Method of manufacturing a semiconductor device comprising a capacitor with a ferroelectric dielectric, and semiconductor device comprising such a capacitor
CA 2068020 A1 · Owner: Koninklijke Philips Electronics N.V. · Inventors: Ulenaers, Mathieu Joseph Emanuel; Larsen, Poul Kjaerby; Wolters, Robertus Adrianus Maria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PHN 13696 15.04.1992, ABSTRACT:, Method of manufacturing a semiconductor device comprising a capacitor with a ferroelectric dielectric, and semiconductor device comprising such a capacitor. A method of manufacturing a semiconductor device whereby a capacitor (2) is provided on a surface (10) of a semiconductor body (3) with a semiconductor element (1) in that a lower electrode (11) an oxidic ferroelectric dielectric (12) and an upper electrode (13) are provided in that order the upper electrode not covering an, edge of the dielectric after which an insulating layer (14) with superimposed metal conductor tracks is provided. According to the invention the edge of the dielectric (12), not …
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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 May 5, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 5, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2014.
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