Better late than never, but we're already into our end of quarter crunch
(24x7 on two shifts, ow!)....

As mentioned by others, us contract shops are often stuck with what we
get from customers. So we see routed/tabbed with or without 'mouse
bites' at the tabs, and v-scored assemblies. For routed/tabbed, we use a
pneumatic "tab nibbler" from cab to minimize bending stress and leave
clean edges for cosmetics. For v-scored, we use a variety of in house
designed holding fixtures to manually break edges with component
overhang, or a "pizza cutter" from cab (bottom blade fixed) for clear
runs. We used to do a lot of manual breaking of v-score, but had seen
instances of component fracture both at the edge and further into the
circuit based on how each operator handled them during depanel.

Mike McMonagle
PCA Process Engineering Supervisor
K*Tec Electronics
1111 Gillingham Lane
Sugar Land, TX  77478
(281) 243-5639 Phone
(281) 243-5539 Fax
[log in to unmask]

> -----Original Message-----
> From: [log in to unmask] [SMTP:[log in to unmask]]
> Sent: Tuesday, December 01, 1998 7:38 AM
> To:   [log in to unmask]
> Subject:      [TN] Router survey
>
> Hi again, Technetters -
> The router survey is going well - thanks to those who have responded
> and are
> responded.  Of course, just about everyone that has responded so far
> are using
> some means of post-assembly routing.  I'd also very much like to hear
> from
> those who are pre-scoring (pre-assembly) and manually breaking the
> boards away
> after assembly.
> Thanks much.
> Phil Zarrow
> ITM, Inc.
> Durham, NH
> www.ITM-SMT.com
>
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