Electronics Forum: alsos (Page 834 of 1038)

Re: AOI

Electronics Forum | Wed Apr 21 09:35:48 EDT 1999 | Wade Oberle

| | I had someone suggest that they weren't really necessary as long as your process is good. Is this just a way to help you keep an eye on your process? | | | | I was thinking, as we set up our line, our money would be more well spent with control

Re: AOI

Electronics Forum | Thu Apr 22 11:04:58 EDT 1999 | Boca

| | I had someone suggest that they weren't really necessary as long as your process is good. Is this just a way to help you keep an eye on your process? | | | | I was thinking, as we set up our line, our money would be more well spent with control

IPC782 and SMT Plus pattern libraries

Electronics Forum | Thu Apr 08 19:32:52 EDT 1999 | Tom Reilly

FYI, Yes, it is true SMT Plus [ http://www.smtplus.com/ ]does not meet IPC 782 standards but is that the goal here or to meet IPC-A-610 standards for manufacturing? I agree that patterns do cause some problems if created to maximum IPC standards but

Re: Suspect BGAs

Electronics Forum | Tue Mar 16 18:27:34 EST 1999 | Earl Moon

| We are having a small number (~2%) of our boards pass our manufacturing diagnostics, fail once they reach the customer, fail when they get back to us and then start working again after handling them for a short time. We have eliminated a lot of it

Re: FR4 vs Polyamide

Electronics Forum | Mon Feb 15 15:33:47 EST 1999 | Earl Moon

| Any info on the pros and cons of FR4 or Polyamide ref the use of soldering PGAs would be helpful. ie. temp co-efficient diffs, baking, wave soldering, Convection reflow etc | I'm sure you know all the basic differences as Tg, X, Y, and Z expansi

Re: White layer appearance on PCB

Electronics Forum | Thu Jan 28 17:31:20 EST 1999 | Earl Moon

| | | Hello Netters, | | | | | | I need some info, Earl or Dave, I have a PCB that exhibits a white layer on solder side. It does not appear to be surface residues (IPA has no effect), but looks like its under solder mask. My first guess is that t

Re: Z-axis panel movement on full perimeter routing.

Electronics Forum | Tue Jan 05 13:53:35 EST 1999 | Chrys

| Hi All, | I work with CNC Routers . | I use full perimeter routing of double sided populated panels, in a high volume/ mix application environment. We chose stand alone routing machines for our facility . | I'm interested in your input for bette

Re: Simultaneous Double Sided Reflow

Electronics Forum | Tue Dec 29 13:06:36 EST 1998 | Earl Moon

| | | I have been working on this process for a couple of weeks and I know that there are a few other companies in Europe and Japan who are also playing. | | | | | | Is there any one who has been running this process in production ? | | | | | | Yes

Fair enough

Electronics Forum | Tue Dec 29 15:21:25 EST 1998 | Ryan Jennens

| | | | I have been working on this process for a couple of weeks and I know that there are a few other companies in Europe and Japan who are also playing. | | | | | | | | Is there any one who has been running this process in production ? | | | | |

Re: Fair enough

Electronics Forum | Tue Dec 29 15:45:29 EST 1998 | Earl Moon

| | | | | I have been working on this process for a couple of weeks and I know that there are a few other companies in Europe and Japan who are also playing. | | | | | | | | | | Is there any one who has been running this process in production ? | |


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