KR100332108B1 - 반도체 소자의 트랜지스터 및 그 제조 방법 - Google Patents
반도체 소자의 트랜지스터 및 그 제조 방법 Download PDFInfo
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- KR100332108B1 KR100332108B1 KR1019990025434A KR19990025434A KR100332108B1 KR 100332108 B1 KR100332108 B1 KR 100332108B1 KR 1019990025434 A KR1019990025434 A KR 1019990025434A KR 19990025434 A KR19990025434 A KR 19990025434A KR 100332108 B1 KR100332108 B1 KR 100332108B1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/027—Manufacture or treatment of FETs having insulated gates [IGFET] of lateral single-gate IGFETs
- H10D30/0278—Manufacture or treatment of FETs having insulated gates [IGFET] of lateral single-gate IGFETs forming single crystalline channels on wafers after forming insulating device isolations
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/751—Insulated-gate field-effect transistors [IGFET] having composition variations in the channel regions
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/01—Manufacture or treatment
- H10D62/021—Forming source or drain recesses by etching e.g. recessing by etching and then refilling
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/01—Manufacture or treatment
- H10D64/017—Manufacture or treatment using dummy gates in processes wherein at least parts of the final gates are self-aligned to the dummy gates, i.e. replacement gate processes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/0212—Manufacture or treatment of FETs having insulated gates [IGFET] using self-aligned silicidation
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Abstract
Description
Claims (23)
- 실리콘 기판에 소자 분리막을 형성한 후, 웰을 형성하는 단계;1차 세정 공정을 실시한 후, 선택적 에피 실리콘 성장 공정으로 제 1 Si층, SiGe층 및 제 2 Si층을 순차적으로 형성하고, 문턱 전압 조절을 위한 이온 주입 공정을 진행하는 단계;상기 제 2 Si층의 표면에 게이트 산화막을 형성하고, 상기 게이트 산화막상에 게이트 폴리실리콘층 패턴을 형성하는 단계;상기 게이트 폴리실리콘층 패턴의 양측에 게이트 스페이서를 형성한 후, 습식 실리콘 디핑 공정으로 게이트 폴리실리콘층 패턴을 식각하여 잔류 게이트 폴리실리콘층 패턴을 형성하는 단계;2차 세정 공정을 실시한 후, 선택적 SiGe 성장 공정을 실시하여 상기 SiGe층의 노출 부위에 에피-SiGe층을, 상기 잔류 게이트 폴리실리콘층 패턴의 노출 부위에 폴리-SiGe층을 동시에 형성하는 단계;소오스/드레인 형성 및 게이트 도핑을 위해 이온주입을 실시한 후, 웨이퍼 전면에 걸쳐 Ti층을 증착하고, 1차 열처리후에 미반응 Ti층을 제거하고, 2차 열처리하여 상기 에피-SiGe층 및 폴리-SiGe층의 노출된 부위에 TiSi2층을 형성하고, 이로인하여 게이트 전극, 엘리베이티드 채널 및 버리드/엘리베이티드 접합부가 완성되는 단계를 포함하여 이루어지는 것을 특징으로 하는 반도체 소자의 트랜지스터제조 방법.
