Method to extract circuit information
CA 2216900 C · Owner: Orisar Inc. · Inventors: Ioudovski, Alexei; Thomas, John Scott; Naim, Ghassam
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for analysing an integrated circuit (IC). At least a portion of a layer of the IC is, scanned using high magnification to obtain images of the IC. The images are registered to create, a mosaicked image. An IC layout database is created in the form of a set of polygons from the, mosaicked image, where the step of creating the IC layout database is performed after, or, pipelined with, the registering step. The process is repeated for plural IC layers, as necessary. Polygon sets from each layer are vertically registered into alignment with minimal distortion. A, netlist or schematic diagram is generated to represent the scanned IC portion based on the, registered set(s) of …
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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 September 26, 1997 and granted December 4, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 26, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2019.
- 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.