US3786168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holder member for a disc-shaped semiconductor element
Assignee: BBC Brown Boveri AG Switzerland
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Filing: 1972-03-06
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Granted: 1974-01-15
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Expires: 1992-03-06
Abstract
Abstract A holder member for a disc-shaped semiconductor element includes a pair of spaced support plates each resiliently biased against one of a pair of pressure plates which are sandwiched between them. The semiconductor element is held between the pressure plates. The contacting surfaces between the support plates and the pressure plates each has a different radius of curvature. Various embodiments of the contacting surfaces between the support plates and the pressure plates include a convexly shaped projection on one with a convex, concave or planar surface on the other. Further, the contacting surfaces can be provided by intermediate members positioned between the oppositely facing plates and with the intermediate members having a convex or spherically shaped contacting surface.
Inventors
- 👤 A Jaecklin
- 👤 S Strassler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:09
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/138; H10W40/00; H10W40/60; H10W40/611; H10W40/625
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
339 words
In a holder member for holding at least one semiconductor element and having an axially extending column-like arrangement comprising a pair of pressure plates extending transversely of the axis of the column-like arrangement and disposed in oppositely arranged spaced relationship for holding the semiconductor element therebetween, at least one of said pressure plates forming a cooling body, clamping means in contact with said pressure plates for pressing said pressure plates toward one another and into contact with the semiconductor element, said clamping means includes a pair of support plate units each associated with a different one of said pressure plates and each having a surface arranged in contact with the surface of its associated said pressure plate which faces in the opposite direction from the surface thereof which contacts the semiconductor element, clamping members extending between said support plate units in the axial direction of the column-like arrangement, spring means mounted on said clamping members for biasing said support plate units together for pressing said pressure plates against the semiconductor element, the contacting surfaces of said support plate units and said pressure plates each having a different radius of curvature, said pressure plates arranged in spaced relationship in the direction extending transversely of the axis of the column-like arrangement of the holder member from said clamping members so that in the event of any movement of said pressure plate transversely of the axial direction of the column-like arrangement there is no contact between said pressure plates and said clamping members, the improvement comprising that each said support plate unit comprises a support plate located opposite and spaced from the outwardly facing surface of its associated said pressure plate, and a pair of intermediate members each seated in a different one of the oppositely facing surfaces of said support plate and pressure plate and extending into contact with the other said intermediate member, and at least one of said intermediate members of said pair having a convexly curved configuration in surface contact with the other one of said intermediate members.
Claim 2
Dependent Claim
339 words
In a holder member for holding at least one semiconductor element and having an axially extending column-like arrangement comprising a pair of pressure plates extending transversely of the axis of the column-like arrangement and disposed in oppositely arranged spaced relationship for holding the semiconductor element therebetween, at least one of said pressure plates forming a cooling body, clamping means in contact with said pressure plates for pressing said pressure plates toward one another and into contact with the semiconductor element, said clamping means includes a pair of support plate units each associated with a different one of said pressure plates and each having a surface arranged in contact with the surface of its associated said pressure plate which faces in the opposite direction from the surface thereof which contacts the semiconductor element, clamping members extending between said support plate units in the axial direction of the column-like arrangement, spring means mounted on said clamping members for biasing said support plate units together for pressing said pressure plates against the semiconductor element, the contacting surfaces of said support plate units and said pressure plates each having a different radius of curvature, said pressure plates arranged in spaced relationship in the direction extending transversely of the axis of the column-like arrangement of the holder member from said clamping members so that in the event of any movement of said pressure plate transversely of the axial direction of the column-like arrangement there is no contact between said pressure plates and said clamping members, the improvement comprising that each said support plate unit comprises a support plate located opposite and spaced from the outwardly facing surface of its associated said pressure plate, and a pair of intermediate members each seated in a different one of the oppositely facing surfaces of said support plate and pressure plate and extending into contact with the other said intermediate member, and at least one of said intermediate members of said pair having a convexly curved configuration in surface contact with the other one of said intermediate members.
Claim 3
Dependent Claim
46 words
A holder member, as set forth in claim 1, wherein said convexly curved intermediate member is seated on said pressure plate and the other said intermediate member has a planar surface in contact with said convexly curved intermediate member and is seated on said support plate.
Claim 4
Dependent Claim
25 words
A holder member, as set forth in claim 2, wherein an insulating layer is positioned between said support plate and the other said intermediate member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |