Electronics Forum | Fri Aug 25 10:27:49 EDT 2000 | Earl Moon
Who are you? Or are you the forth person in the past year who contacted me by email to whom I responded in kind some minutes ago? I'm not back until this mess gets at least a little organized, with some technical substance beyond that which I have s
Electronics Forum | Mon Jun 18 21:31:16 EDT 2001 | davef
I know of no nor can I imagine a specification for "spring pressures or the requirement for pin marks on the test pads". The issue is whether the boards pass the test or not. If your supplier neglected to process the boards as agreed upon, then the
Electronics Forum | Tue Sep 15 19:23:18 EDT 1998 | Jimmy Strain
| I am thinking of purchasing a Panasonic MV series chipshooter. If you own a Panasonic MV machine I would like to hear what you like and dislike about it. Is the service good? Are spare parts readily availiable? Does Panasonic support and follow up
Electronics Forum | Fri Apr 17 14:08:44 EDT 1998 | Earl Moon
| Currently I am in the buisness of soldering bare die to the top surface of a copper heat sink. Is any one else | have some exprience in this process that can help. We heat a copper slug through a contolled atmosphere, place a preform then a bare
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 Apr 28 18:34:17 EDT 2003 | Brian W.
We typically do not try to pick up and hand placve chip resisstors and capacitors. The risk and cost is too high for components that are a penny or less. We take into consideration that on many of our components, someone will have to test them to v
Electronics Forum | Tue Dec 21 11:46:29 EST 2004 | KEN
Are you adding liquid flux? Or paste "Gel" flux? If liquid flux: This, in my mind, is an unacceptable technique. Why? 1. Can not control metals content. 2. Probably not adding the same chemestry flux...as paste flux has many different addi
Electronics Forum | Wed Feb 23 17:24:06 EST 2005 | Austinj
Solder spattering, solder balls, components "popping" off pads........ Not a serious chemical reaction, however, as replied to by KEN on 12/21/04 in a similar article: "Are you adding liquid flux? Or paste "Gel" flux? If liquid flux: This, in my m
Electronics Forum | Mon Aug 24 16:58:05 EDT 2009 | rgduval
Jack, Well, there's always doing it locally on the machine. There's also an old excel macro floating around that will help...it takes the x,y,theta information, and generates a pick and place program. However, we never had much luck with it here
Electronics Forum | Mon Aug 23 11:27:00 EDT 1999 | Dave F
0.6 �m (25 micro inches) and self-limit around 5 mils depending on the material being plated and the process. Similarly with white tin, laminates with cleaned copper are immersed in a series of tin baths without an external source of electric curren
