FreeLists / si-list / [SI-LIST] [Fwd: Humidity effects on Rogers R3003]

[Raymond Anderson <Raymond.Anderson@xxxxxxx>]

Posted on behalf of Tom Waschura at Synthesys Research:

-------- Original Message --------
Subject: Humidity effects on Rogers R3003
Date: Wed, 04 Feb 2004 10:43:19 -0800
From: Tom Waschura <tom_waschura@xxxxxxxxxxxxxxxxxxxxx>
To: si-list@xxxxxxxxxxxxx

We are trying to evaluate the impact of humidity on delay (speed of
propigation) for transmission lines built as a microstrip-line on 10 mil
Rogers 3003 material.  Specifically, what amount of trace delay variation
might occur in 3" to 7" traces in the normal ranges of humidity in a lab
environment.  Any suggestions on ways to decrease this effect?

What is the time-constant for humidity changes?

Any thoughts would be appreciated.  Thanks.


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