KR970008176A - Semiconductor storage device - Google Patents

Semiconductor storage device Download PDF

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Publication number
KR970008176A
KR970008176A KR1019960028747A KR19960028747A KR970008176A KR 970008176 A KR970008176 A KR 970008176A KR 1019960028747 A KR1019960028747 A KR 1019960028747A KR 19960028747 A KR19960028747 A KR 19960028747A KR 970008176 A KR970008176 A KR 970008176A
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South Korea
Prior art keywords
memory cells
bit lines
data
dummy
transistor
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KR1019960028747A
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Korean (ko)
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KR100275193B1 (en
Inventor
야스오미 다나카
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우에시마 세이스케
야마하 가부시키가이샤
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C17/00Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G11C17/08Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements
    • G11C17/10Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM
    • G11C17/12Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM using field-effect devices
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C5/00Details of stores covered by group G11C11/00
    • G11C5/02Disposition of storage elements, e.g. in the form of a matrix array
    • G11C5/025Geometric lay-out considerations of storage- and peripheral-blocks in a semiconductor storage device
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C7/00Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/14Dummy cell management; Sense reference voltage generators
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C7/00Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/18Bit line organisation; Bit line lay-out
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10BELECTRONIC MEMORY DEVICES
    • H10B20/00Read-only memory [ROM] devices
    • H10B20/27ROM only
    • H10B20/30ROM only having the source region and the drain region on the same level, e.g. lateral transistors
    • H10B20/38Doping programmed, e.g. mask ROM

Abstract

본 발명의 ROM 등의 반도체기억장치는 복수의 메모리셀 및 더미셀(dummy cell)로 주로 이루어지며 상기 메모리셀은 비트라인에 접속되며 상기 더미셀은 상기 비트라인과 각기 병렬로 제공되는 더미비트라인에 접속된다. 상기 메모리셀 및 더미셀은 상기 비트라인과 더미라인을 교차하도록 배열된 워드라인으로 선택적으로 구동되는데 서로 관련이된 한쌍의 메모리셀 및 더미셀은 동일 워드라인으로 동시구동된다. 그리고 데이터는 마스크 프로그램에 따라 고정방식으로 메모리셀내에 각각 기억되며 상기 메모리셀내에 기록된 데이터의 역인 역데이터는 고정방식으로 상기 더미셀내에 각각 기억된다. 일 비트라인의 출력과 일 더미비트라인의 출력사이의 차를 검출하는데 사용되는 차동감지회로가 제공된다.The semiconductor memory device such as the ROM of the present invention is mainly composed of a plurality of memory cells and a dummy cell, the memory cells are connected to the bit lines, and the dummy cells are connected to the bit lines and the dummy bit lines Respectively. The memory cell and the dummy cell are selectively driven to a word line arranged to cross the bit line and the dummy line, and a pair of memory cells and a dummy cell associated with each other are concurrently driven to the same word line. The data are stored in the memory cells in a fixed manner in accordance with the mask program, and the inverse data of the data written in the memory cells are respectively stored in the memory cells in a fixed manner. A differential sense circuit is provided which is used to detect the difference between the output of one bit line and the output of one dummy bit line.

따라서 반도체기억장치의 판독동작에 있어서 고속성능과 우수한 노이즈대응을 실현할 수 있다. 더욱이 메모리셀(즉 MOS트랜지스터)가 실리콘기판상에 형성되며 더미셀(즉 박막 트랜지스터 구조를 가지는 트랜지스터)이 메모리셀상에 적층된 필름층에 형성된다. 이로서 반도체기억장치를 고밀도 집적할 수 있다.Therefore, high-speed performance and excellent noise response in the read operation of the semiconductor memory device can be realized. Furthermore, a memory cell (i.e., a MOS transistor) is formed on the silicon substrate and a micelle (i.e., a transistor having a thin film transistor structure) is formed in the film layer stacked on the memory cell. This makes it possible to integrate the semiconductor memory device with high density.

Description

반도체기억장치Semiconductor storage device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명의 일 실시예에 따라 설계된 NOR형 마스크 ROM의 등가회로를 도시하는 회로도.FIG. 1 is a circuit diagram showing an equivalent circuit of a NOR type mask ROM designed according to an embodiment of the present invention; FIG.

