WO2017221808A1 - 被処理体を処理する方法 - Google Patents
被処理体を処理する方法 Download PDFInfo
- Publication number
- WO2017221808A1 WO2017221808A1 PCT/JP2017/022156 JP2017022156W WO2017221808A1 WO 2017221808 A1 WO2017221808 A1 WO 2017221808A1 JP 2017022156 W JP2017022156 W JP 2017022156W WO 2017221808 A1 WO2017221808 A1 WO 2017221808A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- supply
- plasma
- frequency power
- processing chamber
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 65
- 239000007789 gas Substances 0.000 claims abstract description 202
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 21
- 150000002367 halogens Chemical class 0.000 claims abstract description 21
- 230000008021 deposition Effects 0.000 claims description 25
- 238000005530 etching Methods 0.000 claims description 16
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 229910000077 silane Inorganic materials 0.000 claims description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 238000009832 plasma treatment Methods 0.000 abstract 1
- 238000000151 deposition Methods 0.000 description 24
- 150000002500 ions Chemical class 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- -1 and in particular Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011800 void material Substances 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
-
- 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
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02274—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
-
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
-
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/42—Silicides
-
- 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
- C23C16/45523—Pulsed gas flow or change of composition over time
-
- 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
-
- 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
- C23C16/56—After-treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/321—Radio frequency generated discharge the radio frequency energy being inductively coupled to the plasma
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/3244—Gas supply means
-
- 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
- H01L21/0217—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 being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
-
- 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
- H01L21/02205—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 the layer being characterised by the precursor material for deposition
- H01L21/02208—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
- H01L21/02211—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound being a silane, e.g. disilane, methylsilane or chlorosilane
-
- 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
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
-
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
-
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
- H01L21/32136—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/332—Coating
- H01J2237/3321—CVD [Chemical Vapor Deposition]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/334—Etching
Definitions
- Embodiments described herein relate generally to a method for processing an object to be processed.
- Patent Document 1 is a semiconductor that employs an STI isolation method so that voids (gap) do not remain even in a groove having a very small width and a high aspect ratio, and no damage is left on the silicon substrate. It is a technology aimed at manufacturing devices.
- a Si-rich silicon oxide film SiO X CY film, X ⁇ 2
- CVD Chemical Vapor Deposition
- Is deposited thicker than the depth of the groove and heat treatment is performed in an oxidizing atmosphere to change the Si-rich silicon oxide film into a SiO 2 film while eliminating internal voids, and then CMP (CMP: Chemical Mechanical Polishing).
- Patent Document 1 reduces voids by performing heat treatment after forming an insulating film in a groove in a state including voids.
- the wafer may be affected by heat due to heat treatment for a long time, and the manufacturing process may become complicated with such heat treatment. Therefore, it is desired to realize a technique capable of reducing voids that can be generated when an insulating film is embedded in a trench while suppressing process complexity.
- a method for treating a workpiece includes (a) a first step of accommodating an object to be processed in a processing chamber of a plasma processing apparatus, and (b) a second step of starting supply of a first gas into the processing chamber after the first step. And (c) a third step for starting supply of high-frequency power for plasma generation into the processing chamber after the second step, and (d) an intermittent second gas into the processing chamber after the third step. And a fourth step of starting the supply of the third gas into the processing chamber.
- the first gas is a nitrogen-containing gas
- the second gas is a gas containing no halogen
- the third gas is a gas containing a halogen.
- the plasma of the second gas generated by the plasma generating high frequency power includes deposition species.
- the plasma of the third gas generated by the plasma generating high frequency power includes etching species.
- the third gas plasma contains the etching species, the film generated on the sidewalls of the trench can be removed.
- the second gas may be a silane-based gas and the second gas may be SiH 4 gas.
- the third gas can be a fluorine-containing gas, and the third gas can be SiF 4 gas.
- the application of the bias power for ion attraction to the mounting table that supports the object to be processed is further started together with the start of the supply of the high frequency power for plasma generation.
- channel of a to-be-processed object is extended toward the substantially perpendicular
- FIG. 1 is a flow diagram illustrating a method according to one embodiment.
- FIG. 2 is a cross-sectional view showing an example of a plasma processing apparatus that performs the method shown in FIG. 3 includes (a) part and (b) part, and (a) part of FIG. 3 is a cross-sectional view schematically showing the state of the object to be processed before each step of the method shown in FIG.
- FIG. 3B is a cross-sectional view schematically showing the state of the object to be processed after each step of the method shown in FIG.
- FIG. 4 is a diagram showing the execution timing of various processes performed in each step of the method shown in FIG.
- FIG. 1 is a flow diagram illustrating a method of an embodiment.
- a method MT according to an embodiment shown in FIG. 1 is a method for processing an object to be processed (hereinafter also referred to as “wafer”).
- a series of steps can be performed using a single plasma processing apparatus.
- FIG. 2 is a diagram illustrating an example of a plasma processing apparatus.
- FIG. 2 schematically shows a cross-sectional structure of a plasma processing apparatus 10 that can be used in various embodiments of a method for processing an object.
- the plasma processing apparatus 10 is an inductively coupled plasma etching apparatus.
- the plasma processing apparatus 10 includes a processing container 1.
- the processing container 1 is provided airtight.
- the processing container 1 includes a conductive material.
- the inner wall surface of the processing container 1 may include a material such as anodized aluminum.
- the processing container 1 is assembled so as to be disassembled, and is grounded by a ground wire 1a.
- the processing container 1 is partitioned into an antenna chamber 3 and a processing chamber 4 by a dielectric wall 2 in the vertical direction.
- the dielectric wall 2 constitutes the ceiling wall of the processing chamber 4.
- the dielectric wall 2 is made of ceramics such as Al 2 O 3 , quartz, or the like.
- a shower casing 11 for supplying a processing gas is fitted into the lower portion of the dielectric wall 2.
- the shower housing 11 is provided in a cross shape and supports the dielectric wall 2 from below.
- the shower casing 11 that supports the dielectric wall 2 is suspended from the ceiling of the processing container 1 by a plurality of suspenders (not shown).
- the shower housing 11 can include a conductive material such as metal.
- the inner surface of the shower housing 11 may include, for example, anodized aluminum so as not to generate contaminants.
- a gas flow path 12 extending along the dielectric wall 2 is formed in the shower housing 11, and a plurality of gas supply holes 12 a extending toward the susceptor 22 communicate with the gas flow path 12.
- a gas supply pipe 20 a is provided in the center of the upper surface of the dielectric wall 2 so as to communicate with the gas flow path 12.
- the gas supply pipe 20a extends from the dielectric wall 2 to the outside of the processing container 1, and is connected to a processing gas supply system 20 including a processing gas supply source and a valve system. In the plasma processing, the processing gas supplied from the processing gas supply system 20 is supplied into the shower housing 11 through the gas supply pipe 20a, and the lower surface of the shower housing 11 (the surface facing the processing chamber 4).
- the gas supply holes 12a are discharged into the processing chamber 4.
- a support shelf 5 protruding inward is provided between the side wall 3 a of the antenna chamber 3 and the side wall 4 a of the processing chamber 4 in the processing container 1, and the dielectric wall 2 is placed on the support shelf 5. .
- a high frequency antenna 13 is disposed on the dielectric wall 2 so as to face the dielectric wall 2.
- the high frequency antenna 13 is separated from the dielectric wall 2 within a range of, for example, 50 mm or less by a spacer 13a made of an insulating member.
- a spacer 13a made of an insulating member.
- four feeding members 16 extending in a direction perpendicular to the upper surface of the dielectric wall 2 (in the vertical direction) are provided.
- the high frequency power supply 15 is connected.
- the power supply member 16 is disposed around the gas supply pipe 20a.
- high-frequency power for plasma generation with a frequency of, for example, about 13.56 [MHz] for forming an induction electric field is supplied from the high-frequency power supply 15 into the processing chamber 4 via the high-frequency antenna 13.
- the induction electric field is formed in the processing chamber 4, and the induction electric field causes the shower housing 11 to enter the processing chamber 4.
- a plasma of the supplied processing gas is generated.
- casing 11 is provided in the cross shape, and even if the shower housing
- a susceptor 22 (mounting table) is provided below the processing chamber 4 (opposite the dielectric wall 2) so as to face the high-frequency antenna 13 with the dielectric wall 2 interposed therebetween.
- a wafer W that is an object to be processed is placed on the susceptor 22.
- the susceptor 22 can include a conductive material.
- the surface of the susceptor 22 can include, for example, anodized aluminum or alumina sprayed aluminum.
- the wafer W placed on the susceptor 22 is attracted and held on the susceptor 22 by an electrostatic chuck (not shown).
