H - Electricity – 01 – C
Patent
H - Electricity
01
C
356/96
H01C 7/04 (2006.01)
Patent
CA 1175954
GLASS COATED DISK THERMISTOR Abstract of the Disclosure A tri-metal contact film (31, 33) of silver, platinum, and palladium is metallurgically bonded to the opposite surfaces of a disk (11) of denser controlled temperature coefficient of resistance thermistor material. The disk is trimmed to the desired electrical dimensions and a silver-clad wire (61, 63) is fusion welded by thermocompression bonding to the contact film (31, 33) on each side of the disk. The method of making electrical contact allows the assembly to be encased in a conformal glass coating (75). The glass coating (75) provides enhanced stability, interchangeable thermistors having predetermined characteristics.
387641
Lamers Thomas H.
Trolander Hardy W.
Zurbuchen John M.
Gowling Lafleur Henderson Llp
Yellow Springs Instruments Company Inc. (the)
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