Electronics Forum: base (Page 116 of 313)

Re: Humidity control in assembly area.

Electronics Forum | Fri May 05 05:51:44 EDT 2000 | Joe

Thanks for the info. Our system is capable of holding the set limits, but since breakdowns do happen I am considering what to do. So while everything is running, we have a climatic controlled area. The min. relative humidity of 40% comes from the JE

Re: Convection Oven and thermo profiling of Circuit Boards

Electronics Forum | Wed Apr 19 18:02:34 EDT 2000 | Mike Flori

If you can divide your boards into different categories it allows you to determine a different starting profile for each category, based on size, # of layers, etc. When you get a new board to profile you'll have an idea what settings will get you clo

Solder Mask repair

Electronics Forum | Fri Apr 14 19:09:38 EDT 2000 | Ashok Dhawan

One of our customer insist on repair of solder mask even if it is pin holes or less than 0.010 sq in. area. Based on our knowledge bank, we though of thre options, there could be many more. 1. coat the exposed area with original solder resist (from

curing methode adhesive glue

Electronics Forum | Tue Apr 04 02:46:39 EDT 2000 | George Verboven

We are looking for a way to cure conductive adhesive. I heard about curing times from 2 hours and more. But I also received information that curing can be done in 10 minutes at 120 C. Of course it also depends from the type of glue. But the question

Re: Decommissioning or Scrapping PTH/SMT equipment

Electronics Forum | Fri Mar 31 14:23:13 EST 2000 | JAX

Hey Dave, thanks for the sparkling endorsement! No really, You have to be realistic when presenting your case. Once you understand that company decisions, like it or not, are based on the bottom line, the way you present your case will be clearer. I

Re: Decommissioning or Scrapping PTH/SMT equipment

Electronics Forum | Fri Mar 31 14:24:10 EST 2000 | JAX

Hey Dave, thanks for the sparkling endorsement! No really, You have to be realistic when presenting your case. Once you understand that company decisions, like it or not, are based on the bottom line, the way you present your case will be clearer. I

Re: Rework

Electronics Forum | Thu Mar 09 10:13:40 EST 2000 | Erick Russell

Hi Casey, I accept your BOLD Rework challenge. Considering you did not say what the TEST was. Let's base it on speed, thermal uniformity, and process repeatability. I have sample boards that I will take to APEX with Back to Back BGAs. Does anyone wa

Solder Balls

Electronics Forum | Wed Jan 31 17:45:37 EST 2001 | dason_c

Hi! William, please check the new IPC-A-610 Rev C, para 12.4.10 for the soldeirng anomalies. Most of them may consider as process indicator and not the defect. The most common method to elimate the solder ball is to reduce the solder volume by red

Moisture sensitive components (MSC)

Electronics Forum | Tue Feb 20 15:39:31 EST 2001 | fmonette

To my knowledge, the 40C was established as the maximum "safe temperature" for all tape and reel packaging. The actual specs may vary somewhat for different types of reel, pocket-tape, cover-tape but you must be concerned with the cover tape adhesive

Line tech in need of help

Electronics Forum | Thu Mar 15 16:41:46 EST 2001 | jollyrodger

You guys are absolutely correct, and i thank you for your invaluable advice. I would like to know if there is any online manuals for the equipment i stated b4. I have tried so hard to find these with little results. However i did get onto th


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