- the susceptor 22 is accommodated in the insulator frame 24 and supported by the support column 25.
- the support column 25 has a hollow structure. Between the insulator frame 24 that houses the susceptor 22 and the bottom of the processing container 1 (the side of the processing container 1 where the support column 25 is provided), a bellows 26 that hermetically surrounds the support column 25 is disposed. Yes.
- a loading / unloading port 27a for loading / unloading the wafer W and a gate valve 27 for opening / closing the loading / unloading port 27a are provided on the side wall 4a of the processing chamber 4.
- the susceptor 22 is connected to a high-frequency power source 29 via a matching unit 28 by a power feeding rod 25 a provided in the support column 25.
- the high frequency power supply 29 applies a bias high frequency power, for example, a bias high frequency power having a frequency of about 400 [kHz] to 6 [MHz] to the susceptor 22 during plasma processing.
- the ions in the plasma generated in the processing chamber 4 can be effectively drawn into the wafer W by the high frequency power for bias.
- a temperature control mechanism including a heating means such as a ceramic heater, a refrigerant flow path, and the like, and a temperature sensor are provided in the susceptor 22 (none of which is shown). Piping and wiring for these mechanisms and members are all led out of the processing vessel 1 through the inside of the support column 25.
- An exhaust device 30 including a vacuum pump or the like is connected to the bottom of the processing chamber 4 (the side of the processing chamber 4 where the support column 25 is provided) via an exhaust pipe 31.
- the processing chamber 4 is evacuated by the exhaust device 30, and the inside of the processing chamber 4 is set and maintained at a predetermined vacuum atmosphere (for example, an atmospheric pressure of about 1.33 [Pa]) during the plasma processing.
- the high frequency antenna 13 has four power feeding units (for example, a power feeding unit 41, a power feeding unit 43, and the like).
- the four power supply units are connected to the power supply member 16.
- the four power feeding units are arranged around the center of the high-frequency antenna 13 so as to be separated by about 90 degrees, for example.
- Two antenna wires extend outward from each of the four power feeding units, and each antenna wire is grounded via a capacitor 18.
- the plasma processing apparatus 10 includes a control unit Cnt.
- the control unit Cnt is a computer including a processor, a storage unit, an input device, a display device, and the like, and controls each unit of the plasma processing apparatus 10.
- the control unit Cnt operates according to a program based on the input recipe and sends out a control signal. According to a control signal from the control unit Cnt, the selection and flow rate of the gas supplied from the processing gas supply system 20, the exhaust of the exhaust device 30, the power supply from the high frequency power supply 15 and the high frequency power supply 29, and the temperature of the susceptor 22 , Can be controlled. Note that each step (steps S1 to S7 shown in FIG. 1) of the method (method MT) for processing an object to be processed disclosed in this specification operates each unit of the plasma processing apparatus 10 under the control of the control unit Cnt. Can be implemented.
- Part (a) of FIG. 3 is a cross-sectional view schematically showing the state of the object to be processed before each step of the method MT shown in FIG.
- Part (b) of FIG. 3 is a cross-sectional view schematically showing the state of the object to be processed after each step of the method shown in FIG.
- FIG. 4 is a diagram showing the execution timing of various processes performed in each step of the method MT shown in FIG.
- the method MT shown in FIG. 1 includes steps S1 to S7 as main steps of the method MT.
- step S ⁇ b> 1 first step
- the wafer W accommodated in the processing chamber 4 in the step S1 includes a main surface 61 as shown in FIG.
- the wafer W includes one or a plurality of grooves 62.
- the groove 62 is formed in the main surface 61.
- the groove 62 includes a bottom 62a and a side wall 62b.
- the groove 62 extends from the main surface 61 of the wafer W in a direction substantially perpendicular to the main surface 61.
- the material defining the groove 62 is, for example, silicon.
- step S2 (second step) starts supplying the first gas into the processing chamber 4.
- the pressure in the processing chamber 4 can be adjusted to a value suitable for plasma formation.
- the supply of the first gas into the processing chamber 4 is started at time T1 (the supply of the first gas is turned from OFF to ON).
- Graph G1 shows the start timing and end timing of the supply of the first gas into the processing chamber 4 in the method MT.
- the supply of the first gas into the processing chamber 4 is continued until time T9 after time T8 has elapsed. Time T8 is a time after time T1.
- the first gas is a nitrogen-containing gas, and may be, for example, nitrogen gas (N 2 gas), ammonia (NH 3 ), or nitrogen oxide (NO, NO 2 ).
