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US3846825A Expired / Lapsed US ⏱️ 0.0 years remaining

Semiconductor device having conducting pins and cooling member

Assignee: US Philips Corp
•
Filing: 1973-06-13
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Granted: 1974-11-05
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Expires: 1993-06-13
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Abstract

Abstract A semiconductor device comprising an insulating supporting plate which is provided on one of its surfaces with a pattern of metal conductors, of which one end is connected to current supply pins which extend at right angles to said surface and project from the supporting plate on the side of the conductors, and furthermore comprising a flexible insulating foil which is provided with a pattern of metal conductor tracks of which one end is connected to the contact places of a semiconductor body. The foil is present between the current supply pins with the semiconductor body and the conductor tracks facing the metal conductors, the ends of the conductor tracks remote from the semiconductor body being connected to the ends of the conductors remote from the current supply pins. A cooling member may be provided which extends to against the rear side of the semiconductor body and which confers extra rigidity upon the device.

Inventors

  • 👤 H Budde

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 08:30
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/157; H10W90/00; H10W90/701; H10W72/00; H10W72/071; H10W72/073; H10W72/07331; H10W72/07337; H10W72/30; H10W72/351; H10W72/353; H10W72/354

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 325 words
A semiconductor device comprising: a. an electrically insulating support plate having oppositely disposed first and second major surfaces, said plate comprising an aperture; b. a pattern of metal conductors disposed completely at said first major surface; c. current supply pins mounted on said support plate and having at least one thereof extending completely therethrough so as to be accessible from said second surface, said pins projecting orthogonally in the same direction from said first major surface, said pins being electrically and mechanically connected directly to respective parts of said metal conductors and extending a substantial distance from said first major surface so as to be available for making external electrical connections to said metal conductors; d. a semiconductor body comprising contact places, said semiconductor body being disposed in said plate aperture; e. a flexible electrically insulating foil of synthetic material; f. metal conductor tracks disposed on a first foil face and individually defining proximate and distal end portions, said distal end portions beiNg spaced closer to the periphery of said foil, said semiconductor body being mounted on said foil with its contact places being disposed on and in electrical contact with respective proximate end portions of said metal conductor tracks, said foil being disposed on said first major surface and lying wholly between the pins with the distal end portions being disposed on and in electrical contact with respective ones of said metal conductors and with the body being spaced from said second major surface, whereby said external electrical connections are made to said body and the opposite face of said foil is in overlying protective relationship to the body; and g. a cooling member connected to said support plate, said cooling member extending over at least a part of said second major surface of said support plate and comprising a projecting part which extends into said aperture of said support plate and engages the rear side of the semiconductor body in thermally conductive fashion.
Claim 2
Dependent Claim 325 words
A semiconductor device comprising: a. an electrically insulating support plate having oppositely disposed first and second major surfaces, said plate comprising an aperture; b. a pattern of metal conductors disposed completely at said first major surface; c. current supply pins mounted on said support plate and having at least one thereof extending completely therethrough so as to be accessible from said second surface, said pins projecting orthogonally in the same direction from said first major surface, said pins being electrically and mechanically connected directly to respective parts of said metal conductors and extending a substantial distance from said first major surface so as to be available for making external electrical connections to said metal conductors; d. a semiconductor body comprising contact places, said semiconductor body being disposed in said plate aperture; e. a flexible electrically insulating foil of synthetic material; f. metal conductor tracks disposed on a first foil face and individually defining proximate and distal end portions, said distal end portions beiNg spaced closer to the periphery of said foil, said semiconductor body being mounted on said foil with its contact places being disposed on and in electrical contact with respective proximate end portions of said metal conductor tracks, said foil being disposed on said first major surface and lying wholly between the pins with the distal end portions being disposed on and in electrical contact with respective ones of said metal conductors and with the body being spaced from said second major surface, whereby said external electrical connections are made to said body and the opposite face of said foil is in overlying protective relationship to the body; and g. a cooling member connected to said support plate, said cooling member extending over at least a part of said second major surface of said support plate and comprising a projecting part which extends into said aperture of said support plate and engages the rear side of the semiconductor body in thermally conductive fashion.
Claim 3
Dependent Claim 22 words
A semiconductor device as recited in claim 1, further comprising an abutment extending in the same direction as said current supply pins.
Claim 4
Dependent Claim 54 words
A semiconductor device as recited in claim 1, wherein said cooling member is substantially U-shaped and comprises limbs extending in the same direction as said current supply pins, portions of said limbs being deformed to engage said first surface of said supporting plate so as to connect said cooling member to said support plate.
Claim 5
Dependent Claim 39 words
A semiconductor device as recited in claim 1, wherein said support plate comprises at least two further apertures and said cooling member has at least two annular projections which are secured in said further apertures of the supporting plate.
Claim 6
Dependent Claim 28 words
A semiconductor device as recited in claim 1, wherein said cooling member comprises flanges which extend in a second direction different from that of said current supply pins.
Claim 7
Dependent Claim 28 words
A semiconductor device as recited in claim 5, further comprising a second cooling member provided with cooling ribs and connected between the flanges of said first cooling member.
Claim 8
Dependent Claim 40 words
A semiconductor device as recited in claim 1, further comprising a current conductor located at said second major surface of said support plate and electrically connected both to the cooling member and to said one of the current supply pins.
Claim 9
Dependent Claim 47 words
A semiconductor device as recited in claim 1, wherein said cooling plate comprises a lug which is bent to the lower side of the support plate and is connected there to one of a conductor tracks of said foil and a metal conductor of said support plate.

References Cited (Backward Citations)

US3361868A Cited
US3544857A Cited
US3670404A Cited
US3748726A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-04 1978-05-06 1978-11-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-04 1982-05-06 1982-11-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-04 1986-05-06 1986-11-05 $7700.00 Window Closed / Lapsed

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