Electronics Forum: pass (Page 47 of 142)

Using an air hose to clean stencils

Electronics Forum | Fri Nov 05 13:58:23 EDT 2010 | chartrain

I agree that the tines (webs between apertures) can become damaged on fine pitch stencils from a blast of air. If they get bent, the stencil won't seat and gasket properly allowing bleed out of paste. Of course we all know that the air being blasted

5 zone oven profile

Electronics Forum | Tue Apr 05 16:29:18 EDT 2011 | gaz

We are not having any real issues. I am just first setting up a lead free profile, and was looking for a starting place. So far it's going well. Can you tell me more about why your paste would be better and I'll pass that on to the decision makers?

Cleaning

Electronics Forum | Wed Aug 31 14:45:35 EDT 2011 | ryanr

Non-Hermetically sealed parts are parts are not air tight and gasses and liquids will pass into the package of the part and come in contact with the electrical or other components within the package (i.e. some switches, relays, transformers, etc.) D

Universal conveyor help

Electronics Forum | Thu Sep 29 10:34:46 EDT 2011 | leemeyer

I recently bought a used Universal conveyor #5362I. All I need it to do is pass through boards from 1 machine to the next without operator intervention. The only way I can get it to accept a board from the upstream machine is by pushing the yellow bu

Quad IVc Fiducial Alignment

Electronics Forum | Mon Jan 21 08:36:23 EST 2013 | bobpan

The global or image fiducials is set under teach fiducials screen. You will get the option to turn on the one you want. You should choose one or the other depending on what you are building. You are correct for what tep hold,pass and tep vision does.

Damaged PCB.. what do you think?

Electronics Forum | Thu Mar 15 17:38:46 EDT 2012 | jorge_quijano

Hello guys, I need your thoughts on this PCB I have, it seems that It was damaged by hit or something, I think there is no big issue because damage is on the corners, but I'm not pretty sure if It could has some other hidden damages, It has few SMDs

PCB Delamination

Electronics Forum | Fri Jun 01 16:13:45 EDT 2012 | kahrpr

You also need to get with the PCB manufacturer. Their is a lot that can go wrong with that many layers. If the manufacture is trapping that much moisture. you may have a hard time baking it out. Dave and Graham are right about the time and energy. It

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Sat Nov 03 11:08:24 EDT 2012 | anvil1021

We have experience with this alloy, but with enig and we did start with PB HASL, none of our PCBs would of course pass thermal cycling at normal temperatures with the HASL so we went to ENIG. we could thermal cycle at 100-115C with no issues. We foun

Mydata Hydra tool reference mark error

Electronics Forum | Sat May 04 14:36:53 EDT 2013 | dontfeedphils

It's been a while since I've used a MyData but I believe what happens is on the bottom of the hydra black metal piece is a mark that the vision system uses to locate the tools as they pass over to center the parts. Something may have happened to this

TO-220 Chip Package - Bridges

Electronics Forum | Wed Jun 12 17:05:41 EDT 2013 | danselness

DeanM - thank you for your response. I will work on uploading a picture of the bridges. We are focusing our efforts on nine boards that use the TO-220 package. I will also pass along your idea of Oval Pads to our Manufacturing and Design Engineers


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