US2807558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing a semi-conductor device
Assignee: RCA Corp
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Filing: 1954-04-12
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Granted: 1957-09-24
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Expires: 1974-04-12
Abstract
No abstract record available.
Inventors
- 👤 Jacques I Pankove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:26
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/10; H10W74/131; Y; Y10; Y10S; Y10S438/00; Y10S438/974
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD OF SEALING A SEMI-CONDUCTOR DEVICE INCLUDING A RECTIFYING BARRIER COMPRISING THE STEPS OF APPLYING A POTENTIAL IN THE BACK DIRECTION ACROSS SAID BARRIER SUFFICIENT TO GENERATE HEAT ENOUGH TO PREVENT DEPOSITION OF MOISTURE THEREON AND THEN COATING SAID DEVICE WITH AN INSULATING MOISTURE-IMPERVIOUS, INERT MATERIAL WHILE MAINTAINING SAID POTENTIAL.
Claim 2
Independent Claim
51 words
A METHOD OF SEALING A SEMI-CONDUCTOR DEVICE INCLUDING A RECTIFYING BARRIER COMPRISING THE STEPS OF APPLYING A POTENTIAL IN THE BACK DIRECTION ACROSS SAID BARRIER SUFFICIENT TO GENERATE HEAT ENOUGH TO PREVENT DEPOSITION OF MOISTURE THEREON AND THEN COATING SAID DEVICE WITH AN INSULATING MOISTURE-IMPERVIOUS, INERT MATERIAL WHILE MAINTAINING SAID POTENTIAL.
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) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |