WO2007124197A3 - Method for forming silicon oxynitride materials - Google Patents

Method for forming silicon oxynitride materials Download PDF

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Publication number
WO2007124197A3
WO2007124197A3 PCT/US2007/061832 US2007061832W WO2007124197A3 WO 2007124197 A3 WO2007124197 A3 WO 2007124197A3 US 2007061832 W US2007061832 W US 2007061832W WO 2007124197 A3 WO2007124197 A3 WO 2007124197A3
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
exposing
silicon oxynitride
during
native oxide
Prior art date
Application number
PCT/US2007/061832
Other languages
French (fr)
Other versions
WO2007124197A2 (en
Inventor
Thai Cheng Chua
Original Assignee
Applied Materials Inc
Thai Cheng Chua
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/367,882 external-priority patent/US7964514B2/en
Application filed by Applied Materials Inc, Thai Cheng Chua filed Critical Applied Materials Inc
Publication of WO2007124197A2 publication Critical patent/WO2007124197A2/en
Publication of WO2007124197A3 publication Critical patent/WO2007124197A3/en

Links

Classifications

    • 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
    • H01L21/02104—Forming layers
    • H01L21/02107—Forming insulating materials on a substrate
    • H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
    • H01L21/02318—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment
    • H01L21/02321—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment introduction of substances into an already existing insulating layer
    • H01L21/02329—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment introduction of substances into an already existing insulating layer introduction of nitrogen
    • H01L21/02332—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment introduction of substances into an already existing insulating layer introduction of nitrogen into an oxide layer, e.g. changing SiO to SiON
    • 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
    • H01L21/02104—Forming layers
    • H01L21/02107—Forming insulating materials on a substrate
    • H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
    • H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
    • H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
    • H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
    • H01L21/0214—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC the material being a silicon oxynitride, e.g. SiON or SiON:H
    • 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
    • H01L21/02104—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
    • H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
    • H01L21/0223—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate
    • H01L21/02233—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer
    • H01L21/02236—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor
    • H01L21/02238—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor silicon in uncombined form, i.e. pure silicon
    • 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
    • H01L21/02104—Forming layers
    • H01L21/02107—Forming insulating materials on a substrate
    • H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
    • H01L21/02299—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer pre-treatment
    • H01L21/02301—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer pre-treatment in-situ cleaning
    • 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
    • H01L21/02104—Forming layers
    • H01L21/02107—Forming insulating materials on a substrate
    • H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
    • H01L21/02318—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment
    • H01L21/02337—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to a gas or vapour
    • H01L21/0234—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to a gas or vapour treatment by exposure to a plasma
    • 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
    • H01L21/28158—Making the insulator
    • H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
    • H01L21/28202—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation in a nitrogen-containing ambient, e.g. nitride deposition, growth, oxynitridation, NH3 nitridation, N2O oxidation, thermal nitridation, RTN, plasma nitridation, RPN

Abstract

Embodiments of the invention provide methods for forming silicon oxynitride materials on a substrate. In one embodiment, a method for forming a dielectric material on a substrate is provided which includes positioning a substrate containing a native oxide surface within a processing system containing a plurality of process chambers, and removing the native oxide surface to form a substrate surface free or substantially free of native oxide during a cleaning process. In one example, the method further provides exposing the substrate to a first nitrogen-containing plasma to form a silicon nitride layer from the substrate surface during a first nitridation process, exposing the substrate to an oxygen source to form a silicon oxynitride layer from the silicon nitride layer during a thermal oxidation process, exposing the substrate to a second nitrogen-containing plasma during a second nitridation process, and exposing the substrate to an annealing process.
PCT/US2007/061832 2006-03-02 2007-02-08 Method for forming silicon oxynitride materials WO2007124197A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/367,882 US7964514B2 (en) 2006-03-02 2006-03-02 Multiple nitrogen plasma treatments for thin SiON dielectrics
US11/367,882 2006-03-02
US11/456,531 2006-07-10
US11/456,531 US20070207628A1 (en) 2006-03-02 2006-07-10 Method for forming silicon oxynitride materials

Publications (2)

Publication Number Publication Date
WO2007124197A2 WO2007124197A2 (en) 2007-11-01
WO2007124197A3 true WO2007124197A3 (en) 2008-01-24

Family

ID=38625684

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/061832 WO2007124197A2 (en) 2006-03-02 2007-02-08 Method for forming silicon oxynitride materials

Country Status (1)

Country Link
WO (1) WO2007124197A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6077737A (en) * 1998-06-02 2000-06-20 Mosel Vitelic, Inc. Method for forming a DRAM having improved capacitor dielectric layers
US20030235968A1 (en) * 2002-06-21 2003-12-25 Hoon-Jung Oh Capacitor with oxidation barrier layer and method for manufacturing the same
US20030234417A1 (en) * 2002-03-05 2003-12-25 Ivo Raaijmakers Dielectric layers and methods of forming the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6077737A (en) * 1998-06-02 2000-06-20 Mosel Vitelic, Inc. Method for forming a DRAM having improved capacitor dielectric layers
US20030234417A1 (en) * 2002-03-05 2003-12-25 Ivo Raaijmakers Dielectric layers and methods of forming the same
US20030235968A1 (en) * 2002-06-21 2003-12-25 Hoon-Jung Oh Capacitor with oxidation barrier layer and method for manufacturing the same

Also Published As

Publication number Publication date
WO2007124197A2 (en) 2007-11-01

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