PROCESS OF MANUFACTURE OF THIN RESISTIVE FILMS BASED ON TANTALUM-ALUMINIUM ALLOY Russian patent published in 1995 - IPC

Abstract RU 2028682 C1

FIELD: microelectronics. SUBSTANCE: film based on tantalum-aluminium alloy with content of tantalum up to 40-60 atomic per cent is deposited by cathode sputtering of tantalum and aluminium targets in atmosphere of oxygen. Partial pressure of oxygen is kept equal to (6.65-7.98) x 10-2 Pa and deposition of film is conducted with speed (3-4) . Then film is annealed in vacuum at 650-900 C. Specified technological modes provide for manufacture of film with specific resistance up to 5000 μk Ohm cm and thermal resistance coefficient not more than ∓ 5·10-5 deg -1. EFFECT: facilitated manufacture of thin-film resistors.

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RU 2 028 682 C1

Authors

Troitskij A.V.

Sherstobitova O.M.

Surov Ju.I.

Povolotskij E.G.

Dates

1995-02-09Published

1991-01-24Filed