Electronics Forum: what causes edge nicks when routing (Page 1 of 8)

cracks between electrical conductive adhesive and round the edge of the Chip-leds

Electronics Forum | Tue Aug 15 07:02:13 EDT 2000 | George Verboven

We are assembling SMD-Leds (Chip LED cl-220yg-c-ts)on flex foil with Electrical conductive glue (Matthey A1401). When we investigated these foils we found cracks between the conductive adhesive and round the edge of the Chip-leds. This cracks cause f

Mydata TP9 UFP problems

Electronics Forum | Wed Jun 22 08:19:05 EDT 2005 | cyber_wolf

Our TP9 UFP machine keeps nicking the edges of A12 tool tips. I think it is because the X axis is bouncing when it comes to the component pick position. When the X bounces it is causing the tool to hit the tape hold down arm. Has anyone ever encount

Re: PCB panellisation

Electronics Forum | Wed Apr 08 08:34:23 EDT 1998 | Scott Cook

| | I agree with Michael, scoring works great. interesting feedback. | The change to scoring has saved countless hours of trimming tabs, and is much easier on the wrist. As mine in scoring, your experience in a routed, drilled web tab breakaway is

Trace Distance to Board Edge

Electronics Forum | Mon Jul 30 11:08:23 EDT 2007 | swag

I have a new contract with boards that have straight edges and are good for v-score breakout panel design. However, many of the traces are very close to the edge of the board so I am concerned that the traces could be damaged when we run them throug

Re: Proflow of DEK screen printer

Electronics Forum | Tue Sep 07 12:02:30 EDT 1999 | Brad Kendall

| Dear sirs, | | If you have experienced Proflow of DEK screen printer, please let me know the details of it. | | Best regards, | | Jame Bond | | I have had Proflow for about 8 weeks now. I have had my fair share of problems with it. It does

Re: PCB panellisation

Electronics Forum | Tue Apr 07 17:33:17 EDT 1998 | Eldon Sanders

I agree with Michael, scoring works great. We build both and medium size small boards, anywhere from 2 to 100 square inches. Thickness from .030 to .062 Panels contain anywhere from 2 to 16 boards. About half are odd shaped, with cutouts and not

Rippling effect of stencils

Electronics Forum | Fri Jan 10 15:02:03 EST 2003 | John

Hi. I am familiar with the Transition blades. Normally, when there is metal to metal contact, as in the squeegee-stencil situation, there will be scratches, or a "brush pattern". Sometimes it takes the pattern of the high profile surface elements u

Re: how to overcome tolerance in automatic alignment

Electronics Forum | Sun Sep 12 08:20:04 EDT 1999 | se

| | | | hi, i m college student. i m currently doing my Final year project in PCB drilling. the main task is to design auto feeder which allign the PCB properly in position before drilling take place. the close tolerance becomes a big problem to the

Re: how to overcome tolerance in automatic alignment

Electronics Forum | Fri Sep 10 12:09:02 EDT 1999 | Earl Moon

| | | hi, i m college student. i m currently doing my Final year project in PCB drilling. the main task is to design auto feeder which allign the PCB properly in position before drilling take place. the close tolerance becomes a big problem to the pr

Re: Shorts in corners of BGA devices

Electronics Forum | Fri Jun 23 10:01:35 EDT 2000 | Bob Willis

A couple of weeks back I produced a video clip for Metcal to show what happens when BGA pop or the edge of the base warps causing shorts to form. Its 2.3meg if there is enough interest in seeing this I will put it up some where for download. Bob Wil

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