Capacitors in integrated circuits
CA 2287983 A1 · Owner: Nygren, Stefan · Inventors: Nygren, Stefan; Norstrom, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method for in the manufacturing of an , integrated circuit producing a capacitor with metallic conducting electrodes and to the capacitor itself and to the integrated circuit which preferably , are intended for high-frequency applications. According to the invention a , lower electrode (17, 63, 67) is produced through depositing a first metal layer (15) onto a layer structure (11) comprising lowermost a substrate and uppermost an insulating layer (13). An insulating layer (19) is deposited over the first metal layer (15), whereafter an electrical connection (25) to the lower electrode (17, 63, 67) is produced by etching a via hole (21) through said …
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 April 3, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2020.
- 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.