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Expired Canadian patentCanada

Method of making an article comprising a heteroepitaxial structure, and article produced thereby

CA 1332695 C · Owner: White, Alice Elizabeth · Inventors: White, Alice Elizabeth; Short, Kenneth Thomas; Dynes, Robert Carr

CIPO record

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Abstract From the Canadian patent

Abstract, Disclosed is a technique, formed "mesotaxy" for producing a, heteroepitaxial structure comprising a layer of single crystal second material embedded in, and epitaxial with, a single crystal first material matrix. Mesotaxy comprises implantation of at least one chemical species (e.g. Co Ni, Cr, Y or, Mg) into a single crystal body (typically a semiconductor e.g. Si or Ge) such that, a buried layer rich in the implanted species is formed and heat treating the, implanted body such that a buried stoichiometric compound layer (e.g. CoSi2) isformed. Exemplarily 3 ? 1017/cm2 200 keV Co ions are implanted into (100) Si nominally at 350°C, followed by a heat treatment that consists of 1 …

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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 October 25, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 25, 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.
FiledNovember 24, 1987
GrantedOctober 25, 1994
Term endedOctober 25, 2011
Patent numberCA 1332695 C
Classification (IPC)H01L21/26 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedNov 24, 1987Patent grantedOct 25, 1994Term endedOct 25, 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.