KR100440260B1 - 반도체 소자의 비트라인 형성 방법 - Google Patents
반도체 소자의 비트라인 형성 방법 Download PDFInfo
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- KR100440260B1 KR100440260B1 KR10-2001-0081297A KR20010081297A KR100440260B1 KR 100440260 B1 KR100440260 B1 KR 100440260B1 KR 20010081297 A KR20010081297 A KR 20010081297A KR 100440260 B1 KR100440260 B1 KR 100440260B1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/48—Data lines or contacts therefor
- H10B12/482—Bit lines
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- H—ELECTRICITY
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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
- H01L21/02—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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- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
- H01L21/32125—Planarisation by chemical mechanical polishing [CMP] by simultaneously passing an electrical current, i.e. electrochemical mechanical polishing, e.g. ECMP
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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
- H01L21/70—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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
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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
- H01L21/70—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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
- H01L21/76855—After-treatment introducing at least one additional element into the layer
- H01L21/76856—After-treatment introducing at least one additional element into the layer by treatment in plasmas or gaseous environments, e.g. nitriding a refractory metal liner
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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
- H01L21/70—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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
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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
- H01L21/70—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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76897—Formation of self-aligned vias or contact plugs, i.e. involving a lithographically uncritical step
Abstract
Description
Claims (10)
- 소정영역이 형성된 반도체 기판 상부에 층간 절연막을 형성하는 단계와,상기 층간 절연막의 소정 영역을 식각하여 상기 반도체 기판의 소정 영역을 노출시키는 콘택홀을 형성하는 단계;상기 콘택홀을 포함한 전체 구조 상부에 확산 방지막을 형성하는 단계;상기 확산 방지막을 포함한 전체 구조 상부에 시드층을 형성하는 단계;상기 시드층을 형성한 반응챔버에서 상기 시드층을 포함한 전체 구조 상부에 1차 텅스텐막을 형성하는 단계;상기 반응챔버에서 상기 콘택홀 내부에만 상기 1차 텅스텐막이 잔류하도록 상기 층간 절연막 상부에 형성된 상기 1차 텅스텐막을 식각 하는 단계;상기 반응챔버에서 상기 잔류된 1차 텅스텐막을 포함한 전체 구조 상부에 2차 텅스텐막을 형성하여 상기 콘택홀을 매립시키는 단계; 및식각공정으로 상기 층간 절연막 상부에 형성된 층들을 제거하여 상기 콘택홀 내부에 플러그를 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 비트라인 형성 방법.
- 제 1 항에 있어서, 상기 확산 방지막은 Ti막 및 TiN막을 적층하여 형성하는 것을 특징으로 하는 반도체 소자의 비트라인 형성 방법.
- 제 2 항에 있어서, 상기 Ti막 및 TiN막은 IMP 또는 MOCVD 방법을 이용하여 형성하는 것을 특징으로 하는 반도체 소자의 비트라인 형성 방법.
- 제 2 항에 있어서, 상기 Ti막을 증착한 후 플라즈마 처리를 실시하고 상기 TiN막을 증착하는 것을 특징으로 하는 반도체 소자의 비트라인 형성 방법.
- 제 1 항에 있어서, 상기 시드층은상기 반응챔버를 300∼500℃의 온도와 10∼50Torr의 압력을 유지하고, 상기 반응 챔버에 SiH4가스를 1∼1000sccm의 양으로 유입시켜 50 내지 500Å의 두께로 비정질 실리콘막을 형성하는 것을 특징으로 하는 반도체 소자의 비트라인 형성 방법.
- 제 1 항에 있어서, 상기 1차 텅스텐막은상기 반응챔버를 300∼500℃의 온도와 10∼50Torr의 압력을 유지하고, 상기 반응 챔버에 SiH4가스와 WF6가스를 각각 1∼1000sccm의 양으로 유입시켜 500 내지 1500Å의 두께로 형성하는 것을 특징으로 하는 반도체 소자의 비트라인 형성 방법.
- 제 1 항에 있어서, 상기 1차 텅스텐막의 식각은상기 1차 텅스텐막이 증착되면서 상기 콘택홀의 상부 입구 부분에 발생된 오버행을 제거하기 위해 상기 반응챔버를 300∼500℃의 온도와 10∼50Torr의 압력을 유지하고, 상기 반응 챔버에 WF6가스를 1∼1000sccm의 양으로 유입시켜 수행하는 것을 특징으로 하는 반도체 소자의 비트라인 형성 방법.
- 제 1 항에 있어서, 상기 2차 텅스텐막은상기 반응챔버를 300∼500℃의 온도와 10∼50Torr의 압력을 유지하고, 상기반응 챔버에 WF6가스를 1∼1000sccm의 양으로 유입시키고, H2가스를 1∼20slm 정도 유입시켜 상기 콘택홀이 매립되도록 증착하는 것을 특징으로 하는 반도체 소자의 비트라인 형성 방법.
- (삭제)
- (삭제)
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KR10-2001-0081297A KR100440260B1 (ko) | 2001-12-19 | 2001-12-19 | 반도체 소자의 비트라인 형성 방법 |
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KR10-2001-0081297A KR100440260B1 (ko) | 2001-12-19 | 2001-12-19 | 반도체 소자의 비트라인 형성 방법 |
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KR100440260B1 true KR100440260B1 (ko) | 2004-07-15 |
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KR102291990B1 (ko) * | 2013-08-16 | 2021-08-19 | 어플라이드 머티어리얼스, 인코포레이티드 | 텅스텐 육플루오르화물(wf6) 에치백을 이용하여 텅스텐 막을 증착하기 위한 방법 |
CN105448693A (zh) * | 2014-09-30 | 2016-03-30 | 中芯国际集成电路制造(上海)有限公司 | 钨电极的形成方法 |
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