WO2011078488A2 - 접지 구조물, 이를 구비하는 히터 및 화학기상증착 장치 - Google Patents
접지 구조물, 이를 구비하는 히터 및 화학기상증착 장치 Download PDFInfo
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- WO2011078488A2 WO2011078488A2 PCT/KR2010/008348 KR2010008348W WO2011078488A2 WO 2011078488 A2 WO2011078488 A2 WO 2011078488A2 KR 2010008348 W KR2010008348 W KR 2010008348W WO 2011078488 A2 WO2011078488 A2 WO 2011078488A2
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- WIPO (PCT)
- Prior art keywords
- ground
- clamp
- connector
- grounding
- mount
- Prior art date
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- 238000005229 chemical vapour deposition Methods 0.000 title claims abstract description 39
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 238000012546 transfer Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 51
- 230000008569 process Effects 0.000 claims description 42
- 239000000758 substrate Substances 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 21
- 239000012495 reaction gas Substances 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 17
- 239000010409 thin film Substances 0.000 claims description 14
- 238000000151 deposition Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000008021 deposition Effects 0.000 claims description 9
- 239000007769 metal material Substances 0.000 claims description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 7
- 239000010931 gold Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 230000004308 accommodation Effects 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005137 deposition process Methods 0.000 description 6
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910000990 Ni alloy Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- 239000000615 nonconductor Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000000427 thin-film deposition Methods 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
- H01R4/643—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for rigid cylindrical bodies
-
- 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
-
- 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
- C23C16/45565—Shower 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
- C23C16/458—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 supporting substrates in the reaction chamber
- C23C16/4582—Rigid and flat substrates, e.g. plates or discs
- C23C16/4583—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally
- C23C16/4586—Elements in the interior of the support, e.g. electrodes, heating or cooling devices
-
- 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
- C23C16/46—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 heating the substrate
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
Definitions
- the present invention relates to a grounding structure, a heater and a chemical vapor deposition apparatus having the same, and more particularly, to a grounding structure of a heater used to heat a substrate, and a heater and plasma chemical vapor deposition apparatus having such a grounding structure.
- Chemical vapor deposition is one of the main processes for manufacturing semiconductor devices and flat panel displays.
- the chemical vapor deposition (CVD) process is used for various types of substrates such as wafers or glass panels by chemical reaction of gases. It is a process of forming a thin film.
- PECVD plasma enhanced chemical vapor deposition
- Conventional PECVD apparatus provides an internal space disconnected from the outside and a process chamber in which a process for depositing a predetermined thin film on the substrate is performed therein, a shower head injecting a reaction gas from the top of the process chamber, the reaction Plasma electrode for supplying power for converting the gas into the plasma state, a heater disposed at the lower end of the process chamber to correspond to the shower head to heat the substrate located on the upper surface, power for applying power to the heater A grounding structure to ensure uniformity of the lines and the plasma.
- a heating unit and a ground electrode are disposed in the body of the heater, the power line is electrically connected to the heating unit, and the ground structure is electrically connected to the ground electrode.
- the ground structure may be disposed under the heater to guide a portion of the power applied from the plasma electrode into the process chamber to maintain the plasma formed in the process chamber in a uniform state.
- the grounding structure includes a grounding connector extending from a grounding electrode disposed above the heater, a gripping holder which is an elastic body that grips the grounding connector, and a grounding mount on which the holder is mounted.
- the wire electrically connected to the ground connector is connected to the side wall of the heater or the process chamber through the ground mount to form a ground circuit.
- the gripping holder has an elastic body in contact with the ground connector and a bolt inserted into the through hole penetrating through the body to grip the ground connector in a screwing manner.
- the screw fastening method has a problem in that the initial clamping force cannot be maintained due to thermal expansion of the ground connector because the gripping connector is held by the initial clamping force based on the tension of the bolt.
- the ground connector Since the ground connector is disposed under the heater in the process chamber in which the plasma process is performed, it is required to have appropriate thermal conductivity and electrical conductivity to configure an efficient ground circuit in a high temperature environment during the process.
- materials having proper thermal conductivity and electrical conductivity have thermal expansion properties due to their inherent physical properties, so that the ground connector is expanded by high temperature during the process and is initially initialized by its elastic property after the process is completed. Contraction in state
- the high voltage applied to maintain the plasma state inside the process chamber causes instantaneous discharge in the fine grooves, damaging the ground connector, and damaging the ceramic layer constituting the heater. do. That is, there is a problem in that the life of the ground structure and the heater having the same is shortened by the instant arcing occurring between the ground connector and the holder for gripping.
- An object of the present invention is to provide a grounding structure that can prevent the gripping failure of the gripper and the grounding connector due to thermal expansion of the grounding connector by gripping the grounding connector using the elasticity of the gripper without screwing.
- Another object of the present invention is to provide a chemical vapor deposition heater having the above-described grounding structure.
- Still another object of the present invention is to provide a plasma chemical vapor deposition apparatus having a heater as described above.
- Grounding structure for chemical vapor deposition is a ground mount having a receiving portion for receiving a ground connector for guiding a ground current to the grounding receptor, the receiving portion is disposed on one side
- a ground clamp having an open portion having an open portion communicating with the inside and the outside, the ground clamp holding the ground connector so that the surface and the inner surface of the ground connector are in contact with each other, and protruding to be bent from an outer surface adjacent to the opening;
- a pair of locking jaws arranged to be spaced apart from each other by the width of the opening to extend in parallel with the outer surface, the fastener reinforcing member fastened to the locking jaws to reinforce the adhesive force of the ground clamp and the ground connector and the outer clamp
- the ground current is connected to the ground by electrically connecting a side and the ground mount. It includes a ground wire to pass to mount.
- the ground connector and the ground clamp may be in surface contact with each other by fitting so that the ground connector may be gripped by a friction force acting on a whole surface in contact with the ground clamp.
- the ground connector may include a conductive metal material and the ground clamp may include an elastic body.
- the ground clamp and the engaging jaw is disposed integrally and the engaging jaw is curved to have a curvature greater than the curvature of the clamp and parallel to the outer surface of the clamp from the curved portion It may include an extension extending along the clamp.
- the fastener reinforcing member may include a metallic clip having an elastic force.
- the ground clamp has a thermal expansion rate of 50% to 150% of the ground connector thermal expansion rate.
- the ground clamp further includes a conductive thin film coated on the inner surface of the ground connector may be in surface contact with the conductive thin film.
- the conductive thin film may include any one selected from gold (Au), silver (Ag), platinum (Pt), and a compound thereof.
- the ground clamp may further include a connection terminal disposed on an outer surface and connected to the ground wiring.
- the connection terminal may include a connection hole penetrating a side portion of the ground clamp, a connection part inserted into the connection hole, and a fixing part fixing the connection part to the clamp.
- the connection part may include a nut at the end, and the fixing part may include a bolt corresponding to the nut.
- the ground connector may include nickel (Ni) and the ground clamp may include any one selected from nickel (Ni), beryllium (Be), copper (Cu), and alloys thereof.
- the ground wire may include a flexible cable to absorb longitudinal thermal expansion of the ground connector held by the ground clamp.
- the ground mount may further include a ground hole disposed at the bottom of the accommodation portion, and the ground connector extended by thermal expansion may be accommodated in the ground hole.
- Chemical vapor deposition heater for achieving the above object is a ground electrode disposed in the interior of the body having a top surface flatly processed so that the substrate to be deposited is located inside the body
- a heating unit arranged to generate heat and having a receiving part connected to the ground electrode to receive a ground connector for guiding a ground current generated from the ground electrode to a ground container, the grounding part being disposed on the receiving part and having one side opened
- a ground clamp having a cylindrical shape having an open portion communicating with the outside and a ground clamp for holding the ground connector so that the surface and the inner surface of the ground connector are in contact with each other, and protruding to be bent from an outer surface adjacent to the open portion and the outer surface
- the body may comprise ceramic or quartz.
- the ground structure may further include a through hole spaced apart from the accommodation portion and penetrating the ground mount, and a power line for supplying power to the heating unit may be disposed through the through hole.
