Processes for the preparation of polycrystalline diamond films

Details Processes for the preparation of polycrystalline diamond films Processes for the preparation of polycrystalline diamond films

1988-05-27

1990-05-15

Silverman, Stanley

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 451, 427 99, 427162, 427166, 427168, 427249, 4272551, 4272552, 427294, 427402, B05D 306

Patent

active

049257013

ABSTRACT:
A process for the preparation of continuous polycrystalline diamond films which comprises applying to a substrate diamond powder in an amount of from about one particle per ten square microns to about 10 particles per square micron with an average particle diameter of from about 0.1 to about 0.4 micron; heating the resulting powdered substrate subsequent to incorporation in a processing apparatus; introducing a mixture of gases into the chamber, which gases provide a supply of carbon and hydrogen; and decomposing the gas mixture.

REFERENCES:
patent: 3961103 (1976-06-01), Aisenberg
patent: 4060660 (1977-11-01), Carlson et al.
patent: 4434188 (1984-02-01), Kamo et al.
patent: 4490229 (1984-12-01), Mirtich et al.
patent: 4504519 (1985-03-01), Zelez
patent: 4707384 (1987-11-01), Schachner et al.
patent: 4725345 (1988-02-01), Sakamoto et al.
"Growth of Diamond Seed Crystals by Vapor Deposition", J. C. Angus et al., Case Western Reserve Univ., vol. 39, No. 6, May 1968.
"New Method of Nucleating Diamond", Komanduri et al., Nature, vol. 248, Apr. 12, 1974, pp. 582-584.

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