- the time T9 may be a timing at which the supply of the first gas and the third gas is ended (OFF).
- step S3 third step
- step S4 fourth step
- plasma CVD CVD: Chemical Vapor Deposition
- step S3 supply of high-frequency power for plasma generation into the processing chamber 4 is started.
- the supply of the plasma generating high frequency power into the processing chamber 4 is started at time T2 (the supply of the plasma generating high frequency power is switched from OFF to ON).
- Graph G2 shows the start timing and end timing of supply of high-frequency power for plasma generation into process chamber 4 in method MT.
- the supply of the high frequency power for plasma generation into the processing chamber 4 is continued until time T8.
- the high frequency power for plasma generation supplied into the processing chamber 4 can be constant or change during the supply.
- Time T2 is a time after time T1 and before time T8.
- step S6 step for ending the supply of high-frequency power for plasma generation
- ions for supplying ions to the susceptor 22 (mounting table) that supports the wafer W as well as the start of supply of high-frequency power for plasma generation.
- bias power for ion attraction
- the bias power for ion attraction may be high frequency power for bias supplied from the high frequency power supply 29, but is not limited to this, and may be direct current power such as pulse direct current power that can be supplied from a direct current power supply (not shown).
- the groove 62 extends from the main surface 61 of the wafer W in a direction substantially perpendicular to the main surface 61.
- the wafer W is placed substantially horizontally on the susceptor 22 (mounting table), it is applied to the susceptor 22. Since ions attracted by the bias power are irradiated substantially perpendicularly to the wafer W, the ions are irradiated anisotropically toward the bottom of the groove 62.
- step S4 intermittent supply of the second gas into the processing chamber 4 is started and supply of the third gas into the processing chamber 4 is started.
- the supply of the second gas into the processing chamber 4 is started at time T3 (the supply of the second gas is changed from OFF to ON). Further, ON and OFF are alternately repeated.)
- the supply of the third gas into the processing chamber 4 is started (the supply of the third gas is switched from OFF to ON).
- Graph G3 shows the start timing and end timing of the supply of the third gas into the processing chamber 4 in the method MT.
- the graph G4 shows the timing of intermittent supply of the second gas into the processing chamber 4 and the end timing in the method MT.
- Times T3 and T4 are times after time T2 and before time T7.
- the time T3 is the time before the time T4 or the same time as the time T4 (T3 ⁇ T4).
- Time T7 is a time before time T8.
- the second gas is intermittently supplied into the processing chamber 4.
- the supply of the second gas can be alternately repeated ON and OFF periodically.
- Times T5 and T6 are times after time T4 and before time T7.
- Time T5 is a time before time T6.
- Each value of the periods ⁇ T1 and ⁇ T2 can be controlled to a constant value until the time T7 when the supply of the second gas ends, but can also be controlled to change.
- ⁇ T1 may be 0.1 to 10 [s]
- ⁇ T2 may be 0.1 to 30 [s]
- the ratio of ⁇ T1 and ⁇ T2 ( ⁇ T1 / ⁇ T2) may be 1 to 3.
- the value of the period ⁇ T1 and the value of the period ⁇ T2 can vary depending on parameters (high-frequency power, bias power, gas flow rate / pressure, temperature) that affect film deposition, but these parameters should be optimally controlled.
- the film 63 can be deposited only on the bottom 62a of the groove 62 while sufficiently suppressing the film deposition on the side wall 62b of the groove 62.
- the number of repetitions of ON / OFF of the supply of the second gas is determined according to the thickness of the film 63 formed in the groove 62. The more the number of repetitions of the ON / OFF of the supply of the second gas, the greater the number of repetitions of the groove 62.
- the thickness of the film 63 formed inside increases.
- the supply timing of the third gas is the same as the supply timing of the second gas or after the supply timing of the second gas. When the supply timing of the third gas is later than the supply timing of the second gas, the delay time (the difference between the supply timing of the third gas and the supply timing of the second gas, for example, from the time T3 The time until the time T4 is at most equal to the period ⁇ T1.
- the plasma of the second gas generated by the high-frequency power for generating plasma in step S4 includes deposition species.
- the second gas is a gas containing no halogen.
- the second gas is a silane-based gas, and in particular may be SiH 4 gas.
- the plasma of the third gas generated by the plasma generating high frequency power in step S4 includes an etching species.
- the third gas is a gas containing halogen.