Claims (7)

복수의 비트라인; 상기 복수의 비트라인에 접속되며 마스크프로그램에 따라 고정방식으로 데이터가 각각 기록되는 복수의 메모리셀; 상기 복수의 비트라인과 각각 교차하도록 배열되며 상기 복수의 메모리셀을 선택적으로 구동시키는 복수의 워드라인; 상기 복수의 비트라인과 각각 병렬로 배열된 복수의 더미비트라인; 상기 복수의 더미비트라인에 접속되며 상기 복수의 메모리셀과 관련하여 각각 배열되는 복수의 더미셀로서, 관련된 한쌍의 메모리셀과 더미셀이 복수의 워드라인내에서 동일워드라인으로 동시구동되며 상기 복수의 메모리셀에 기록된 데이터의 역인 역데이터가 고정방식으로 복수의 더미셀에 각각 기록되게한 복수의 더미셀; 및 상기 비트라인의 출력과 상기 더미비트라인의 출력사이의 차를 검출하는 차동감지센서를 구비하는 것을 특징으로 하는 반도체기억장치.A plurality of bit lines; A plurality of memory cells which are connected to the plurality of bit lines and in which data is written in a fixed manner according to a mask program; A plurality of word lines arranged to cross each of the plurality of bit lines and selectively driving the plurality of memory cells; A plurality of dummy bit lines arranged in parallel with the plurality of bit lines; A plurality of further micelles connected to the plurality of dummy bit lines and respectively arranged with respect to the plurality of memory cells, wherein a pair of related memory cells and the micelles are simultaneously driven into the same word line in the plurality of word lines, A plurality of the micelles in which the inverse data of the data written in the memory cells of the plurality of memory cells are written in the plurality of the micelles in a fixed manner; And a differential detection sensor for detecting a difference between an output of the bit line and an output of the dummy bit line. 제1항에 있어서, 상기 복수의 메모리셀은 반도체기판상에 형성되며 상기 복수의 메모리셀은 상기 복수의 메모리셀상에 적층된 막층에 형성되는 것을 특징으로 하는 반도체기억장치.The semiconductor memory device according to claim 1, wherein the plurality of memory cells are formed on a semiconductor substrate, and the plurality of memory cells are formed in a film layer stacked on the plurality of memory cells. 복수의 비트라인; 상기 복수의 비트라인내에 하나의 비트라인에 소정수의 MOS트랜지스터가 접속되는 복수의 MOS트랜지스터; 상기 복수의 비트라인에 각기 교차하도록 배열되는 복수의 워드라인; 상기 복수의 비트라인에 각기 교차하도록 배열되는 복수의 더미비트라인; 상기 복수의 더미비트라인내의 하나의 더미비트라인에 접속되며 상기 소정수의 MOS트랜지스터와 각각 관련 배열되는 소정수의 트랜지스터를 가지는 복수의 트랜지스터; 상기 한 비트라인의 출력과 상기 한 더미라인의 출력사이의 차를 검출하는 차동감지수단을 구비하는데, 마스크프로그램에 따라 고정방식으로 상기 복수의 MOS트랜지스터에 데이터가 각각 기록되며 상기 복수의 MOS트랜지스터에 기록된 데이터의 역인 역데이터가 고정방식으로 복수의 트랜지스터내에 각각 기록되는 것을 특징으로 하는 반도체기억장치.A plurality of bit lines; A plurality of MOS transistors having a predetermined number of MOS transistors connected to one bit line in the plurality of bit lines; A plurality of word lines arranged to cross each of the plurality of bit lines; A plurality of dummy bit lines arranged to cross each of the plurality of bit lines; A plurality of transistors connected to one dummy bit line in the plurality of dummy bit lines and having a predetermined number of transistors arranged in association with the predetermined number of MOS transistors; And differential detection means for detecting a difference between the output of the bit line and the output of the dummy line, wherein data is recorded in the plurality of MOS transistors in a fixed manner in accordance with a mask program, And reverse inverse data of the recorded data is recorded in each of the plurality of transistors in a fixed manner. 제3항에 있어서, 실리콘기판상에 복수의 MOS트랜지스터가 형성되며 상기 복수의 MOS트랜지스터상에 막층이 적층되어 상기 복수의 MOS트랜지스터가 관련된 박막트랜지스터의 구조에 따라 복수의 트랜지스터가 상기 막층에 형성되는 것을 특징으로 하는 반도체기억장치.The method of manufacturing a semiconductor device according to claim 3, wherein a plurality of MOS transistors are formed on a silicon substrate, a film layer is laminated on the plurality of MOS transistors, and a plurality of transistors are formed on the film layer in accordance with the structure of the thin film transistor And the semiconductor memory device. 제3항에 있어서, 상기 복수의 MOS트랜지스터 P형 실리콘기판상에 형성된 n채널 MOS트랜지스터로 구성되며 상기 복수의 트랜지스터는 박막트랜지스터구조를 사용하여 복수의 트랜지스터가 복수의 MOS트랜지스터상에 각각 형성되는 것을 특징으로 하는 반도체기억장치.The semiconductor device according to claim 3, further comprising: an n-channel MOS transistor formed on the plurality of MOS transistor P-type silicon substrates, wherein the plurality of transistors are formed on the plurality of MOS transistors using a thin film transistor structure And the semiconductor memory device. 실리콘기판상에 MOS트랜지스터를 형성하는 단계; 마스크프로그램에 따라 선택 이온 주입기법을 이용하여 MOS트랜지스터상에 데이터를 기록하는 단계; MOS트랜지스터상에 막층을 성형하는 단계; 상기 막층에 박막트랜지스터를 가지는 트랜지스터를 성형하는 단계; 선택 이온주입기법에 의해 상기 트랜지스터에 상기 MOS트랜지스터에 기록된 데이터의 역인 역데이터를 기억하는 단계를 포함하여, 상기 데이터 및 역데이터가 고정방식으로 상기 MOS트랜지스터와 트랜지스터에 각각 기록되는 것을 특징으로 하는 반도체기억장치 제조방법.Forming a MOS transistor on the silicon substrate; Writing data on the MOS transistor using a selective ion implantation technique in accordance with a mask program; Forming a film layer on the MOS transistor; Forming a transistor having a thin film transistor on the film layer; And storing reverse inverse data of data written in the MOS transistor in the transistor by a selective ion implantation technique, wherein the data and reverse data are recorded in the MOS transistor and the transistor in a fixed manner, respectively A method of manufacturing a semiconductor memory device. 제6항에 있어서, 상기 MOS트랜지스터는 P형실리콘기판상에 형성되는 n채널 MOS트랜지스터로 구성되는 것을 특징으로 하는 반도체기억장치 제조방법.The method according to claim 6, wherein the MOS transistor is an n-channel MOS transistor formed on a P-type silicon substrate. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960028747A 1995-07-17 1996-07-16 Semiconductor memory device KR100275193B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP20288695A JPH0935490A (en) 1995-07-17 1995-07-17 Semiconductor memory
JP95-202886 1995-07-17

