Research/Patents/US 4617086
US 4617086

RAPID ETCHING METHOD FOR SLICON BY SF6 GAS

Assignee

INTERNATIONAL BUSINESS MACHINES CORPORATION; A CORP.OF NY.

Filed

Mar 19, 1982

Granted

Oct 14, 1986

Location

LOS GATOS CA US

Abstract

A method of etching silicon with a laser at a very fast rate of the order of 45 microns/second includes the steps of providing an atmosphere of sulfur hexafluoride about the silicon and directing a continuous laser beam having a wavelength of about 0.6 or less microns at said silicon.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Aug 11, 1982

Rescinded

Mar 13, 1986

Duration

3 years, 7 months

Inventor

  • 1TUNG J. CHUANG

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records