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Expired Canadian patentCanada

Functional znse:h deposited films

CA 1333356 C · Owner: Arao, Kozo · Inventors: Fujioka, Yasushi; Arao, Kozo; Kanai, Masahiro

CIPO record

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Abstract From the Canadian patent

There is provided a functional ZnSe:H deposited film composed of zinc atoms, selenium atoms and at least, hydrogen atoms, with the content of hydrogen atoms being 1 to 4 atomic% and the ratio of crystal grains per unit volume being 65 to 85 vol%. It is capable of efficient doping and is stable to irradiation. It can be made into a high conductivity p-type of n-type ZnSe:H:M film by doping. It can be efficiently deposited on a non-single crystal substrate such as metal, glass and synthetic, resin which was incapable of efficient depositing. Thus the invention makes it possible to form a high-functional device such as a photovoltaic element of ZnSe film on a non-single crystal substrate.

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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

  • Granted December 6, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 6, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 20, 1988
GrantedDecember 6, 1994
Term endedDecember 6, 2011
Patent numberCA 1333356 C
Classification (IPC)H01L21/36 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedJuly 20, 1988Patent grantedDec 6, 1994Term endedDec 6, 2011

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.