KR101004207B1 - 저항 변화형 소자, 반도체 장치, 및 그 제조 방법 - Google Patents
저항 변화형 소자, 반도체 장치, 및 그 제조 방법 Download PDFInfo
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- KR101004207B1 KR101004207B1 KR1020087019611A KR20087019611A KR101004207B1 KR 101004207 B1 KR101004207 B1 KR 101004207B1 KR 1020087019611 A KR1020087019611 A KR 1020087019611A KR 20087019611 A KR20087019611 A KR 20087019611A KR 101004207 B1 KR101004207 B1 KR 101004207B1
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- resistance change
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/011—Manufacture or treatment of multistable switching devices
- H10N70/061—Shaping switching materials
- H10N70/066—Shaping switching materials by filling of openings, e.g. damascene method
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/20—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having two electrodes, e.g. diodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/30—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having three or more electrodes, e.g. transistors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/80—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/80—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays
- H10B63/84—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays arranged in a direction perpendicular to the substrate, e.g. 3D cell arrays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/20—Multistable switching devices, e.g. memristors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/821—Device geometry
- H10N70/826—Device geometry adapted for essentially vertical current flow, e.g. sandwich or pillar type devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/841—Electrodes
- H10N70/8418—Electrodes adapted for focusing electric field or current, e.g. tip-shaped
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/881—Switching materials
- H10N70/883—Oxides or nitrides
- H10N70/8833—Binary metal oxides, e.g. TaOx
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N99/00—Subject matter not provided for in other groups of this subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49082—Resistor making
- Y10T29/49099—Coating resistive material on a base
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- Semiconductor Memories (AREA)
Abstract
Description
Claims (14)
- 기판 위의 층간 절연층에 마련되고 저부(底部)에 하부 전극을 가지는 콘택트홀에, 상기 콘택트홀 내의 상면이 상기 층간 절연층의 상면보다 아래쪽에 위치하도록 저항 변화 재료를 퇴적시키는 공정과,퇴적된 상기 저항 변화 재료 위에, 상기 콘택트홀 내의 상면이 상기 층간 절연층의 상면보다 위쪽에 위치하도록 상부 전극 재료를 퇴적시키는 공정과,적층된 상기 저항 변화 재료와 상기 상부 전극 재료를 가지는 저항 변화형 소자를 CMP에 의해 소자 분리하는 공정을 가지는 저항 변화형 소자의 제조 방법.
- 제 1 항에 있어서,상기 저항 변화 재료를 퇴적시키는 공정은 MOD법 또는 MOCVD법에 의해 저항 변화 재료를 퇴적시키는 저항 변화형 소자의 제조 방법.
- 기판 위에 하부 전극막을 형성하는 공정과,상기 하부 전극막을 에칭하여 소정의 폭을 가지는 하부 전극을 폭방향으로 소정의 주기로 반복하도록 형성하는 공정과,상기 하부 전극을 산화 실리콘 또는 질화 실리콘에 의해 피복하여 층간 절연층을 형성하는 공정과,상기 층간 절연층을 패터닝하여 에칭함으로써 하부 전극에 연통하는 콘택트홀을 형성하는 공정과,상기 콘택트홀 내의 상면이 상기 층간 절연층의 상면보다 아래쪽에 위치하도록 저항 변화 재료를 MOD법 또는 MOCVD법에 의해 퇴적시키는 공정과,퇴적된 상기 저항 변화 재료 위에, 상기 콘택트홀 내의 상면이 상기 층간 절연층의 상면보다 위쪽에 위치하도록 상부 전극 재료를 퇴적시키는 공정과,적층된 상기 저항 변화 재료 및 상기 상부 전극 재료를 가지는 저항 변화형 소자를 CMP에 의해 소자 분리하는 공정을 가지는 저항 변화형 소자의 제조 방법.
- 기판과, 상기 기판 위에 형성된 하부 전극과, 상기 하부 전극 위에 형성되고, 인가되는 전압 펄스에 따라서 저항값이 변화하는 저항 변화층과, 상기 저항 변화층 위에 형성된 상부 전극과, 상기 기판 위에 형성된 절연층을 구비하는 저항 변화형 소자로서,상기 절연층에는 콘택트홀이 형성되고,상기 저항 변화층과 상기 상부 전극은 상기 콘택트홀의 상단보다 아래쪽에만 형성되고,상기 상부 전극은 상기 기판측을 향해서 볼록 형상으로 형성되고,상기 콘택트홀 내의 상단의 안쪽 주연부에는, 상기 저항 변화층이 존재하고 또한 상기 상부 전극이 존재하지 않는저항 변화형 소자.
- 삭제
- 삭제
- 제 4 항에 있어서,상기 볼록 형상으로 형성된 부위가 1개뿐인 저항 변화형 소자.
- 제 4 항에 있어서,상기 볼록 형상으로 형성된 면은, 상기 저항 변화층으로의 돌출량이 상기 전극의 주연부로부터 중앙부를 향해서 연속적으로 증가하도록 돌출해 있는 저항 변화형 소자.
- 제 4 항에 있어서,상기 저항 변화층의 두께 방향으로 자른 단면에 있어서 상기 볼록 형상으로 형성된 면이 이루는 경계가 활 형상으로 만곡해 있는 저항 변화형 소자.
- 삭제
- 제 4 항에 있어서상기 하부 전극에 전기적으로 접속되도록 다이오드가 상기 기판에 형성되어 있는 저항 변화형 소자.
- 제 4 항에 있어서상기 하부 전극에 전기적으로 접속되도록 전계 효과 트랜지스터가 상기 기판에 형성되어 있는 저항 변화형 소자.
- 청구항 4에 기재된 복수의 저항 변화형 소자가 매트릭스 형상으로 형성된 비휘발성 메모리부를 구비하는 반도체 장치.
- 청구항 4에 기재된 복수의 저항 변화형 소자가 매트릭스 형상으로 형성된 비휘발성 메모리부를 적층해서 이루어지는 반도체 장치.
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JP2006064277 | 2006-03-09 | ||
JPJP-P-2006-00064277 | 2006-03-09 |
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KR20080085215A KR20080085215A (ko) | 2008-09-23 |
KR101004207B1 true KR101004207B1 (ko) | 2010-12-24 |
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KR1020087019611A Expired - Fee Related KR101004207B1 (ko) | 2006-03-09 | 2007-02-27 | 저항 변화형 소자, 반도체 장치, 및 그 제조 방법 |
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US (1) | US8013711B2 (ko) |
JP (1) | JP4166820B2 (ko) |
KR (1) | KR101004207B1 (ko) |
CN (1) | CN101395717B (ko) |
WO (1) | WO2007102341A1 (ko) |
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- 2007-02-27 WO PCT/JP2007/053610 patent/WO2007102341A1/ja active Application Filing
- 2007-02-27 US US12/280,013 patent/US8013711B2/en active Active
- 2007-02-27 JP JP2008503788A patent/JP4166820B2/ja active Active
- 2007-02-27 KR KR1020087019611A patent/KR101004207B1/ko not_active Expired - Fee Related
- 2007-02-27 CN CN2007800073867A patent/CN101395717B/zh active Active
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JPWO2007102341A1 (ja) | 2009-07-23 |
CN101395717B (zh) | 2010-07-21 |
US20100225438A1 (en) | 2010-09-09 |
US8013711B2 (en) | 2011-09-06 |
WO2007102341A1 (ja) | 2007-09-13 |
KR20080085215A (ko) | 2008-09-23 |
JP4166820B2 (ja) | 2008-10-15 |
CN101395717A (zh) | 2009-03-25 |
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