Electronics Forum: what (Page 1446 of 1843)

Re: SECS/GEM

Electronics Forum | Mon Jun 29 07:17:59 EDT 1998 | smd

| Would anybody like to share experiences with adding and using the | SECS/GEM interface on a multi-vendor line(DEK,FUJI,PANASONIC, | UNIVERSAL,BTU)??? I still don't quite understand how to use this interface. Can someone explain it? Will someone ex

Re: Siemens siplace for high mix/medium to low volume

Electronics Forum | Sat Jun 13 00:45:49 EDT 1998 | Phillip Hunter

Is cost an issue? I evaluated Siemens Siplace about a year ago and the price per placement was twice what Phillips Machinery has to offer. We too are a high mix/low PCb count shop. Also, Siemens has many hidden costs and the references I talked to

Re: SMT process benchmarks??

Electronics Forum | Wed Jun 10 14:48:12 EDT 1998 | Chrys

| | Does anyone have any info./studies on what the percentage or PPM defect rates are for each part of the typical SMT process. | | Example: | | Screen Print = 45% of total defects | | Component Placement = 25% of total defects |

Re: BGA Rework

Electronics Forum | Tue Jun 16 15:06:48 EDT 1998 | Bob Willis

I must say that I feel when the board has been correclty designed with corner marks on the edge of the BGA the optical systems are not necessary on 0.50/0.060" pitch. I like both air and IR the IR has the major benifit that you do not need all the ex

What's the Deal W. Philips Topaz??

Electronics Forum | Mon Jun 08 07:49:40 EDT 1998 | smd

In our continued search for another flex machine, we reconsidered Philips Emerald (low Vol/high mix Mfg). We already have a CSM so it makes a little sense. Then the salesman started talking about the Topaz. The Topaz supposedly is "practically the sa

Re: What's the Deal W. Philips Topaz??

Electronics Forum | Sat Jun 13 07:23:18 EDT 1998 | Dave F

| In our continued search for another flex machine, we reconsidered Philips | Emerald (low Vol/high mix Mfg). We already have a CSM so it makes a little sense. Then the salesman started talking about the Topaz. The Topaz supposedly is "practically th

Re: Geometric Dimensioning and Tolerancing

Electronics Forum | Sun Jun 07 02:06:26 EDT 1998 | Earl Moon

| Earl, | As always, I am interested in what you have to say, but I am still a little vague on your application of ANSI Y14.5 as it relates to the manufacturability of an assembled printed circuit board. Are you implying that component placement coor

Which Paste

Electronics Forum | Fri Jun 05 06:20:19 EDT 1998 | Terry Keen

I am currently reading as many articals as I can to familiaize myself with Surface Mount Technology. My company is planning to install a SM production line by the end of the year. Here is one of my questions. I have read that one of the specification

Help me increase my first pass yields

Electronics Forum | Thu Jun 04 11:23:44 EDT 1998 | Frank S

If you could measure and chart 3 variables in my process, what would they be? The boards that I produce are on panels that are 12up and 2x4 up. All boards are single sided paper base w/o plated thru holes. They are on scored panels that measure 7"

Re: Help me increase my first pass yields

Electronics Forum | Thu Jun 04 11:57:59 EDT 1998 | Pete M

Be more specific on your problems? | If you could measure and chart 3 variables in my process, what would they be? | The boards that I produce are on panels that are 12up and 2x4 up. All boards are single sided paper base w/o plated thru holes. The


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