KR100634168B1 - 낮은 문턱 전압 및 높은 절연파괴 전압의 트랜지스터를구비하는 반도체 장치 - Google Patents
낮은 문턱 전압 및 높은 절연파괴 전압의 트랜지스터를구비하는 반도체 장치 Download PDFInfo
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
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- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 3
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 3
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
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- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
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- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
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- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 3
- 229910021332 silicide Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 claims description 3
- 229910021342 tungsten silicide Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
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Abstract
Description
Claims (20)
- 반도체기판의 소정영역들에 각각 배치되는 제 1 게이트 전극, 제 2 게이트 전극 및 제 3 게이트 전극;상기 제 1, 제 2 및 제 3 게이트 전극들과 상기 반도체기판 사이에 각각 개재된 제 1 게이트 절연막, 제 2 게이트 절연막 및 제 3 게이트 절연막; 및상기 제 1, 제 2 및 제 3 게이트 전극들 양옆의 반도체기판 내에 각각 배치되는 제 1, 제 2 및 제 3 접합 영역들을 구비하되,상기 제 1 게이트 절연막은 상기 제 2 및 제 3 게이트 절연막보다 두껍고,상기 제 2 게이트 절연막과 상기 제 3 게이트 절연막은 동일한 두께를 갖고,상기 제 1 접합 영역은 상기 제 3 접합 영역과 동일한 구조이면서 상기 제 2 접합영역과는 상이한 구조인 것을 특징으로 하는 반도체 장치.
- 삭제
- 제 1 항에 있어서,상기 제 1 접합 영역은 제 1 저농도 영역과 제 1 고농도 영역을 구비하고,상기 제 3 접합 영역은 제 3 저농도 영역과 제 3 고농도 영역을 구비하되,상기 제 1 저농도 영역은 상기 제 1 고농도 영역보다 깊게 형성되고,상기 제 3 저농도 영역은 상기 제 3 고농도 영역보다 깊게 형성되는 것을 특징으로 하는 반도체 장치.
- 제 3 항에 있어서,상기 제 1 저농도 영역은 깊이, 불순물 농도 및 포함된 불순물의 종류에서 상기 제 3 저농도 영역과 동일하고,상기 제 1 고농도 영역은 깊이, 불순물 농도 및 포함된 불순물의 종류에서 상기 제 3 고농도 영역과 동일한 것을 특징으로 하는 반도체 장치.
- 제 3 항에 있어서,상기 제 1 저농도 영역은 상기 제 1 고농도 영역의 하부면 및 측면을 덮고,상기 제 3 저농도 영역은 상기 제 3 고농도 영역의 하부면 및 측면을 덮는 것을 특징으로 하는 반도체 장치.
- 제 3 항에 있어서,상기 제 1 저농도 영역은 상기 제 1 고농도 영역의 측면을 덮고,상기 제 3 저농도 영역은 상기 제 3 고농도 영역의 측면을 덮는 것을 특징으로 하는 반도체 장치.
- 제 6 항에 있어서,상기 제 1 접합영역은 상기 제 1 고농도 영역의 하부면을 덮는 제 1 하부 불순물 영역을 더 구비하고,상기 제 3 접합영역은 상기 제 3 고농도 영역의 하부면을 덮는 제 3 하부 불순물 영역을 더 구비하는 것을 특징으로 하는 반도체 장치.
- 제 6 항에 있어서,상기 제 1 저농도 영역들과 상기 제 1 게이트 전극 사이에 개재되는 제 1 절연 패턴; 및상기 제 3 저농도 영역들과 상기 제 3 게이트 전극 사이에 개재되는 제 3 절연 패턴을 더 구비하되,상기 제 1 및 제 3 절연 패턴들은 각각 상기 제 1 게이트 절연막 및 상기 제 3 게이트 절연막 보다 두꺼운 것을 특징으로 하는 반도체 장치.
- 제 1 항에 있어서,상기 제 2 접합영역은 제 2 저농도 영역과 제 2 고농도 영역을 구비하되,상기 제 2 저농도 영역은 상기 제 2 고농도 영역보다 얕게 형성되는 것을 특징으로 하는 반도체 장치.
- 제 9 항에 있어서,상기 제 2 저농도 영역은 상기 제 2 고농도 영역의 상부 측면을 덮는 것을 특징으로 하는 반도체 장치.
- 제 10 항에 있어서,상기 제 2 접합 영역은 상기 제 2 저농도 영역의 아래에 배치되어, 상기 제 2 고농도 영역의 하부 측면을 덮는 헤일로 영역을 더 구비하는 것을 특징으로 하는 반도체 장치.
- 제 1 항에 있어서,상기 제 1 게이트 전극의 양쪽 측벽에 배치되는 제 1 게이트 스페이서들;상기 제 2 게이트 전극의 양쪽 측벽에 배치되는 제 2 게이트 스페이서들; 및상기 제 3 게이트 전극의 양쪽 측벽에 배치되는 제 3 게이트 스페이서들을 더 구비하는 것을 특징으로 하는 반도체 장치.
- 제 12 항에 있어서,상기 제 2 게이트 스페이서는 바깥으로 연장된 수평 돌출부를 갖는 'ㄴ'자형 스페이서인 것을 특징으로 하는 반도체 장치.
