WO2015060541A1 - 어모퍼스 실리콘막의 증착 방법 및 증착 장치 - Google Patents
어모퍼스 실리콘막의 증착 방법 및 증착 장치 Download PDFInfo
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- WO2015060541A1 WO2015060541A1 PCT/KR2014/008571 KR2014008571W WO2015060541A1 WO 2015060541 A1 WO2015060541 A1 WO 2015060541A1 KR 2014008571 W KR2014008571 W KR 2014008571W WO 2015060541 A1 WO2015060541 A1 WO 2015060541A1
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- Prior art keywords
- amorphous silicon
- silicon film
- gas
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- deposition
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- 229910021417 amorphous silicon Inorganic materials 0.000 title claims abstract description 47
- 238000000151 deposition Methods 0.000 title claims description 36
- 238000000034 method Methods 0.000 title claims description 21
- 239000007789 gas Substances 0.000 claims abstract description 78
- 239000001307 helium Substances 0.000 claims abstract description 21
- 229910052734 helium Inorganic materials 0.000 claims abstract description 21
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 14
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000001257 hydrogen Substances 0.000 claims abstract description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000008021 deposition Effects 0.000 claims description 25
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- 229910000077 silane Inorganic materials 0.000 claims description 7
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 claims description 6
- 238000005137 deposition process Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 229910007264 Si2H6 Inorganic materials 0.000 abstract description 3
- 229910003915 SiCl2H2 Inorganic materials 0.000 abstract 1
- XMIJDTGORVPYLW-UHFFFAOYSA-N [SiH2] Chemical compound [SiH2] XMIJDTGORVPYLW-UHFFFAOYSA-N 0.000 abstract 1
- 239000010408 film Substances 0.000 description 38
- 230000003746 surface roughness Effects 0.000 description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 17
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021423 nanocrystalline silicon Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
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- 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
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- 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
- C23C16/24—Deposition of silicon only
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- 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
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
- C23C16/4405—Cleaning of reactor or parts inside the reactor by using reactive gases
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- 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
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02439—Materials
- H01L21/02441—Group 14 semiconducting materials
- H01L21/0245—Silicon, silicon germanium, germanium
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
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- H01L21/02532—Silicon, silicon germanium, germanium
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- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/0262—Reduction or decomposition of gaseous compounds, e.g. CVD
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having 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
- H01L21/28525—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 semiconducting material
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having 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
- H01L21/32055—Deposition of semiconductive layers, e.g. poly - or amorphous silicon layers
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
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- H—ELECTRICITY
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- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/20—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor materials
- H01L31/202—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor materials including only elements of Group IV of the Periodic Table
Definitions
- the present invention relates to a method and apparatus for depositing an amorphous silicon film, and more particularly, to a method and apparatus for depositing an amorphous silicon film using an atmosphere gas.
- Amorphous silicon is used for embedding contact holes or lines in semiconductor integrated circuit devices, but with the recent miniaturization of semiconductor integrated circuit devices, the standards for embedding contact holes and lines have become increasingly strict.
- the amorphous silicon may have poor coverage or large voids in the contact hole portion. If large voids occur in contact holes or lines, this may be one of the factors of increasing the resistance value, for example. In addition, poor precision of surface roughness may also be a factor.
- An object of the present invention is to provide a method and a deposition apparatus for depositing an amorphous silicon film which can improve the precision of surface roughness.
- Another object of the present invention is to provide an amorphous silicon film deposition method and a deposition apparatus that can cope with miniaturization of contact holes, lines, and the like.
- an amorphous silicon film is deposited on the substrate by supplying a source gas and an atmosphere gas while the substrate is loaded in the chamber, and the atmosphere gas is at least one of hydrogen and helium.
- the source gas may be one or more of silane (SiH 2), disilane (Si 2 H 6), dichlorosilane (SiCl 2 H 2).
- the flow rate of the source gas is 0.5 ⁇ 300 sccm, the flow rate of the atmosphere gas may be 100 ⁇ 25000 sccm.
- the deposition process may be performed at 1 to 300 Torr.
- the deposition process may be performed at 200 ⁇ 800 °C.
- an amorphous silicon film deposition apparatus includes a chamber providing an internal space in which a process is performed on a substrate; A substrate support provided in the chamber to support the substrate; First and second supply lines connected to an introduction part formed at one side of the chamber, and supplying a source gas and an atmosphere gas to the inside of the chamber through the introduction part; And first and second storage tanks respectively connected to the first and second supply lines and storing the source gas and the atmosphere gas, wherein the atmosphere gas is any one of hydrogen and helium.
- the precision of the surface roughness may be further improved.
- it can cope with miniaturization of contact holes, lines, and the like.
- FIG. 1 is a view schematically showing an apparatus for depositing an amorphous silicon film according to an embodiment of the present invention.
- FIG. 2 is a graph showing the deposition results of an amorphous silicon film containing nitrogen gas as an atmospheric gas.
- FIG. 3 is a graph showing the deposition results of an amorphous silicon film containing helium gas as an atmospheric gas.
