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May 2003

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Fri, 30 May 2003 13:39:49 -0400
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Steve, you might looking at internal fuse of the board.
                                                           jk

>-----Original Message-----
>From: TechNet [mailto:[log in to unmask]] On Behalf Of 
>Barmuta, Mike
>Sent: Friday, May 30, 2003 12:24 PM
>To: [log in to unmask]
>Subject: Re: [TN] Micro-inch to copper weight conversion...
>
>
>Steve: 1oz Cu foil on a finished outerlayer is typically 1300 
>microinches. You got some pretty thin copper at 170 
>microinches if the units and analysis are correct.
> 
> 
>Regards
> 
>Michael Barmuta
> 
>Staff Engineer
> 
>Fluke Corp.
> 
>Everett WA
> 
>425-446-6076
> 
>
>                                                 
>
>-----Original Message-----
>From: Steve Gregory [mailto:[log in to unmask]]
>Sent: Friday, May 30, 2003 9:13 AM
>To: [log in to unmask]
>Subject: [TN] Micro-inch to copper weight conversion...
>
>
>Hi All,
>
>I got my boards back from our fab vendor (the ones that had 
>the trace thickness problem), and they sent the XRF 
>measurements that they took. But they're in microinches, is 
>there some conversion that you do to convert that to copper weight?
>
>Here's the measurements that I got:
>
>       µin Cu      
>1.    170.9
>2.    173.0
>3.    170.1
>4.    170.6
>
>Thanks in advance!
>
>-Steve Gregory-    ---------------------------------------------------
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