US4383355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the production of a sealed housing for a disk shaped semiconductor body which exhibits at least one pn-transition
Assignee: BBC BROWN BOVERI and COMPANY Ltd
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Filing: 1979-05-18
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Granted: 1983-05-17
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Expires: 1999-05-18
Abstract
Abstract The invention concerns a method for the construction of a sealed disc cell housing for a disc shaped semiconductor body (1), which consists, essentially, of a hollow-cylindrical insulation housing (9) and two pressure contact bodies (4). The latter are provided with seal rings (12) comprising tubing sections of a plastic material which has been treated by electron irradiation and is expandable by heating. The contact bodies (4) are inserted into the insulation housing (9) and the seal ring (12) heated, whereby the wall thickness of the tubing sections (12) increases seal the gap between the pressure contact bodies (4) and the insulation housing (9).
Inventors
- 👤 Dieter Eisele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:37
CPC Classifications
H; H10; H10W; H10W72/00; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/138; H10W76/60; H10W95/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
129 words
A method for the production of a sealed housing for a disc shaped semiconductor body having at least one pn-transition, said method comprising the steps of: pressure contacting opposing axial surfaces of said semi-conductor body with electrode elements and contact bodies to form a thermally and electrically sealing axial housing for said semiconductor body; positioning a stretched elastic seal ring on the radial periphery of each said contact body, said seal ring comprising tubing sections formed of a material treated by electron irradiation and radially expandable by heating; inserting said axial housing into a hollow radial housing whose inner diameter defines a gap with respect to said seal rings; and heating said seal rings, whereby said seal rings radially expand to close said gap and form a sealed housing.
Claim 2
Independent Claim
129 words
A method for the production of a sealed housing for a disc shaped semiconductor body having at least one pn-transition, said method comprising the steps of: pressure contacting opposing axial surfaces of said semi-conductor body with electrode elements and contact bodies to form a thermally and electrically sealing axial housing for said semiconductor body; positioning a stretched elastic seal ring on the radial periphery of each said contact body, said seal ring comprising tubing sections formed of a material treated by electron irradiation and radially expandable by heating; inserting said axial housing into a hollow radial housing whose inner diameter defines a gap with respect to said seal rings; and heating said seal rings, whereby said seal rings radially expand to close said gap and form a sealed housing.
Claim 3
Dependent Claim
24 words
The method of claim 1 wherein said step of positioning a stretched elastic seal comprises positioning a stretched elastic seal formed of synthetic caoutchouc.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |