Electronics Forum: forum (Page 1576 of 7929)

CAD viewers, API

Electronics Forum | Thu Oct 04 19:35:41 EDT 2001 | KBerry

You could try an off the shelf solution such as Tecnomatix-Unicam's Quality System. I believe they allready offer this functionality plus many other features that you may find interesting. KB

Open joints

Electronics Forum | Wed Oct 03 17:52:37 EDT 2001 | mparker

I hate it when that happens. Usually I just buy a better brand of papers. Zig Zag works best. Of course, you gotta remove the stems and seeds, those are the most recurring sources that cause an open joint.

Open joints

Electronics Forum | Wed Oct 03 21:28:38 EDT 2001 | davef

A firm grasp on the sublime. Mike points-out a good reason to describe Claude's problem as "open connections" or "open solder connections"? [Ahhh geez, wut a spoil spurt]

Open joints

Electronics Forum | Thu Oct 04 12:48:09 EDT 2001 | vance

Overwetting is also a root cause of open joints. I recommend eating 5 saltines in 1 minute for anyone experiencing overwetting.

BGA's shorting

Electronics Forum | Thu Oct 04 13:04:52 EDT 2001 | Hussman

Without seeing your X-ray, it sounds like your BGAs are out gassing. This casues the situation you described. Try baking some BGAs and run them along with ones not baked to see.

Via tent on both side of the PCB; Immersion Tin

Electronics Forum | Fri Oct 05 07:31:29 EDT 2001 | furrer

When tenting vias almost a few vias are not covered completly by Solder Mask. Does this one side open vias affect the Immersion Tin Process ? Do we get chemical residues in the vias ?

cem3

Electronics Forum | Fri Oct 05 09:15:23 EDT 2001 | Ben Bierlein

It is a PCB material that has a woven glass / epoxy internal core and glass veil surface. It is in between the paper materials (FR1,FR2 and CEM1) and FR-4 as far as strength and cost. It is available in HiCTI material for high power applications.

black and grey pad

Electronics Forum | Sat Oct 06 08:42:21 EDT 2001 | davef

Please give us additional background on your board, solder, process, etc. If you are talking about black pad in ENIG solderability preservative, check the fine SMTnet archives to get started.

Boot Camp

Electronics Forum | Sun Oct 07 07:58:32 EDT 2001 | davef

Consider searching the fine SMTnet Archives for the names of companies that offer such training courses and giving them a call to determine their schedules.

reversing Heller conveyor travel

Electronics Forum | Mon Oct 08 10:35:55 EDT 2001 | davef

Heller Industries, 4 Vreeland Rd, Florham Park, NJ 07932 973.377.6800fax3862 Dave Jenkins [sales] Marc Peo [VP Sales] Marc is a SMTnet contributor


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