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 | Wed Nov 28 20:14:50 EST 2001 | ianchan
Hi, i'd second that choice of enineering degree in electronics as monkey says, coz of variable options open to you IF you decide to rotate in your field of applicable enggr interests... IT courses are abundant in today's "open Uni" learning "econom
Electronics Forum | Mon Nov 26 14:49:20 EST 2001 | mparker
1. The formula for cubic area (LxWxH) applies to get the expected volume target value. Caution- do not assume the pad surface square are is correct for the part. Do consider the footprint of the device beign placed and its solder requirements to cre
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 Jan 09 12:20:00 EST 2002 | mregalia
Thanks for cluing me into IPC-2221. Though the numbers they give seem to contradict what I have learned from people working with the materials. At least I now know where the guideline for a max of 30 microinches of gold for soldering comes from. But
Electronics Forum | Wed Jan 16 20:08:48 EST 2002 | davef
Comments are: * Some people use calibrated boards and components to remove sources of variation when using their CMM to measure placement accuracy. Sources of supply are listed in the fine SMTnet Archives. * It�s unclear that a single board will mee
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
Electronics Forum | Thu Feb 07 20:53:51 EST 2002 | davef
Regardless of the technique used for the mounting pad shape or definition, isolation of the plated through hole [PTH] from the mounting pad is important. If the PTH is contained within the mounting pad, solder will wick down the PTH. The amount of
Electronics Forum | Wed Mar 06 17:15:06 EST 2002 | djarvis
Hmmmm, very good point. I never thought about it much as such dedicated tools were not available when I first kicked off. I'd look at the reflow under a microscope and if I could identify any problems, I'd start to look at the print using the same
