Electronics Forum: second (Page 151 of 241)

cap size and copper thickness vs part size questions

Electronics Forum | Mon Nov 07 16:31:47 EST 2005 | CW

hi Bob, Thanks for the info. I understand your comments, but I am looking for specific guidance, If I am putting chip capacitors on a .063 FR4 board, what size package should we stay away from to avoid cracking? (I realize this is dependent on h

Need Help for EMI Shielding process

Electronics Forum | Fri Nov 11 09:38:41 EST 2005 | Rob

Hi, There are 2 main steps to reducing EMI from a product. The first is to minimise it at source with smart design (keeping signal traces short, lots of decoupling etc). There should be design guides available from internet seach engines. Many ma

Comet Philips machine error

Electronics Forum | Fri Nov 18 02:42:46 EST 2005 | vinitverma

Greg, I recently faced this problem at a customer though the machine was Topaz X but the problem was same. So I suggest you first check if the GOOD LED is ON on the Servo card down in the MCX box. Also check the same GOOD LED on the System board in

Solder wetting issues

Electronics Forum | Wed Dec 07 14:55:14 EST 2005 | Samir Nagaheenanajar

Here in Rihad, I am in the midst of Pb-Free implementation, and most of our paste manufacturers have advised that with the higher peak temperatures, you need to retain the activators as long as possible. I have changed our profiles to a more gradual

Samsung SM320 VS Assembleon 8 head Opal XII

Electronics Forum | Wed Dec 21 11:13:28 EST 2005 | rlackey

Hi Rick, That is one theory and although valid is probably not something I'd go with. There are 2 ways of going for a new market - a) Carpet bomb it, by throwing huge resources into it and hoping to catch everything. b) Starting in one area/stat

Does Anyone own a Contact 3Z??

Electronics Forum | Fri Jan 06 16:14:10 EST 2006 | trynders

Have had a lot of issues with our machine and was just curious if anyone else out there was having any problems with theirs. This is actully our second 3Z. Our first one had so many problems Contact took it back and replaced it with a newer one. Abou

Reflow profile verification ??!!!

Electronics Forum | Fri Jan 13 16:00:07 EST 2006 | DannyJ

Sr. Tech, First, thank you for the great laugh! Second, I always go for that 'deer caught in headlights look' that they get when you start asking your questions. As a caveat, I have learned to slow down when they start drooling out of one side of

MS2 molten solder surfactant

Electronics Forum | Wed Mar 15 15:04:51 EST 2006 | Fliyer32

I tried MS2 for almost two weeks and I can see it works. MS2 is more a preventive tool rather than a solution to convert pour on top of the dross. Very important if you use this stuff is that you do the encapsulation of the wave, the bigger the surfa

Necessity of ROSE in commercial quality processes

Electronics Forum | Tue Feb 28 14:32:26 EST 2006 | masrimhd

As I know, the encapsulation effect occurs only with rosin based fluxes. So if you have a PBA soldered using RA Flux, you should either wash it well, or leave it alone and it will be safe. For NC process the story is different because there�s no re

type of machine

Electronics Forum | Thu Mar 09 00:45:57 EST 2006 | kent_peterson

Fastek will get it done with 2 machine and 2 shifts. 2 shifts would need to place 50,000cph. One CP643 with both device tables set could get it done. Having it panelized in 50's, you would need to print 50 panels a hour so get a auto cleaner on the p


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