- 제 1 항에 있어서,상기 웰은 1E13 내지 3E13ions/㎤의 도우즈로 포스포러스(P)를 800 내지 1200KeV의 에너지로 이온 주입한 후에, 반응로에서 약 950℃의 온도에서 30분 정도 열처리하여 도판트를 활성화시켜 형성하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 선택적 에피 실리콘 성장 공정은 고진공화학기상증착법이나 저압화학기상증착법으로 실시하여 상기 제 1 Si층, SiGe층 및 제 2 Si층 각각을 50 내지 150Å의 두께로 형성되도록 하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항 또는 제 3 항에 있어서,상기 제 1 Si층 및 제 2 Si층은 상기 선택적 에피 실리콘 성장 공정을 저압화학기상증착법으로 하여 형성할 경우, 그 증착 조건으로 증착 가스는 DCS와 HCl을사용하고, 증착시 DCS는 30 내지 300 sccm을 , HCl은 30 내지 200 sccm으로 하며, 이때의 증착 압력은 10 내지 50 torr 정도로 하며, 증착 온도는 750 내지 950℃로 하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항 또는 제 3 항에 있어서,상기 제 1 Si층 및 제 2 Si층은 상기 선택적 에피 실리콘 성장 공정을 고진공화학기상증착법으로 하여 형성할 경우, 증착 가스는 SiH4나 Si2H6를 사용하며, 증착 압력은 1 torr 미만으로 하며, 증착 온도는 600 내지 750℃로 하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항 또는 제 3 항에 있어서,상기 SiGe층은 상기 선택적 에피 실리콘 성장 공정을 저압화학기상증착법으로 하여 형성할 경우, 그 증착 조건으로 증착 가스는 DCS와 HCl을 사용하고, 증착시 DCS는 30 내지 300 sccm을 , HCl은 30 내지 200 sccm으로 하며, Ge 도핑을 위해 GeH4를 30 내지 300sccm정도 함께 넣어주며, 이때의 증착 압력은 10 내지 50 torr 정도로 하며, 증착 온도는 750 내지 950℃로 하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항 또는 제 3 항에 있어서,상기 SiGe층은 상기 선택적 에피 실리콘 성장 공정을 고진공화학기상증착법으로 하여 형성할 경우, 증착 가스는 SiH4나 Si2H6를 사용하며, Ge 도핑을 위해 GeH4를 30 내지 300sccm정도 함께 넣어주며, 증착 압력은 1 torr 미만으로 하며, 증착 온도는 600 내지 750℃로 하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,문턱 전압 조절을 위한 이온 주입 공정은 1E11 내지 5E12ions/㎤의 도우즈로 포스포러스(P) 혹은 아세닉(As)을 50 내지 150KeV의 에너지로 하여 실시하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 게이트 폴리실리콘층 패턴은 게이트 폴리실리콘층을 500 내지 2000Å의 두께로 증착한 후, 건식 식각공정에 의해 형성하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 게이트 스페이서는 질화막을 200 내지 800Å의 두께로 증착한 후, 전면 건식 식각 공정을 통해 형성하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 습식 실리콘 디핑 공정은 초산, 질산, 불산의 혼합 용액으로 이루어진 식각 용액을 사용하며, 그 조성비는 상기 제 2 Si층식각에 대한 게이트 폴리실리콘층의 비율이 약 1 : 1.5 정도가 되도록 선택하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 습식 실리콘 디핑 공정은 상기 게이트 폴리실리콘층 패턴이 500 내지 800Å정도 식각되도록 설정하여, 식각후 잔류하는 상기 잔류 게이트 폴리실리콘층 패턴이 50 내지 200Å정도가 되도록 조절하며, 이때, 상기 제 2 Si층의 노출된 부위는 제거되고, 하부층인 상기 SiGe층은 식각 스톱층 역할을 하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 1차 및 2차 세정 공정은 익스-시튜 세정 공정과 에피 실리콘 장비 내에서 진행하는 인-시튜 세정 공정으로 실시하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 13 항에 있어서,상기 익스-시튜 세정 공정은 RCA 클리닝이나 UV 오존 클리닝과 HF 딥핑의 혼합으로 실시하고, 상기 인-시튜 세정은 상기 에피 실리콘층을 형성하기 전에 1 내지 5분 동안 800 내지 900℃의 하이드로겐 베이크를 실시하여 산화막 생성을 방지하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 선택적 SiGe 성장 공정은 고진공화학기상증착법이나 저압화학기상증착법으로 실시하여 상기 에피-SiGe층 및 폴리-SiGe층이 500 내지 1000Å의 두께로 형성되도록 하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항 또는 제 15 항에 있어서,상기 에피-SiGe층 및 폴리-SiGe층은 상기 선택적 SiGe 성장 공정을 저압화학기상증착법으로 하여 형성할 경우, 그 증착 조건으로 증착 가스는 DCS와 HCl을 사용하고, 증착시 DCS는 30 내지 300 sccm을 , HCl은 30 내지 200 sccm으로 하며, Ge 도핑을 위해 GeH4를 30 내지 300sccm정도 함께 넣어주며, 이때의 증착 압력은 10 내지 50 torr 정도로 하며, 증착 온도는 750 내지 950℃로 하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항 또는 제 15 항에 있어서,상기 에피-SiGe층 및 폴리-SiGe층은 상기 선택적 SiGe 성장 공정을 고진공화학기상증착법으로 하여 형성할 경우, 증착 가스는 SiH4나 Si2H6를 사용하며, Ge 도핑을 위해 GeH4를 30 내지 300sccm정도 함께 넣어주며, 증착 압력은 1 torr 미만으로 하며, 증착 온도는 600 내지 750℃로 