Electrical interconnection method and apparatus utilizing raised connecting means
CA 2110892 C · Owner: Hughes Aircraft Company · Inventors: Sobhani, Mohi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pair of electrical circuits (20, 22) which may, be both flexible or one flexible and one rigid are, interconnected by projections, such as bumps (24) and rings (26). The projections are formed from substantially inelastic dielectric material, such as an epoxy, defining bumps (34) and rings (36), which are plated with copper (38). Projections (24, 26) of one circuit are disposed to interconnect with mating projections on the other circuit the interconnection, being bump to bump bump to ring, or bump to pad. The, projections may be formed on a copper-clad substrate (42) or on plated-through holes (72) on a printed wiring board (70). Alternately polygonal pads (94) on a circuit (90) may be …
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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 December 7, 1993 and granted March 25, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 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.