Electrical resistors – With base extending along resistance element – Resistance element coated on base
Patent
1981-11-24
1984-08-21
Mayewsky, Volodymyr Y.
Electrical resistors
With base extending along resistance element
Resistance element coated on base
29577C, 148 15, 219121LM, 338195, 357 51, 427 82, 427103, H01C 7012
Patent
active
044673124
ABSTRACT:
A semiconductor resistor device comprising a resistor region diffused in the surface area of a semiconductor substrate, resistor electrodes respectively ohmically contacted to the surface of the resistor region, and a protective layer coated on the surfaces of the resistor electrodes. A trimming electrode is provided which is ohmically contacted to the surface of the resistor region to alloy with the resistor and a hole is formed in that portion of the protective layer which faces the trimming electrode. Where laser pulses are emitted to the trimming electrode through the hole, the trimming electrode is alloyed with the resistor region to reduce the resistance of the resistor region.
REFERENCES:
patent: 3381256 (1968-04-01), Schuller et al.
patent: 3474304 (1969-10-01), Currin et al.
patent: 3649945 (1972-03-01), Waits
patent: 3700977 (1972-10-01), Lunn
patent: 3702955 (1972-11-01), Kalb et al.
patent: 3740621 (1973-06-01), Carley
patent: 3849757 (1974-11-01), Khammous
patent: 3947801 (1976-03-01), Bubc
patent: 3996551 (1976-12-01), Croson
patent: 4001762 (1977-01-01), Aoki et al.
patent: 4179310 (1979-12-01), Compton et al.
patent: 4258380 (1981-03-01), Roger
patent: 4270137 (1981-05-01), Coe
patent: 4272776 (1981-06-01), Weijland et al.
patent: 4288530 (1981-09-01), Bedard et al.
patent: 4291326 (1981-09-01), Higuchi et al.
patent: 4416049 (1983-11-01), McElroy
IBM Technical Disclosure Bulletin, vol. 17, No. 10, Mar. 1975, p. 2878.
IBM Technical Disclosure Bulletin, vol. 21, No. 8, Jan. 1979, pp. 3271 and 3272.
IBM Technical Disclosure Bulletin, vol. 21, No. 3, Aug. 1978, pp. 1124 and 1125.
Mayewsky Volodymyr Y.
Tokyo Shibaura Denki Kabushiki Kaisha
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