Electronics Forum | Wed May 17 05:13:22 EDT 2000 | Chris May
You can refer to ANSI/J-STD-001B section 6.4.3.1 which states: "When part stacking is permitted by the assembly drawing(s)/ documentation, parts SHALL not violate minimum electrical spacing between other parts or components such as terminals or othe
Electronics Forum | Mon Apr 10 16:18:56 EDT 2000 | Mark Belec
I need some input to clear up some confusion I have with regards to what standard I should be using for workmanship on the pcb assemblies we produce. Should I be using the IPC 610b or the ANSI-J-STD-001B? What is the norm for the industry or is the
Electronics Forum | Wed Apr 05 22:38:22 EDT 2000 | Dave F
Mike: Claude makes excellent suggestions. I'll add perform more product set-ups to increase the variety of product being assembled to be able to respond to customers better, sell more product, and increase machine loading. So then, you have to ask
Electronics Forum | Thu Apr 20 08:50:58 EDT 2000 | Mike Keogh
Ref.message from Chris McDonald,CORRECTION... VTECH SMT LTD. of Stirling, Scotland are an award winning supplier to major 'Blue Chip' companies and should in no way be confused with V-Tek inc. as intimated in chris's message. To date we have never su
Electronics Forum | Thu Mar 16 07:02:38 EST 2000 | Scott Davies
Does anybody have any experience or knowledge of processing PCB assemblies featuring pyroelectric sensor devices, the type used in Passive Infra-Red Sensor modules? Since these devices are, by definition, very sensitive to heat, how do you get round
Electronics Forum | Fri Mar 10 09:13:22 EST 2000 | Nancy V
Dave, Your response might have been helpful if you would have left off the extra, comical(?), comments. I am American and I still couldn't figure out what you were trying to say sometimes. Searching the web to find an ESD program and training seem
Electronics Forum | Thu Mar 02 14:33:26 EST 2000 | Doug Philbrick
I have a customer wanting to hide the identity of a particular component on a PCB assembly. The product cannot be potted and since the PCB is the product he doesn't want to pour over that one chip for aesthetics reasons. Any ideas on ways to permanen
Electronics Forum | Wed Mar 01 13:06:36 EST 2000 | Graham Naisbitt
$100K for a full in-line. We can do conventional spray at 30 to 50% less but you must mask components you don't want to coat. If they are on 1 end only of the board, then dip coat which is the least expensive option starting at around $12K for up to
Electronics Forum | Tue Feb 29 21:18:00 EST 2000 | Gwen Z
When an assemblied board was on active service, what's the main reason for its failure:the package broken; the mechanics fatigue failure under thermal cycle; the corrosion caused by salt and vapor; the broken chip inside the package etc. I think all
Electronics Forum | Thu Feb 24 18:08:42 EST 2000 | Travis Slaughter
Baking boards, especially multi layer, will help with blowholes and delimitation, but not with solder balls. Normally about 120c for 1 hour or so is sufficient. I usually will not go to this trouble unless a board has proven to be a problem or if th
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