US2994627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of semiconductor devices
Assignee: Motors Liquidation Co
•
Filing: 1957-05-08
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Granted: 1961-08-01
•
Expires: 1977-05-08
Abstract
No abstract record available.
Inventors
- 👤 Edward G Roka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:25
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/132; H10P; H10P95/00; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
THE METHOD OF MAKING A SEMICONDUCTOR SIGNAL TRANSLATING DEVICE COMPRISING THE STEPS OF DISPOSING A SEMICONDUCTIVE BODY UPON A SUPPORT STRUCTURE WITH A HORIZONTAL SURFACE OF THE BODY EXPOSED, DISPOSING A FIRST THREE DIMENSIONAL IMPURITY BODY HAVING AN UPPER AND LOWER SURFACE AND INNER AND OUTER SIDE WALLS ON SAID HORIZONTAL SURFACE OF THE SEMICONDUCTIVE BODY, CONFINING THE FIRST THREE DIMENSIONAL IMPURITY BODY ON ALL ITS EXPOSED SIDE WALLS, APPLYING PRESSURE TO THE FIRST IMPURITY BODY BY APPLYING THE GRAVITATIONAL FORCE OF A PREDETERMINED WEIGHT TO THE UPPER SURFACE OF THE FIRST IMPURITY BODY TO HOLD IT FIRMLY AGAINST THE SEMICONDUCTIVE BODY BUT NOT FORCE IT INTO THE SURFACE THEREOF, HEATING THE ASSEMBLY OF THE BODIES TO A TEMPERATURE GREATER THAN THE MELTING POINT OF THE FIRST IMPURITY BODY AND LESS THAN THE MELTING POINT OF THE SEMICONDUCTIVE BODY FOR A TIME PERIOD EXCEEDING THAT REQUIRED FOR ESTABLISING EQUILIBRIUM OF THE ALLOYING ACTION, INVERTING THE SEMICONDUCTIVE BODY ON THE SUPPORT STRUCTURE TO EXPOSE THE OPPOSITE HORIZONTAL SURFACE THEREOF, DISPOSING
Claim 2
Independent Claim
169 words
THE METHOD OF MAKING A SEMICONDUCTOR SIGNAL TRANSLATING DEVICE COMPRISING THE STEPS OF DISPOSING A SEMICONDUCTIVE BODY UPON A SUPPORT STRUCTURE WITH A HORIZONTAL SURFACE OF THE BODY EXPOSED, DISPOSING A FIRST THREE DIMENSIONAL IMPURITY BODY HAVING AN UPPER AND LOWER SURFACE AND INNER AND OUTER SIDE WALLS ON SAID HORIZONTAL SURFACE OF THE SEMICONDUCTIVE BODY, CONFINING THE FIRST THREE DIMENSIONAL IMPURITY BODY ON ALL ITS EXPOSED SIDE WALLS, APPLYING PRESSURE TO THE FIRST IMPURITY BODY BY APPLYING THE GRAVITATIONAL FORCE OF A PREDETERMINED WEIGHT TO THE UPPER SURFACE OF THE FIRST IMPURITY BODY TO HOLD IT FIRMLY AGAINST THE SEMICONDUCTIVE BODY BUT NOT FORCE IT INTO THE SURFACE THEREOF, HEATING THE ASSEMBLY OF THE BODIES TO A TEMPERATURE GREATER THAN THE MELTING POINT OF THE FIRST IMPURITY BODY AND LESS THAN THE MELTING POINT OF THE SEMICONDUCTIVE BODY FOR A TIME PERIOD EXCEEDING THAT REQUIRED FOR ESTABLISING EQUILIBRIUM OF THE ALLOYING ACTION, INVERTING THE SEMICONDUCTIVE BODY ON THE SUPPORT STRUCTURE TO EXPOSE THE OPPOSITE HORIZONTAL SURFACE THEREOF, DISPOSING
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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) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |