WO2010067856A1 - 成膜方法および成膜装置、ならびに記憶媒体 - Google Patents
成膜方法および成膜装置、ならびに記憶媒体 Download PDFInfo
- Publication number
- WO2010067856A1 WO2010067856A1 PCT/JP2009/070724 JP2009070724W WO2010067856A1 WO 2010067856 A1 WO2010067856 A1 WO 2010067856A1 JP 2009070724 W JP2009070724 W JP 2009070724W WO 2010067856 A1 WO2010067856 A1 WO 2010067856A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- substrate
- film
- processed
- chamber
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 87
- 238000003860 storage Methods 0.000 title claims description 16
- 239000000758 substrate Substances 0.000 claims abstract description 115
- 239000000460 chlorine Substances 0.000 claims abstract description 95
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 83
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 82
- 238000006243 chemical reaction Methods 0.000 claims abstract description 80
- 239000002243 precursor Substances 0.000 claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 590
- 230000007246 mechanism Effects 0.000 claims description 49
- 238000000151 deposition Methods 0.000 claims description 34
- 229910008484 TiSi Inorganic materials 0.000 claims description 24
- 230000008021 deposition Effects 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 description 309
- 235000012431 wafers Nutrition 0.000 description 92
- 238000005755 formation reaction Methods 0.000 description 31
- 230000015572 biosynthetic process Effects 0.000 description 30
- 238000009792 diffusion process Methods 0.000 description 29
- 239000012159 carrier gas Substances 0.000 description 25
- 239000012528 membrane Substances 0.000 description 20
- 238000005121 nitriding Methods 0.000 description 15
- 230000006378 damage Effects 0.000 description 10
- 239000011229 interlayer Substances 0.000 description 9
- 230000002265 prevention Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005530 etching Methods 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- -1 TiCl 4 Chemical compound 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000003077 quantum chemistry computational method Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910021341 titanium silicide Inorganic materials 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
Images
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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table 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 Table
- 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 Table by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/448—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
- C23C16/4488—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by in situ generation of reactive gas by chemical or electrochemical reaction
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/4557—Heated nozzles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/505—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges
- C23C16/509—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges using internal electrodes
- C23C16/5096—Flat-bed apparatus
-
- 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
-
- 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
- H01L21/76865—Selective removal of parts of the layer
-
- 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 potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table 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 Table
- H01L21/28518—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 Table the conductive layers comprising silicides
Definitions
- the present invention relates to a film forming method and film forming apparatus for forming a titanium (Ti) film or a titanium silicide (TiSi x ) film on a surface of a substrate to be processed disposed in a chamber by CVD, and such a film forming method.
- the present invention relates to a storage medium storing a program for executing the above.
- the circuit configuration tends to have a multilayer wiring structure in response to the recent demand for higher density and higher integration. For this reason, the connection between the lower Si substrate and the upper wiring layer is required.
- a metal wiring such as a W film used for embedding such contact holes, trenches and via holes and the underlying Si substrate
- the contact holes and via holes are placed inside the contact holes and via holes prior to these embeddings.
- a Ti film is formed.
- a TiSi film is formed by a reaction between Ti and underlying Si, and then a TiN film is formed as a barrier film.
- Such a Ti film has been conventionally formed by physical vapor deposition (PVD).
- PVD physical vapor deposition
- steps coverage steps coverage
- CVD chemical vapor deposition
- TiCl 4 gas, H 2 gas, and Ar gas are used as film forming gases, these are introduced into the chamber through a shower head, and the semiconductor wafer is heated by a stage heater while being parallel plate
- a technique for forming a Ti film by plasma CVD in which high-frequency power is applied to an electrode, the gas is turned into plasma, and TiCl 4 gas and H 2 gas are reacted (for example, Japanese Patent Application Laid-Open No. 2004-197219).
- the present invention intends to provide a film forming method and a film forming apparatus capable of forming a Ti film or a TiSi x film by CVD without causing plasma damage to a substrate to be processed. is there.
- the present invention also intends to provide a storage medium storing a program for executing such a method.
- the step of disposing the substrate to be processed in the chamber, and the step of supplying the processing gas containing the chlorine-containing gas through the supply path into the chamber in which the substrate to be processed is disposed.
- a gas containing TiCl 4 gas is supplied to a gas introduction mechanism for introducing a processing gas into the chamber without placing a substrate to be processed in the chamber, and the gas A step of forming a Ti film in the introduction mechanism, a step of carrying a substrate to be processed into the chamber, a step of introducing a processing gas containing a chlorine-containing gas into the chamber via the gas introduction mechanism, and the processing A step of bringing a chlorine-containing gas in the processing gas into contact with the Ti film to introduce a gas into the chamber and reacting the chlorine-containing gas with Ti in the Ti film; Supplying a Ti precursor gas generated by the reaction between the chlorine-containing gas and Ti of the Ti film onto the substrate to be processed while heating the substrate, and depositing Ti on the surface of the substrate to be processed by a thermal reaction; Have A film forming method is provided.
- a chamber for accommodating a substrate to be processed, a mounting table for mounting the substrate to be processed in the chamber, and a first heater for heating the substrate to be processed on the mounting table.
- a gas introduction mechanism for introducing a processing gas into the chamber from a gas supply source through a gas pipe, a Ti-containing portion containing Ti provided in the processing gas supply path, and heating the Ti-containing portion
- a film forming apparatus comprising: a possible second heater; an exhaust means for exhausting the inside of the chamber; and a control unit for controlling processing in the chamber, wherein the control unit is placed in the chamber.
- a processing substrate is carried in and placed on the mounting table, a processing gas containing a chlorine-containing gas is introduced into the chamber via the gas pipe and a gas introduction mechanism, and the processing gas is introduced into the chamber.
- the chlorine-containing gas in the processing gas is brought into contact with the Ti-containing portion and heated by the second heater to cause the chlorine-containing gas to react with Ti in the Ti-containing portion.
- the Ti precursor gas generated by the reaction between the chlorine-containing gas and Ti in the Ti-containing portion is supplied onto the substrate to be processed, and the substrate is subjected to thermal reaction.
- a film forming apparatus for depositing Ti on the surface of a processing substrate is provided.
- a chamber for accommodating a substrate to be processed, a mounting table for mounting the substrate to be processed in the chamber, and a first heater for heating the substrate to be processed on the mounting table.
- a gas introduction mechanism that introduces a processing gas into the chamber from a gas supply source through a gas pipe, a second heater that heats the gas introduction mechanism, and a plasma generation mechanism that generates plasma of the processing gas
- a film forming apparatus comprising an exhaust means for exhausting the inside of the chamber and a control unit for controlling processing in the chamber, wherein the control unit does not place a substrate to be processed in the chamber.
- a gas containing TiCl 4 gas is supplied to the gas introduction mechanism, a Ti film is formed in the gas introduction mechanism, a substrate to be processed is carried into the chamber, and the substrate is placed on the mounting table.
- a processing gas containing a gas is introduced into the chamber through the gas pipe and a gas introduction mechanism, and when the processing gas is introduced into the chamber, a chlorine-containing gas in the processing gas is applied to the Ti film.
- the chlorine-containing gas and Ti of the Ti film are reacted by being brought into contact and heated by the second heater, and the substrate containing the chlorine is heated while the substrate to be processed on the mounting table is heated by the first heater.
- a film forming apparatus for supplying a Ti precursor gas generated by a reaction between a gas and Ti of the Ti film onto a substrate to be processed, and depositing Ti on the surface of the substrate to be processed by a thermal reaction.
- a storage medium that operates on a computer and stores a program for controlling the film forming apparatus.
- the program stores a substrate to be processed in the chamber at the time of execution.
- a step of arranging, a step of supplying a processing gas containing a chlorine-containing gas through the supply path into the chamber in which the substrate to be processed is arranged, and a Ti-containing portion containing Ti in the supply path of the processing gas And, when supplying the processing gas to the chamber, bringing the chlorine-containing gas in the processing gas into contact with the Ti-containing portion and reacting the chlorine-containing gas with Ti in the Ti-containing portion; While heating the substrate to be processed in the chamber, a Ti precursor gas generated by the reaction between the chlorine-containing gas and Ti in the Ti-containing portion is supplied onto the substrate to be processed, and is applied to the surface of the substrate to be processed by a thermal reaction.
- the film forming method of the Ti film and a step of depositing a i is performed, thereby controlling the film forming
- a storage medium that operates on a computer and stores a program for controlling the film forming apparatus, and the program stores a substrate to be processed in the chamber at the time of execution.
- a process including supplying a gas containing TiCl 4 gas to a gas introduction mechanism for introducing a processing gas into the chamber without being disposed, and forming a Ti film in the gas introduction mechanism; and a substrate to be processed in the chamber , A step of introducing a processing gas containing a chlorine-containing gas into the chamber via the gas introduction mechanism, and a chlorine-containing content in the processing gas when the processing gas is introduced into the chamber.
- the film forming method includes a step of supplying a Ti precursor gas generated by the reaction with Ti onto the substrate to be processed and depositing Ti on the surface of the substrate to be processed by a thermal reaction.
- a storage medium is provided for controlling the membrane device.
- the present inventors have a Ti-containing portion present in the gas supply path into the chamber, and a chlorine-containing gas such as TiCl 4 gas is present in the gas supply path.
- a chlorine-containing gas such as TiCl 4 gas is present in the gas supply path.
- Ti reacts with the chlorine-containing gas to generate a Ti precursor gas such as TiCl 3 gas or TiCl 2 gas, and the Ti precursor gas is thermally reacted regardless of plasma. It was found that Ti was produced by the above.
- the present invention having the above-described configuration has been completed based on such knowledge of the present inventors.
- the flowchart which shows the film-forming method of Ti film
- FIG. 4 is a cross-sectional view schematically showing a state where a contact layer is formed at the bottom of the contact hole of the wafer of FIG. 3. It is a figure which shows typically the condition at the time of forming Ti film
- FIG. 12 is a flowchart for explaining a specific embodiment of a Ti film forming method performed in the film forming apparatus of FIG. 11. It is sectional drawing which shows the state which formed Ti film
- 12 is a flowchart for explaining a specific embodiment of a Ti film forming method performed in the film forming apparatus of FIG. 11.
- 12 is a flowchart for explaining a specific embodiment of a Ti film forming method performed in the film forming apparatus of FIG. 11.
- 12 is a flowchart for explaining a specific embodiment of a Ti film forming method performed in the film forming apparatus of FIG. 11.
- 12 is a flowchart for explaining a specific embodiment of a Ti film forming method performed in the film forming apparatus of FIG. 11.
- 12 is a flowchart for explaining a specific embodiment of a Ti film forming method performed in the film forming apparatus of FIG. 11.
- 12 is a flowchart for explaining a specific embodiment of a Ti film forming method performed in the film forming apparatus of FIG. 11. It is sectional drawing which shows the method of forming Ti film
- the unit of the gas flow rate is mL / min.
- the value converted into the standard state is used in the present invention.
- the flow volume converted into the standard state is normally indicated by sccm (Standard Cubic Centimeter per Minutes), sccm is also written together.
- the standard state here is a state where the temperature is 0 ° C. (273.15 K) and the atmospheric pressure is 1 atm (101325 Pa).
- FIG. 1 is a flowchart showing a film forming method according to the present invention
- FIGS. 2A to 2C are conceptual diagrams for explaining the principle of the film forming method according to the present invention.
- a processing gas containing a chlorine-containing gas for example, TiCl 4 , is supplied into the chamber 1 through the supply path 3 while evacuating the chamber 1 and maintaining a vacuum (step 2). .
- a processing gas containing a chlorine-containing gas for example, TiCl 4
- the supply path 3 is provided with a Ti-containing part 2 containing Ti, and a chlorine-containing gas (TiCl 4 gas) flowing through the supply path 3 is brought into contact with the Ti-containing part 2 so that the Ti-containing part 2 React with Ti (step 3). That is, Ti in the Ti-containing portion 2 is etched by the chlorine-containing gas.
- a chlorine-containing gas TiCl 4 gas
- chlorine-containing gas in addition to TiCl 4 gas, Cl 2 gas and HCl gas can be used. However, it is preferable to use TiCl 4 which has been conventionally used as a Ti film forming material.
- a Ti precursor (precursor) gas generated by the reaction between the chlorine-containing gas in step 3 and Ti in the Ti-containing portion 2 is supplied onto the wafer W heated to a predetermined temperature, Ti is generated by the reaction, and Ti is deposited on the wafer W (step 4).
- the deposited Ti becomes a Ti film as it is, or the base is Si (Si substrate or polysilicon), and becomes a TiSi film by reaction with Si under predetermined conditions.
- the reaction between the chlorine-containing gas and Ti can occur in the range of 200 to 800 ° C. From the viewpoint of effectively producing the reaction, the temperature at this time is more preferably 250 ° C. or higher, and from the viewpoint of reaction speed, it is preferably 600 ° C. or lower.
- Ti precursor gas generated by the reaction between the chlorine-containing gas and Ti examples include TiCl 3 gas and TiCl 2 gas.
- TiCl 3 gas can be generated as the Ti precursor gas by the following equation (1). Ti + 3TiCl 4 ⁇ 4TiCl 3 (1)
- TiCl 2 gas as a Ti precursor gas by the following equation (2). Ti + TiCl 4 ⁇ 2TiCl 2 (2)
- FIG. 3 is a diagram showing a vapor pressure curve of Ti chloride. It is as shown in the figure, as the coordination number of Cl is less low vapor pressure, hence more of TiCl 3 is higher vapor pressure than TiCl 2, the vapor pressure of the TiCl 3 is a conventional CVD-Ti film forming It is about the same as TiCl 4 partial pressure at the time.
- the melting point of TiCl 2 is 1035 ° C., whereas that of TiCl 3 is 425 ° C., and TiCl 3 has a lower melting point. Therefore, TiCl 3 is more preferable than TiCl 3 because TiCl 3 is more easily gasified than TiCl 2 and has an advantage of being easily supplied to the wafer W in a gas phase.
- the TiCl 3 production reaction of the formula (1) is preferably caused to occur in the range of 425 to 500 ° C. As shown in the following (3) exceeds 500 ° C., since TiCl 3 ends up thermally decomposed into TiCl 2 and TiCl 4, TiCl 3 gas is lower than the melting point of TiCl 3 is less likely to occur is less than 425 ° C. is there. 2TiCl 3 ⁇ TiCl 2 + TiCl 4 (3) The temperature dependence of the TiCl 3 production reaction is as shown in FIG.
- the reaction temperature can be ensured by, for example, heating the Ti-containing portion 2 and controlling the temperature to a desired reaction temperature.
- TiCl 2 can be generated as a Ti precursor according to the above formula (2).
- the above equation (2) is a combined reaction of the above equations (1) and (3). Specifically, this is a reaction in which TiCl 3 generated by the reaction between TiCl 4 and Ti becomes TiCl 2 by thermal decomposition.
- the temperature of the wafer W can be in the range of 200 to 800 ° C., preferably 350 to 700 ° C.
- TiCl 2 is preferably adsorbed on the wafer W.
- TiCl 3 is hardly adsorbed on Si, and since hardly Cl is eliminated, but it is difficult to produce an Ti by thermal decomposition by adsorbing TiCl 3 directly to the wafer W, TiCl 2 on quantum chemical calculation, TiCl This is because it is easier to adsorb to Si than 3, and the coordination number of Cl is smaller, so that the desorption of Cl becomes easier.
- TiCl 2 has an advantage that it can easily react with Si and generate TiSi x more easily than TiCl 3 .
- the temperature of the wafer W when Ti is generated is preferably over 500 ° C. at which TiCl 3 is decomposed to become TiCl 2 . That is, when the temperature exceeds 500 ° C., even when TiCl 3 gas is supplied onto the wafer W, decomposition of TiCl 3 occurs and TiCl 2 is adsorbed.
- TiCl 2 gas is supplied, TiCl 2 gas is adsorbed as it is. More preferably, it is over 500 ° C. to 650 ° C.
- Figure 5 is a diagram showing the temperature dependence of the film thickness of the TiSi 2 film when the deposition of the Ti on the Si portion of the wafer. As shown in this figure, it can be seen that the thickness of the TiSi 2 film rapidly decreases when the wafer temperature is around 500 ° C. or lower. Conversely, when the temperature exceeds 600 ° C., the film thickness increases.
- TiCl 4 was used as a film forming material.
- TiCl 4 has a high binding energy of 17.32 eV, and plasma is required to generate Ti by decomposing it. there were.
- the absolute value of TiCl 3 or TiCl 2 binding energy is less than the absolute value of the binding energy of TiCl 4, since it is 9.42eV at TiCl 2, which is necessary to the TiCl 4 and precursor Ti can be generated by thermal reaction without using plasma. Therefore, a Ti film or a TiSi x film can be formed without causing plasma damage to the wafer W.
- the processing gas supplied into the chamber 1 may be a chlorine-containing gas alone, or may be a gas to which another gas such as a gas for promoting the reaction or a carrier gas is added.
- a gas for promoting the reaction or a carrier gas is added.
- H 2 gas may be added as a reaction promoting gas
- an inert gas such as Ar gas may be added as a carrier gas
- a TiCl 4 gas may be added to both of the H 2 gas and the carrier gas.
- H 2 gas Cl of TiCl 2 adsorbed on the wafer W can be desorbed with lower energy, and the film formation of the Ti film is promoted.
- H 2 gas TiCl 2 H x is generated, whereby the absolute value of the binding energy can be made smaller than that of TiCl 2, and the film formation of the Ti film is promoted with low energy.
- the Ti-containing portion 2 may be disposed at any position in the supply path 3 as long as a Ti precursor gas such as TiCl 3 gas or TiCl 2 gas is generated by contact with a chlorine-containing gas such as TiCl 4 gas. Good.
- a Ti precursor gas such as TiCl 3 gas or TiCl 2 gas is generated by contact with a chlorine-containing gas such as TiCl 4 gas.
- it can be arranged in a piping for supplying a chlorine-containing gas or a gas introduction mechanism for introducing the chlorine-containing gas into the chamber 1, for example, a shower head.
- the form of the Ti-containing portion 2 may be a film shape or a bulk shape.
- the Ti-containing portion 2 is typically composed of Ti alone, but as long as Ti precursor gas such as TiCl 3 gas or TiCl 2 gas is generated, it is composed of a mixture or compound with other substances. Also good.
- an interlayer insulating film 11 is formed on the Si substrate 10, and a contact hole 12 reaching the impurity diffusion region 10 a of the Si substrate 10 is formed in the interlayer insulating film 11.
- Ti film 13 By forming the Ti film 13 on the wafer W having such a structure, as shown in FIG. 7, Ti and the underlying Si react at the bottom of the contact hole 12 to form a contact made of TiSi x , for example, TiSi 2.
- Layer 14 is formed.
- the film to be formed is not a TiSi x film but a Ti film
- the film was formed from the viewpoint of preventing oxidation of the Ti film and preventing film peeling after the film formation, as in the conventional Ti film forming process.
- Nitriding treatment may be performed on the Ti film.
- the Ti film on the side wall of the contact hole tends to be thin, and depending on the conditions, the Ti film may not be formed on the side wall of the contact hole as shown in FIG. is there.
- the Ti film 13 on the upper surface of the interlayer insulating film 11 and the contact layer 14 made of the TiSi x film at the bottom of the contact hole 12 are insulated, electrons do not enter the contact hole 12, There is a possibility that the charge of ions in the plasma accumulates at the bottom of the contact hole 12 and the device is destroyed due to the electron shading effect (plasma damage).
- the Ti film 13 is formed on the side wall of the contact hole 12 as shown in FIG. Therefore, the Ti film 13 on the upper surface of the interlayer insulating film 11 is electrically connected to the contact layer 14 made of the TiSi x film at the bottom of the contact hole 12. For this reason, even if plasma is subsequently generated, electrons flow to the bottom of the contact hole 12 and the charge of ions in that portion disappears, so that plasma damage hardly occurs.
- FIG. 11 is a cross-sectional view showing a schematic configuration of a film forming apparatus used in a specific embodiment of the present invention.
- the film forming apparatus 100 has a substantially cylindrical chamber 21. Inside the chamber 21, a susceptor 22 made of AlN, which is a mounting table (stage) for horizontally supporting the Si wafer W, which is a substrate to be processed, is provided in a cylindrical support member 23 provided at the center lower part thereof. It is arrange
- a heater 25 made of a high melting point metal such as molybdenum is embedded in the susceptor 22, and the heater 25 is supplied with power from a heater power source 26 to heat the wafer W as a substrate to be processed to a predetermined temperature.
- a heater power source 26 to heat the wafer W as a substrate to be processed to a predetermined temperature.
- an electrode 28 functioning as a lower electrode of a parallel plate electrode is embedded, and this electrode 28 is grounded.
- the top wall 21a of the chamber 21 is provided with a premix-type shower head 30 that also functions as an upper electrode of a parallel plate electrode through an insulating member 29 as a gas introduction mechanism for introducing gas through a gas pipe.
- the shower head 30 includes a base member 31 and a shower plate 32, and the outer peripheral portion of the shower plate 32 is attached to the base member 31 with screws (not shown) via an annular intermediate member 33 for preventing sticking. It is fixed.
- the shower plate 32 has a flange shape, and a recess is formed therein.
- a gas diffusion space 34 is formed between the base member 31 and the shower plate 32.
- a flange 31 a is formed on the outer periphery of the base member 31, and the flange 31 a is supported by the insulating member 29.
- a plurality of gas discharge holes 35 are formed in the shower plate 32, and one gas introduction hole 36 is formed near the center of the base member 31.
- the gas introduction hole 36 is connected to a gas pipe of the gas supply mechanism 40.
- Gas supply mechanism 40 Ar gas supply source for supplying TiCl 4 gas supply source 42, Ar gas supplying TiCl 4 gas, which is a ClF 3 gas supply source 41, Ti compound gas supplying ClF 3 gas as a cleaning gas 43, have a H 2 gas H 2 gas supply source 44 for supplying, NH 3 gas for supplying the NH 3 gas supply source 45, N 2 gas supplied N 2 gas supply source 46 is a gas nitriding a reducing gas is doing.
- the ClF 3 gas supply source 41 includes ClF 3 gas supply lines 47 and 50b
- the TiCl 4 gas supply source 42 includes the TiCl 4 gas supply line 48
- the Ar gas supply source 43 includes the Ar gas supply line 49
- H 2 H 2 gas supply line 50 to the gas supply source 44
- NH in the NH 3 gas supply source 45 3 gas supply line 50a, N 2 N 2 gas supply line 50c to the gas supply source 46, are connected ing.
- Each gas line is provided with two valves 51 sandwiching the mass flow controller 52 and the mass flow controller 52.
- TiCl 4 Ar gas supply line 49 extending from the ClF 3 gas supply line 47 and the Ar gas supply source 43 extending from the ClF 3 gas supply source 41 to the TiCl 4 gas supply line 48 extending from the gas supply source 42 is connected.
- the H 2 gas supply line 50 extending from the H 2 gas supply source 44 includes an NH 3 gas supply line 50a extending from the NH 3 gas supply source 45, an N 2 gas supply line 50c extending from the N 2 gas supply source 46, and ClF.
- a ClF 3 gas supply line 50b extending from the 3 gas supply source 41 is connected.
- the TiCl 4 gas supply line 48 and the H 2 gas supply line 50 are connected to a gas mixing portion 67, and the mixed gas mixed there is connected to the gas introduction hole 36 through a gas pipe 68.
- the mixed gas reaches the gas diffusion space 34 through the gas introduction hole 36 and is discharged toward the wafer W in the chamber 21 through the gas discharge hole 35 of the shower plate 32.
- Valves 75 and 76 are provided on the upstream side of the gas mixing section 67 of the TiCl 4 gas supply line 48 and the H 2 gas supply line 50, respectively.
- a high frequency power source 54 is connected to the shower head 30 via a matching unit 53, and high frequency power is supplied from the high frequency power source 54 to the shower head 30.
- the gas supplied into the chamber 21 through the shower head 30 is turned into plasma to perform film formation.
- the base member 31 of the shower head 30 is provided with a heater 65 for heating the shower head 30.
- a heater power supply 66 is connected to the heater 65, and the shower head 30 is heated to a desired temperature by supplying power to the heater 65 from the heater power supply 66.
- a heat insulating member 69 is provided in the recess formed in the upper part of the base member 31 in order to increase the heating efficiency by the heater 65.
- a circular hole 55 is formed at the center of the bottom wall 21b of the chamber 21, and an exhaust chamber 56 is provided on the bottom wall 21b so as to protrude downward so as to cover the hole 55.
- An exhaust pipe 57 is connected to a side surface of the exhaust chamber 56, and an exhaust device 58 is connected to the exhaust pipe 57. By operating the exhaust device 58, the inside of the chamber 21 can be depressurized to a predetermined degree of vacuum.
- the susceptor 22 is provided with three (only two shown) wafer support pins 59 for supporting the wafer W to be moved up and down so as to protrude and retract with respect to the surface of the susceptor 22. It is supported by the plate 60.
- the wafer support pins 59 are lifted and lowered via the support plate 60 by a drive mechanism 61 such as an air cylinder.
- a loading / unloading port 62 for loading / unloading the wafer W to / from a wafer transfer chamber (not shown) provided adjacent to the chamber 21, and a gate valve 63 for opening / closing the loading / unloading port 62. Is provided.
- Heaters 81, 82, 83, and 84 are embedded in the wall portion of the chamber 21, the wall portion of the exhaust chamber 56, the exhaust pipe 57, and the gate valve 63, respectively.
- a heater power supply 85 is connected to these heaters, and the wall of the chamber 21, the wall of the exhaust chamber 56, the exhaust pipe 57, and the gate valve 63 are heated to a predetermined temperature by supplying power to the heaters from the heater power supply 85. It has come to be.
- the heater power supplies 26 and 66, the valve 51, the mass flow controller 52, the matching unit 53, the high frequency power supply 54, the drive mechanism 61, and the like, which are components of the film forming apparatus 100, are connected to a control unit 70 including a microprocessor (computer). It is configured to be controlled.
- the control unit 70 also includes a user interface 71 including a keyboard and a touch panel on which an operator inputs commands to manage the film forming apparatus 100, a display that visualizes and displays the operating status of the film forming apparatus 100, and the like. Is connected. Further, the control unit 70 executes processing on each component of the film forming apparatus 100 in accordance with a program for realizing various processes executed by the film forming apparatus 100 under the control of the control unit 70 and processing conditions.
- the processing recipe is stored in the storage medium 72 a in the storage unit 72.
- the storage medium may be a fixed one such as a hard disk or a portable one such as a CDROM or DVD. Moreover, you may make it transmit a recipe suitably from another apparatus via a dedicated line, for example. Then, if necessary, an arbitrary processing recipe is called from the storage unit 72 by an instruction from the user interface 71 and is executed by the control unit 70, so that the film forming apparatus 100 performs the control under the control of the control unit 70. Desired processing is performed.
- a Ti film forming process is performed on the shower head 30 in a state where the wafer W is not present in the chamber 21 (step 11).
- the Ti film formation process on the shower head 30 is a process for forming a Ti-containing portion used when forming the Ti film on the wafer W, and is the same as the Ti film formation using the conventional plasma. It is performed under the conditions of
- high-frequency power is supplied from the high-frequency power supply 54 to the shower head 30 while introducing TiCl 4 gas, H 2 gas, and Ar gas as a carrier gas through the shower head 30 while the chamber 21 is kept in vacuum.
- these gases are turned into plasma, and a Ti film 101 is formed on the surface (outer surface) of the shower head 30 as shown in FIG.
- the temperature of the shower head 30 at this time is in the range of 200 to 620 ° C., preferably in the range of 400 to 620, for example, 480 ° C.
- the film thickness of the Ti film formed on the shower head 30 varies greatly depending on the temperature of the shower head 30, it is within a range of 30 ° C., for example, 450 to 480 so that the film thickness of the Ti film does not vary greatly. It is preferable to control the temperature to be within the range of ° C.
- the shower head temperature here is the temperature of the surface of the shower head 30, and this temperature is controlled by adjusting the set temperature of the heater 65.
- Preferred ranges of other conditions in step 11 are as follows. i) High frequency power from the high frequency power supply 54 Frequency: 300 kHz to 27 MHz Power: 100-1500W ii) TiCl 4 gas flow rate 300 mm wafer: 1 to 100 mL / min (sccm), preferably 4 to 50 mL / min (sccm) Per unit area: 1.415 ⁇ 10 ⁇ 5 to 1.415 ⁇ 10 ⁇ 3 mL / min / mm 2 (sccm / mm 2 ), preferably 5.66 ⁇ 10 ⁇ 5 to 7.075 ⁇ 10 ⁇ 4 mL / Min / mm 2 (sccm / mm 2 ) iii) Ar gas flow rate 300 mm wafer: 100 to 2000 mL / min (sccm), preferably 500 to 1800 mL / min (sccm) Per unit area: 1.415 ⁇ 10 ⁇ 3 to 2.831 ⁇ 10 ⁇ 2
- the film formation time may be appropriately set according to the film thickness to be formed.
- a film thickness of about 4 to 20 nm can be obtained with a film formation time of about 15 to 90 seconds.
- the high-frequency power supply 54 is turned off to stop the plasma, the supply of gas is stopped, the inside of the chamber 21 is purged, the gate valve 63 is opened, and the wafer W is loaded into the chamber 21 by a transfer mechanism (not shown). Then, it is placed on the susceptor 22 (step 12).
- the wafer W for example, as shown in FIG. 3 described above, an interlayer insulating film 11 is formed on the Si substrate 10, and a contact hole 12 reaching the impurity diffusion region 10 a of the Si substrate 10 is formed in the interlayer insulating film 11. Those having a different structure are used.
- Ti is deposited on the surface of the wafer W by heat without using plasma (step 13).
- step 13 first, TiCl 4 gas as a chlorine-containing gas, H 2 gas as a reaction promoting gas, and carrier gas are passed through the shower head 30 in the chamber 21 with a predetermined pressure inside the chamber 21. Ar gas is introduced (step 13-1).
- a Ti film 101 as a Ti-containing portion is formed on the surface (outer surface) of the shower head 30.
- a TiCl 4 gas as a chlorine-containing gas is brought into contact with the Ti film 101, and the TiCl 4 gas and Ti are reacted (step 13-2). . That is, since the Ti film 101 is Ti-containing portion is formed in the supply path of the TiCl 4 gas, TiCl 4 gas in supplying TiCl 4 gas into the chamber 21 is in contact with the Ti film 101, TiCl 4 The gas reacts with the Ti film 101.
- This reaction can occur in the range of 200 to 800 ° C., preferably in the range of 400 to 600 ° C. Therefore, it is preferable to control the temperature of the shower head 30 to a temperature in this range.
- This reaction produces Ti precursor gas.
- TiCl 4 gas is used as the chlorine-containing gas as in this embodiment
- TiCl 3 gas or TiCl 2 gas is used as the Ti precursor gas by the reaction (1) or (2) as described above. Generate.
- TiCl 3 is easier to gasify than TiCl 2 and has an advantage that it can be easily supplied to the wafer W in a vapor phase. Therefore, TiCl 3 is preferable.
- the shower head 30 may be heated to over 500 ° C.
- the etching rate of the Ti film 101 due to the reaction with TiCl 4 varies greatly depending on the temperature of the shower head 30, so that the temperature of the shower head 30 is within a range of 30 ° C., for example, 450 to It is preferable to control to be within a range of 480 ° C.
- the shower head temperature here is also the temperature of the surface of the shower head 30.
- the temperature of the showerhead 30 is preferably set to the same temperature when the Ti film 101 in Step 11 is formed and when the TiCl 4 gas and Ti are reacted in Step 13-2. It is preferable to control the shower head 30 at the same temperature in the range of 425 to 500 ° C., which is a preferable temperature range at this time.
- a Ti precursor gas generated by the reaction between the TiCl 4 gas and the Ti film 101 is supplied onto the wafer W heated to a predetermined temperature, Ti is generated by a thermal reaction, and Ti is deposited on the wafer W (process) 13-3).
- Cl is desorbed by a thermal reaction from the Ti precursor that has reached the wafer W, and Ti is generated without using plasma.
- a Ti film is formed on the wafer W (step 13-3).
- the deposited Ti becomes a Ti film as it is, or the base is Si (Si substrate or polysilicon), and becomes a TiSi film by reaction with Si under predetermined conditions.
- the temperature of the wafer W at this time can be in the range of 200 to 800 ° C. as described above, and is preferably 350 to 700 ° C.
- the temperature of the wafer W be higher than 500 ° C. at which TiCl 2 is easily generated.
- the temperature exceeds 500 ° C. even when TiCl 3 gas is supplied onto the wafer W, decomposition of TiCl 3 occurs and TiCl 2 is adsorbed. More preferably, it is over 500 ° C. to 650 ° C.
- the susceptor temperature is measured and the wafer temperature is grasped from the measured value.
- the wafer temperature is about 5 to 50 ° C. lower than the susceptor temperature.
- the temperature of the showerhead 30 is set to 425 to 500 ° C.
- the Ti precursor gas is mainly TiCl 3 gas
- the temperature of the wafer W is over 500 ° C. It is preferable that the supplied TiCl 3 gas is decomposed into TiCl 2 gas and adsorbed on the wafer W, and Cl is desorbed from TiCl 2 by a thermal reaction to generate Ti on the wafer W.
- TiCl 4 gas flow rate 300 mm wafer 1 to 100 mL / min (sccm), preferably 4 to 50 mL / min (sccm) Per unit area: 1.415 ⁇ 10 ⁇ 5 to 1.415 ⁇ 10 ⁇ 3 mL / min / mm 2 (sccm / mm 2 ), preferably 5.66 ⁇ 10 ⁇ 5 to 7.075 ⁇ 10 ⁇ 4 mL / Min / mm 2 (sccm / mm 2 )
- Ar gas flow rate 300 mm wafer 100 to 2000 mL / min (sccm), preferably 500 to 1800 mL / min (sccm) Per unit area: 1.415 ⁇ 10 ⁇ 3 to 2.831 ⁇ 10 ⁇ 2 mL / min / mm 2 (sccm / mm 2 ), preferably 7.077 ⁇ 10 ⁇ 3
- the film formation time may be appropriately set according to the film thickness to be formed.
- the thickness of the Ti film is about 1 to 10 nm, and the film formation time at that time is about 1 to 90 sec.
- the gas supply is stopped, the inside of the chamber 21 is purged, the gate valve 63 is opened, and the wafer W is transferred by a transfer mechanism (not shown). Unload from the chamber 21 (step 14).
- nitridation processing in the chamber 21 is performed in the state where the wafer W does not exist in the chamber 21 (step 15). This nitriding treatment is performed to prevent the Ti film formed on the surface of the shower head 30 and the surface of the susceptor 22 from being peeled off and becoming particles.
- NH 3 gas is flowed together with H 2 gas and Ar gas as a nitriding gas, and the high frequency power supply 54 supplies the shower head 30.
- the processing gas is converted into plasma by applying high-frequency power, and the surface of the Ti film formed on the inner wall of the chamber 21, the surface of the shower head 30 and the surface of the susceptor 22 is nitrided by the processing gas converted into plasma.
- Preferred conditions for the nitriding treatment are as follows. i) High frequency power from the high frequency power supply 54 Frequency: 300 kHz to 27 MHz Power: 100-1500W ii) NH 3 gas flow rate 300 mm wafer: 100 to 2000 mL / min (sccm) Per unit area: 1.415 ⁇ 10 ⁇ 3 to 2.831 ⁇ 10 ⁇ 2 mL / min / mm 2 (sccm / mm 2 ) iii) Ar gas flow rate of 300 mm wafer: 100 to 2000 mL / min (sccm) Per unit area: 1.415 ⁇ 10 ⁇ 3 to 2.831 ⁇ 10 ⁇ 2 mL / min / mm 2 (sccm / mm 2 ) iv) H 2 gas flow rate 300mm wafers: 250 ⁇ 5000mL / min (sccm ) Per unit area: 3.539 ⁇ 10 ⁇ 3 to 7.077 ⁇ 10 ⁇
- the nitriding treatment can also be performed without using plasma.
- the preferable conditions in that case are as follows. i) NH 3 gas flow rate 300 mm wafer: 100 to 2000 mL / min (sccm) Per unit area: 1.415 ⁇ 10 ⁇ 3 to 2.831 ⁇ 10 ⁇ 2 mL / min / mm 2 (sccm / mm 2 ) ii) Ar gas flow rate of 300 mm wafer: 100 to 2000 mL / min (sccm) Per unit area: 1.415 ⁇ 10 ⁇ 3 to 2.831 ⁇ 10 ⁇ 2 mL / min / mm 2 (sccm / mm 2 ) iii) H 2 gas flow rate 300 mm wafer: 250-5000 mL / min (sccm) Per unit area: 3.539 ⁇ 10 ⁇ 3 to 7.077 ⁇ 10 ⁇ 2 mL / min / mm 2 (sccm / mm
- a series of steps for forming a Ti film on one wafer is completed. Then, these steps 11 to 15 are repeated for a plurality of wafers W.
- the cleaning of the chamber 21 is performed by introducing a ClF 3 gas as a cleaning gas into the chamber 21 in a state where the wafer W does not exist in the chamber 21. .
- the inside of the chamber 21 is precoated with, for example, a TiN film, and the above wafer processing step is repeated.
- TiCl 4 as a chlorine-containing gas is brought into contact with the Ti film 101 formed on the surface of the shower head 30 with the wafer W on the susceptor 22 to react with them, and Ti produced thereby Since TiCl 3 gas or TiCl 2 gas is used as the precursor, it is possible to generate Ti by desorbing Cl with lower energy than in the case of using TiCl 4 as a precursor. Therefore, Ti can be deposited only by thermal reaction without using plasma, and a Ti film or TiSi x film can be formed without causing plasma damage to the wafer W.
- a Ti film is formed on the surface of the shower head 30 in the same manner as the existing Ti film forming method, and the Ti film on the surface of the shower head 30 reacts with TiCl 4 conventionally used as a film forming gas. Since the Ti precursor is generated and Ti is deposited on the wafer W, it is possible to realize plasmaless Ti film formation or TiSi x film formation using the same gas as in the existing apparatus and the conventional one. it can.
- the film to be formed is not a TiSi x film but a Ti film
- the film is formed from the viewpoint of preventing oxidation of the obtained Ti film and preventing film peeling.
- the nitrided film may be subjected to nitriding treatment.
- the film formation flow at this time is as shown in the flowchart of FIG. That is, after performing the steps 11 to 13 as described above, the nitriding treatment of the Ti film or the TiSi x film (step 16) is performed, and the wafer W in the step 14 is unloaded.
- the nitriding treatment in the chamber 21 in the step 15 is not necessary.
- the nitriding treatment in step 16 can be performed under the same conditions as the nitriding treatment of the shower head 30 and the like in step 15 described above.
- the Ti film can be deposited with good step coverage with respect to the contact hole, and the Ti film is sufficiently formed on the side wall of the contact hole. Therefore, after the Ti film is formed on the surface of the wafer W for a predetermined time in the step 13, plasma damage due to the shading effect does not occur even if plasma is generated. For this reason, as shown in the flowchart of FIG. 16, after depositing Ti on the side wall to a thickness that can ensure conduction to the bottom of the contact hole in step 13, high frequency power is applied to the shower head 30 from the high frequency power source 54. Thus, the step of depositing Ti by the plasma generated in the chamber 21 (step 17) can be performed. Thereby, the film formation reaction can be promoted, and the film formation time can be shortened. At this time, the power of the high-frequency power is preferably 100 to 1500 W.
- step 16 may be performed after such step 17.
- Ti can also be deposited by heat without using plasma under the same conditions as in step 13 (step 18). This is because the Ti film adheres to the surface of the shower head 30 when Ti is deposited by plasma as in the step 17, so that Ti deposition without plasma can be performed. Step 17 and step 18 may be repeated a plurality of times.
- step 17, step 18 and step 16 show an example in which the nitriding treatment of the Ti film in step 16 is performed after step 18 in FIG.
- step 17, step 18 and step 16 may be repeated a plurality of times.
- step 17 and step 18 may be repeated a plurality of times as shown in FIG. Of course, these repetitions may not be performed.
- a Ti film is formed on the outer surface of the shower head 30, but in this case, a high frequency electric field is formed between the shower head 30 and the electrode 28 in the susceptor 22 to form inside the chamber 21.
- a Ti film is also formed on the susceptor 22 because of the generation of plasma.
- FIG. 21A when the insulating member 110 is disposed between the base plate 31 and the shower plate 32 and high frequency power is applied to the base member 31 from the high frequency power source 54, It is preferable that a high frequency electric field is formed between the base plate 31 and the shower plate 32 so that plasma is generated in the gas diffusion space 34. Accordingly, as shown in FIG.
- the Ti film 102 can be formed on the inner surface of the shower head 30, and the Ti film can be prevented from being formed on the susceptor 22. Further, thus the Ti film 102 formed on the inner surface of the shower head 30, because that is present in the supply path of the TiCl 4 gas, TiCl 4 gas is reacted in contact with the Ti film 102. Thereby, Ti precursor gas is generated, and a Ti film can be formed on the surface of the wafer W without using plasma.
- the distance D2 of the recess 110a is preferably set to such a value that discharge does not flow into it, according to Paschen's law, and preferably 1 to 3 mm.
- the Ti film is deposited on the wafer W as shown in the flow of FIGS.
- a film forming apparatus configured as shown in FIG. 23 is insulated between the base plate 31 and the shower plate 32 so that the plasma generation into the gas diffusion space 34 and the plasma generation into the chamber 21 can be selectively performed by the high frequency power source 54.
- the high frequency power supply 54 can be connected to both the base plate 31 and the shower plate 32, and the connection to the shower plate 32 can be connected and disconnected by the switch 112.
- the switch 112 cuts off the connection of the high-frequency power source 54 to the base plate 31, and when generating plasma also in the chamber 21, the switch 112 Thus, the high frequency power supply 54 is also connected to the base plate 31.
- a remote plasma source 105 is connected to a gas pipe 68 to generate plasma from the remote plasma source 105 as shown in FIG.
- a Ti film may be formed by the above.
- a Ti film is formed on the gas pipe 68 on the supply side from the shower head 30 in addition to the inner surface of the shower head 30.
- a Ti-containing member is disposed in advance in a TiCl 4 gas supply path, for example, the shower head 30 or piping. Also good.
- the Ti-containing member 103 is fitted into the portion where the TiCl 4 gas is introduced into the gas diffusion space 34 of the base plate 31 of the shower head 30 so as to continue to the gas introduction hole 36.
- TiCl 4 gas is introduced into the gas diffusion space 34 of the shower head 30 through the gas pipe 68, the gas introduction hole 36, and the Ti-containing member 103, but NH 3 gas, H 2 gas, etc.
- the gas diffusion space 34 is introduced through the pipe 133 and the gas introduction hole 140.
- the Ti-containing member 103 has a disk part 121 and a flange part 122 having a large number of gas flow holes 122a provided in the lower part of the disk part 121.
- a screw is inserted into a screw hole 122 b provided in the portion 122 and is screwed to the lower surface of the base plate 31.
- the disk part 121 includes a cylindrical base 123 made of a metal having high heat resistance and corrosion resistance, such as Ni, and a Ti member arrangement part 124 arranged in the inner space thereof.
- the Ti member disposition portion 124 is configured by disposing a Ti member in a state where TiCl 4 gas can flow.
- the Ti member placement portion 124 is formed by filling a space with a granular Ti member, a mesh-like Ti member, or a breathable Ti member such as a honeycomb shape. Yes.
- the TiCl 4 gas supplied from the gas pipe 68 to the Ti-containing member 103 via the gas introduction hole 36 flows through the Ti member arrangement portion 124 heated to a predetermined temperature by the heater 65, It reacts with Ti by contacting the Ti member. Then, the Ti precursor gas generated by this reaction passes through the gas flow hole 122a, reaches the gas diffusion space 34, and is introduced into the chamber 21 through the gas discharge hole 35.
- FIG. 27 is a diagram illustrating a preferable example of the gas supply pipe when the Ti-containing member 103 is provided.
- a backflow prevention pipe 131 for preventing a backflow of TiCl 4 gas is connected.
- a carrier gas pipe 132 is connected to the upstream side. Opening / closing valves 135a and 135b are provided on the upstream side of the connecting part of the carrier gas pipe 132 in the gas pipe 68 and between the connecting part of the carrier gas pipe 132 and the connecting part of the backflow prevention pipe 131, respectively.
- Ar gas is passed through the backflow prevention pipe 131 as a backflow prevention gas.
- the backflow prevention pipe 131 is provided with an open / close valve 136. Further, Ar gas, for example, is supplied as a carrier gas to the carrier gas pipe 132, and the carrier gas supplied to the carrier gas pipe 132 can be supplied to the gas pipe 68. From the middle of the carrier gas pipe 132, a gas pipe 133 extending to the base member 31 of the shower head 30 is branched and extends, and a gas introduction hole 140 is formed at a connection portion of the gas pipe 133 of the base member 31.
- the carrier gas pipe 132 is provided with opening / closing valves 137a and 137b before and after the connecting portion of the gas pipe 133.
- a gas pipe 134 is connected to the gas pipe 133, and NH 3 gas, H 2 gas, Ar gas, and N 2 gas are supplied to the gas pipe 134, and these gases pass through the gas pipe 134 and are gas pipe 133.
- the gas is introduced into the gas diffusion space 34 of the shower head 30 through the gas introduction hole 140.
- An opening / closing valve 138 is provided on the upstream side of the gas pipe 134 connecting portion of the gas pipe 133.
- the gas pipe 134 is provided with an open / close valve 139.
- the TiCl 4 gas supplied to the gas pipe 68 may be introduced into the gas diffusion space 34 of the shower head 30 by bypassing the Ti-containing member 103 via the carrier gas pipe 132, the gas pipe 133, and the gas introduction hole 140. It is possible.
- the opening / closing valves 135a, 135b, 136, 137a, and 137b are opened, and the TiCl 4 gas is allowed to flow through the gas pipe 68 while supplying the carrier gas.
- at least one of NH 3 gas, H 2 gas, Ar gas, and N 2 gas passes through the gas pipes 134 and 133 and the gas introduction hole 140 in a state where the opening / closing valve 138 is closed and 139 is opened. It is introduced into the gas diffusion space 34.
- a Ti-containing member 104 is arranged in the middle of a gas pipe 68 as shown in FIG.
- the TiCl 4 gas passes through the Ti-containing member 104 in the middle of the gas pipe 68 and is further introduced into the gas diffusion space 34 of the shower head 30 through the gas pipe 68 and the gas introduction hole 36.
- NH 3 gas, H 2 gas, and the like are introduced into the gas diffusion space 34 via another pipe 153 and a gas introduction hole 160.
- the Ti-containing member 104 includes a base member 141 having a substantially cylindrical shape made of a metal having high heat resistance and corrosion resistance such as Ni, and a cartridge embedded on the outer peripheral side of the base member 141.
- a heater 142 and a Ti member placement portion 143 disposed in the inner space of the base member 141 are included.
- the Ti member disposition portion 143 is configured by disposing a Ti member in a state where TiCl 4 gas can flow. That is, the Ti member placement portion 143 is formed by filling a space with a granular Ti member, a mesh-like Ti member, or a honeycomb-like Ti member in a breathable state. Yes.
- the TiCl 4 gas supplied from the gas pipe 68 to the Ti-containing member 104 flows through the Ti member placement portion 143 heated to a predetermined temperature by the cartridge heater 142, and contacts the Ti member during that time. Reacts with Ti.
- the Ti precursor gas generated by this reaction reaches the gas diffusion space 34 through the gas pipe 68 and the gas introduction hole 36, and is introduced into the chamber 21 through the gas discharge hole 35.
- FIG. 30 is a diagram illustrating a preferable example of the gas supply pipe when the Ti-containing member 104 is provided.
- TiCl 4 gas on the downstream side of the Ti-containing member 104 in the gas pipe 68 for supplying to the shower head 30, TiCl 4 and the backflow prevention pipe 151 for preventing gas backflow is connected, Ti-containing member 104 in the gas pipe 68
- a carrier gas pipe 152 is connected to the upstream side
- a gas pipe 153 is connected to the downstream side of the carrier gas pipe 152 connecting portion.
- Opening / closing valves 155 a and 155 b are provided in the gas pipe 68 upstream of the carrier gas pipe 152 connection part and between the gas pipe 153 connection part and the Ti-containing member 104, respectively.
- Ar gas is passed through the backflow prevention pipe 151 as backflow prevention gas.
- the backflow prevention pipe 151 is provided with an open / close valve 156.
- Ar gas is supplied as a carrier gas to the carrier gas pipe 152, and the carrier gas supplied to the carrier gas pipe 152 can be supplied to the gas pipe 68.
- the carrier gas pipe 152 is provided with an open / close valve 157.
- the gas pipe 153 reaches the base member 31, and a gas introduction hole 160 is formed at a connection portion of the gas pipe 153 of the base member 31.
- a gas pipe 154 is connected to the gas pipe 153, and NH 3 gas, H 2 gas, Ar gas, and N 2 gas are supplied to the gas pipe 154, and these gases pass through the gas pipe 154 and the gas pipe 153.
- the gas is introduced into the gas diffusion space 34 of the shower head 30 through the gas introduction hole 160.
- An opening / closing valve 159 is provided on the upstream side of the gas pipe 153 connection portion of the gas pipe 153.
- the gas pipe 154 is provided with an open / close valve 158.
- the TiCl 4 gas supplied to the gas pipe 68 can be introduced into the gas diffusion space 34 of the shower head 30 by bypassing the Ti-containing member 104 via the gas pipe 153 and the gas introduction hole 160.
- the open / close valves 155a, 155b, 156, and 157 are opened, and the TiCl 4 gas is supplied to the gas pipe 68 while supplying the carrier gas. Shed. At this time, at least one of NH 3 gas, H 2 gas, Ar gas, and N 2 gas is used in the state where the open / close valve 158 is opened and the open / close valve 159 is closed, and the gas pipes 154 and 153 and the gas introduction hole 160 are opened. Is introduced into the gas diffusion space 34.
- the opening / closing valve 155b is closed and the opening / closing valves 156, 158, 159 are opened. .
- the susceptor temperature is set to 640 ° C.
- the temperature of the heater 65 is set to 370 ° C.
- the surface temperature of the shower head 30 is set to 480 ° C.
- the wafer is not first carried into the chamber.
- TiCl 4 gas flow rate 12 mL / min (sccm)
- H 2 gas flow rate 4000 mL / min (sccm)
- Ar gas flow rate 1600 mL / min (sccm)
- a high frequency power was applied to form a Ti film of about 25 nm on the surface (outer surface) of the shower head in 90 seconds.
- the silicon wafer is carried into the chamber while maintaining the susceptor temperature and the shower head temperature at the same temperature, the pressure in the chamber is maintained at 667 Pa (5 Torr), and TiCl 4 gas, H 2 is generated without generating plasma.
- a Ti film was formed on the surface of the silicon wafer by flowing gas and Ar gas at the same flow rate as when forming the Ti film on the shower head.
- the film thickness was 10 nm as measured by X-ray fluorescence analysis (XRF).
- the film was subjected to X-ray diffraction.
- the result is shown in FIG.
- the resistance value Rs of the film was 51 ⁇ / sq, the variation was 8% at 1 ⁇ , and the resistivity was 102 ⁇ ⁇ cm. This result was equivalent to a film using conventional plasma.
- FIG. 32 is a transmission microscope (TEM) photograph of a cross section showing the film formation state of the contact hole at that time. As shown in this photograph, the film thickness on the interlayer insulating film (Top) is 2 nm, whereas the film thickness in the middle of the contact hole (Middle) is 5 nm (step coverage: 250%), and the bottom of the contact hole (Bottom) The film thickness was 22 nm (step coverage: 1100%), and very good step coverage was obtained.
- TEM transmission microscope
- the present invention is not limited to the above embodiment and can be variously modified.
- the Ti film is formed on the silicon wafer (silicon substrate).
- the present invention is not limited to this, such as forming the film on the polysilicon formed on the wafer.
- the substrate to be processed is not limited to a semiconductor wafer, and may be another substrate such as a liquid crystal display (LCD) substrate, a glass substrate, or a ceramic substrate.
- LCD liquid crystal display
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Electrochemistry (AREA)
- Plasma & Fusion (AREA)
- Chemical Vapour Deposition (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
本発明はまた、そのような方法を実行するためのプログラムを記憶した記憶媒体を提供しようとするものである。
まず、図2Aに示すように、チャンバ1内の所定位置に被処理基板としての半導体ウエハ(以下、単にウエハと記す)Wを配置する(工程1)。
Ti+3TiCl4 → 4TiCl3 ・・・(1)
Ti+TiCl4 → 2TiCl2 ・・・(2)
2TiCl3 → TiCl2+TiCl4 ・・・(3)
TiCl3生成反応の温度依存性は、図4のようになる。図4は、横軸に絶対温度Tの逆数×1000の値をとり、縦軸に反応の速度(エッチングレート)REの対数をとって、各温度でのエッチングレートをアレニウスプロットしたものである。この図に示すように、500℃から400℃付近までは直線となり一定の活性化エネルギーEa(=+0.76eV)を示すが、温度が400℃付近より低下するとエッチングレートが低下していることがわかる。
以下の実施形態においては、従来用いられていたTi膜の成膜装置を用いて本発明を実施する例について説明する。
i)高周波電源54からの高周波電力
周波数:300kHz~27MHz
パワー:100~1500W
ii)TiCl4ガス流量
300mmウエハ:1~100mL/min(sccm)、好ましくは4~50mL/min(sccm)
単位面積あたり:1.415×10-5~1.415×10-3mL/min/mm2(sccm/mm2)、好ましくは5.66×10-5~7.075×10-4mL/min/mm2(sccm/mm2)
iii)Arガス流量
300mmウエハ:100~2000mL/min(sccm)、好ましくは500~1800mL/min(sccm)
単位面積あたり:1.415×10-3~2.831×10-2mL/min/mm2(sccm/mm2)、好ましくは7.077×10-3~2.547×10-2mL/min/mm2(sccm/mm2)
iv)H2ガス流量
300mmウエハ:250~5000mL/min(sccm)、好ましくは 2000~5000mL/min(sccm)
単位面積あたり:3.539×10-3~7.077×10-2mL/min/mm2(sccm/mm2)、好ましくは2.831×10-2~7.077×10-2mL/min/mm2(sccm/mm2)
v)チャンバ内圧力:400~1333Pa(3~10Torr)、好ましくは400~1067Pa(3~8Torr)
TiCl2+H2 → Ti+2HCl ・・・(4)
i)TiCl4ガス流量
300mmウエハ:1~100mL/min(sccm)、好ましくは4~50mL/min(sccm)
単位面積あたり:1.415×10-5~1.415×10-3mL/min/mm2(sccm/mm2)、好ましくは 5.66×10-5~7.075×10-4mL/min/mm2(sccm/mm2)
iii)Arガス流量
300mmウエハ:100~2000mL/min(sccm)、好ましくは500~1800mL/min(sccm)
単位面積あたり:1.415×10-3~2.831×10-2mL/min/mm2(sccm/mm2)、好ましくは7.077×10-3~2.547×10-2mL/min/mm2(sccm/mm2)
iv)H2ガス流量
300mmウエハ:250~5000mL/min(sccm)、好ましくは2000~5000mL/min(sccm)
単位面積あたり:3.539×10-3~7.077×10-2mL/min/mm2(sccm/mm2)、好ましくは2.831×10-2~7.077×10-2mL/min/mm2(sccm/mm2)
v)チャンバ内圧力:1.33~1333Pa(0.1~10Torr)、好ましくは400~1067Pa(3~8Torr)
i)高周波電源54からの高周波電力
周波数:300kHz~27MHz
パワー:100~1500W
ii)NH3ガス流量
300mmウエハ:100~2000mL/min(sccm)
単位面積あたり:1.415×10-3~2.831×10-2mL/min/mm2(sccm/mm2)
iii)Arガス流量
300mmウエハ:100~2000mL/min(sccm)
単位面積あたり:1.415×10-3~2.831×10-2mL/min/mm2(sccm/mm2)
iv)H2ガス流量
300mmウエハ:250~5000mL/min(sccm)
単位面積あたり:3.539×10-3~7.077×10-2mL/min/mm2(sccm/mm2)
v)チャンバ内圧力:400~1333Pa(3~10Torr)
vi)シャワーヘッド温度:250~600℃
vii)サセプタ温度:350~700℃
i)NH3ガス流量
300mmウエハ:100~2000mL/min(sccm)
単位面積あたり:1.415×10-3~2.831×10-2mL/min/mm2(sccm/mm2)
ii)Arガス流量
300mmウエハ:100~2000mL/min(sccm)
単位面積あたり:1.415×10-3~2.831×10-2mL/min/mm2(sccm/mm2)
iii)H2ガス流量
300mmウエハ:250~5000mL/min(sccm)
単位面積あたり:3.539×10-3~7.077×10-2mL/min/mm2(sccm/mm2)
iv)チャンバ内圧力:1.33~1333Pa(0.1~10Torr)
vi)シャワーヘッド温度:250~600℃
vii)サセプタ温度:350~700℃
ここでは、図11の装置を用い、サセプタ温度を640℃とし、ヒーター65の温度を370℃に設定してシャワーヘッド30の表面温度を480℃として、まず、チャンバ内にウエハを搬入せずに、TiCl4ガス流量:12mL/min(sccm)、H2ガス流量:4000mL/min(sccm)、Arガス流量:1600mL/min(sccm)としてこれらガスを流すとともに、高周波電源からシャワーヘッドに800Wの高周波電力を印加して、90secで約25nmのTi膜をシャワーヘッドの表面(外面)に成膜した。
Claims (37)
- チャンバ内に被処理基板を配置する工程と、
供給経路を通って塩素含有ガスを含む処理ガスを被処理基板が配置された前記チャンバ内へ供給する工程と、
前記処理ガスの供給経路にTiを含有するTi含有部を配置し、前記処理ガスを前記チャンバに供給する際に、前記処理ガス中の塩素含有ガスを前記Ti含有部に接触させて前記塩素含有ガスと前記Ti含有部のTiとを反応させる工程と、
前記チャンバ内の被処理基板を加熱しつつ、前記塩素含有ガスと前記Ti含有部のTiとの反応により生じたTi前駆体ガスを被処理基板上に供給し、熱反応により被処理基板の表面にTiを堆積する工程と
を有する成膜方法。 - 前記供給経路は、ガス供給源から処理ガスを供給するガス配管と、ガス配管により供給されてきた処理ガスを前記チャンバに導入するガス導入機構を含み、前記Ti含有部は、前記ガス配管または前記ガス導入機構に配置されている、請求項1に記載の成膜方法。
- 前記Ti含有部は、前記ガス導入機構の外面または内面に設けられたTi膜を有する、請求項2に記載の成膜方法。
- 前記Ti含有部は、前記ガス導入機構またはガス供給配管に設けられたTi含有部材を有する、請求項2に記載の成膜方法。
- 前記Ti含有部材は、粒状のTi部材が空間に充填された状態、またはメッシュ状のTi部材が配置された状態、または、通気可能なTi部材が配置された状態のTi部材配置部を有する、請求項4に記載の成膜方法。
- 前記塩素含有ガスと前記Ti含有部のTiとを反応させる工程は、200~800℃で行われる、請求項1に記載の成膜方法。
- 前記熱反応により被処理基板の表面にTiを堆積する工程は、200~800℃に被処理基板を加熱しながら行われる、請求項1に記載の成膜方法。
- 前記塩素含有ガスはTiCl4ガスであり、前記Ti前駆体ガスはTiCl3ガスまたはTiCl2ガスである、請求項1に記載の成膜方法。
- 前記塩素含有ガスと前記Ti含有部のTiとを反応させる温度を425~500℃とすることにより、前記Ti前駆体ガスとしてTiCl3ガスを生成させる、請求項8に記載の成膜方法。
- 前記塩素含有ガスと前記Ti含有部のTiとを反応させる温度を500℃超とすることにより、前記Ti前駆体ガスとしてTiCl2ガスを生成させる、請求項8に記載の成膜方法。
- 熱反応により被処理基板の表面にTiを堆積する工程は、被処理基板の温度を500℃超とし、被処理基板の表面にTiCl2を吸着させ、TiCl2からClを離脱させる反応を生じさせる、請求項8に記載の成膜方法。
- 前記熱反応により被処理基板の表面にTiを堆積した後、前記チャンバ内で処理ガスのプラズマを生成しつつ、さらにTiを堆積する、請求項1に記載の成膜方法。
- 前記熱反応によるTiの堆積と、前記プラズマによるTiの堆積とを繰り返し行う、請求項11に記載の成膜方法。
- 前記塩素含有ガスを含む処理ガスは、さらにH2ガスを含む、請求項1に記載の成膜方法。
- 前記塩素含有ガスを含む処理ガスは、さらに不活性ガスを含む、請求項1に記載の成膜方法。
- 前記Tiを堆積する工程により、被処理基板の表面にTi膜が形成される、請求項1に記載の成膜方法。
- 被処理基板の表面にSi含有部を有し、前記Tiを堆積する工程により、被処理基板の表面にTiSix膜が形成される、請求項1に記載の成膜方法。
- チャンバ内に被処理基板を配置しない状態で、処理ガスを前記チャンバに導入するためのガス導入機構にTiCl4ガスを含むガスを供給して、前記ガス導入機構にTi膜を形成する工程と、
前記チャンバ内に被処理基板を搬入する工程と、
塩素含有ガスを含む処理ガスを前記ガス導入機構を介して前記チャンバ内に導入する工程と、
前記処理ガスを前記チャンバ内に導入する際に、前記処理ガス中の塩素含有ガスを前記Ti膜に接触させて前記塩素含有ガスと前記Ti膜のTiとを反応させる工程と、
前記チャンバ内の被処理基板を加熱しつつ、前記塩素含有ガスと前記Ti膜のTiとの反応により生じたTi前駆体ガスを被処理基板上に供給し、熱反応により被処理基板の表面にTiを堆積する工程と
を有する成膜方法。 - 前記ガス導入機構にTi膜を形成する工程は、プラズマを生成しつつ行われる、請求項18に記載の成膜方法。
- 前記ガス導入機構にTi膜を形成する工程は、前記チャンバ内にプラズマを生成しつつ前記ガス導入機構の外面にTi膜を形成する、請求項19に記載の成膜方法。
- 前記ガス導入機構にTi膜を形成する工程は、前記ガス導入機構の内部にプラズマを生成しつつ前記ガス導入機構の内面にTi膜を形成する、請求項19に記載の成膜方法。
- 前記塩素含有ガスと前記Ti膜とを反応させる工程は、200~800℃で行われる、請求項18に記載の成膜方法。
- 前記熱反応により被処理基板の表面にTiを堆積する工程は、200~800℃に被処理基板を加熱しながら行われる、請求項18に記載の成膜方法。
- 前記塩素含有ガスはTiCl4ガスであり、前記Ti前駆体ガスはTiCl3ガスまたはTiCl2ガスである、請求項18に記載の成膜方法。
- 前記塩素含有ガスと前記Ti含有部のTiとを反応させる温度を425~500℃とすることにより、前記Ti前駆体ガスとしてTiCl3ガスを生成させる、請求項24に記載の成膜方法。
- 前記塩素含有ガスと前記Ti含有部のTiとを反応させる温度を500℃超とすることにより、前記Ti前駆体ガスとしてTiCl2ガスを生成させる、請求項24に記載の成膜方法。
- 熱反応により被処理基板の表面にTiを堆積する工程は、被処理基板の温度を500℃超とし、被処理基板の表面にTiCl2を吸着させ、TiCl2からClを離脱させる反応を生じさせる、請求項24に記載の成膜方法。
- 前記熱反応により被処理基板の表面にTiを堆積した後、前記チャンバ内で処理ガスのプラズマを生成しつつ、さらにTiを堆積する、請求項18に記載の成膜方法。
- 前記熱反応によるTiの堆積と、前記プラズマによるTiの堆積とを繰り返し行う、請求項28に記載の成膜方法。
- 前記塩素含有ガスを含む処理ガスは、さらにH2ガスを含む、請求項18に記載の成膜方法。
- 前記塩素含有ガスを含む処理ガスは、さらに不活性ガスを含む、請求項18に記載の成膜方法。
- 前記Tiを堆積する工程により、被処理基板の表面にTi膜が形成される、請求項18に記載の成膜方法。
- 被処理基板の表面にSi含有部を有し、前記Tiを堆積する工程により、被処理基板の表面にTiSix膜が形成される、請求項18に記載の成膜方法。
- 被処理基板を収容するチャンバと、
前記チャンバ内で被処理基板を載置する載置台と、
前記載置台上の被処理基板を加熱する第1のヒーターと、
ガス供給源からガス配管を介して前記チャンバ内に処理ガスを導入するガス導入機構と、
前記処理ガスの供給経路に設けられたTiを含有するTi含有部と、
前記Ti含有部を加熱可能な第2のヒーターと、
前記チャンバ内を排気する排気手段と、
前記チャンバ内での処理を制御する制御部と
を具備する成膜装置であって、
前記制御部は、
前記チャンバ内に被処理基板を搬入させるとともに、前記載置台上に載置させ、
塩素含有ガスを含む処理ガスを前記ガス配管およびガス導入機構を介して前記チャンバ内に導入させ、
前記処理ガスを前記チャンバ内に導入させる際に、前記処理ガス中の塩素含有ガスを前記Ti含有部に接触させて前記第2のヒーターにより加熱することにより前記塩素含有ガスと前記Ti含有部のTiとを反応させ、
前記第1のヒーターにより前記載置台上の被処理基板を加熱させつつ、前記塩素含有ガスと前記Ti含有部のTiとの反応により生じたTi前駆体ガスを被処理基板上に供給し、熱反応により被処理基板の表面にTiを堆積させる、成膜装置。 - 被処理基板を収容するチャンバと、
前記チャンバ内で被処理基板を載置する載置台と、
前記載置台上の被処理基板を加熱する第1のヒーターと、
ガス供給源からガス配管を介して前記チャンバ内に処理ガスを導入するガス導入機構と、
前記ガス導入機構を加熱する第2のヒーターと、
前記処理ガスのプラズマを生成するプラズマ生成機構と、
前記チャンバ内を排気する排気手段と、
前記チャンバ内での処理を制御する制御部と
を具備する成膜装置であって、
前記制御部は、
前記チャンバ内に被処理基板を配置しない状態で、前記ガス導入機構にTiCl4ガスを含むガスを供給して、前記ガス導入機構にTi膜を形成させ、
前記チャンバ内に被処理基板を搬入させるとともに、前記載置台上に載置させ、
塩素含有ガスを含む処理ガスを前記ガス配管およびガス導入機構を介して前記チャンバ内に導入させ、
前記処理ガスを前記チャンバ内に導入させる際に、前記処理ガス中の塩素含有ガスを前記Ti膜に接触させて前記第2のヒーターにより加熱することにより前記塩素含有ガスと前記Ti膜のTiとを反応させ、
前記第1のヒーターにより前記載置台上の被処理基板を加熱させつつ、前記塩素含有ガスと前記Ti膜のTiとの反応により生じたTi前駆体ガスを被処理基板上に供給し、熱反応により被処理基板の表面にTiを堆積させる、成膜装置。 - コンピュータ上で動作し、成膜装置を制御するためのプログラムが記憶された記憶媒体であって、
前記プログラムは、実行時に、
チャンバ内に被処理基板を配置する工程と、
供給経路を通って塩素含有ガスを含む処理ガスを被処理基板が配置された前記チャンバ内へ供給する工程と、
前記処理ガスの供給経路にTiを含有するTi含有部を配置し、前記処理ガスを前記チャンバに供給する際に、前記処理ガス中の塩素含有ガスを前記Ti含有部に接触させて前記塩素含有ガスと前記Ti含有部のTiとを反応させる工程と、
前記チャンバ内の被処理基板を加熱しつつ、前記塩素含有ガスと前記Ti含有部のTiとの反応により生じたTi前駆体ガスを被処理基板上に供給し、熱反応により被処理基板の表面にTiを堆積する工程と
を有するTi膜の成膜方法が行われるように、コンピュータに前記成膜装置を制御させる、記憶媒体。 - コンピュータ上で動作し、成膜装置を制御するためのプログラムが記憶された記憶媒体であって、
前記プログラムは、実行時に、
チャンバ内に被処理基板を配置しない状態で、処理ガスを前記チャンバに導入するためのガス導入機構にTiCl4ガスを含むガスを供給して、前記ガス導入機構にTi膜を形成する工程と、
前記チャンバ内に被処理基板を搬入する工程と、
塩素含有ガスを含む処理ガスを前記ガス導入機構を介して前記チャンバ内に導入する工程と、
前記処理ガスを前記チャンバ内に導入する際に、前記処理ガス中の塩素含有ガスを前記Ti膜に接触させて前記塩素含有ガスと前記Ti膜のTiとを反応させる工程と、
前記チャンバ内の被処理基板を加熱しつつ、前記塩素含有ガスと前記Ti膜のTiとの反応により生じたTi前駆体ガスを被処理基板上に供給し、熱反応により被処理基板の表面にTiを堆積する工程と
を有する成膜方法が行われるように、コンピュータに前記成膜装置を制御させる、記憶媒体。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010542130A JP5492789B2 (ja) | 2008-12-12 | 2009-12-11 | 成膜方法および成膜装置 |
CN2009801501832A CN102245802A (zh) | 2008-12-12 | 2009-12-11 | 成膜方法、成膜装置和存储介质 |
KR1020117013467A KR101282544B1 (ko) | 2008-12-12 | 2009-12-11 | 성막 방법 및 성막 장치 |
US13/158,120 US8334208B2 (en) | 2008-12-12 | 2011-06-10 | Film-forming method and film-forming apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008317035 | 2008-12-12 | ||
JP2008-317035 | 2008-12-12 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/158,120 Continuation US8334208B2 (en) | 2008-12-12 | 2011-06-10 | Film-forming method and film-forming apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010067856A1 true WO2010067856A1 (ja) | 2010-06-17 |
Family
ID=42242841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/070724 WO2010067856A1 (ja) | 2008-12-12 | 2009-12-11 | 成膜方法および成膜装置、ならびに記憶媒体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8334208B2 (ja) |
JP (1) | JP5492789B2 (ja) |
KR (1) | KR101282544B1 (ja) |
CN (1) | CN102245802A (ja) |
TW (1) | TWI531672B (ja) |
WO (1) | WO2010067856A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6076615B2 (ja) * | 2012-04-27 | 2017-02-08 | 東京エレクトロン株式会社 | 不純物拡散方法、基板処理装置及び半導体装置の製造方法 |
US9330936B2 (en) | 2013-11-09 | 2016-05-03 | Tokyo Electron Limited | Method for depositing metal layers on germanium-containing films using metal chloride precursors |
US9899258B1 (en) * | 2016-09-30 | 2018-02-20 | Taiwan Semiconductor Manufacturing Company, Ltd. | Metal liner overhang reduction and manufacturing method thereof |
US10535527B2 (en) | 2017-07-13 | 2020-01-14 | Applied Materials, Inc. | Methods for depositing semiconductor films |
US10867905B2 (en) | 2017-11-30 | 2020-12-15 | Taiwan Semiconductor Manufacturing Company, Ltd. | Interconnect structures and methods of forming the same |
US11011413B2 (en) | 2017-11-30 | 2021-05-18 | Taiwan Semiconductor Manufacturing Company, Ltd. | Interconnect structures and methods of forming the same |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60116776A (ja) * | 1983-11-30 | 1985-06-24 | Fujitsu Ltd | Cvd装置 |
JPH04501886A (ja) * | 1989-04-04 | 1992-04-02 | エス・アール・アイ・インターナシヨナル | 1種もしくはそれ以上の金属反応体とハロゲン含有反応体とを用いて1種もしくはそれ以上の反応性中間体を生成させる材料の低温度形成方法 |
JP2002512307A (ja) * | 1998-04-20 | 2002-04-23 | 東京エレクトロン株式会社 | Cvd室をパッシベーションする方法 |
JP2004285469A (ja) * | 2003-01-31 | 2004-10-14 | Tokyo Electron Ltd | 載置台、処理装置及び処理方法 |
JP2007254868A (ja) * | 2006-03-24 | 2007-10-04 | Jfe Steel Kk | チタン化合物の成膜方法 |
JP2007270309A (ja) * | 2006-03-31 | 2007-10-18 | Tokyo Electron Ltd | プラズマ処理装置 |
JP2008274343A (ja) * | 2007-04-27 | 2008-11-13 | Tokyo Electron Ltd | Ti膜の成膜方法および記憶媒体 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5149514A (en) * | 1989-04-04 | 1992-09-22 | Sri International | Low temperature method of forming materials using one or more metal reactants and a halogen-containing reactant to form one or more reactive intermediates |
US6626186B1 (en) | 1998-04-20 | 2003-09-30 | Tokyo Electron Limited | Method for stabilizing the internal surface of a PECVD process chamber |
EP1090417A1 (en) * | 1999-04-20 | 2001-04-11 | Tokyo Electron Limited | Method for single chamber processing of pecvd-ti and cvd-tin films in ic manufacturing |
JP4429695B2 (ja) | 2002-12-05 | 2010-03-10 | 東京エレクトロン株式会社 | 成膜方法および成膜システム |
JP3574651B2 (ja) | 2002-12-05 | 2004-10-06 | 東京エレクトロン株式会社 | 成膜方法および成膜装置 |
WO2005015622A1 (ja) * | 2003-08-11 | 2005-02-17 | Tokyo Electron Limited | 成膜方法 |
WO2007105432A1 (ja) * | 2006-02-24 | 2007-09-20 | Tokyo Electron Limited | Ti系膜の成膜方法および記憶媒体 |
US8043471B2 (en) | 2006-03-31 | 2011-10-25 | Tokyo Electron Limited | Plasma processing apparatus |
KR20090026186A (ko) * | 2006-07-11 | 2009-03-11 | 도쿄엘렉트론가부시키가이샤 | 성막 방법, 클리닝 방법 및 성막 장치 |
US7976897B2 (en) * | 2007-02-21 | 2011-07-12 | Micron Technology, Inc | Thermal chemical vapor deposition methods, and thermal chemical vapor deposition systems |
KR100882289B1 (ko) * | 2007-04-03 | 2009-02-10 | 후지쯔 마이크로일렉트로닉스 가부시키가이샤 | 반도체 장치 및 그 제조 방법 |
-
2009
- 2009-12-11 WO PCT/JP2009/070724 patent/WO2010067856A1/ja active Application Filing
- 2009-12-11 CN CN2009801501832A patent/CN102245802A/zh active Pending
- 2009-12-11 TW TW098142540A patent/TWI531672B/zh active
- 2009-12-11 JP JP2010542130A patent/JP5492789B2/ja active Active
- 2009-12-11 KR KR1020117013467A patent/KR101282544B1/ko not_active IP Right Cessation
-
2011
- 2011-06-10 US US13/158,120 patent/US8334208B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60116776A (ja) * | 1983-11-30 | 1985-06-24 | Fujitsu Ltd | Cvd装置 |
JPH04501886A (ja) * | 1989-04-04 | 1992-04-02 | エス・アール・アイ・インターナシヨナル | 1種もしくはそれ以上の金属反応体とハロゲン含有反応体とを用いて1種もしくはそれ以上の反応性中間体を生成させる材料の低温度形成方法 |
JP2002512307A (ja) * | 1998-04-20 | 2002-04-23 | 東京エレクトロン株式会社 | Cvd室をパッシベーションする方法 |
JP2004285469A (ja) * | 2003-01-31 | 2004-10-14 | Tokyo Electron Ltd | 載置台、処理装置及び処理方法 |
JP2007254868A (ja) * | 2006-03-24 | 2007-10-04 | Jfe Steel Kk | チタン化合物の成膜方法 |
JP2007270309A (ja) * | 2006-03-31 | 2007-10-18 | Tokyo Electron Ltd | プラズマ処理装置 |
JP2008274343A (ja) * | 2007-04-27 | 2008-11-13 | Tokyo Electron Ltd | Ti膜の成膜方法および記憶媒体 |
Non-Patent Citations (1)
Title |
---|
C.Y.LEE: "The Preparation of Titanium-Based Thin Film by CVD Using Titanium Chlorides as Precursors", CHEMICAL VAPOR DEPOSITION, vol. 5, no. 2, 1999, pages 69 - 73 * |
Also Published As
Publication number | Publication date |
---|---|
KR20110102330A (ko) | 2011-09-16 |
KR101282544B1 (ko) | 2013-07-04 |
TW201035358A (en) | 2010-10-01 |
US8334208B2 (en) | 2012-12-18 |
JP5492789B2 (ja) | 2014-05-14 |
TWI531672B (zh) | 2016-05-01 |
CN102245802A (zh) | 2011-11-16 |
US20110237076A1 (en) | 2011-09-29 |
JPWO2010067856A1 (ja) | 2012-05-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5492789B2 (ja) | 成膜方法および成膜装置 | |
WO2006134930A1 (ja) | 半導体装置の製造方法、及び基板処理装置 | |
WO2015080058A1 (ja) | タングステン膜の成膜方法 | |
KR20100132779A (ko) | 박막 형성 방법 및 이의 제조 장치 | |
JP6426893B2 (ja) | コンタクト層の形成方法 | |
JP6851173B2 (ja) | 成膜装置および成膜方法 | |
US9702039B2 (en) | Graphene forming method | |
TWI726837B (zh) | Ti膜之成膜方法 | |
WO2011033918A1 (ja) | 成膜装置、成膜方法および記憶媒体 | |
WO2006101130A1 (ja) | 成膜装置及び成膜方法 | |
JP2010065309A (ja) | Ti系膜の成膜方法および記憶媒体 | |
JP2012072475A (ja) | 成膜方法及び成膜装置 | |
WO2011040173A1 (ja) | 成膜装置および成膜方法、ならびに基板処理装置 | |
TW202043520A (zh) | 用於填充設置於基板中的特徵的方法及設備 | |
WO2022080153A1 (ja) | 基板処理方法および基板処理装置 | |
KR101302819B1 (ko) | Ti막의 성막 방법 | |
WO2021261289A1 (ja) | 成膜方法及び成膜装置 | |
JP2010111888A (ja) | Ti膜の成膜方法および成膜装置、ならびに記憶媒体 | |
JP2008205325A (ja) | 半導体装置の製造方法、及び基板処理装置 | |
WO2023058460A1 (ja) | チタン膜を形成する方法、及びチタン膜を形成する装置 | |
JP2004214335A (ja) | 成膜方法 | |
JP5659041B2 (ja) | 成膜方法および記憶媒体 | |
TW202314022A (zh) | 雙重鑲嵌內連件中之石墨烯覆蓋銅 | |
JP2012175073A (ja) | 成膜方法および記憶媒体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980150183.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09831959 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2010542130 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20117013467 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09831959 Country of ref document: EP Kind code of ref document: A1 |