HK125595A - Memory cell design for dynamic semiconductor memories - Google Patents

Memory cell design for dynamic semiconductor memories

Info

Publication number
HK125595A
HK125595A HK125595A HK125595A HK125595A HK 125595 A HK125595 A HK 125595A HK 125595 A HK125595 A HK 125595A HK 125595 A HK125595 A HK 125595A HK 125595 A HK125595 A HK 125595A
Authority
HK
Hong Kong
Prior art keywords
memory cell
effect transistor
field
semiconductor memories
cell design
Prior art date
Application number
HK125595A
Inventor
Lothar Dr Dipl Phys Risch
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 HK125595A publication Critical patent/HK125595A/en

Links

Classifications

    • 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
    • H10B12/31—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor
    • 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
    • H10B12/01—Manufacture or treatment
    • H10B12/02—Manufacture or treatment for one transistor one-capacitor [1T-1C] memory cells
    • H10B12/03—Making the capacitor or connections thereto
    • H10B12/033—Making the capacitor or connections thereto the capacitor extending over the transistor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Semiconductor Memories (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Dram (AREA)

Abstract

A memory cell on a doped silicon substrate with high integration density has at least one field-effect transistor consisting of source (S) and drain (D) regions and a gate electrode (G), and a capacitor overlapping the gate electrode (G) of the field-effect transistor and formed as a "stacked capacitor". The capacitance of the capacitors of the memory cell is increased by a difference in the thickness of the two polysilicon layers (P2, P3), and the introduction of a contact support level in the polysilicon layer P2 ensures a simple contact transition between the supply line (Z) and the source region (S) of the field effect transistor. <IMAGE>
HK125595A 1986-10-16 1995-08-03 Memory cell design for dynamic semiconductor memories HK125595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3635293 1986-10-16

Publications (1)

Publication Number Publication Date
HK125595A true HK125595A (en) 1995-08-11

Family

ID=6311876

Family Applications (1)

Application Number Title Priority Date Filing Date
HK125595A HK125595A (en) 1986-10-16 1995-08-03 Memory cell design for dynamic semiconductor memories

Country Status (6)

Country Link
EP (1) EP0263941B1 (en)
JP (1) JPS63110666A (en)
KR (1) KR960015519B1 (en)
AT (1) ATE97259T1 (en)
DE (1) DE3788107D1 (en)
HK (1) HK125595A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286998A (en) * 1989-05-31 1994-02-15 Fujitsu Limited Semiconductor device having two transistors forming a memory cell and a peripheral circuit, wherein the impurity region of the first transistor is not subjected to an etching atmosphere
JPH0821687B2 (en) * 1989-05-31 1996-03-04 富士通株式会社 Semiconductor device and manufacturing method thereof
US5248628A (en) * 1989-09-08 1993-09-28 Kabushiki Kaisha Toshiba Method of fabricating a semiconductor memory device
JP2859363B2 (en) * 1990-03-20 1999-02-17 富士通株式会社 Semiconductor device and manufacturing method thereof
KR920008294B1 (en) * 1990-05-08 1992-09-26 금성일렉트론 주식회사 Method of manufacturing for semiconductor device
JP2701535B2 (en) * 1990-11-28 1998-01-21 日本電気株式会社 Semiconductor storage device
US5605857A (en) * 1993-02-12 1997-02-25 Micron Technology, Inc. Method of forming a bit line over capacitor array of memory cells and an array of bit line over capacitor array of memory cells
JP2009264319A (en) * 2008-04-28 2009-11-12 Denso Corp Muffling device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0618257B2 (en) * 1984-04-28 1994-03-09 富士通株式会社 Method of manufacturing semiconductor memory device
JPS61183952A (en) * 1985-02-09 1986-08-16 Fujitsu Ltd Semiconductor memory device and manufacture thereof
FR2577339B1 (en) * 1985-02-12 1991-05-10 Eurotechnique Sa DYNAMIC MEMORY IN INTEGRATED CIRCUIT
JPS61222255A (en) * 1985-03-28 1986-10-02 Fujitsu Ltd Manufacture of semiconductor memory device

Also Published As

Publication number Publication date
EP0263941A1 (en) 1988-04-20
KR880005687A (en) 1988-06-30
KR960015519B1 (en) 1996-11-15
JPS63110666A (en) 1988-05-16
DE3788107D1 (en) 1993-12-16
EP0263941B1 (en) 1993-11-10
ATE97259T1 (en) 1993-11-15

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)