Dual emitter programmable memory element and matrix
CA 1082808 A · Owner: Intersil, Inc. · Inventors: Fagan, Lloyd D.; Tripp, Gareth A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
DUAL EMITTER PROGRAMMABLE MEMORY, ELEMENT AND MATRIX" ABSTRACT, A plurality of dual emitter integrated circuit transistor elements in a single substrate having emitters interconnected to form a matrix is programmed by passing current between emitters of selected elements to short on base-emitter junction or to short one emitter to base and collector. A programmed ROM has a programmed bit electrically represented by a transistor and an unprogrammed location electrically represented by back-to-back transistors. Alternative programming of a bit or address may provide a diode connection for a programmed matrix bit and furthermore may provide an extremely short or low storage time for a …
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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
- Granted July 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 1997.
- 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.