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April 1998

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Subject:
From:
"Edward J. Valentine" <[log in to unmask]>
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Date:
Mon, 6 Apr 1998 12:25:18 -0700
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annie laberge wrote:
>
> Hi everyone.
>
> Presently, The overall thickness of our boards that have V-groove is
> 0.062".  Our specifications for V-groove is:
> Remaining material: 0.018" + - 0.004"
> angle: 30 - 45 degre
> _________________________________________________
>
> FOR PCB'S MEASURING  0.093" , WHAT  SPECIFICATIONS ARE YOU USING ?
> AND WHAT IS THE TIGHTER TOLERANCE THAT CAN BE HELD FOR REMAINING MATERIAL ?
> (normal production...)
> _________________________________________________
>
> We have a limitation: our V-groove cutter can cut up to 0.025" maximum.
>
> Thanks in advance for any feedback and have a nice week .
>
> ALaberge
> Quality Eng.
> Matrox
>
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Annie -

We are using .012" for 062" thick PCB's, .010" for .031" and thinner
PCB's, and .018" for .093". You may also want to check out some of the
previous e-mails in the IPC archieves.

Ed Valentine
--

ProTronics, Inc.
861 Old Knight Road
Knightdale, NC 27545
Phone: (919) 217-0007, Fax: (919) 217-0050
http://www.protronics-inc.com

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