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November 2001

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Subject:
From:
"Roger M. Stoops" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 12 Nov 2001 13:56:42 -0500
Content-Type:
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Can you put the mouse-bite breakaway on the edges of the boards next to the
throw-away tabs only instead of board to board? Would be easier than say,
having breakaway tabs on all four sides.  0.062" is common diameter for
single-pass routing operations (as well as 0.093" diameter).  Also depends
on how the mouse-bite breakaway is designed (hole spacing. hole diameter,
holes in line with board edge, holes offset from centerline of board edge,
etc.
Rgds,
Roger M. Stoops, C.I.D., PCB Designer
[log in to unmask]


Trimble
Engineering and Construction Division
5475 Kellenburger Rd.
Dayton, OH 45424-1099 USA
Ph: +01 937.233.8921 or +01 937.233.4574 ext 288
Fax: +01 937.233.7511



                    Ken Patel
                    <[log in to unmask]        To:     [log in to unmask]
                    OM>                  cc:
                    Sent by:             Subject:     [TN] Spacing between board to board that has mouse/rat bite
                    TechNet              design...
                    <[log in to unmask]
                    ORG>


                    11/12/01
                    01:03 PM
                    Please
                    respond to
                    "TechNet
                    E-Mail
                    Forum."





All,
My fab house is recommending 0.062" spacing between the boards on a
subpanel. I am using mouse-bite or rat-bite. As there are 5 boards per
subpanel, I would like to get opinion on the recommended spacing between
the boards and NOT between the board and throw away tabs. Here that
hangover needed to removed from both boards and if it's only 0.062" wide
then I believe it will be a bit little difficult to remove from the
second board once removed from the first board.

        ________________________

                    Board #1
        ________________________
            this spacing
        ________________________

                    Board #2
        ________________________

and more....

Any suggestion will be highly appreciated.

Re,
Ken Patel

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