US4230901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing for semiconductor device
Assignee: Siemens AG
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Filing: 1979-05-01
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Granted: 1980-10-28
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Expires: 1999-05-01
Abstract
Abstract Housing for a semiconductor device includes a housing cup in which the semiconductor device is disposed, the housing cup has a bottom, at least one wall and a metal plate disposed opposite the bottom. The metal plate is thermally connected to the semiconductor device and has a mounting surface connectible to a heat sink and a lateral surface perpendicular to the mounting surface. Contacts extend from inside the housing cup through the bottom and are firmly connected thereto. Cutouts are formed in the metal plate at the edges thereof opposite said contacts. The mounting surface of the metal plate extends beyond the wall opposite the bottom. The housing is fillable with sealing compound through the cutouts to an extent where at least part of the lateral surface of the metal plate is wetted with sealing compound.
Inventors
- 👤 Christian Wengler
- 👤 Herbert Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/10; H10W74/111; H10W40/00; H10W40/10; H10W76/00; H10W76/10; H10W76/12; H10W76/161; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/49146
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
Housing for a semiconductor device, comprising a housing cup in which the semiconductor device is disposed, said housing cup having a bottom, a wall and a metal plate disposed opposite said bottom, said metal plate being thermally connected to the semiconductor device and having a mounting surface connectible to a heat sink and a lateral surface perpendicular to said mounting surface, contacts extending from inside said housing cup through said bottom and being firmly connected thereto, and cutouts formed in said metal plate at the edges thereof opposite said contacts, said mounting surface of said metal plate extending beyond said wall opposite said bottom, said housing being filled with sealing compound through said cutouts to an extent where at least part of said lateral surface of said metal plate is wetted with sealing compound.
Claim 2
Dependent Claim
134 words
Housing for a semiconductor device, comprising a housing cup in which the semiconductor device is disposed, said housing cup having a bottom, a wall and a metal plate disposed opposite said bottom, said metal plate being thermally connected to the semiconductor device and having a mounting surface connectible to a heat sink and a lateral surface perpendicular to said mounting surface, contacts extending from inside said housing cup through said bottom and being firmly connected thereto, and cutouts formed in said metal plate at the edges thereof opposite said contacts, said mounting surface of said metal plate extending beyond said wall opposite said bottom, said housing being filled with sealing compound through said cutouts to an extent where at least part of said lateral surface of said metal plate is wetted with sealing compound.
Claim 3
Dependent Claim
22 words
Housing according to claim 1, including projections integral with the inside of said wall, said metal plate being supported on said projections.
Claim 4
Dependent Claim
26 words
Housing according to claim 1, wherein said metal plate is so dimensioned that only the lateral surface thereof at said cutouts are wetted with sealing compound.
Claim 5
Dependent Claim
13 words
Housing according to claim 1, wherein said contacts are pressed-in to said bottom.
Claim 6
Dependent Claim
38 words
Housing according to claim 1, 2, 3 or 4, wherein said metal plate is smaller than the inside dimension of said wall so as to leave a space between said lateral edges and the inside of said wall.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |