KR20080079940A - Cmos 반도체 소자 및 그 제조방법 - Google Patents
Cmos 반도체 소자 및 그 제조방법 Download PDFInfo
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- KR20080079940A KR20080079940A KR1020070020593A KR20070020593A KR20080079940A KR 20080079940 A KR20080079940 A KR 20080079940A KR 1020070020593 A KR1020070020593 A KR 1020070020593A KR 20070020593 A KR20070020593 A KR 20070020593A KR 20080079940 A KR20080079940 A KR 20080079940A
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- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/51—Insulating materials associated therewith
- H01L29/517—Insulating materials associated therewith the insulating material comprising a metallic compound, e.g. metal oxide, metal silicate
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- A—HUMAN NECESSITIES
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28026—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor
- H01L21/28088—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being a composite, e.g. TiN
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
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- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
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- H01L21/823828—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate conductors, e.g. particular materials, shapes
- H01L21/823842—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate conductors, e.g. particular materials, shapes gate conductors with different gate conductor materials or different gate conductor implants, e.g. dual gate structures
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
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Abstract
Description
Claims (20)
- nMOS 영역과 pMOS영역을 가지는 CMOS 반도체 소자에 있어서,상기 nMOS 영역과 pMOS 영역에는 poly-Si 캡핑층과 이 하부의 금속 질화물층을 포함하는 게이트가 각각 마련되고,상기 nMOS 영역과 pMOS 영역의 각 게이트의 하부에는 게이트 절연층이 마련되고,상기 nMOS 영역과 pMOS 영역의 금속 질화물층은 동종 물질로 형성되며, 각 영역의 금속 질화물층은 불순물 농도 차에 따른 서로 다른 일함수를 가지는 것을 특징으로 하는 CMOS 반도체 소자.
- 제 1 항에 있어서,상기 게이트 절연층은 HfO2로 형성되는 것을 특징으로 하는 CMOS 반도체 소자.
- 제 2 항에 있어서,상기 금속 질화물층은 C, Cl, F, N, O 들 중 적어도 어느 하나의 성분을 불순물로 함유하는 것을 특징으로 하는 CMOS 반도체 소자.
- 제 1 항에 있어서,상기 금속 질화물층은 C, Cl, F, N, O 들 중 적어도 어느 하나의 성분을 불순물로 함유하는 것을 특징으로 하는 CMOS 반도체 소자.
- 제 1 항 내지 제 4 항 중의 어느 한 항에 있어서,상기 금속 질화물층은 Ti, Ta, W, Mo, Al, Hf, Zr 들 중 어느 하나의 원소와 N을 포함하는 것을 특징으로 하는 CMOS 반도체 소자.
- 제 5 항에 있어서,상기 금속 질화물층은 TiN으로 형성되는 것을 특징으로 하는 CMOS 반도체 소자.
- 제 5 항에 있어서,상기 nMOS 영역과 pMOS 영역의 금속 질화물층은 서로 다른 두께를 가지며 상대적으로 두꺼운 금속 질화물층은 복수의 단위 금속 질화물층을 가지는 것을 특징으로 하는 CMOS 반도체 소자.
- 제 1 항 내지 제 4 항 중의 어느 한 항에 있어서,상기 nMOS 영역과 pMOS 영역의 금속 질화물층은 서로 다른 두께를 가지며 상대적으로 두꺼운 금속 질화물층은 복수의 단위 금속 질화물층을 가지는 것을 특징 으로 하는 CMOS 반도체 소자.
- 제 8 항에 있어서,상기 두꺼운 금속 질화물층의 단위 금속 질화물층들은 서로 다른 농도의 불순물을 포함하는 것을 특징으로 하는 CMOS 반도체 소자.
- 제 1 항 내지 제 4 항 중의 어느 한 항에 있어서,상기 두꺼운 금속 질화물층의 단위 금속 질화물층들은 서로 다른 농도의 불순물을 포함하는 것을 특징으로 하는 CMOS 반도체 소자.
- 제 1 항에 있어서,상기 nMOS 영역의 금속 질화물층은 pMOS 영역의 금속 질화물층에 비해 얇은 두께를 가지며,상기 nMOS 영역의 금속 질화물층의 일함수는 pMOS 영역의 금속 질화물층의 일함수에 비해 낮은 것을 특징으로 하는 CMOS 반도체 소자.
- nMOS 영역과 pMOS 영역을 가지는 실리콘 기판 위에 게이트 절연막을 형성하는 단계;상기 게이트 절연막 위에, 상기 nMOS 영역과 pMOS 영역에서 대응하는 것으로 금속 질화물층 및 이 위의 다결정 실리콘 캡핑층을 가지는 게이트를 각각 형성하는 단계; 를 포함하며,상기 nMOS 영역의 금속 질화물층과 pMOS 영역의 금속 질화물층은 동종 물질로 형성하고 이들 각각에 불순물 농도 차를 조절하여 상기 두 금속 질화물층이 서로 다른 일함수를 가지도록 하는 것을 는 것을 특징으로 하는 CMOS 반도체 소자의 제조방법.
- 제 12 항에 있어서,상기 금속 질화물층의 불순물 농도의 조절은 금속 질화물층의 증착 온도 조절에 의해 수행하는 것을 특징으로 하는 CMOS 반도체 소자의 제조방법.
