Method for producing a copy protection for an electronic circuit and corresponding component
CA 2480797 A1 · Owner: Mund, Dietrich · Inventors: Mund, Dietrich; Leib, Juergen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for producing a copy protection for an integrated circuit. The aim of the invention is to provide an effective and reliable copy protection in order to prevent an unauthorized copying of an integrated circuit. To this end, the invention presents a method comprising the following steps: providing a substrate (1) having semiconductor structures (2) on at least one first side (1a) of the substrate (1); providing a material for coating the substrate (1), and; coating the substrate (1) with a copy protection layer (4). It has been proven advantageous to produce the copy protection layer (4) by vapor depositing a silicate glass so that an etching method, …
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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 April 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2025.
- 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.