KR101110403B1 - 반도체 기억 장치 - Google Patents
반도체 기억 장치 Download PDFInfo
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- KR101110403B1 KR101110403B1 KR1020100020315A KR20100020315A KR101110403B1 KR 101110403 B1 KR101110403 B1 KR 101110403B1 KR 1020100020315 A KR1020100020315 A KR 1020100020315A KR 20100020315 A KR20100020315 A KR 20100020315A KR 101110403 B1 KR101110403 B1 KR 101110403B1
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- 229910052782 aluminium Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/40—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the peripheral circuit region
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/10—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/107—Substrate region of field-effect devices
- H01L29/1075—Substrate region of field-effect devices of field-effect transistors
- H01L29/1079—Substrate region of field-effect devices of field-effect transistors with insulated gate
- H01L29/1083—Substrate region of field-effect devices of field-effect transistors with insulated gate with an inactive supplementary region, e.g. for preventing punch-through, improving capacity effect or leakage current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66825—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a floating gate
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/10—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the top-view layout
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/20—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by three-dimensional arrangements, e.g. with cells on different height levels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/30—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/40—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the peripheral circuit region
- H10B41/41—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the peripheral circuit region of a memory region comprising a cell select transistor, e.g. NAND
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
- Element Separation (AREA)
Abstract
Description
도 2는, 도 1에 도시하는 A-A'선을 따르는 단면도.
도 3은, 도 1에 도시하는 B-B'선을 따르는 단면도.
도 4의 (a) 내지 (c)는, 제1 실시 형태에 관한 반도체 기억 장치의 제조 방법을 예시하는 공정 단면도.
도 5의 (a) 및 (b)는, 제1 실시 형태에 관한 반도체 기억 장치의 제조 방법을 예시하는 공정 단면도.
도 6은, 제1 실시 형태에 관한 반도체 기억 장치의 기입 동작을 예시하는 회로도.
도 7의 (a)는 기입 대상이 되는 메모리 스트링의 인접 메모리 스트링을 예시하는 모식적인 단면도이고, (b)는 기입 대상이 되는 메모리 트랜지스터 및 그 인접 메모리 트랜지스터를 예시하는 모식적인 단면도.
도 8은, 제1 실시 형태의 비교예에 관한 반도체 기억 장치를 예시하는 단면도.
도 9는, 제1 실시 형태의 제1 변형예에 관한 반도체 기억 장치를 예시하는 단면도.
도 10은, 제1 실시 형태의 제2 변형예에 관한 반도체 기억 장치를 예시하는 단면도.
도 11은, 제1 실시 형태의 제3 변형예에 관한 반도체 기억 장치를 예시하는 단면도.
도 12는, 제1 실시 형태의 제4 변형예에 관한 반도체 기억 장치를 예시하는 단면도.
도 13은, 제1 실시 형태의 제5 변형예에 관한 반도체 기억 장치를 예시하는 단면도.
도 14의 (a)는 본 발명의 제2 실시 형태에 관한 반도체 기억 장치의 고내압 트랜지스터를 예시하는 평면도이고, (b)는 (a)에 도시하는 C-C'선을 따르는 단면도.
도 15의 (a)는 제2 실시 형태의 비교예에 관한 반도체 기억 장치의 고내압 트랜지스터를 예시하는 평면도이고, (b)는 (a)에 도시하는 C-C'선을 따르는 단면도.
Claims (22)
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- 반도체 기판과,
상기 반도체 기판의 상층 부분에 형성되고, 상기 상층 부분을 반도체 영역으로 구획하는 소자 분리 절연체와,
상기 반도체 영역의 바로 위 영역의 일부에 형성된 게이트 전극과,
상기 반도체 영역과 상기 게이트 전극 사이에 형성된 게이트 절연막과,
상기 반도체 영역에서의 상기 게이트 전극의 바로 아래 영역을 사이에 두는 영역에 형성된 한쌍의 소스ㆍ드레인 영역을 구비하고,
상기 반도체 영역에서의 상기 소스ㆍ드레인 영역이 형성되어 있는 부분보다 하방 부분의 채널 길이 방향의 폭은, 상기 소스ㆍ드레인 영역이 형성되어 있는 부분의 채널 길이 방향의 폭보다 좁은 것을 특징으로 하는 반도체 기억 장치. - 제13항에 있어서,
상기 반도체 기판에서의 상기 소자 분리 절연체의 바로 아래 영역에 형성되고, 도전형이 상기 반도체 영역의 도전형과 동일하고, 실효적인 불순물 농도가 상기 반도체 영역의 실효적인 불순물 농도보다 높은 웰을 더 구비한 것을 특징으로 하는 반도체 기억 장치. - 삭제
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- 제13항 또는 제14항에 있어서,
상기 반도체 기판 상에 형성된 터널 절연막과, 상기 터널 절연막 상에 형성된 전하 축적부와, 상기 전하 축적부 상에 형성된 컨트롤 전극을 구비한 메모리 트랜지스터를 더 포함하는 것을 특징으로 하는 반도체 기억 장치. - 제21항에 있어서,
상기 게이트 전극, 상기 게이트 절연막 및 상기 한 쌍의 소스ㆍ드레인 영역은 고내압 트랜지스터를 구성하고,
상기 고내압 트랜지스터보다 내압이 낮은 저내압 트랜지스터를 더 포함하며,
상기 고내압 트랜지스터 및 상기 저내압 트랜지스터는 상기 메모리 트랜지스터를 구동하는 주변 회로를 구성하는 것을 특징으로 하는 반도체 기억 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JPJP-P-2009-212793 | 2009-09-15 | ||
JP2009212793A JP2011066038A (ja) | 2009-09-15 | 2009-09-15 | 半導体記憶装置 |
Publications (2)
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KR20110030261A KR20110030261A (ko) | 2011-03-23 |
KR101110403B1 true KR101110403B1 (ko) | 2012-02-24 |
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KR1020100020315A KR101110403B1 (ko) | 2009-09-15 | 2010-03-08 | 반도체 기억 장치 |
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US (1) | US8860121B2 (ko) |
JP (1) | JP2011066038A (ko) |
KR (1) | KR101110403B1 (ko) |
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US8686492B2 (en) * | 2010-03-11 | 2014-04-01 | Spansion Llc | Non-volatile FINFET memory device and manufacturing method thereof |
JP2012160567A (ja) * | 2011-01-31 | 2012-08-23 | Toshiba Corp | 不揮発性半導体記憶装置及びその製造方法 |
JP2012174992A (ja) * | 2011-02-23 | 2012-09-10 | Toshiba Corp | 半導体記憶装置およびその製造方法 |
JP2013197482A (ja) * | 2012-03-22 | 2013-09-30 | Toshiba Corp | 不揮発性半導体記憶装置の製造方法および不揮発性半導体記憶装置 |
KR102398862B1 (ko) | 2015-05-13 | 2022-05-16 | 삼성전자주식회사 | 반도체 장치 및 그 제조 방법 |
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- 2009-09-15 JP JP2009212793A patent/JP2011066038A/ja active Pending
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JP2005285818A (ja) | 2004-03-26 | 2005-10-13 | Toshiba Corp | 半導体装置およびその製造方法 |
JP2006186073A (ja) | 2004-12-27 | 2006-07-13 | Toshiba Corp | 半導体装置およびその製造方法 |
JP2006286720A (ja) | 2005-03-31 | 2006-10-19 | Toshiba Corp | 半導体装置およびその製造方法 |
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KR20110030261A (ko) | 2011-03-23 |
US20110062509A1 (en) | 2011-03-17 |
JP2011066038A (ja) | 2011-03-31 |
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