Charlie,
one of our guys came from Ceramtech yesterday. He was impressed by their
technology, had 12 lasers going! They ought to know most of what you
need.  One trick for keeping the peaces together might be what we tried
once, namely put a blue tape on the substrate. That way you also protect
the substrate from microscopic bombardment of laser debris near scoring
tracks.//Ingemar



----------------------------------------------------------------------
> We are faced with creating a "hybrid" made with an ASIC on one side
and a
> custon Ceramic device (abt 0.50" square) on the opposite side.  The
ASIC
> will be mounted up-side down to the ceramic "interboard." The "hybrid"
will
> then be attached to an FR-4 board in the conventional manner.
>
> We will be building these in panel form. The ceramic between the two
parts
> after de-paneling will be .040" thick, and about .6" by .6" square.
There
> will be .25" spacing between rows of parts. Each panel will be about
4"
> square.
>
> I am lookig for suggestions in a couple of areas:
> 1. What is the best way of "scoring" the ceramic so things don't get
broken
> and people don't get hurt when snapping the panels apart.
> 2. What would be the suggested elevation of temperatures in a
seven-zone
> oven to compensate for the ceramic as compared to an FR-4 board?
>
> TIA for any input.
>
> Charlie B.
>
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