Alt-BEAM Archive
Message #00133
To: beam@corp.sgi.com
From: "Jesse D." smokin@n-link.com
Date: Mon, 02 Feb 1998 20:20:27 -0600
Subject: [alt-beam] Micro-SE
About 5 years ago I build a Micro-sized FM Bug/transmitter inside of an
ink pen.. plastic case transistors were too large so I purchased some in
the original "Metal Can" case. Using an assortment of jewler's tools I
cut the case off and managed to remove the transistor element from the
base of the can. VERY thin wires are tack welded onto the chip and it
takes a delicate hand to connect them to larger wires, i had a success
rate of about 1 in 5 without breaking the silicon element or the wires.
I then encased them inside a very small drop of epoxy. Total size of the
transistors was about .5mm X 1mm so small they look like bits of dirt..
Using surface mount components the entire circuit comprised of 3
transistors, a few resistors and capacitors and a small coil was aprox.
3x4mm and thats 3 times the components of a solar engine.
Perhaps I will look into this some more and come out with a line of
solar engines soo small you wont even be able to see them on a bot..
Im talking 3x3mm or smaller..
I will look into component sources and keep you updated, Would anyone
be interested in buying these MSE's (Micro Solar Engines) if I were to
produce them at a nominal cost?
--
__ __ Jesse C. Druehl __ __
/ `-' / ,,, AKA (Smoke) ,,, \ `-' \
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