- the third gas is a gas containing fluorine, and in particular may be SiF 4 gas.
- step S5 (fifth step)
- supply of the first gas started in step S2 supply of high-frequency power for plasma generation started in step S3, and third gas started in step S4
- the intermittent supply of the second gas started in step S4 is terminated while continuing the supply of the gas.
- the intermittent supply of the second gas is terminated at time T7 (the supply of the second gas is maintained OFF).
- the supply of the first gas, the supply of the high frequency power for plasma generation, and the supply of the third gas are continued.
- the value of the period ⁇ T3 in which the supply of the first gas, the supply of the third gas, and the supply of the high frequency power for plasma generation continues from the value (t8) at the time T8 to the time T7.
- the value of the period ⁇ T3 can be set to be the same as the time from the start of the second gas supply (time T3) to the start of the third gas supply (time T4). That is, when the value of time T3 is t3 and the value of time T4 is t4, the value can be set to be the same as the value (t4 ⁇ t3) obtained by subtracting the value t3 of time T3 from the value of time T4 (t4). . In this case, the maximum value of ⁇ T3 can be set to be the same as ⁇ T1.
- step S6 (sixth step), the plasma started in step S3 while continuing the supply of the first gas started in step S2 and the supply of the third gas started in step S4.
- the supply of high-frequency power for generation is terminated.
- the supply of the high frequency power for plasma generation is terminated (the supply of the high frequency power for plasma generation is maintained OFF).
- the supply of the second gas has already been completed, but the supply of the first gas and the supply of the third gas are continued.
- step S6 the application of the ion attractive bias power started in step S3 is completed together with the end of the supply of the plasma generating high frequency power.
- step S6 in step S7, as shown in graphs G1 and G3 in FIG. 4, at time T9 after time T8, the supply of the first gas and the supply of the third gas is ended (time T9). Thereafter, the supply of the first gas and the supply of the third gas are maintained OFF).
- the film 63 can be satisfactorily formed in the groove 62 without voids by the above-described method MT. Since nitrogen gas (first gas) is used to form the film 63, the film 63 is a nitride film containing nitrogen. Although a film can be formed also in the portion between the grooves 62 on the main surface 61 by the method MT, it does not affect the respective steps of the present invention or the insulating film embedded in the grooves 62. A film formed in a portion between the grooves 62 on the main surface 61 is removed by a CMP method (CMP: Chemical Mechanical Polishing) in a later step. FIG. 3B shows a state of the groove 62 after the film formed on the main surface 61 is removed by the CMP method or the like.
- CMP Chemical Mechanical Polishing
- the film 63 is formed in the groove 62 of the wafer W by using the plasma of the third gas containing halogen together with the plasma of nitrogen gas, the film 63 is formed on the bottom 62a of the groove 62 while the film 63 is formed.
- the side wall 62b of the groove 62 can be scraped by the halogen contained in the third gas, the inventors have intensively studied that the etching of the side wall 62b of the groove 62 by the halogen contained in the third gas does not contain the halogen.
- the deposition of a film on the side wall 62b of the groove 62 by the second gas can be suppressed by applying the plasma of the second gas, and that the halogen contained in the third gas can also suppress the film deposition.
- the side wall of the groove 62 can be adjusted by adjusting the gas type used for the plasma and the supply timing of the gas type without complicating the process.
- the film 63 can be deposited on the bottom 62a of the groove 62 while sufficiently suppressing the film deposition on the 62b, the film 63 can be satisfactorily formed without voids inside the groove 62. Further, by intermittently supplying the second gas, the deposition of the film on the side wall 62b of the groove 62 by the second gas is suppressed, and the side wall 62b of the groove 62 is removed from the etching by the halogen contained in the third gas. A protective film necessary and sufficient for protection can be formed on the side wall 62b of the groove 62, so that no film is deposited on the side wall 62b of the groove 62 and the side wall 62b of the groove 62 is not etched. The film 63 can be satisfactorily deposited without voids at the bottom 62a.
- the plasma of the second gas contains the deposition species
- a protective film against the halogen contained in the third gas can be generated on the side wall 62b of the groove 62.
- the plasma of the third gas includes the etching species, the film generated on the side wall 62b of the groove 62 can be removed.
- the second gas is a silane-based gas, in particular, a SiH 4 gas
- the plasma of the second gas may include a deposition species.
- the third gas is a gas containing fluorine, and in particular, SiF 4 gas
- the plasma of the third gas may contain an etching species.
