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<miso!Amerigo.Com!Vespuchi> |
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Mon, 11 Sep 95 15:21:19 -0700 |
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| From [log in to unmask] Sat Apr 27 14: |
46:01 1996 |
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I have a suggestion, how about upgrading your keyboard to support
lower case letters???
At 11:01 AM 9/11/95 -0600, BOB HOENE wrote:
>WOULD ANYONE CARE TO ADVISE THE GUIDELINES FOR FLEXIBLE
>PRINTED WIRING PERTAINING TO PRE-BAKE BEFORE ASSEMBLY.
>DURING THIS LAST AND LONG HOT SUMMER, WE SEEM TO HAVE
>EXPERIENCED UNFAVORABLE STORAGE CONDITIONS AND OUR FLEX
>CIRCUITS ARE "BLISTERING", THAT IS, THE COVERLAY IS LETTING GO
>OF THE BASE MATERIAL DURING PROCESSING. WE BELIEVE THIS TO
>BE A MOISTURE RELATED PROBLEM. WE WAVE SOLDER AND IR
>REFLOW CIRCUITS IN OUR PROCESS. YOUR ADVICE AS TO BAKE
>TEMPERATURE, DURATION, AND SUGGESTED WORKING TIME
>ALLOWABLE BETWEEN BAKE AND ASSEMBLY WOULD BE
>APPRECIATED.
>
>
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