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Expired Canadian patentCanada

I.c. chip mounting assembly and a method of manufacturing such assembly

CA 1162392 A · Owner: Amp Incorporated · Inventors: Keller, Joseph R.; Olsson, Billy E.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An IC chip mounting assembly comprises a lead frame providing a heat sink (3) and leads (4 5, 6), and a, housing (2) moulded on to the lead frame and providing a cavity (7) in which the chip (11) is received the housing, (2) having a wall (9) formed on the heat sink (3) with an aperture (10) in the wall (9) to receive and locate the chip (11). The wall (9) is also formed with a number of solder wells (13) in communication with the aperture (10) which solder wells (13) receive any excess solder (12) when the chip (11) is bonded to the heat sink (3) such bonding, being carried out with the use of an induction heating apparatus.

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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 February 21, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 21, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 16, 1981
GrantedFebruary 21, 1984
Term endedFebruary 21, 2001
Patent numberCA 1162392 A
Classification (IPC)H01L23/28 +2 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedJan 16, 1981Patent grantedFeb 21, 1984Term endedFeb 21, 2001

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.