- FIG. 4 is a graph comparing the deposition rate of an amorphous silicon film having an atmosphere gas of nitrogen gas and helium gas according to the deposition temperature.
- 5 is a graph showing surface roughness according to an atmospheric gas.
- FIGS. 1 to 5 Embodiments of the invention may be modified in various forms, the scope of the invention should not be construed as limited to the embodiments described below. These embodiments are provided to explain in detail the present invention to those skilled in the art. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a more clear description.
- amorphous silicon is not only a term referring to amorphous silicon below, amorphous silicon, nanocrystalline silicon and amorphous silicon and the amorphous silicon in which amorphous-to-nano sized grains that can achieve the precision of surface roughness described below are gathered.
- Nanocrystalline silicon includes both mixed silicon.
- FIG. 1 is a view schematically showing an apparatus for depositing an amorphous silicon film according to an embodiment of the present invention.
- chemical vapor deposition is a process of forming a thin film on a semiconductor substrate by inducing a chemical reaction with the substrate by supplying a gas source gas.
- the chamber 11 provides an internal space that is blocked from the outside, and an introduction part 12 for introducing a source gas into the internal space is provided at an upper portion of the chamber 11.
- the introduction part 12 is connected to the main supply line 12a and the first supply line 18a and the second supply line 19a connected to the main supply line 12a.
- the first supply line 18a supplies the source gas into the chamber 11, and the second supply line 18b supplies the atmosphere gas into the chamber 11.
- the source gas may be a silane-based gas including silane (SiH 2), disilane (Si 2 H 6), dichlorosilane ((SiCl 2 H 2, DCS), and the atmosphere gas is one or more of hydrogen and helium. It is stored in the first storage tank 18d connected to 18a, and the atmosphere gas is stored in the second storage tank 19d connected to the second supply line 19a.
- a first flow controller 18b and a first valve 18c are installed on the first supply line 18a, and a second flow controller 19b and a second valve 19c are provided on the second supply line 19a. Is installed. Meanwhile, the gas introduced by the introduction part 12 is injected into the chamber 11 through the shower head 13 installed in the chamber 11.
- the wafer 15 to be deposited is placed on the heater 14, and the heater 14 heats the wafer 15 in a state supported by the heater support 16 to form a process temperature.
- the unreacted gas and the reaction by-product inside the chamber 11 are discharged by the vacuum port 17.
- a discharge line 17a and a vacuum pump 17b are connected to the vacuum port 17 to forcibly discharge the unreacted gas and the reaction byproduct inside the chamber 11.
- the process pressure inside the chamber 11 may be adjusted using the discharge line 17a and the vacuum pump 17b.
- the source gas and the atmosphere gas are supplied into the chamber 11 on the wafer 15, and the amorphous silicon film is deposited on the wafer 15 through the source gas decomposed by the pyrolysis of the heater 14. do.
- the heater 14 for adjusting the process temperature, the vacuum pump 17b for adjusting the process pressure, and the first and second flow controllers 18b, 19b for adjusting the supply flow rates of the source gas and the atmosphere gas Is controlled through the control unit 20.
- the controller 20 adjusts the process temperature in the chamber 11 to 200 to 800 ° C., and adjusts the process pressure in the chamber 11 to 1 to 300 Torr.
- the controller 20 adjusts the supply flow rate of the source gas to 0.5 to 300 sccm, and adjusts the supply flow rate of the atmosphere gas to 100 to 25000 sccm.
- the wafer 15 is loaded into the chamber 11, and then an amorphous silicon film is deposited on the wafer 15 by supplying the source gas and the atmosphere gas at about the same time.
- the source gas may be a silane-based gas including silane (SiH 2), disilane (Si 2 H 6), and dichlorosilane ((SiCl 2 H 2, DCS).
- the wafer 15 may be formed of a chamber in a state in which a seed layer is formed on an upper surface thereof. 11) Loaded inside, an amorphous silicon film may be formed on the seed layer.
- FIG. 2 is a graph showing deposition results of amorphous silicon films using nitrogen gas as an atmosphere gas, each amorphous when deposited at 530 ° C. and 540 ° C. at a thickness of 1000 mm and at 550 ° C. and 570 ° C. at 7500 mm.
- FIG. 3 is a graph showing deposition results of an amorphous silicon film containing helium gas as an atmosphere gas, each amorphous when deposited at 530 ° C. and 540 ° C. at a thickness of 1000 mm and at 550 ° C. and 570 ° C. at 7500 mm. The surface roughness of the silicon film is shown.
- the thickness of the amorphous silicon film is 1 nm or less when the thickness of the amorphous silicon film is 1000 mW, or 2 nm or more when the thickness of the amorphous silicon film is 7500 mW. That is, it can be seen that the surface roughness increases rapidly as the thickness of the amorphous silicon film increases.
- the thickness of the amorphous silicon film increases.
- the thickness of the amorphous silicon film is 1 nm or less when the thickness of the amorphous silicon film is 1000 mW, and 1 nm or less even when the thickness of the amorphous silicon film is 7500 mW. That is, it can be seen that the surface roughness is maintained at the same level despite the increase in the thickness of the amorphous silicon film.
- a batch type deposition apparatus exhibits an improved surface roughness compared to a single type deposition apparatus shown in FIG. 1, and the surface roughness increases as the thickness of the thin film increases.
- the surface roughness of the amorphous silicon film shows the same level regardless of the thickness of the thin film.
- the surface roughness shows the same surface roughness as that of the batch deposition apparatus.
- FIG. 4 is a graph comparing the deposition rate ( ⁇ s / sec) of an amorphous silicon film having an atmosphere gas of nitrogen gas and helium gas according to the deposition temperature.
- FIG. 5 is a graph showing surface roughness according to an atmospheric gas.
- An amorphous silicon film was deposited under the conditions shown in Table 1 below, with the atmospheric gas being nitrogen, argon, helium, and hydrogen, and the source gas being disilane (Si2H6).
- helium exhibited improved surface roughness compared to argon as well as nitrogen. That is, although nitrogen and argon exhibited surface roughness of more than 0.3, helium shows surface roughness of less than 0.3 (nm), and it can be seen that surface roughness of 15% or more can be improved.
- hydrogen showed an improved surface roughness than helium, and also showed a higher value (0.76) than helium (0.72 kPa) in the deposition rate.
- the amorphous silicon film described above is useful for embedding a contact hole formed in an interlayer insulating film containing a silicon oxide film or a silicon nitride film, or for embedding a line formed in the interlayer insulating film, for example, a groove for internal wiring.
- a contact hole formed in an interlayer insulating film containing a silicon oxide film or a silicon nitride film
- a line formed in the interlayer insulating film for example, a groove for internal wiring.
- the surface roughness of the amorphous silicon film is large, large voids may occur when the contact hole is embedded, while when the surface roughness of the amorphous silicon film is small, the voids become small, thereby preventing an increase in the resistance value of the amorphous silicon film embedded in the contact hole. Can be.
- the present invention can be applied to various types of semiconductor manufacturing equipment and manufacturing methods.
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Abstract
Description
분위기가스 | 공정온도(℃) | 디실란(sccm) | 분위기가스(sccm) | 압력 | 증착율(Å/sec) | 두께(Å) |
질소 | 530 | 30 | 20000 | 30 | 0.7 | 50 |
아르곤 | 18000 | 0.79 | ||||
헬륨 | 12000 | 0.72 | ||||
수소 | 8000 | 0.76 |
Claims (7)
- 챔버 내부에 기판을 로딩한 상태에서 소스 가스와 분위기 가스를 공급하여 상기 기판 상에 어모퍼스 실리콘 막을 증착하되,상기 분위기 가스는 수소와 헬륨 중 하나 이상인, 어모퍼스 실리콘막의 증착 방법.
- 제1항에 있어서,상기 소스 가스는 실란(SiH2), 디실란(Si2H6), 디클로로실란(SiCl2H2) 중 하나 이상인, 어모퍼스 실리콘막의 증착 방법.
- 제1항에 있어서,상기 소스 가스의 유량은 0.5 ~ 300 sccm이며,상기 분위기 가스의 유량은 100 ~ 25000 sccm인, 어모퍼스 실리콘막의 증착 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서,상기 증착공정은 1 ~ 300 Torr에서 이루어지는, 어모퍼스 실리콘막의 증착 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서,상기 증착공정은 200~800℃에서 이루어지는, 어모퍼스 실리콘 막의 증착방법.
- 기판에 대한 공정이 이루어지는 내부공간을 제공하는 챔버;상기 챔버 내에 제공되어 상기 기판을 지지하는 기판 지지부;상기 챔버의 일측에 형성된 도입부에 연결되며,상기 도입부를 통해 상기 챔버의 내부에 소스 가스 및 분위기 가스를 각각 공급하는 제1 및 제2 공급라인; 및상기 제1 및 제2 공급라인에 각각 연결되며, 상기 소스 가스 및 상기 분위기 가스가 저장된 제1 및 제2 저장탱크를 포함하되,상기 분위기 가스는 수소와 헬륨 중 어느 하나인, 어모퍼스 실리콘막의 증착 장치.
- 제6항에 있어서,상기 소스 가스는 실란(SiH2), 디실란(Si2H6), 디클로로실란(DCS) 중 하나 이상인, 어모퍼스 실리콘막의 증착 장치.
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US14/915,705 US9721798B2 (en) | 2013-10-21 | 2014-09-15 | Method and apparatus for depositing amorphous silicon film |
CN201480052521.XA CN105612603B (zh) | 2013-10-21 | 2014-09-15 | 非晶硅膜的蒸镀方法及蒸镀装置 |
US15/598,799 US20170256410A1 (en) | 2013-10-21 | 2017-05-18 | Method and apparatus for depositing amorphous silicon film |
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CN105612603B (zh) | 2019-05-03 |
US20170256410A1 (en) | 2017-09-07 |
US20160211141A1 (en) | 2016-07-21 |
US9721798B2 (en) | 2017-08-01 |
CN105612603A (zh) | 2016-05-25 |
TWI601842B (zh) | 2017-10-11 |
TW201516175A (zh) | 2015-05-01 |
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