US3597524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device with a gas and moisturetight housing
Assignee: Siemens AG
•
Filing: 1969-09-22
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Granted: 1971-08-03
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Expires: 1989-09-22
Abstract
Abstract A semiconductor device has a semiconductor member and a housing, the latter having portions disposed adjacent the member. Each portion is formed of porous sinter metal and has at least two regions of respectively different space-filling factors. The housing has a plastic portion contiguous to and partially penetrating the regions whereby the interior of the housing is sealed against the ingress of moisture and gas.
Inventors
- 👤 Horst Schreiner
- 👤 Heinrich Hassler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:32
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/10; H10W74/111; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/138; H10W76/40; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169; Y10T29/49171; Y10T29/49172
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
40 words
In a semiconductor device according to claim 1, one of said regions having a space-filling factor in the range between 0.5 and 0.8, and the other of said regions having a space-filling factor in the range between 0.9 and 1.
References Cited (Backward Citations)
US3475662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |