US3341754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor resistor containing interstitial and substitutional ions formed by an ion implantation method
Assignee: Ion Physics Corp
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Filing: 1966-01-20
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Granted: 1967-09-12
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Expires: 1986-01-20
Abstract
No abstract record available.
Inventors
- 👤 Claud M Kellett
- 👤 William J King
- 👤 Frederick M Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:37
CPC Classifications
H; H10; H10D; H10D1/00; H10D1/40; H10D1/43; H01; H01J; H01J37/00; H01J37/30; H01J37/317; H01J37/3171; H10P; H10P95/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
88 words
A PASSIVE SEMICONDUCTIVE DEVICE COMPRISING A BODY OF CRYSTALLINE SEMICONDUCTOR MATERIAL OF A FIRST CONDUCTIVITY TYPE AND A KNOWN BULK RESISTIVITY, AT LEAST ONE REGION OF IMPLANTED IONS OF GIVEN DIMENSIONS IN SAID BODY, SAID REGION CONTAINING IONS OF BOTH INTERSTITIAL AND SUBSTITUTIONAL POSITIONS, SAID REGION HAVING A CONDUCTIVITY OPPOSITE TO THE CONDUCTIVITY OF THE BODY AND A SPECIFIED RESITIVITY DIFFERENT FROM THE BULK RESITIVITY, SAID SPECIFIED RESITIVITY BEING DETERMINED BY THE NUMBER OF IONS IN SUBSTITUTIONAL POSITIONS IN SAID CRYSTAL AND CONDUCTIVE LEADS CONNECTED TO SAID REGION.
Claim 2
Dependent Claim
88 words
A PASSIVE SEMICONDUCTIVE DEVICE COMPRISING A BODY OF CRYSTALLINE SEMICONDUCTOR MATERIAL OF A FIRST CONDUCTIVITY TYPE AND A KNOWN BULK RESISTIVITY, AT LEAST ONE REGION OF IMPLANTED IONS OF GIVEN DIMENSIONS IN SAID BODY, SAID REGION CONTAINING IONS OF BOTH INTERSTITIAL AND SUBSTITUTIONAL POSITIONS, SAID REGION HAVING A CONDUCTIVITY OPPOSITE TO THE CONDUCTIVITY OF THE BODY AND A SPECIFIED RESITIVITY DIFFERENT FROM THE BULK RESITIVITY, SAID SPECIFIED RESITIVITY BEING DETERMINED BY THE NUMBER OF IONS IN SUBSTITUTIONAL POSITIONS IN SAID CRYSTAL AND CONDUCTIVE LEADS CONNECTED TO SAID REGION.
Claim 3
Independent Claim
129 words
THE METHOD OF PRODUCING A PASSIVE ELECTRICAL COMPONENT COMPRISING STEPS OF DEPOSITING ON THE SURFACE OF A SEMICONDUCTIVE BODY, OF KNOWN CONDUCTIVITY AND RESISTIVITY, A TENACIOUS PASSIVATING LAYER, MASKING SAID TENACIOUS LAYER TO LEAVE EXPOSED SELECTED PORTIONS THEREOF, IMPLANTING SAID LAYER AND BODY WITH IONS HAVING THE CAPACITY TO EXIT INTERSTITIALLY OR SUBSTITUTIONALLY IN SAID BODY, SAID IONS BEING OF A GIVEN ENERGY IN EXCESS OF 50 KEV AND CONDUCTIVITY TO MODIFY THE CONDUCTIVITY AND RESISTIVITY OF THE UNMASKED REGIONS OF SAID BODY, REMOVING SAID MASK, REMASKING SAID LAYER TO LEAVE EXPOSED DIFFERENT PORTIONS THEREOF, REMOVING SAID EXPOSED DIFFERENT PORTIONS OF SAID LAYER TO EXPOSE THE SURFACE OF THE BODY, COUPLING CONDUCTIVE LEADS TO SAID EXPOSED BODY SURFACES AND HEAT TREATING SAID BODY AT A TEMPERATURE BELOW 800* C.
Claim 4
Independent Claim
129 words
THE METHOD OF PRODUCING A PASSIVE ELECTRICAL COMPONENT COMPRISING STEPS OF DEPOSITING ON THE SURFACE OF A SEMICONDUCTIVE BODY, OF KNOWN CONDUCTIVITY AND RESISTIVITY, A TENACIOUS PASSIVATING LAYER, MASKING SAID TENACIOUS LAYER TO LEAVE EXPOSED SELECTED PORTIONS THEREOF, IMPLANTING SAID LAYER AND BODY WITH IONS HAVING THE CAPACITY TO EXIT INTERSTITIALLY OR SUBSTITUTIONALLY IN SAID BODY, SAID IONS BEING OF A GIVEN ENERGY IN EXCESS OF 50 KEV AND CONDUCTIVITY TO MODIFY THE CONDUCTIVITY AND RESISTIVITY OF THE UNMASKED REGIONS OF SAID BODY, REMOVING SAID MASK, REMASKING SAID LAYER TO LEAVE EXPOSED DIFFERENT PORTIONS THEREOF, REMOVING SAID EXPOSED DIFFERENT PORTIONS OF SAID LAYER TO EXPOSE THE SURFACE OF THE BODY, COUPLING CONDUCTIVE LEADS TO SAID EXPOSED BODY SURFACES AND HEAT TREATING SAID BODY AT A TEMPERATURE BELOW 800* C.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |