What tolerance should be assigned for top and bottom score alignment?

Jeffrey McGlaughlin CID
Battelle Memorial Inst.
Columbus Ohio
[log in to unmask]

-----Original Message-----
From: Ed Valentine [mailto:[log in to unmask]]
Sent: Wednesday, September 26, 2001 2:29 PM
To: [log in to unmask]
Subject: Re: [DC] V SCORING


Depending on whether you have components near the edge or that are sensitive
to shock, I normally recommend +/- .002" web thickness tolerance with 0.012"
web on 0.062" boards, and 0.010" web on 0.031" boards. With one customer we
are using a web of 0.008" +/- .002" on 0.031" boards.

Ed Valentine
Electronics Manufacturing Solutions
8612 Mourning Dove Road, Raleigh, NC 27615
Phone: (919) 270-5145, Fax: (919) 847-9971
Email: [log in to unmask]
Website: http://www.ems-consulting.com

----- Original Message -----
From: "John Wheeler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, September 26, 2001 12:47 PM
Subject: [DC] V SCORING


> Does anyone have/know of a standard tolerance to specify for the remaining
> web after scoring. Does +/-.004" sound reasonable.
>
> tia
> John Wheeler
>
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