Method of making a semiconductor device by dry etching process

Fishing – trapping – and vermin destroying

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437231, 156643, H01L 21465

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053169808

ABSTRACT:
In a method for making a semiconductor device, an insulating film, which is composed of a silicon oxide film and an organic spin-on glass film, is formed on a semiconductor substrate having a step-like part. The insulating film is thereafter etched back with a dry etching process and is thereby planarized. As an etching gas, a mixture of at least one of fluorocarbon types of gases and at least one of hydrofluorocarbon types of gases is used. An insulating film having a high planarity is thereby obtained.

REFERENCES:
patent: 4654113 (1987-03-01), Tuchiya et al.
patent: 4676867 (1987-06-01), Elkins et al.
"IEEE Transactions on Semiconductor Manufacturing", vol. 1, No. 4, Nov. 1988, New York, pp. 154-156, P. E. Riley, et al.

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