Electronics Forum: board (Page 351 of 1565)

Surface Tension vs Part Mass

Electronics Forum | Tue Sep 12 22:34:33 EDT 2006 | davef

Bob: Did you know that soldering equipment suppliers make these things that they call 'rework equipment'? This equipment employ these wacky pieces of metal, sized to each particular component, called 'nozzles'. Manufacturing companies use this rewo

Looking For SMT Screen Printer to handle large boards

Electronics Forum | Thu Sep 14 09:29:08 EDT 2006 | Steve Pollo0ck

James, is the board 24" long or print area. Essemtec offers a printer the SP900 with a 23.93" x 21.25" print area. http://www.essemtec.com/e/147.php here is the link to our website with a video. It is sold and supported in the US by Essemtec USA. it

0.4mm PCB Thickness - production issues

Electronics Forum | Fri Sep 22 17:36:35 EDT 2006 | mika

A bunch of thanks guys, we will take this in consideration. BTW, we will not go for the v-grove in the panel (2x8 boards + the extra cut of areas). The board house recommended us to go for braces/hinges, since this thin pcb-panel could easily break w

Cycle Times

Electronics Forum | Mon Sep 25 14:57:53 EDT 2006 | jdengler

John, Your calculation looks fine. If that's all you were looking for your done. If you really want to produce more boards per day we would need more info. Size of board, can it be panelized or larger panel. Your line configuration and what mac

Contaminants after SMT which affect wire bonding

Electronics Forum | Fri Oct 06 04:23:06 EDT 2006 | David

What is the solder finish of the board?. If this is gold, maybe you should check the reflow profile and max temperature which can easely kill your gold coating so problems with bonding. Also we are using Prozone Multicore with ultrasonic to clean

Through hole reliablility lead free

Electronics Forum | Thu Oct 12 09:22:12 EDT 2006 | charless

Hi We are experiencing different failure modes between leaded and lead free through hole assemblies. The boards are PTH. In the case of lead free boards we are seeing fracturing of the component legs much earlier than we do with leaded assemblies. N

Through hole reliablility lead free

Electronics Forum | Mon Oct 16 15:46:24 EDT 2006 | slthomas

The wording in your second post re: lead vs. lead free behavior seems to contradict your first post, but I'll assume you mean that the lead free boards fail sooner during vib. testing. My question is, if this is the case, are the parts that are fai

RoHS Board Delamination

Electronics Forum | Mon Apr 02 18:31:13 EDT 2007 | SWAG

I hate to drag this one out again but we are done with this. We tried an oven profile on the bare panels that was quite different from our original. This profile was recommended by the mfg. of the laminate. We experienced random delamination. Som

High TG?

Electronics Forum | Mon Nov 13 09:22:10 EST 2006 | aj

Hi all, Should we need to order the Higher TG to run boards safely thru a RoHS Process (reflow only)? We had an issue with the previous batch delaminating and were advised by supplier that we should have stated the higher TG rating even though the p

Flux residue cause high false reject at ICT

Electronics Forum | Fri Dec 08 08:25:03 EST 2006 | jhaviland

Depending on the system you can program in a loop where if the board fails a contact to cycle the vacuum once or twice. it wears on the pins a little faster since you cycle 2 times (maybe more) per board but it could help increase the FPY. I know Gen


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