Electronics Forum: adn (Page 1 of 1)

What is to much Void?

Electronics Forum | Mon Dec 13 14:41:41 EST 2004 | DasonC

Check IPC-7095, 7.4.1.6 For Class 2, 45% of the diameter adn 20.25% for the area.

Masking of connectors

Electronics Forum | Thu Sep 16 09:07:20 EDT 1999 | Chris McDonald

We have a new custumer that needs thier thru-hole/smt boards conformally coated. We currently do not have a selective spraycoating system adn this low volume of these board do notwarrant a 100k machine. We are spending way to much time masking and un

Solder Saver ??

Electronics Forum | Tue Apr 25 10:18:46 EDT 2006 | evsint

I would challenge that comment NAME ONE You are correct regarding the old Earth-Tronics SRS machines But EVS is a new company and the new models the EVS 3000 adn EVS 6000 have been totally redesisgned and all who have used the old machines and n

BGA solder bridge - Adding Pictures

Electronics Forum | Fri Mar 04 01:08:19 EST 2011 | kemasta

Thanks davef Bridging:- There is no heat sink on the BGA, the heat sink will be fix after relow. I do believe paste had something to do with it, but currently this defect didn't appear so oftenly, so we think that the main root cause is not from the

Re: Masking of connectors

Electronics Forum | Thu Sep 16 20:45:51 EDT 1999 | Dave F

We have a new custumer that needs thier thru-hole/smt boards conformally coated. We currently do not have a selective spraycoating system adn this low volume of these board do notwarrant a 100k machine. We are spending way to much time masking and

Re: adhesive printing

Electronics Forum | Tue Oct 31 03:50:20 EST 2000 | JohnW

Honda, Prnting Glueisn't as difficult as it sounds, as long as you have the right stuff and a good set up. It also depend's on what your going to be placing. If your just doing 0603, 0805 and 1208 than you really only need an 8 thou or 10 thou stenc

Re: Measuring Board Deflection

Electronics Forum | Thu Jul 13 04:01:02 EDT 2000 | JohnW

Dave, Firstly..how the heck are you?..been a while.... Ok so I'm running an Electrovert Electra witha hot gas knife, & I've got large server boards going over the wave. I've seen us loose chip, mainly Tants on the hot gas knife...ain't good especia

Long Soak Times for BGA soldering?

Electronics Forum | Mon Jul 05 03:53:36 EDT 2004 | johnwnz

Hey, this is something that I've looked at and published a paper on back in 2003 at Apex, actually pert of one, the other part was lookign at how effective X-ray systems (lamanography systems) were at detecting & measuring BGA void size accuratly (co

Re: Popcorn @ reflow

Electronics Forum | Thu May 20 15:07:12 EDT 1999 | JohnW

Earl, your colourful impressive descrptions are a joy to read..well lighten's up my day but maybe it's just me...ummmm..? anyhoo, Omat, as Earl has said ..this is a moisture sensative problem basically the reason you blow the shit out of the compon

Re: Popcorn @ reflow

Electronics Forum | Sat May 22 19:38:59 EDT 1999 | Omat Marasigan

Earl, your colourful impressive descrptions are a joy to read..well lighten's up my day but maybe it's just me...ummmm..? anyhoo, Omat, as Earl has said ..this is a moisture sensative problem basically the reason you blow the shit out of

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