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Expired Canadian patentCanada

Low-dielectric constant cryptocrystal layers and nanostructures

CA 2602365 C · Owner: Tubitak · Inventors: Kalem, Seref

CIPO record

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Abstract From the Canadian patent

This invention provides a method for producing application quality lowdielectric constant (low-k) cryptocrystal layers on state-of-the-art semiconductor wafers and for producing organized Nanostructures from cryptocrystals and relates to optical and electronic devices that can be obtained from these materials. The results disclosed here indicate that modification of structure and chemical composition of single crystal matrix using chemical vapor processing (CVP) results in high quality cryptocrystal layers that are homogeneous and form a smooth interface with semiconductor wafer. With this method, growth rates as high as 1 µm/hour can be realized for the dielectric cryptocrystal …

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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 February 8, 2006 and granted May 9, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 8, 2006
GrantedMay 9, 2017
Term endedFebruary 8, 2026
Patent numberCA 2602365 C
Classification (IPC)H01L21/02 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 8, 2006Patent grantedMay 9, 2017Term endedFeb 8, 2026

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