- Plasma chemical vapor deposition apparatus for achieving the above object is a process chamber in which the chemical vapor deposition process is performed on the substrate to be deposited is injected from the top of the process chamber A shower head which induces a plasma reaction of a reaction gas injected through the shower head; and a heating unit for heating the substrate under the process chamber facing the shower head and charged particles in the plasma state as a ground current.
- a ground mount having a heater having a discharged ground electrode and a receiving portion connected to the ground electrode to receive a ground connector for guiding the ground current to the ground receptor, the ground mount being disposed on the receiving portion and having one side open to open and close the
- the ground connector having a cylindrical shape having an opening in communication therewith;
- a ground clamp for holding the ground connector so that the surface and the inner surface of the rotor contact each other, and protruded to be bent from the outer surface adjacent to the opening portion so as to extend in parallel with the outer surface so as to be spaced apart from each other by the width of the opening portion.
- It may include a grounding structure having a grounding wire for transmitting.
- the ground structure further includes a through hole spaced apart from the receiving portion and penetrating the ground mount, and a power line connected to a power source outside the process chamber and supplying power to the heating unit is the through hole. It may be disposed through the hole.
- the ground connector having a rod shape is gripped by the fitting inside the elastic ground clamp having a cylindrical shape by the axial direction and radius of the rod-type ground connector Even if thermal expansion occurs in the direction, it is expanded integrally with the ground clamp. In addition, even when the ground connector is contracted, it is contracted integrally with the ground clamp to sufficiently prevent the separation between the ground connector and the ground clamp by thermal expansion and contraction of the ground connector. Accordingly, it is possible to prevent instantaneous arcing in the ground structure and to prevent damage to the heater. Accordingly, the maintenance cost of the plasma deposition apparatus including the heater can be reduced.
- FIG. 1 is a perspective view showing a ground structure according to an embodiment of the present invention.
- FIG. 2 is a perspective view illustrating a combination of the ground connector and the grounding clamp shown in FIG. 1.
- FIG. 3 is an exploded perspective view of the ground connector and the grounding clamp shown in FIG.
- FIG. 4 is a block diagram showing a chemical vapor deposition heater having a ground structure shown in FIG. 1 according to an embodiment of the present invention.
- FIG. 5 is a block diagram showing a chemical vapor deposition apparatus having a heater shown in FIG. 4 according to an embodiment of the present invention.
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- FIG. 1 is a perspective view showing a ground structure according to an embodiment of the present invention.
- FIG. 2 is a perspective view illustrating a combination of the ground connector and the ground clamp shown in FIG. 1
- FIG. 3 is an exploded perspective view of the ground connector and the ground clamp shown in FIG. 2.
- the ground structure 100 is a ground mount 110, ground connector 120, ground clamp 130, the locking step 133, The clamp reinforcement member 134 and the ground wiring 140 are included.
- the ground mount 110 is a conductive body through which the ground connector 120 penetrates and may have various shapes according to the type of deposition apparatus and the coupling characteristic of the deposition apparatus.
- the ground mount 110 may be provided in a cylindrical shape and may be separately disposed at the bottom of the deposition apparatus or inserted into the heater block.
- the ground mount 110 may be supported by the support 110a disposed below.
- the ground mount 110 includes a receiving part 112 in which a ground hole 112a into which the ground connector 120 is inserted is arranged to accommodate the ground connector 120.
- the receiving part 112 has a ground clamp 130 for maintaining surface contact with the ground connector 120 and a ground current electrically connected to the ground clamp 130 and flowing to the ground connector 120.
- the ground wire 140 for transmitting the to the ground mount 110 is disposed.
- the ground mount 110 is formed of a metal material having excellent electrical conductivity such as aluminum, gold, and silver.
- the accommodating part 112 is configured in a fan shape in which a part of the body of the ground mount 110 is removed, and has a space sufficient to perform the coupling of the ground clamp 130 and the ground connector 120.
- the receiving portion 112 has a fan shape having a center angle of 90 degrees.
- a ground hole (not shown) is disposed at the bottom of the accommodating part 112 to allow the ground connector 120 to penetrate.
- One end of the ground connector 120 passing through the ground hole is connected to the ground electrode included in the heater to be described later.
