DE3375965D1 - Semiconductor memory - Google Patents

Semiconductor memory

Info

Publication number
DE3375965D1
DE3375965D1 DE8383110928T DE3375965T DE3375965D1 DE 3375965 D1 DE3375965 D1 DE 3375965D1 DE 8383110928 T DE8383110928 T DE 8383110928T DE 3375965 T DE3375965 T DE 3375965T DE 3375965 D1 DE3375965 D1 DE 3375965D1
Authority
DE
Germany
Prior art keywords
semiconductor memory
semiconductor
memory
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.)
Expired
Application number
DE8383110928T
Other languages
English (en)
Inventor
Hideo Sunami
Tokuo Kure
Yoshifumi Kawamoto
Masanobu Miyao
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3375965D1 publication Critical patent/DE3375965D1/de
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
    • G11C11/40—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
    • G11C11/404—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 with one charge-transfer gate, e.g. MOS transistor, per cell
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
    • H01L29/92—Capacitors with potential-jump barrier or surface barrier
    • H01L29/94—Metal-insulator-semiconductors, e.g. MOS
    • H01L29/945—Trench capacitors
    • 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
    • H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
    • H10B12/37—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells the capacitor being at least partially in a trench in the substrate
    • 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
    • H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
    • H10B12/39—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells the capacitor and the transistor being in a same trench
    • H10B12/395—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells the capacitor and the transistor being in a same trench the transistor being vertical
DE8383110928T 1982-11-04 1983-11-02 Semiconductor memory Expired DE3375965D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57192478A JPS5982761A (ja) 1982-11-04 1982-11-04 半導体メモリ

Publications (1)

Publication Number Publication Date
DE3375965D1 true DE3375965D1 (en) 1988-04-14

Family

ID=16291954

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8686105956T Expired - Lifetime DE3382212D1 (de) 1982-11-04 1983-11-02 Halbleiterspeicher.
DE8383110928T Expired DE3375965D1 (en) 1982-11-04 1983-11-02 Semiconductor memory

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8686105956T Expired - Lifetime DE3382212D1 (de) 1982-11-04 1983-11-02 Halbleiterspeicher.

Country Status (4)

Country Link
EP (2) EP0108390B1 (de)
JP (1) JPS5982761A (de)
KR (1) KR910002816B1 (de)
DE (2) DE3382212D1 (de)

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JP2604705B2 (ja) * 1985-04-03 1997-04-30 松下電子工業株式会社 Ｍｏｓキヤパシタの製造方法
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Also Published As

Publication number Publication date
EP0108390B1 (de) 1988-03-09
JPH0342514B2 (de) 1991-06-27
EP0202515B1 (de) 1991-03-13
JPS5982761A (ja) 1984-05-12
EP0108390A1 (de) 1984-05-16
KR910002816B1 (ko) 1991-05-04
EP0202515A1 (de) 1986-11-26
DE3382212D1 (de) 1991-04-18
KR840006873A (ko) 1984-12-03

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