Magnetic tunnel junction device and writing/reading method for said device
CA 2540608 C · Owner: Stanescu, Dana · Inventors: Stanescu, Dana; Sousa, Ricardo; Dieny, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The inventive device successively comprises a first electrode (12) a magnetic , reference layer (1), a tunnel barrier (3) a magnetic storage layer (4) and a , second electrode (13). At least one first heat barrier is disposed between the storage layer (4) and the second electrode (13) and made of a material whose thermal conductivity less than 5W/m/ ~C. A second thermal barrier can be constituted by a layer arranged between the first electrode (12) and the reference layer (1). The writing phase of the method involves the circulation of electric current (l1) through the tunnel junction of the storage layer (4) towards the reference layer (1) whereas the reading phase involves an …
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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 October 6, 2004 and granted December 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 6, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2026.
- 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
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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.