- the accommodating part 112 may have a sufficient size to accommodate the length of the ground connector 120 to sufficiently absorb the longitudinal thermal expansion of the ground connector 120 during the deposition process. Accordingly, it is possible to prevent the crack due to thermal expansion of the ground connector 120 generated between the ground electrode and the ground connector 120 by removing the longitudinal freedom constraint factor of the ground connector 120.
- the accommodating part 112 is sealed by the blocking cover 150 so that the accommodating part 112 is blocked from the outside. Therefore, the combination of the ground connector 120 and the ground clamp 130 is disposed in the inner space of the receiving portion 112 is cut off from the outside.
- the ground mount 110 may further include a through hole 114 spaced apart from the receiving portion 112 and penetrating the body.
- a power line (not shown) for supplying power to the heating element (not shown) of the chemical vapor deposition apparatus is disposed through the through hole 114.
- the power line is disposed to penetrate the through hole 114 and the ground mount 110 and the power line are configured to be electrically insulated from each other by an insulating material (not shown).
- the ground connector 120 has a conductive metal rod shape and extends from an upper portion of the ground mount 110 to be inserted into the ground hole 112a of the receiving portion 112.
- the metal rod may be made of a metal material having excellent electrical conductivity such as nickel and copper, and may be connected by a ground electrode disposed on the heater block of the chemical vapor deposition apparatus. That is, the ground connector 120 functions as a path of ground current in the chemical vapor deposition apparatus.
- the ground clamp 130 has a cylindrical shape and includes an opening 132 in which one side portion is opened along the length direction of the cylinder so that the inside and the outside of the cylinder communicate with each other.
- the ground connector 120 having a rod shape is inserted into the clamp 130 having a cylindrical shape so that the outer circumferential surface of the ground connector 120 and the inner surface of the clamp 130 maintain surface contact with each other.
- the diameter of the clamp 130 is determined in the tolerance range to maintain the fit with the diameter (D) of the ground connector 120. That is, the clamp 130 and the ground connector 120 are coupled so as to be in surface contact with each other by fitting, so that the ground connector 120 is gripped by the clamp 130 in the accommodating part 110.
- the clamp 130 formed to have a cylinder shape is heat-treated (eg, annealed) at a temperature of about 300 ° C. to about 500 ° C. to remove residual stress remaining in the clamp 130. And sufficient initial elasticity.
- the diameter of the ground clamp 130 having a cylindrical shape ranges from about 50% to about 100% of the diameter of the rod-shaped ground connector 120.
- the ground clamp 130 may maintain surface contact between the inner surface of the ground clamp 130 and the outer circumferential surface of the ground connector 120 according to the difference in thermal expansion coefficient with the ground connector 120.
- the thermal expansion rate of the clamp 130 is formed to have about 50% to 150% of the thermal expansion rate of the ground connector 120.
- the thermal expansion rate of the ground clamp 130 is smaller than the thermal expansion rate of the ground connector, interference fit between the ground clamp 130 and the ground connector 120 is strengthened.
- the thermal expansion rate of the ground clamp 130 is greater than the thermal expansion rate of the ground connector, the surface contact between the ground clamp 130 and the ground connector 120 may be maintained by the fastening reinforcing member 134. have.
- the clamp 130 is made of the same material as or similar to the ground connector 120.
- the clamp 130 is made of nickel or a nickel alloy.
- the nickel alloy includes an alloy of nickel (Ni), beryllium (Be), and copper (Cu).
- the opening part 132 is disposed along the longitudinal direction of the clamp 130 having a cylindrical shape, and the ground connector 120 having a length longer than the clamp 130 is clamped through the opening part 132. 130 is inserted into the interior. That is, the clamp 130 is disposed so that the opening 132 and the ground connector 120 are adjacent to each other, and an external force is applied to the clamp 130 so that the ground connector 120 passes through the opening 132.
- the ground connector 120 is inserted into the clamp 130.
- the opening 132 may be disposed by removing the circumference of the columnar clamp 130 corresponding to about 40% to about 100% of the diameter of the ground connector 120.