- the process S6 since the supply of the second gas and the supply of the high frequency power for plasma generation are completed in the state where the supply of the first gas and the supply of the third gas are continued by the steps S5 and S6, the process S6 However, even if the film is still deposited on the side wall 62b of the groove 62, the film is formed by the halogen contained in the continuously supplied third gas. Can be removed. In addition, since the third gas is used in a state other than plasma after step S6, the effect of etching with the halogen of the third gas is suppressed, and therefore the etching of the film with the third gas is moderate. Can be done.
- ions in the plasma are good from the main surface 61 of the wafer W to the bottom 62a of the groove 62 along the groove 62. Can reach. Accordingly, the unevenness that can occur on the surface of the film 63 (nitride film) formed on the bottom 62a of the groove 62 can be sufficiently reduced, and the surface of the film 63 formed on the bottom 62a of the groove 62 is relatively Can be uniform and flat.
- the halogen separated in the plasma contained in the third gas becomes a radical etching species and isotropically etches the film.
- deposition species that contribute to film formation can be generated together with radical etching species.
- the deposition species generated from the third gas include a radical deposition species and an ionic deposition species. Radical deposition species contribute isotropically to film formation.
- the ionic deposition species is also affected by bias, and can contribute to film formation at the bottom 62a more anisotropically. Normally, a large amount of radical etching species can be generated.
- the deposition species have many ionic deposition species and few radical deposition species, a film is formed at the bottom 62a of the groove 62.
- the side wall 62b may be etched more excessively, and the side wall 62b may be excessively etched.
- the second gas since the plasma of the second gas does not contain halogen, etching species are not generated, and radical deposition species and ionic deposition species are generated. . Radical deposition species contribute isotropically to film formation. The ionic deposition species also has an influence of bias and contributes to film formation anisotropically, so that the film is more easily deposited on the bottom 62a.
- the amount of the second gas not containing halogen independently of the third gas, the film formation on the side wall 62b can be promoted simultaneously with the film formation on the bottom 62a.
- Example 1 Step S4 can be performed, for example, under the following conditions.
- -Pressure value in the processing chamber 4 [Pa]: 0.1 to 10 [Pa] The value of the frequency of the high frequency power supply 15 [MHz] and the value of the high frequency power [watts]: 13.56 [MHz], 100 to 5000 [watts] -Frequency value [MHz] of the high frequency power supply 29 and bias power value [Watt]: 0.1 to 6 [MHz], 100 to 1000 [Watt]
- Processing gas N 2 gas (first gas), SiH 4 gas (second gas), SiF 4 gas (third gas)
- SYMBOLS 1 Processing container, 10 ... Plasma processing apparatus, 11 ... Shower housing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Electromagnetism (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Plasma Technology (AREA)
