Integrated semiconductor arrangement of the coupling type between a photodetector and a light wave guide
CA 1291556 C · Owner: N.V. Philips' Gloeilampenfabrieken · Inventors: Erman, Marko; Gentner, Jean-Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Integrated semiconductor arrangement of the coupling type between a photodetector and a light wave guide. An integrated semiconductor arrangement of the coupling type between a photodetector D and a liqht wave guide G1, operating in a band of given wavelengths containing on the surface of a semiconductor substrate S of a III-V compound one after the other a confininq layer CO of III-V compound and atransparent layer C1 of a III-V compound for the operating wavelengths having an index superior to that of the confining layer the, light waveguide G1 being realised in layer C1 and also, containing an absorbina layer C3 of a III-V compound for the operating wavelengths havinu an index superior …
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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 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2008.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.