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US3251004A Expired / Lapsed US ⏱️ 0.0 years remaining

Relaxation oscillator semiconductor solid circuit structure

Assignee: Merck and Co Inc
•
Filing: 1964-03-09
•
Granted: 1966-05-10
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Expires: 1984-03-09
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Abstract

No abstract record available.

Inventors

  • 👤 Donald J Shombert
  • 👤 John E Allegretti

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 05:47
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/83; H03K4/80; H10; H10D; H10D88/00; Y; Y10; Y10S; Y10S148/00; Y10S148/085; Y10S148/145

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 234 words
A RELAXATION OSCILLATOR SEMICONDUCTOR SOLID CIRCUIT STRUCTURE COMPRISING A SUBSTANTIALLY SINGLE CRYSTALLINE BASE LAYER OF SEMICONDUCTOR MATERIAL; FOUR LAYERS OF SEMICONDUCTOR MATERIAL OF ALTERNATING CONDUCTIVITY TYPE INTEGRALLY FORMED ON AND CRYSTALLOGRAPHICALLY AFFIXED TO SAID BASE LAYER, SAID FOUR LAYERS BEING DIVIDED BY A GAP FORMED THEREIN TRANSVERSE TO SAID BASE LAYER AND TO SAID FOUR LAYERS INTO TWO SECTIONS IN A MANNER WHEREBY ONE OF SAID TWO SECTIONS FORMS A PNPN SWITCH; A PLURALITY OF ADDITIONAL LAYERS OF SEMICONDUCTOR MATERIAL OF ALTERNATING CONDUCTIVITY TYPE INTEGRALLY FORMED ON AND CRYSTALLOGRAPHICALLY AFFIXED TO THE OTHER OF SAID TWO SECTIONS, THREE OF SAID PLURALITY OF ADDITIONAL LAYERS FORMING A FIRST ADDITIONAL SECTION FORMING A DIODE AND TWO OF SAID PLURALITY OF ADDITIONAL LAYERS FORMING A SECOND ADDITIONAL SECTION FORMING A DIODE, SAID FIRST AND SECOND ADDITIONAL SECTIONS HAVING ONE OF SAID PLURALITY OF ADDITIONAL LAYER IN COMMON AND BEING SPACED FROM EACH OTHER IN THEIR REMAINING ADDITIONAL LAYERS, SAID BASE LAYER PROVIDING A COMMON RESISTANCE CONTACT ONLY BETWEEN SAID SWITCH AND SAID DIODES AND THE COMMON LAYER OF SAID DIODES PROVIDING A COMMON CONNECTION FOR SAID DIODES; ELECTRICAL BIASING MEANS ELECTRICALLY CONNECTED TO ONE OF SAID DIODES ELECTRICALLY BIASING SAID ONE OF SAID DIODES AS A CAPACITOR; ELECTRICAL BIASING MEANS ELECTRICALLY CONNECTED TO THE OTHER OF SAID DIODES ELECTRICALLY BIASING SAID OTHER OF SAID DIODES AS A RESISTOR; AND MEANS ELECTRICALLY INTERCONNECTING SAID SWITCH AND SAID DIODES.
Claim 2
Dependent Claim 234 words
A RELAXATION OSCILLATOR SEMICONDUCTOR SOLID CIRCUIT STRUCTURE COMPRISING A SUBSTANTIALLY SINGLE CRYSTALLINE BASE LAYER OF SEMICONDUCTOR MATERIAL; FOUR LAYERS OF SEMICONDUCTOR MATERIAL OF ALTERNATING CONDUCTIVITY TYPE INTEGRALLY FORMED ON AND CRYSTALLOGRAPHICALLY AFFIXED TO SAID BASE LAYER, SAID FOUR LAYERS BEING DIVIDED BY A GAP FORMED THEREIN TRANSVERSE TO SAID BASE LAYER AND TO SAID FOUR LAYERS INTO TWO SECTIONS IN A MANNER WHEREBY ONE OF SAID TWO SECTIONS FORMS A PNPN SWITCH; A PLURALITY OF ADDITIONAL LAYERS OF SEMICONDUCTOR MATERIAL OF ALTERNATING CONDUCTIVITY TYPE INTEGRALLY FORMED ON AND CRYSTALLOGRAPHICALLY AFFIXED TO THE OTHER OF SAID TWO SECTIONS, THREE OF SAID PLURALITY OF ADDITIONAL LAYERS FORMING A FIRST ADDITIONAL SECTION FORMING A DIODE AND TWO OF SAID PLURALITY OF ADDITIONAL LAYERS FORMING A SECOND ADDITIONAL SECTION FORMING A DIODE, SAID FIRST AND SECOND ADDITIONAL SECTIONS HAVING ONE OF SAID PLURALITY OF ADDITIONAL LAYER IN COMMON AND BEING SPACED FROM EACH OTHER IN THEIR REMAINING ADDITIONAL LAYERS, SAID BASE LAYER PROVIDING A COMMON RESISTANCE CONTACT ONLY BETWEEN SAID SWITCH AND SAID DIODES AND THE COMMON LAYER OF SAID DIODES PROVIDING A COMMON CONNECTION FOR SAID DIODES; ELECTRICAL BIASING MEANS ELECTRICALLY CONNECTED TO ONE OF SAID DIODES ELECTRICALLY BIASING SAID ONE OF SAID DIODES AS A CAPACITOR; ELECTRICAL BIASING MEANS ELECTRICALLY CONNECTED TO THE OTHER OF SAID DIODES ELECTRICALLY BIASING SAID OTHER OF SAID DIODES AS A RESISTOR; AND MEANS ELECTRICALLY INTERCONNECTING SAID SWITCH AND SAID DIODES.

References Cited (Backward Citations)

US2907887A Cited
US3115581A Cited
US3118114A Cited
US3070762A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-05-09 1969-11-08 1970-05-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-05-09 1973-11-08 1974-05-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-05-09 1977-11-08 1978-05-10 $7700.00 Window Closed / Lapsed

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