Sub-kelvin resistance thermometer

Details Sub-kelvin resistance thermometer Sub-kelvin resistance thermometer

1991-09-24

1992-08-25

Cuchlinski, Jr., William A.

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

374185, 357 28, 338 22SD, 338 25, G01K 716, G01K 700

Patent

active

051413345

ABSTRACT:
A device capable of accurate temperature measurement down to 0.01.degree. K. of an object whose temperature is to be measured consisting of a heat sink wafer a first conducting pad bonded near one end of the heat sink wafer and a second conducting pad bonded near the other end of the heat sink wafer, an oblong doped semiconductor crystal such as germanium, the oblong doped semiconductor crystal has a third conducting pad bonded on its top surface and a fourth conducting pad bonded on its bottom surface with the oblong doped semiconductor crystal bonded to the heat sink wafer by having the fourth conducting pad bonded to the first conducting pad, a wire bonded between the second and third conducting pads, and current and voltage applying wires bonded to the first and second conducting pads whereby the change in resistance of the oblong doped semiconductor crystal indicates the temperature of an object whose temperature is to be measured.

REFERENCES:
patent: 2871427 (1959-01-01), Tyler et al.
patent: 3566690 (1971-03-01), Ebrahimi
patent: 3936789 (1976-02-01), Matzen et al.
patent: 4047436 (1977-09-01), Bernard et al.
patent: 4215577 (1980-08-01), Griffing et al.
patent: 4288775 (1981-09-01), Bennewitz et al.
patent: 4370640 (1983-01-01), Dynes et al.
patent: 4744246 (1988-05-01), Busta
patent: 4924114 (1990-05-01), Ruhle
McGraw-Hill Encyclopedia of Science & Technology, vol. 18, pp. 216-218, (1987).
McGraw-Hill Encyclopedia of Science & Technology, vol. 10, pp. 204-208, (1987).

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