Ralph - I agree with Pat Kane's comments and would add one or two more items
to consider. You should only pay for "Good" boards, the X-Outs should not be
counted. Secondly, the fabricator should mark or cover over the board
fiducials for the X-Out boards in addition to clearly marking the boards
themselves. Some PNP's will recognize this as a bad board and skip the
board. Depending on how many boards per panel you have and the board's
complexity, I would have a hard time accepting more than 10% per panel, and
overall no more than 5% of the panels to have any X-Outs, and that assumes
you are using complex boards. If your PNP's cannot skip X-Outs, you should
seriously consider paying the premiums for no X-Outs. Obviously, all of this
depends on your company's individual situation and what your management can
live with. Ed/

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: Ralph Richart <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, June 05, 2000 12:04 PM
Subject: [TN] X-outs


> Hi all:
>
> We are a are presently discussing x-out allowances for bare fabs.  My
> questions are:
>
> 1. Are no x-out policies common?
>
> 2. Is it reasonable to expect to pay a premium for no x-outs?
>
> 3. If no x-out's are not reasonable or economically possible, what are
> reasonable x-out requirements?
>         For example, I've seen it specified that no single panel may
> have more than 20% x-out, and no more than 5% of the total order may
> have x'd out panels.
>
> 4. How difficult / costly is it for an assembly operation to deal with
> x-outs?
>
> thanks for you input....
>
> ralph richart
>
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