- Chemical Vapour Deposition (AREA)
- Formation Of Insulating Films (AREA)
- Drying Of Semiconductors (AREA)
Abstract
Description
工程S4は、例えば以下の条件で実施され得る。
・処理室4内の圧力の値[Pa]:0.1~10[Pa]
・高周波電源15の周波数の値[MHz]および高周波電力の値[ワット]:13.56[MHz]、100~5000[ワット]
・高周波電源29の周波数の値[MHz]およびバイアス電力の値[ワット]:0.1~6[MHz]、100~1000[ワット]
・処理ガス:N2ガス(第1のガス)、SiH4ガス(第2のガス)、SiF4ガス(第3のガス)
・処理ガスの流量[sccm]:(N2ガス)1~500[sccm]、(SiH4ガス)1~300[sccm]、(SiF4ガス)1~100[sccm]
・第2のガスの供給のONの時間およびOFFの時間[s]:(ONの時間)0.1~10[s]、(OFFの時間)0.1~30[s]
なお、第2のガスの供給のONおよびOFFの繰返し数や、全体の処理時間(方法MTの実行時間であり時刻T1から時刻T9に至るまでの時間)は、膜63の埋め込みのパターン(溝62の形状)や埋め込む厚さ(溝62の深さ)、等の種々の要因によって決定され得る。
Claims (9)
- 被処理体を処理する方法であって、該被処理体は、該被処理体の主面に溝が形成されており、該方法は、
プラズマ処理装置の処理室内に前記被処理体を収容する第1工程と、
前記第1工程の後に、前記処理室内への第1のガスの供給を開始する第2工程と、
前記第2工程の後に、前記処理室内へのプラズマ生成用高周波電力の供給を開始する第3工程と、
前記第3工程の後に、前記処理室内への第2のガスの断続的な供給を開始すると共に、該処理室内への第3のガスの供給を開始する第4工程と、
を備え、
前記第1のガスは、窒素含有ガスであり、
前記第2のガスは、ハロゲンを含まないガスであり、
前記第3のガスは、ハロゲンを含むガスである、
方法。 - 前記プラズマ生成用高周波電力によって生成される前記第2のガスのプラズマは、デポジション種を含む、
請求項1に記載の方法。 - 前記プラズマ生成用高周波電力によって生成される前記第3のガスのプラズマは、エッチング種を含む、
請求項1または請求項2に記載の方法。 - 前記第2のガスは、シラン系ガスである、
請求項1~3の何れか一項に記載の方法。 - 前記第2のガスは、SiH4ガスである、
請求項4に記載の方法。 - 前記第3のガスは、フッ素を含むガスである、
請求項1~5の何れか一項に記載の方法。 - 前記第3のガスは、SiF4ガスである、
請求項6に記載の方法。 - 前記第4工程の後に、前記第2工程で開始した前記第1のガスの供給と、前記第3工程で開始した前記プラズマ生成用高周波電力の供給と、該第4工程で開始した前記第3のガスの供給とを継続しつつ、該第4工程で開始した前記第2のガスの供給を終了する第5工程と、
前記第5工程の後に、前記第2工程で開始した前記第1のガスの供給と、前記第4工程で開始した前記第3のガスの供給とを継続しつつ、前記第3工程で開始した前記プラズマ生成用高周波電力の供給を終了する第6工程と、
をさらに備える、
請求項1~7の何れか一項に記載の方法。 - 前記第3工程は、前記プラズマ生成用高周波電力の供給の開始と共に、前記被処理体を支持する載置台へのイオン引き込み用バイアス電力の印加をさらに開始し、
前記被処理体の前記溝は、該被処理体の前記主面から該主面に対し略垂直方向に向けて延びている、
請求項1~8の何れか一項に記載の方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018524000A JP6606609B2 (ja) | 2016-06-20 | 2017-06-15 | 被処理体を処理する方法 |
US16/310,520 US10763106B2 (en) | 2016-06-20 | 2017-06-15 | Method for processing workpiece |
KR1020197001252A KR102456224B1 (ko) | 2016-06-20 | 2017-06-15 | 피처리체를 처리하는 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016-121826 | 2016-06-20 | ||
JP2016121826 | 2016-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017221808A1 true WO2017221808A1 (ja) | 2017-12-28 |
Family
ID=60784770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/022156 WO2017221808A1 (ja) | 2016-06-20 | 2017-06-15 | 被処理体を処理する方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10763106B2 (ja) |
JP (1) | JP6606609B2 (ja) |
KR (1) | KR102456224B1 (ja) |
WO (1) | WO2017221808A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021066959A (ja) * | 2019-10-25 | 2021-04-30 | エーエスエム・アイピー・ホールディング・ベー・フェー | 膜堆積プロセスにおける通常のパルスプロファイルの修正 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019035830A1 (en) * | 2017-08-16 | 2019-02-21 | Ecosense Lighting Inc | MULTI-CHANNEL WHITE LIGHT DEVICE FOR HIGH-COLOR RENDERABLE WHITE LED ACCORDING LIGHT DELIVERY |
SG11202000620SA (en) * | 2017-09-13 | 2020-02-27 | Kokusai Electric Corp | Substrate treatment apparatus, method for manufacturing semiconductor device, and program |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0845857A (ja) * | 1994-07-27 | 1996-02-16 | Nec Corp | プラズマcvd方法とプラズマcvd制御装置 |
JPH10340900A (ja) * | 1997-06-03 | 1998-12-22 | Applied Materials Inc | 低誘電率膜用高堆積率レシピ |
