Glynn,

This test appears to be created by the witches in a Shakespeare play.
It has nothing to do with your end use environments (unless you're
selling them on Venus!)

There is no possible way to correlate this test with field reliability!!

You could not get a paralyne coated board to pass this test! (Xy
oxidizes at about 110 deg C)

Your customer needs lessons on harsh environments testing our you need
to send them some where else.
This is an impossible situation!!

David A. Douthit
Manager
LoCan LLC

Glynn Shaw wrote:

> Customer is taking fully loaded, tested assemblies and cooking them:
>
> 2 atmospheres, absolute
> 121 deg C
> 100% humidity
> 72 hours
>
>
> Pass-fail criteria: boards must appear cosmetically identical, before and
> after cooking.
>
> They don't... but the circuits aren't falling off the bones and the boards
> still function electrically after drying :-)
>
> Question: is this a valid/known Jedec, IPC, or Telecom test or is customer
> using grandma's recipe? End use is cell phones.
>
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