On Sat, 14 Jul 2001 00:47:01 +1000, you wrote:

>> >I would like to hear what other PIClisters use to protect their =
designs.
>
>
>One technique that appeals to me is encapsulation
>in a plastic resin or epoxy;
Waste of time - normal epoxy is easy to remove with minimal damage -
unless you find something exotic (i.e expensive) that's hard to
remove, don't think potting will give you anything else but
environmental protection!
>* pot the whole product, good for small devices
>especially automotive ones.
>
>* pot a critical circuit or even just a PIC and
>it's crystal, etc in a tiny metal can, with just
>a pin header coming out. These tiny cans are cheap
>and can be board mounted, you see them in many
>devices now. All the user sees is the main board
>with the easy stuff, the 'smart" bit is in a little
>can with its own part number. Plastic cans are
>available too, they look like those square
>capacitors. "PIC in a can"?
Dremel.....
>* mount the smt chip(s) direct on the board, with a
>big blob of epoxy over it.
Easily dissolved

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