High temperature electronic devices
CA 2543909 C · Owner: Golla, Christopher A. · Inventors: Masino, James E.; Freeman, James J.; Rodney, Paul F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In at least some embodiments, electronic devices suitable for use at temperatures in excess of 200 ~C may comprise an integrated circuit fabricated on a silicon carbide substrate, and a thick passivation layer. In other embodiments, electronic devices suitable for use at temperatures in excess of 200 ~C may comprise an integrated circuit formed from silicon located on a sapphire substrate, and a thick passivation layer. The electronic devices may be implemented in the context of hydrocarbon drilling and production operations.
Read the whole patent
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 November 18, 2004 and granted January 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2024.
- 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.
Timeline
Timeline From CIPO dates
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.