Electronics Forum | Wed Jan 12 09:30:33 EST 2000 | Jim Schultz
I need your help. I have been battleing tombstoned 0603 resistors for many months now. I have been working on the profile, the placement accuracy of the chipshooter, and the print accuracy. I am writing in the hopes that someone out there has some
Electronics Forum | Mon Jan 10 12:00:06 EST 2000 | Dave F
First, I agree with Wolfgang, in response to Wister. Second, Wolfgang: Sometimes, our blanket purchase order for paste schedules delivery of the paste in advance of production requirements. (What!!!???? In-bound material schedules don't match out-
Electronics Forum | Wed Jan 05 10:23:21 EST 2000 | g cronin
i am planning on implementing a new bga assembly and would like to have an x-ray system on hand during this process. I know that Glenbrook rents x-ray systems but the price is more per month than i would cost me to send out each PCB individually. D
Electronics Forum | Thu Jan 06 17:50:08 EST 2000 | Jeff Ferry
Greg, Check out Circuit Technology Center in Haverhill MA. We have 3 Air Vac BGA Rework systems and 1 Nicolet X-ray system. We offer either\or BGA rework services and X-Ray services. You can get a little more info at http://www.circuitnet.com/cat
Electronics Forum | Thu Dec 30 12:17:19 EST 1999 | JAX
Marlies, The terms are one in the same but are used according to how you descibe the situation; i.e. centering refers to adjusting the part where as aligning normally deals with adjusting the vision. NOT THAT THIS IS A RULE. ( different strokes...
Electronics Forum | Thu Dec 23 15:10:50 EST 1999 | Victor Salazar
What we did was design or panels with routed out edges held on by tabs. This was very effective. All we use is a pair of pneumatic scissors to cut off the tabs. We are using from single-to 13 layer PCB's and we have had no problems with delamination
Electronics Forum | Mon Dec 13 15:56:16 EST 1999 | David Spilker
In our DFM guidelines for PWB layout we have discouraged placing BGAs in the longitudinal center of a PWB. We believed the increase stress through reflow and wave was not good for BGAs - probably read it or reasoned it. Now, this position is being
Electronics Forum | Wed Dec 08 14:29:21 EST 1999 | Jeff Sanchez
Thanks LD! I'll Take that to the shop. I've been burnt by "violet" one to many times. Not to say that any of us are willing to use violet in a descriptive sence. I can't believe she is still out there. "Big Venture" much better! Did you get that off
Electronics Forum | Mon Dec 13 00:05:28 EST 1999 | Dennis O'Donnell
I can't figure out why everyone is plating everything with gold. According to the J Standard, gold plating should be removed before soldering to the surface. The gold, when left on the surface to be soldered will contaminate the solder joint and ca
Electronics Forum | Fri Dec 03 12:45:28 EST 1999 | Bill
I'd like to print out a forum item to fax to a friend who does not have internet access or email yet at his new facility, but no matter what I do to my printer set-up I cannot get the full page width to print. The right side of the message keeps gett
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