Electronics Forum: best (Page 335 of 524)

Re: Wave Soldering DPPM

Electronics Forum | Mon Jun 14 09:16:54 EDT 1999 | C.K.

| Dear All, | | We are having a big debate over what is the industry standard in DPPM on the wave sodlering process. is a DPPM of about 800 satisfactory. As per our big bosses it should not be more than 50 DPPM. Is the figure realistic. We are ty

Re: Ball Deformation Inspection for CSP devices

Electronics Forum | Wed Jun 02 11:29:39 EDT 1999 | John O'Brien

| | I am currently sourcing equipment to mount CSP devices. I have looked at the GSM Flexjet & also the Siemens 80 F series. However these machines only look for ball presence not ball deformation. Panasonic are the only ones who have a 3-D camera ca

Re: Need help on DFM rules

Electronics Forum | Tue Jun 01 11:45:54 EDT 1999 | Dave F

| | Hi, | | | | To improve the Design For Manufacturing I am currently looking to write down some design rules that can (and should be) used by our engineering department. | | | | Can somebody help me get started or give some usefull tips on where

PCB Prototypes

Electronics Forum | Thu May 06 09:15:51 EDT 1999 | Haitham Sakr

1. PCB boards coated with photoresist both Single & Double sided baords especially the double one with dimensions of 1 m square or 1/2 m square with a life guarntee not less than 3 years. > 2. Photoresist spray bottles of 200ml or more. > 3. Solder &

Re: PCB Prototypes

Electronics Forum | Thu May 06 14:22:00 EDT 1999 | Dave F

1. PCB boards coated with photoresist both Single & Double sided baords especially the double one with dimensions of 1 m square or 1/2 m square with a life guarntee not less than 3 years. | > 2. Photoresist spray bottles of 200ml or more. | > 3. Sold

PCB Prototypes

Electronics Forum | Thu May 06 09:10:44 EDT 1999 | Haitham Sakr

1. PCB boards coated with photoresist both Single & Double sided baords especially the double one with dimensions of 1 m square or 1/2 m square with a life guarntee not less than 3 years. > 2. Photoresist spray bottles of 200ml or more. > 3. Solder &

Setting up solder material evaluation (suggestions?)

Electronics Forum | Mon May 03 17:23:24 EDT 1999 | Kelly Morris

I am about to embark on an effort to evaluate 3 different solder material suppliers and their recommended materials for our assembly process, in an effort to find the best supplier/material. We do mixed technology, with NOCLEAN chemistry so I will b

Re: Communication???

Electronics Forum | Fri Apr 30 01:11:00 EDT 1999 | Dean

| We will be moving our entire plant in a couple of months . We are in the process of installing communication cable etc, to allow for a easy drop machine in line type move. ( is this possible) | My question is what type of communication cable would

Re: Successful Transfers to Contract Manufacturers

Electronics Forum | Wed Apr 28 07:35:54 EDT 1999 | Corey Peterson

| | | As I transfer prototypes/pilots out of my shop (because the designs are mature or Engineering confidence is high). How do I minimize my risk and ensure success for both the CEM and my boards. | | | | | | Best Regardsgroup. This would include

Re: Typical first pass yield in electronics

Electronics Forum | Tue Apr 27 09:31:45 EDT 1999 | Robert L. McCallum

On circuit board assemblies first pass yields need to be above 98%, if a supplier is below this level it is a indication that: he has poor control of the manufacturing process; Poor component selection (price over quality; excepted a poor design from


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