Light emitting diodes including modifications for submount bonding and manufacturing methods therefor
CA 2453581 A1 · Owner: Cree, Inc. · Inventors: Williams, Bradley E.; Slater, David B. Jr.; Andrews, Peter S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Light emitting diodes include a substrate an epitaxial region on the , substrate that includes therein a diode region and a multilayer conductive stack on the epitaxial region opposite the substrate. A passivation layer extends at least partially on the multilayer conductive stack opposite the epitaxial region, to define a bonding region on the multilayer conductive stack opposite the epitaxial region. The passivation layer also extends across the multilayer conductive stack, across the epitaxial region and onto the substrate. The multilayer conductive stack can include an ohmic layer on the epitaxial region opposite the substrate a reflector layer on the ohmic layer , opposite the …
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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 July 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2024.
- 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.