GB2005470A - Improvements in or relating to dynamic semiconductor storage elements - Google Patents

Improvements in or relating to dynamic semiconductor storage elements

Info

Publication number
GB2005470A
GB2005470A GB7837082A GB7837082A GB2005470A GB 2005470 A GB2005470 A GB 2005470A GB 7837082 A GB7837082 A GB 7837082A GB 7837082 A GB7837082 A GB 7837082A GB 2005470 A GB2005470 A GB 2005470A
Authority
GB
United Kingdom
Prior art keywords
semiconductor layer
storage
storage elements
relating
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7837082A
Other versions
GB2005470B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB2005470A publication Critical patent/GB2005470A/en
Application granted granted Critical
Publication of GB2005470B publication Critical patent/GB2005470B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/35—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices with charge storage in a depletion layer, e.g. charge coupled devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
    • G11C11/403—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration common to a multiplicity of memory cells, i.e. external refresh
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10B—ELECTRONIC MEMORY DEVICES
    • H10B12/00—Dynamic random access memory [DRAM] devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Semiconductor Memories (AREA)

Abstract

A dynamic semiconductor storage element comprises an MOS-storage capacitor (1,3,4) arranged on a semiconductor layer (4) of one conductivity type. This capacitor is fed with the charge to be stored via a bit line (5) constituted by a strip-shaped buried layer of the opposite conductivity type. A portion of the word line (1) forms a conductor path which is arranged above and insulated from the semiconductor layer (4) and serves as the outer electrode of the storage capacitor. In storage elements of this type, the drive voltage range on the word line is kept low by increasing the doping of the semiconductor layer (4) from its surface with the insulating layer (3) to a depth of a few 100 nm. The invention is particularly suitable for highly integrated storage components. <IMAGE>
GB7837082A 1977-09-29 1978-09-15 Dynamic semiconductor storage elements Expired GB2005470B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772743948 DE2743948A1 (en) 1977-09-29 1977-09-29 DYNAMIC SEMICONDUCTOR STORAGE ELEMENT

Publications (2)

Publication Number Publication Date
GB2005470A true GB2005470A (en) 1979-04-19
GB2005470B GB2005470B (en) 1982-05-26

Family

ID=6020261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7837082A Expired GB2005470B (en) 1977-09-29 1978-09-15 Dynamic semiconductor storage elements

Country Status (6)

Country Link
JP (1) JPS5458384A (en)
BE (1) BE870894A (en)
DE (1) DE2743948A1 (en)
FR (1) FR2404891A1 (en)
GB (1) GB2005470B (en)
IT (1) IT1098965B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0160951B2 (en) * 1978-01-03 1989-12-26 Advanced Micro Devices Inc
JPH04348068A (en) * 1991-03-18 1992-12-03 Toshiba Corp Semiconductor memory device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685739A (en) * 1970-08-07 1972-08-22 Afa Corp Liquid dispensing apparatus
JPS472778U (en) * 1971-01-27 1972-08-31
JPS4834939U (en) * 1971-08-26 1973-04-26
JPS5137664Y2 (en) * 1972-07-04 1976-09-14

Also Published As

Publication number Publication date
JPS5458384A (en) 1979-05-11
BE870894A (en) 1979-01-15
IT1098965B (en) 1985-09-18
DE2743948A1 (en) 1979-04-12
FR2404891A1 (en) 1979-04-27
IT7828175A0 (en) 1978-09-28
FR2404891B1 (en) 1983-12-02
GB2005470B (en) 1982-05-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee