KR100400320B1 - 반도체소자의 게이트전극 형성 방법 - Google Patents
반도체소자의 게이트전극 형성 방법 Download PDFInfo
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- KR100400320B1 KR100400320B1 KR10-2001-0077408A KR20010077408A KR100400320B1 KR 100400320 B1 KR100400320 B1 KR 100400320B1 KR 20010077408 A KR20010077408 A KR 20010077408A KR 100400320 B1 KR100400320 B1 KR 100400320B1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/28247—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon passivation or protection of the electrode, e.g. using re-oxidation
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/28035—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 silicon, e.g. polysilicon, with or without impurities
- H01L21/28044—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 silicon, e.g. polysilicon, with or without impurities the conductor comprising at least another non-silicon conductive layer
- H01L21/28061—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 silicon, e.g. polysilicon, with or without impurities the conductor comprising at least another non-silicon conductive layer the conductor comprising a metal or metal silicide formed by deposition, e.g. sputter deposition, i.e. without a silicidation reaction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic System
- H01L21/2855—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic System by physical means, e.g. sputtering, evaporation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic System
- H01L21/28556—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic System by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
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Abstract
Description
Claims (17)
- 반도체 기판 상에 버퍼층, 보호막 및 희생절연막을 적층하는 공정과,게이트전극 마스크를 이용한 사진식각공정으로 상기 희생절연막 및 보호막을 식각하고 상기 희생절연막 및 보호막의 남은 부분을 마스크로 하여 상기 희생절연막 및 보호막의 식각면 하부의 반도체기판에 저농도의 불순물을 임플란트하여 저농도의 불순물 접합영역을 형성하는 공정과,상기 희생절연막 및 보호막 측벽에 절연막 스페이서를 형성하는 공정과,상기 절연막 스페이서 사이의 버퍼산화막을 제거하고 노출된 반도체기판에 게이트산화막을 형성하는 공정과,상기 절연막 스페이서 사이를 매립하는 게이트전극용 도전층을 전체표면상부에 형성하는 공정과,상기 게이트전극용 도전층을 평탄화식각하여 상기 희생절연막을 노출시키고 상기 희생절연막과 보호막을 제거하는 공정을 포함하는 반도체소자의 게이트전극 형성방법.
- 제 1 항에 있어서,상기 버퍼산화막은 열적 CVD 또는 LPCVD 방법으로 50 ∼ 200 Å 의 두께로 형성된 것을 특징으로 하는 반도체소자의 게이트전극 형성방법.
- 제 1 항에 있어서,상기 보호막은 질화막을 100 ∼ 300 Å 만큼 LPCVD 방법으로 형성하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 희생산화막은 LPCVD 방법으로 1000 ∼ 2000 Å 의 두께만큼 형성된 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 희생산화막 식각공정은 건식 플라즈마 식각 방법으로 실시하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 보호막의 식각공정은 인산을 이용하여 실시하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 저농도의 불순물 접합영역은 사입사 방법으로 회전시켜 형성하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 절연막 스페이서는 300 ∼ 700 Å 두께의 질화막으로 형성하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 8 항에 있어서,상기 절연막 스페이서는 LPCVD 방법으로 형성하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 버퍼산화막의 식각공정은 HF를 이용하여 실시하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 버퍼산화막의 식각공정은 플라즈마 방식의 소프트 식각 공정으로 실시하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 게이트 산화막의 두께는 15 ∼ 30 Å 두께인 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 게이트전극용 도전층은 CVD 방법이나 스퍼터링방법 중 어느 하나 한 가지로 형성하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 게이트전극용 도전층은 3000 ∼ 5000 Å 의 두께로 형성되는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 게이트전극용 도전층은 Al, W 또는 TiN 중에서 한가지로 형성하거나, 비정질 실리콘이나 폴리실리콘층 중에서 한가지로 형성하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 희생절연막의 제거공정은 HF를 이용한 습식식각법으로 실시하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
- 제 1 항에 있어서,상기 보호막의 제거공정은 건식 플라즈마 식각 방법으로 실시하는 것을 특징으로 하는 반도체소자의 게이트전극 형성 방법.
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KR10-2001-0077408A KR100400320B1 (ko) | 2001-12-07 | 2001-12-07 | 반도체소자의 게이트전극 형성 방법 |
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KR10-2001-0077408A KR100400320B1 (ko) | 2001-12-07 | 2001-12-07 | 반도체소자의 게이트전극 형성 방법 |
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KR20030047033A KR20030047033A (ko) | 2003-06-18 |
KR100400320B1 true KR100400320B1 (ko) | 2003-10-01 |
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