JP2005166911A (ja) * | 2003-12-02 | 2005-06-23 | Seiko Epson Corp | 半導体装置の製造方法、半導体装置、電気光学装置の製造方法、電気光学装置および電子機器 |
JP2007042819A (ja) * | 2005-08-02 | 2007-02-15 | Denso Corp | 半導体装置およびその製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3325793B2 (ja) * | 1996-03-22 | 2002-09-17 | 三洋電機株式会社 | 非晶質半導体及びその製造方法並びに光起電力装置 |
JP3450221B2 (ja) | 1999-04-21 | 2003-09-22 | Necエレクトロニクス株式会社 | 半導体装置の製造方法 |
JP5374638B2 (ja) * | 2010-04-09 | 2013-12-25 | 株式会社日立国際電気 | 半導体装置の製造方法、基板処理方法および基板処理装置 |
JP2014060378A (ja) * | 2012-08-23 | 2014-04-03 | Tokyo Electron Ltd | シリコン窒化膜の成膜方法、有機電子デバイスの製造方法及びシリコン窒化膜の成膜装置 |
US9543158B2 (en) * | 2014-12-04 | 2017-01-10 | Lam Research Corporation | Technique to deposit sidewall passivation for high aspect ratio cylinder etch |
JP6494411B2 (ja) * | 2014-06-24 | 2019-04-03 | 東京エレクトロン株式会社 | 成膜方法および成膜装置 |
-
2017
- 2017-06-15 US US16/310,520 patent/US10763106B2/en active Active
- 2017-06-15 JP JP2018524000A patent/JP6606609B2/ja active Active
- 2017-06-15 KR KR1020197001252A patent/KR102456224B1/ko active IP Right Grant
- 2017-06-15 WO PCT/JP2017/022156 patent/WO2017221808A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0845857A (ja) * | 1994-07-27 | 1996-02-16 | Nec Corp | プラズマcvd方法とプラズマcvd制御装置 |
JPH10340900A (ja) * | 1997-06-03 | 1998-12-22 | Applied Materials Inc | 低誘電率膜用高堆積率レシピ |
JP2005166911A (ja) * | 2003-12-02 | 2005-06-23 | Seiko Epson Corp | 半導体装置の製造方法、半導体装置、電気光学装置の製造方法、電気光学装置および電子機器 |
JP2007042819A (ja) * | 2005-08-02 | 2007-02-15 | Denso Corp | 半導体装置およびその製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021066959A (ja) * | 2019-10-25 | 2021-04-30 | エーエスエム・アイピー・ホールディング・ベー・フェー | 膜堆積プロセスにおける通常のパルスプロファイルの修正 |
JP7330935B2 (ja) | 2019-10-25 | 2023-08-22 | エーエスエム・アイピー・ホールディング・ベー・フェー | 膜堆積プロセスにおける通常のパルスプロファイルの修正 |
Also Published As
Publication number | Publication date |
---|---|
US20190189437A1 (en) | 2019-06-20 |
JP6606609B2 (ja) | 2019-11-13 |
KR20190019154A (ko) | 2019-02-26 |
US10763106B2 (en) | 2020-09-01 |
JPWO2017221808A1 (ja) | 2019-05-16 |
KR102456224B1 (ko) | 2022-10-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20210010160A1 (en) | Method and apparatus for precleaning a substrate surface prior to epitaxial growth | |
TWI775819B (zh) | 蝕刻方法 | |
TWI779753B (zh) | 電漿處理裝置及被處理體處理方法 | |
KR20180130596A (ko) | 플라즈마 프로세싱 챔버에서의 인-시튜 챔버 세정 효율 향상을 위한 플라즈마 처리 프로세스 | |
JP6606609B2 (ja) | 被処理体を処理する方法 | |
KR20190008227A (ko) | 에칭 방법 | |
US9786473B2 (en) | Method of processing workpiece | |
US9520302B2 (en) | Methods for controlling Fin recess loading | |
WO2018212045A1 (ja) | 多孔質膜をエッチングする方法 | |
TW201703098A (zh) | 上部電極之表面處理方法、電漿處理裝置及上部電極 | |
TWI759348B (zh) | 被處理體之處理方法 | |
JP6085106B2 (ja) | プラズマ処理装置およびプラズマ処理方法 | |
KR102436210B1 (ko) | 피처리체를 처리하는 방법 | |
TWI757442B (zh) | 成膜方法 | |
JP2007184611A (ja) | プラズマ処理装置およびプラズマ処理方法 | |
JP7061981B2 (ja) | プラズマエッチング装置およびプラズマエッチング方法 | |
TW202300689A (zh) | 用於處理基板的方法及設備 | |
WO2019146267A1 (ja) | 反応性イオンエッチング装置 | |
JPH1022262A (ja) | ドライエッチング方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2018524000 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17815276 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20197001252 Country of ref document: KR Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 17815276 Country of ref document: EP Kind code of ref document: A1 |