- 제 12 항에 있어서,상기 pMOS 영역의 금속 질화물층은 nMOS 영역의 금속 질화물층에 비해 두꺼운 두께를 가지며, 상기 pMOS 영역의 금속 질화물층의 일함수는 nMOS 영역의 금속 질화물층에 비해 높은 일함수를 가지는 것을 특징으로 하는 CMOS 반도체 소자의 제조방법.
- 제 12 항에 있어서,상기 게이트를 형성하는 단계는:상기 절연막 위에 1 차 금속 질화물층을 형성하는 단계;상기 1 차 금속 질화물층에서 상기 nMOS에 대응하는 부분을 제거하는 단계;상기 1 차 금속 질화물층과 상기 nMOS 영역 위에 2 차 금속 질화물층을 형성하는 단계;상기 2 차 금속 질화물층 위에 다결정 실리콘 캡핑층을 형성하는 단계; 그리고상기 절연물질로 부터 그 위의 적층들을 패터닝하여 상기 nMOS 영역 및 pMOS 영역에 대응하는 게이트를 상기 기판 위에 형성하는 단계;를 포함하는 것을 특징으로 하는 CMOS 반도체 소자의 제조방법.
- 제 15 항에 있어서,상기 1 차 금속 질화물층과 2 차 금속 질화물층은 서로 다른 공정 온도에서 형성하는 것을 특징으로 하는 CMOS 반도체 소자의 제조방법.
- 제 16 항에 있어서,상기 1 차 금속 질화물층의 공정 온도는 2 차 금속 질화물층의 공정 온도에 비해 100℃ 이상 낮은 것을 특징으로 하는 CMOS 반도체 소자의 제조방법.
- 제 12 항 내지 제 17 항 중의 어느 한 항에 있어서,상기 금속 질화물층은 Ti, W, Ta, Mo, Al, Hf, Zr로 이루어지는 그룹에서 선택된 어느 하나의 원소와 N을 포함하는 것을 특징으로 하는 CMOS 반도체 소자의 제조방법.
- 제 18 항에 있어서,상기 불순물은 C, Cl, F, N, O 로 이루어지는 그룹에서 선택된 적어도 하나의 원소를 포함하는 것을 특징으로 하는 CMOS 반도체 소자의 제조방법.
- 제 12 항 내지 제 17 항 중의 어느 한 항에 있어서,상기 불순물은 C, Cl, F, N, O 로 이루어지는 그룹에서 선택된 적어도 하나의 원소를 포함하는 것을 특징으로 하는 CMOS 반도체 소자의 제조방법.
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Application Number | Priority Date | Filing Date | Title |
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KR1020070020593A KR100868768B1 (ko) | 2007-02-28 | 2007-02-28 | Cmos 반도체 소자 및 그 제조방법 |
US12/007,433 US7919820B2 (en) | 2007-02-28 | 2008-01-10 | CMOS semiconductor device and method of fabricating the same |
JP2008041889A JP5931312B2 (ja) | 2007-02-28 | 2008-02-22 | Cmos半導体素子及びその製造方法 |
CN2008100805787A CN101257023B (zh) | 2007-02-28 | 2008-02-22 | Cmos半导体装置及其制造方法 |
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KR100868768B1 KR100868768B1 (ko) | 2008-11-13 |
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KR1020070020593A KR100868768B1 (ko) | 2007-02-28 | 2007-02-28 | Cmos 반도체 소자 및 그 제조방법 |
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US (1) | US7919820B2 (ko) |
JP (1) | JP5931312B2 (ko) |
KR (1) | KR100868768B1 (ko) |
CN (1) | CN101257023B (ko) |
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-
2007
- 2007-02-28 KR KR1020070020593A patent/KR100868768B1/ko active IP Right Grant
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2008
- 2008-01-10 US US12/007,433 patent/US7919820B2/en not_active Expired - Fee Related
- 2008-02-22 CN CN2008100805787A patent/CN101257023B/zh not_active Expired - Fee Related
- 2008-02-22 JP JP2008041889A patent/JP5931312B2/ja not_active Expired - Fee Related
Cited By (5)
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US8669624B2 (en) | 2012-04-27 | 2014-03-11 | Canon Anelva Corporation | Semiconductor device and manufacturing method thereof |
KR101384265B1 (ko) * | 2012-04-27 | 2014-04-11 | 캐논 아네르바 가부시키가이샤 | 반도체 소자 및 이의 제조 방법 |
US9018710B2 (en) | 2012-12-28 | 2015-04-28 | SK Hynix Inc. | Semiconductor device with metal gate and high-k materials and method for fabricating the same |
KR20200005418A (ko) * | 2018-07-05 | 2020-01-15 | 삼성전자주식회사 | 반도체 장치 |
US11949012B2 (en) | 2018-07-05 | 2024-04-02 | Samsung Electronics Co., Ltd. | Semiconductor device |
Also Published As
Publication number | Publication date |
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KR100868768B1 (ko) | 2008-11-13 |
JP2008219006A (ja) | 2008-09-18 |
US20080203488A1 (en) | 2008-08-28 |
CN101257023A (zh) | 2008-09-03 |
US7919820B2 (en) | 2011-04-05 |
CN101257023B (zh) | 2011-09-14 |
JP5931312B2 (ja) | 2016-06-08 |
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