Electronics Forum | Mon Nov 12 16:14:47 EST 2001 | davef
Yes!!! How can we assemble boards with 20 pitch when we allow 0.008� error to the master art? Excellent question!!! IPC-D-300G has nothing to do with assembler requirements. It is written by and for fabricators, so that they can be comfortable.
Electronics Forum | Mon Nov 19 20:10:49 EST 2001 | davef
We print glue with a thick stencil on one product. Although it works �correctly�, we don�t like it because the process flow is goofy. So on a high mix line, it ends-up being a burden. Also, there is no rocket science behind making the stencils for
Electronics Forum | Tue Nov 20 20:56:23 EST 2001 | davef
You�re correct. The release characteristics of epoxy differ from solder paste. Consider: * Using print/flood stroke, on-contact print cycle. * Printing slow enough to fill the hole with adhesive. * Overcoming the thixotropic [The viscosity of thixo
Electronics Forum | Mon Nov 19 20:15:39 EST 2001 | davef
Now, that is one thickass board!!! The rant first: If our �board supplier changed our board surface finish on� anything without our approval, the board supplier would be an �X�. Life has enough surprises. And of all the flat finishes available, h
Electronics Forum | Fri Nov 23 14:47:35 EST 2001 | kgroen
Some comments on the previous post: Be careful when looking at the proportion of SMT defects that are solder defects - you may very well find that only a small few of them originate at the screen printing step. As for specification limits for pas
Electronics Forum | Thu Apr 11 19:12:11 EDT 2002 | djarvis
Sorry fellas -disagree. We only clean our stencils in the ultrasonic machine at the end of the run. If the same pcb is up the next day we clean them by hand. We use Electrolube SSS and the used rolls from the in line under stencil cleaner. Wipe the
Electronics Forum | Tue Dec 11 04:43:35 EST 2001 | maubrey
I am the director of a performance/art group who work with electroacoustic clothing. Esssentially we perform with electronic clothes that make sounds by react with/to the environment. Please take a look mat our web site (complete wi
Electronics Forum | Wed Dec 26 14:19:52 EST 2001 | Stefan
I find that software is a quite individual part of the entire machine. Some programmers love to have at least 20 windows open at one time and others prefer to put all information on one single page. What appears to be easy for one, may be difficult f
Electronics Forum | Thu Jan 17 18:29:01 EST 2002 | Bill Loving
Dear Jason, Thank you for posting your request on SMTNET. Please note that ScanCAD International provides an upgrade path for all installed customers, regardless of the age of their system. Currently, hundreds of systems are installed in 37 countr
Electronics Forum | Thu Jan 17 18:33:24 EST 2002 | Bill Loving
Dear Jason, Thank you for posting your request on SMTNET. Please note that ScanCAD International provides an upgrade path for all installed customers, regardless of the age of their system. Currently, hundreds of systems are installed in 37 countr
