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February 2010

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Subject:
FR-4 Mechanical Properties
From:
bob wettermann <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, bob wettermann <[log in to unmask]>
Date:
Tue, 2 Feb 2010 16:04:32 -0800
Content-Type:
text/plain
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text/plain (26 lines) 
Technetters:

We are working on a project where we have to mill down 0.005" on each side of a populated FR-4 board which is 0.062" in thickness making the nominal thickness 0.052" +/- 0.002".

The question for you mech-e's out there is :

"How will the mechanical properties of the board change with 0.010" being shved off of the thickness?" 

<The thickness is reduced by this amount near a mounting hole>

Thanks

Bob Wettermann
BEST Inc


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