- 제 1 항에 있어서,상기 제 1, 제 2 및 제 3 게이트 절연막은 실리콘 산화막, 실리콘 산화질화막, 실리콘 질화막, 알루미늄 산화막, 지르코늄 산화막 및 하프늄 산화막 중에서 선택된 적어도 한가지 막으로 형성하는 것을 특징으로 하는 반도체 장치.
- 제 1 항에 있어서,상기 제 1, 제 2 및 제 3 게이트 전극은 같은 두께를 갖는 같은 종류의 물질로 형성되는 것을 특징으로 하는 반도체 장치.
- 제 1 항에 있어서,상기 제 1, 제 2 및 제 3 게이트 전극은 다결정 실리콘, 탄탈륨, 탄탈륨 질화막, 지르코늄, 하프늄, 백금, 루세늄, 루세늄 산화막, 이리듐, 텅스텐, 폴리사이드, 텅스텐 실리사이드 및 코발트 실리사이드를 포함하는 그룹 중에서 선택된 적어도 한가지 물질로 형성되는 것을 특징으로 하는 반도체 장치.
- 반도체기판의 소정영역들에 각각 배치되는 제 1 게이트 전극, 제 2 게이트 전극 및 제 3 게이트 전극;상기 제 1 게이트 전극과 상기 반도체기판 사이에 개재된 제 1 게이트 절연막;상기 제 2 게이트 전극과 상기 반도체기판 사이에 개재된 상기 제 1 게이트 절연막보다 얇은 제 2 게이트 절연막;상기 제 3 게이트 전극과 상기 반도체기판 사이에 개재된 상기 제 2 게이트 절연막과 같은 두께의 제 3 게이트 절연막;상기 제 1 게이트 전극 양옆의 반도체기판에 형성되는 제 1 고농도 영역들 및 상기 제 1 고농도 영역들을 둘러싸는 제 1 저농도 영역들;상기 제 2 게이트 전극 양옆의 반도체기판에 형성되는 제 2 고농도 영역들 및 상기 제 2 고농도 영역의 상부 측면을 덮는 제 2 저농도 영역들; 및상기 제 3 게이트 전극 양옆의 반도체기판에 형성되는 제 3 고농도 영역들 및 상기 제 3 고농도 영역들을 둘러싸는 제 3 저농도 영역들을 구비하되,상기 제 1 저농도 영역 및 상기 제 1 고농도 영역은 깊이, 불순물 농도 및 포함된 불순물의 종류에서 각각 상기 제 3 저농도 영역 및 상기 제 3 고농도 영역과 동일하고,상기 제 1 저농도 영역은 상기 제 2 저농도 영역과 상이한 깊이로 형성되는 것을 특징으로 하는 반도체 장치.
- 제 17 항에 있어서,상기 제 2 저농도 영역들의 아래에 배치되어, 상기 제 2 고농도 영역의 하부 측면을 덮는 헤일로 영역들을 더 포함하는 반도체 장치.
- 반도체기판의 소정영역들에 각각 배치되는 제 1 게이트 전극, 제 2 게이트 전극 및 제 3 게이트 전극;상기 제 1 게이트 전극과 상기 반도체기판 사이에 개재된 제 1 게이트 절연막;상기 제 2 게이트 전극과 상기 반도체기판 사이에 개재된 상기 제 1 게이트 절연막보다 얇은 제 2 게이트 절연막;상기 제 3 게이트 전극과 상기 반도체기판 사이에 개재된 상기 제 2 게이트 절연막과 같은 두께의 제 3 게이트 절연막;상기 제 1 게이트 전극 양옆의 반도체기판에 형성되는 제 1 고농도 영역들 및 상기 제 1 고농도 영역들의 측면 및 하부면을 각각 덮는 제 1 저농도 영역들 및 제 1 하부 불순물 영역들;상기 제 2 게이트 전극 양옆의 반도체기판에 형성되는 제 2 고농도 영역들 및 상기 제 2 고농도 영역의 상부 측면을 덮는 제 2 저농도 영역들; 및상기 제 3 게이트 전극 양옆의 반도체기판에 형성되는 제 3 고농도 영역들 및 상기 제 3 고농도 영역들의 측면 및 하부면을 각각 덮는 제 3 저농도 영역들 및 제 3 하부 불순물 영역들을 구비하되,상기 제 1 저농도 영역, 제 1 고농도 영역 및 제 1 하부 불순물 영역은 깊이, 불순물 농도 및 포함된 불순물의 종류에서 각각 상기 제 3 저농도 영역, 제 3 고농도 영역 및 제 3 하부 불순물 영역과 동일하고,상기 제 1 저농도 영역은 상기 제 2 저농도 영역과 상이한 깊이로 형성되는 것을 특징으로 하는 반도체 장치.
- 제 19 항에 있어서,상기 제 2 저농도 영역들의 아래에 배치되어, 상기 제 2 고농도 영역의 하부 측면을 덮는 헤일로 영역들을 더 포함하는 반도체 장치.
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DE102018106266A1 (de) | 2017-06-30 | 2019-01-03 | Taiwan Semiconductor Manufacturing Co., Ltd. | Gate-struktur und verfahren zu ihrer herstellung |
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