Electronics Forum | Sun Mar 09 18:33:04 EST 2003 | Dean
Tact time is a poor measure of your throughput capability. The Number of boards produced per hour or shift or 24 hour period is the true measure of what you are really doing. Your theoretial "tact time" can be used as a metric to judge performance,
Electronics Forum | Wed Mar 12 09:18:10 EST 2003 | MA/NY DDave
Hi Thanks, Going to APEX to see personal demos and hear what they offer and recommend is a great idea. I mean if you want to put AOI everyplace I am sure you will be supported with open arms. What I found interesting in the article was that large
Electronics Forum | Thu Mar 13 15:13:17 EST 2003 | ruggi
That's a good idea...and to add on to it, you could wash after the wave, too--it really doesn't matter. A question about this though--unless your Customer specifically requires "clean", no-clean flux whether it's ugly or not, is permitted by IPC,
Electronics Forum | Sun Mar 30 21:17:17 EST 2003 | MA/NY DDave
Hi I don't know your PCB, circuit, or product application, and probably should steer you to at least the ESD Association http://www.esda.org/ for one place in case you find anything that you really love. I do know some of these people first hand and
Electronics Forum | Thu Mar 20 14:31:27 EST 2003 | russ
I totally agree with Dave! How long does diplomacy take? Was it the US that had "total diplomatic failure" OR the French who made sure that any deadline date of the 13 yr. old resolution would get vetoed? So, Saddaam needs a break and more time? I
Electronics Forum | Fri Mar 21 10:16:00 EST 2003 | O'Connor
Hi, Is there a standard that covers the shelf life of PCB's? I need to know, how long after manufacture a PCB can be stored in an uncontrolled envoirnment exposed to the atmosphere before being built on, currently we say 1 year, but nobody really kno
Electronics Forum | Mon Mar 24 14:50:05 EST 2003 | jonfox
Look for a local smelting service. They will take your boards (in bulk, we used to send them 300lbs at a time) and then credit you back for the precious metals recovered (gold, silver, platinum, etc...) minus any fees for service. Shipping costs a
Electronics Forum | Mon Mar 31 11:10:43 EST 2003 | davef
First, most �thermal shock� recipes are not a reliability test. There is no relationship between the failures seem in these tests and in-use application. These tests show you the failures in these tests. That�s it!!! Second, accelerated life test
Electronics Forum | Wed Apr 02 09:25:32 EST 2003 | davef
RDR The most common cause of dewetting is from a fabricator using any form of abrasive (e.g. pumice, abrasive brushes etc.) on copper. With this process, abrasive particles get implanted into the copper (often actually swaging copper over some of th
Electronics Forum | Wed Apr 02 14:47:59 EST 2003 | slthomas
Operating Parameters X Direction (left to right) 18.0 inches Y Direction (front to back) 18.0 inches Z Direction (up and down) 1.5 inches Operating Speeds Slew speed and point-to-point is 20 in./sec. Eight increments of speed control from 0.01 in./
