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US3731375A Expired / Lapsed US ⏱️ 0.0 years remaining

Monolithic integrated structure including fabrication and packaging therefor

Assignee: International Business Machines Corp
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Filing: 1970-04-16
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Granted: 1973-05-08
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Expires: 1990-04-16
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Abstract

Abstract A method of making a monolithic integrated semiconductor structure that has a plurality of functionally isolated individual cells that are electrically interconnected. Each of the cells is an object of mirror image cell that is vertically, horizontally and diagonally displaced from the object cell. The plurality of cells provide a memory array with electrical components of each memory cell composed of active and passive semiconductor devices. Other importance aspects of the structure include underpass connections and active devices in a common portion of the structure which are electrically interconnected at the same node potential by means of a highly doped buried region within the common portion of the structure.

Inventors

  • 👤 B Agusta
  • 👤 P Bardell
  • 👤 P Castrucci
  • 👤 R Henle
  • 👤 R Pecorato

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 13:55
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/41; G11C11/411; G11C11/4113; H03K3/288; Y; Y10; Y10S; Y10S438/00; Y10S438/914; Y10S438/917

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3295031A Cited
US3333326A Cited
US3392442A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-05-07 1976-11-06 1977-05-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-05-07 1980-11-06 1981-05-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-05-07 1984-11-06 1985-05-08 $7700.00 Window Closed / Lapsed

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