Electronics Forum: 2000 (Page 316 of 505)

alignment of prints

Electronics Forum | Wed Nov 15 10:26:54 EST 2000 | Rkevin

I'm looking for what I call Mylar, for lack of a better name. We used it at Digital/Compaq to help us knead paste and also to check alignment of prints without actually applying any paste to the module. It was about 4-5 mils thick, clear and came in

alignment of prints

Electronics Forum | Wed Nov 15 10:24:23 EST 2000 | Rkevin

I'm looking for what I call Mylar, for lack of a better name. We used it at Digital/Compaq to help us knead paste and also to check alignment of prints without actually applying any paste to the module. It was about 4-5 mils thick, clear and came in

Re: Stencil for 10 mils IC

Electronics Forum | Mon Nov 13 04:57:27 EST 2000 | Wolfgang Busko

Hi Richard, I assume that you deal with a component that has 20mil pitch. In this case depending on your pad design you get from 8 to 10mil spacing for your apertures. With a slight reduction of the aperture (10 to 15% for avoiding shorts)and a 6mil

Misalignment Issue (CAD Vs. Machine Variables

Electronics Forum | Sat Nov 11 03:05:18 EST 2000 | George

I am tasked to breakdown the causes and to report the best reasons why our everytime we download our CAD Data we need to align or adjust our component alignment. Can anyone help me to identify as I do not have enough experience with SMT equipment. Ju

Re: Misalignment Issue (CAD Vs. Machine Variables

Electronics Forum | Tue Nov 14 00:08:24 EST 2000 | George

Hi Jax, The alignment pop up only on some parts and it's random axes. This happens every prototype run that I need to adjust the alignment of some parts. Fiducials are correct and okay. Also had done calibration on our machines. I really suspect that

Re: Misalignment Issue (CAD Vs. Machine Variables

Electronics Forum | Tue Nov 14 03:00:14 EST 2000 | sarry

I have one suggestion why don't you align all parts and take a close look at it if you can find any misaligned component after that. IF SO, that's machine's repeatibility problem.(or mechenical problem-dirty nozzle, wrong pick up and placement height

Re: Misalignment Issue (CAD Vs. Machine Variables

Electronics Forum | Tue Nov 14 14:26:28 EST 2000 | Francois

First groupe of questions: Is your machine have one head with multiple nozzles? Do you have separate vacuum tubes for each nozzle? Do you have problem with the same package or with all pakages. In your PNP machine, what are the dimensions tolerances

Re: Misalignment Issue (CAD Vs. Machine Variables --Done!!!

Electronics Forum | Tue Nov 21 00:38:16 EST 2000 | George

Hi Guys, We found the cause of the problem. It is during the import of the CAD data which on some components the Software give us the Mid X and Mid Y values. We checked from the protel and we found that some of our component coordinates do not much t

CAD Translation Help Needed

Electronics Forum | Fri Nov 10 10:28:36 EST 2000 | Mike McMonagle

Happy Friday To All! Now that the social niceties are out of the way, here�s the problem: We have received a CAD file for a product we are going to build with a .pcb filename extension, that our FujiCam software can�t translate. The computer that or

Re: CAD Translation Help Needed

Electronics Forum | Fri Nov 10 11:05:47 EST 2000 | al Lugo

Hi There are a couple of options that you have: 1) have you tried to open the file using note pad, is it an ascii text format? 2)if it is a ascii file then you can edit the file by just leaving the centroid information. 3)OR call Fuji America at 847.


2000 searches for Companies, Equipment, Machines, Suppliers & Information