하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 버리드/엘리베이티드 접합부는 상기 제 1 Si층, SiGe층, 에피-SiGe층 및 TiSi2층이 적층된 구조를 갖는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 엘리베이티드 채널은 상기 제 1 Si층, SiGe층 및 제 2 Si층이 적층된 구조를 갖는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 게이트 전극은 상기 잔류 게이트 폴리실리콘층 패턴, 폴리-SiGe층 및 TiSi2층이 적층된 구조를 갖는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 소오스/드레인 형성 및 게이트 도핑을 위한 이온주입은 1E15 내지 1E16ions/㎤의 도우즈로 BF2이온을 10 내지 40KeV의 에너지로 주입하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 TiSi2층은 상기 Ti층을 100 내지 300Å의 두께로 증착한 후, 500 내지 700℃의 온도에서 1차로 급속 열처리하고, SC-1 와 같은 습식 식각 용액을 사용하여 반응하지 않은 Ti층을 제거한 후, 750 내지 850℃의 온도에서 2차로 급속 열처리하여 형성하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 소자 분리막 및 웰이 형성된 실리콘 기판;상기 실리콘 기판의 일부분상에 제 1 Si층, SiGe층 및 제 2 Si층이 적층되어 형성된 엘리베이티드 채널;상기 채널상에 폴리실리콘층, 폴리-SiGe층 및 TiSi2층이 적층되어 형성되며, 게이트 산화막에 의해 상기 채널과 전기적으로 분리된 게이트 전극; 및상기 게이트 전극의 양측에 제 1 Si층, SiGe층, 에피-SiGe층 및 TiSi2층이 적층되어 형성되며, 게이트 스페이서에 의해 상기 게이트 전극과 전기적으로 분리된 버리드/엘리베이티드 접합부를 포함하여 구성된 것을 특징으로 하는 반도체 소자의 트랜지스터.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990025434A KR100332108B1 (ko) | 1999-06-29 | 1999-06-29 | 반도체 소자의 트랜지스터 및 그 제조 방법 |
| JP2000194453A JP4992011B2 (ja) | 1999-06-29 | 2000-06-28 | 半導体素子のトランジスタの製造方法 |
| TW089112806A TW448512B (en) | 1999-06-29 | 2000-06-29 | Transistor in a semiconductor device and method of manufacturing the same |
| US09/607,106 US6406973B1 (en) | 1999-06-29 | 2000-06-29 | Transistor in a semiconductor device and method of manufacturing the same |
| US10/044,965 US6707062B2 (en) | 1999-06-29 | 2002-01-15 | Transistor in a semiconductor device with an elevated channel and a source drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990025434A KR100332108B1 (ko) | 1999-06-29 | 1999-06-29 | 반도체 소자의 트랜지스터 및 그 제조 방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010004720A KR20010004720A (ko) | 2001-01-15 |
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-
2000
- 2000-06-28 JP JP2000194453A patent/JP4992011B2/ja not_active Expired - Fee Related
- 2000-06-29 TW TW089112806A patent/TW448512B/zh not_active IP Right Cessation
- 2000-06-29 US US09/607,106 patent/US6406973B1/en not_active Expired - Fee Related
-
2002
- 2002-01-15 US US10/044,965 patent/US6707062B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7683405B2 (en) | 2003-07-07 | 2010-03-23 | Samsung Electronics Co., Ltd. | MOS transistors having recesses with elevated source/drain regions |
| US8039350B2 (en) | 2003-07-07 | 2011-10-18 | Samsung Electronics Co., Ltd. | Methods of fabricating MOS transistors having recesses with elevated source/drain regions |
| US8304318B2 (en) | 2003-07-07 | 2012-11-06 | Samsung Electronics Co., Ltd. | Methods of fabricating MOS transistors having recesses with elevated source/drain regions |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001057429A (ja) | 2001-02-27 |
| US6707062B2 (en) | 2004-03-16 |
| US6406973B1 (en) | 2002-06-18 |
| TW448512B (en) | 2001-08-01 |
| US20020089003A1 (en) | 2002-07-11 |
| KR20010004720A (ko) | 2001-01-15 |
| JP4992011B2 (ja) | 2012-08-08 |
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