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June 1998

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Subject:
board substrate for RF/microwave
From:
Matthew Park <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 8 Jun 1998 08:22:11 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (28 lines) 
I have a customer that designed and tested a 5Ghz oscillator
using 0.031" thick FR4-difunctional substrate.  The board is a
simple design with 120 smt comp's and some th.  The customer
tested proto-type units and they works good.  Obviously all of its
other  boards are designed using FR4-difuntioinal.
I don't think any board contract mfg want to take this job when I
see the board layout (it is not designed for manufacturability).

My question to you is "What board material is suitable for
5Ghz without  eating up too much cost?  I looked into Rogers's
material but don't think the customer want to pay  10 times more.

regards
Matthew
NII-Norsat International Inc.

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