Electronics Forum: mylar problems (Page 1 of 1)

Fuji CP642 Feeder Problems

Electronics Forum | Mon Nov 24 17:27:39 EST 2003 | rrr

typically when i've seen this problem it is because the back of the mylar is sticky. Have you tried different parts?

Board Stretch...Is there a relevant IPC spec?

Electronics Forum | Thu Aug 23 15:38:58 EDT 2001 | mparker

Bingo - the mylar is the problem. Ask the fab vendor what storage and humidity controls they use on the photo tools. The films can changed geometry from day to day depending on the ambient environment. What controls are used during production? The ra

Board Stretch...Is there a relevant IPC spec?

Electronics Forum | Thu Aug 23 12:46:30 EDT 2001 | mkallen

In this case, I know my supplier's data is good. They've been supplying this particular PN for a long time now, and the stretch problem appears to be random within a given date code (i.e., most of the boards in each lot are good, but a few exhibit t

Component attrition

Electronics Forum | Mon Dec 23 18:06:38 EST 2002 | jersbo

Tried and True is counting your components if there is any indication of loss... this is a great TOPIC... unfortunately there are many ways to lose components. Feeder setup,problems with a feeder while in the machine(IE mylar problems or wrong step)

CP-743 tape problem

Electronics Forum | Tue Mar 17 12:51:01 EDT 2015 | cyber_wolf

Are you referring to the mylar cover tape ?

Fuji CP-6 Feeder Maintenance Programs

Electronics Forum | Mon Oct 22 10:35:54 EDT 2007 | mulder0990

We use Microsoft Access to track our feeders. I have made a system for the machine operators to tag the feeders when they run into problems. We seem to be having a lot of pitch issues. I am wokring on geting a calibration jig to solve that issue.

PCB Expansion (Y & X-axis)

Electronics Forum | Mon Sep 26 14:09:08 EDT 2005 | slthomas

"Note: nothing changed to the process, the problem come out of sudden." Did this happen with a batch of boards you'd been running a while, or was it a new batch (lot/date code)of boards? I'd be inclined to suggest that the environment that your my

Re: gerber data vs bare board

Electronics Forum | Mon Sep 13 04:11:27 EDT 1999 | Earl Moon

| | hello | | | | having a problem with one customers bare boards not matching my stencil apertures. i design stencils based on gerber data and reduce up to 15% on some pads. do some board houses reduce pads after receiving gerber data???why would

Re: Conductive Epoxy

Electronics Forum | Thu Dec 03 13:24:12 EST 1998 | Russ M

| | | Does anyone have any information or experience with the use of conductive epoxy in leu of solder. I have a unique application that might lend itself to this technology. I am looking for manufacturers, printing, curing and reliability info. | |

Re: Conductive Epoxy

Electronics Forum | Fri Dec 04 13:25:34 EST 1998 | Jeff Sanchez

| | | | Does anyone have any information or experience with the use of conductive epoxy in leu of solder. I have a unique application that might lend itself to this technology. I am looking for manufacturers, printing, curing and reliability info. |

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