Semiconductor devices and methods of mass production thereof
CA 2106981 A1 · Owner: Harris Corporation · Inventors: Temple, Victor Albert Keith
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A semiconductor device (10) includes a semiconductor substrate (12) forming the bottom portion of a package (14) of the device and a ceramic plate (34) forming the upper or lid portion (16) of the device. The substrate includes a layer of metal (32) on its upper surface (28) along the substrate outer edge and spaced apart from the electrodes (24) on the substrate upper surface. The ceramic plate includes a copper foil (26) on its lower surface along the outer edge thereof which overlaps and is bonded to the substrate metal layer. The ceramic plate has apertures (36) therethrough which are sealed by copper foils (40, 44) on the inside of the package, the foils being bonded to respective ones …
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 January 19, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 2015.
- 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.