Electronics Forum | Wed Mar 14 02:04:40 EST 2001 | pjc
zam, each paste mfg. has different "stencil life" times. check w/ your paste mfg's specification for stencil life. also, temp and humidity inside the printer's chamber effects "stencil life" time. we keep ours around 20C @ 50% RH. higher temps and l
Electronics Forum | Wed Mar 14 17:52:49 EST 2001 | davef
6 Work Life Test 6.1 Obtain a stencil with 15 to 20 rows of a series of 0.025 by 0.050 inch apertures spaced 0.050, 0.040, 0.025, 0.015, 0.010, 0.010, 0.025, 0.040, 0.050 inches apart. See Appendix 1. Source of supply: Metal Etching Technology.
Electronics Forum | Wed Mar 14 09:07:34 EST 2001 | blnorman
We just ran a study to try to determine this. We exposed the paste to 85% humidity to simulate worst case manufacturing. At various times we removed the paste from the chamber and tested it for tack, solder balling, wetting (copper coupon), and vis
Electronics Forum | Fri Feb 17 18:33:08 EST 2006 | mika
Paste In Hole "PIH" or Pin In Paste "PIP" are two different names of the same process. As far as I know this is fairly simple: the reason from the beginning is to avoid an extra process step/steps in the production line. That is to produce through h
Electronics Forum | Fri Nov 18 07:31:19 EST 2005 | avalancher
I'm curious to people's findings. What is the life span / expectancy of your SMT machine? Recently, I heard, through the grapevine, that Fuji listed 5 years as a lifespan for their machines. After that, they would either need to be retired.
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