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Expired Canadian patentCanada

Group iii nitride based flip-chip integrated circuit and method for fabricating

CA 2511005 C · Owner: Cree, Inc. · Inventors: Parikh, Primit; Wu, Yifeng; Mishra, Umesh K.

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Abstract From the Canadian patent

A flip-chip integrated circuit and method for fabricating the integrated circuit are disclosed. A method according to the invention comprises forming a plurality of active semiconductor devices on a wafer and separating the active semiconductor devices. Passive components and interconnections are formed on a surface of a circuit substrate and at least one conductive via is formed through the circuit substrate. At least one of the active semiconductor devices is flip-chip mounted on the circuit substrate with at least one of the bonding pads in electrical contact with one of the conductive vias. A flip-chip integrated circuit according to the present invention comprises a circuit …

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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 December 23, 2003 and granted May 17, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 23, 2003
GrantedMay 17, 2016
Term endedDecember 23, 2023
Patent numberCA 2511005 C
Classification (IPC)H01L29/77 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedDec 23, 2003Patent grantedMay 17, 2016Term endedDec 23, 2023

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