EDT 2017 | davef
regarding dwl comment, "For low volume hand assembly, deionized water or IPA should work fine." Deionized water: Deionized water is corrosive. It needs to be removed. Proof? Drop a copper coin into a covered jar of DI water and watch what happens ov
Electronics Forum | Tue Jun 06 17:00:36 EDT 2006 | pjc
Be carefull of the effect on other components with a 7mil stencil, like fine-pitch devices will bridge more, excess solder.
Electronics Forum | Mon Dec 01 15:16:58 EST 2003 | davef
So, you need to know how these reductions in solder volume will perform in real life. In-use of the product in the life environment is the surest test. Many companies can�t wait / don�t want to pay for that information. * Some use accelerated life
Electronics Forum | Fri Jul 15 16:50:04 EDT 2005 | davef
Few of us here on SMTnet fabricate our bare boards. Most of us are assemblers. So, the solderability of the connections of our boards is a BIG issue with us. Our suppliers protect the solderability of the copper by coating the copper to limit the
Electronics Forum | Wed Jul 27 09:58:05 EDT 2011 | davef
Pressure printing systems Conventional stencil printing techniques have fundamental limitations as regards paste handling: The volume of paste available for printing is limited, so frequent replenishment is necessary Paste is difficult to c
Electronics Forum | Sun Nov 08 08:58:55 EST 2009 | aliabdul77
Instead of you spend money on AOI,my recomendation will be to install SPI machine ( solder paste inspection machine)since most of your defect are solderability issues.AOI only will ensure no escapee to backend/human escapee but SPI will help to to en
Electronics Forum | Sun Nov 08 09:00:49 EST 2009 | aliabdul77
Instead of you spend money on AOI,my recomendation will be to install SPI machine ( solder paste inspection machine)since most of your defect are solderability issues.AOI only will ensure no escapee to backend/human escapee but SPI will help to to en
