Control of crystal anisotropy for perovskite oxides on semiconductor-based substrates
CA 2337029 A1 · Owner: Mckee, Rodney Allen · Inventors: Walker, Frederick Joseph; Mckee, Rodney Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A crystalline structure (20, 60 or 220) and a device (120 140, 180 or 270) , which can be suited for use in any of a number of semiconductor or electrooptic applications, such as a phase modulator or a component of an interfereometer, includes a substrate (22 62, 142, 182, 222 or 272) of a , semiconductor-based material and a thin film (24 64, 144, 186 or 224) of a , crystalline oxide material epitaxially arranged upon the surface of the substrate so that the thin film couples to the underlying substrate and so that the geometries of substantially all of the unit cells of the thin film are arranged in a predisposed orientation relative to the substrate surface. The predisposition of …
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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
- Filed July 27, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 2021.
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Timeline
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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.