Native growth of semiconductor oxide layers
CA 1084816 A · Owner: Western Electric Company, Incorporated · Inventors: Chang , Robert P.H.; Sinha, Ashok K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, An amorphous stoichiometric, native, semiconductor, oxide layer with a sharp interface between the oxids layer and the substrate, is grown by directing electrons toward a semiconductor substrate in the presence of oxygen. The source of electrons may be a simple filament. This invention may be implemented with standard plasma growth techniques by extracting the electrons from the plasma production region and directing them to the substrate - i -
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.