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KR970008176A true KR970008176A (en) 1997-02-24
KR100275193B1 KR100275193B1 (en) 2001-01-15

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11110967A (en) * 1997-10-01 1999-04-23 Nec Corp Semiconductor memory device
US6478231B1 (en) * 2001-06-29 2002-11-12 Hewlett Packard Company Methods for reducing the number of interconnects to the PIRM memory module
US6430078B1 (en) * 2001-07-03 2002-08-06 Agilent Technologies, Inc. Low-voltage digital ROM circuit and method
US7085153B2 (en) * 2003-05-13 2006-08-01 Innovative Silicon S.A. Semiconductor memory cell, array, architecture and device, and method of operating same
US20040228168A1 (en) * 2003-05-13 2004-11-18 Richard Ferrant Semiconductor memory device and method of operating same
US7978515B2 (en) 2007-03-23 2011-07-12 Sharp Kabushiki Kaisha Semiconductor storage device and electronic equipment therefor
JP5368266B2 (en) * 2009-11-11 2013-12-18 ローム株式会社 Semiconductor nonvolatile memory circuit
JP5651632B2 (en) 2012-03-26 2015-01-14 株式会社東芝 Programmable logic switch

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KR100275193B1 (en) 2001-01-15
JPH0935490A (en) 1997-02-07
TW302481B (en) 1997-04-11

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