- the opening 132 is deformed within the range of the elastic limit of the clamp 130 so that the width (w) of the opening 132 is expanded to have a width corresponding to the diameter of the ground connector 120. .
- the width w of the opening portion is reduced to the initial width by the restoring force of the clamp 130. Therefore, the ground connector 120 inserted into the clamp 130 is gripped on the inner surface of the clamp 130 by the friction force by the fitting and the restoring force of the clamp. That is, the ground connector 120 and the clamp 130 are held in close contact with each other by a friction force and a restoring force acting between the inner surface of the clamp 130 and the outer surface of the ground connector 120.
- the locking step 133 is protruded to be bent from the outer peripheral surface of the opening portion 132 extends in parallel with the outer surface and is spaced apart from each other by the width of the opening portion 132 are It is arranged in pairs facing each other.
- the latching jaw 133 is curved from the curved portion and the curved portion to have a curvature greater than the curvature of the clamp 130 from the outer surface of the clamp 130 at the periphery of the opening 132. It may include an extension extending along the clamp in parallel with the outer surface of the clamp (1300).
- a pair of gap spaces S are formed between the outer surface of the clamp 130 and the curved portion and the extended portion of the locking jaw 133 based on the opening 132.
- the extension portion of the locking step 133 may have a straight shape parallel to the tangent of the curved portion and may have a curved shape parallel to the circumferential surface of the clamp 130.
- the locking jaw 133 and the clamp 130 are described as being integrally formed and disposed, but it is apparent that it can be arranged as a separate locking jaw structure having a detachable function.
- the fastening reinforcing member 134 is inserted into the space space (S) after the ground connector 120 is inserted into the clamp 130, respectively, the ground connector 120 and the clamp 130 Strengthen the adhesion between the). That is, the fastener reinforcing member 134 applies external force in a direction of reducing the width of the opening 132 by pulling the catching jaws 133 disposed symmetrically around the periphery of the opening 132.
- the fastener reinforcing member 134 is formed of a metal material having excellent elasticity to apply an external force to the locking step 133 by its elastic force.
- the adhesion between the clamp 130 and the ground connector 120 may be reinforced by reinforcing the friction force applied between the inner surface of the clamp 130 and the outer circumferential surface of the ground connector 120.
- the fastener reinforcing member 134 may include an elastic clip processed from a metal material having an open end and a high elastic modulus, such as a U-shaped lock clip.
- the fixing end of the elastic clip itself can be strengthened by crossing the open end of the elastic clip in an X-shape to transform it into a hermetic clip. Thereby, the relaxation of the elastic clip can be prevented even by using for a long time.
- the inner surface of the ground clamp 130 may further include a conductive thin film 135 for reinforcing electrical conductivity between the clamp and the ground connector 120.
- the conductive thin film 135 may be coated on the entire inner surface of the clamp to minimize the electrical resistance of the ground circuit composed of the ground connector 120 and the ground clamp 130.
- the conductive thin film 135 includes a metal material having a low electrical resistance such as gold (Au), silver (Ag), or platinum (Pt).
- the fastening reinforcing member 134 and the conductive thin film 135 may improve adhesion between the ground connector 120 and the ground clamp 130 and lower electrical resistance.
- the clamp 130 may also have substantially the same or smaller thermal expansion along the radial direction, thereby causing the inner surface of the clamp 130 and the ground connector to be thermally expanded. It is possible to block the occurrence of the separation space between the outer peripheral surface of the source at source.
- the gripping of the ground connector 120 and the ground clamp 130 with the interference fit method in the conventional screw coupling method of the ground connector 120 and the clamp 130 even if the high temperature chemical vapor deposition process is repeated Deterioration in adhesiveness can be prevented.
- connection terminal 136 to which the ground wire 140 is connected may be further disposed on a portion of the outer surface of the clamp 130.
- the connection terminal 136 is used in various structures and means that can ensure the electrical connection between the clamp 130 and the ground wiring 140 at high temperatures in consideration of the characteristics of the deposition process performed at a high temperature.
- the connection terminal 136 is formed integrally with the clamp 130 and includes a protruding member protruding from the outer surface.
- the ground wiring 140 may be disposed to penetrate the protruding member to prevent the ground wiring 140 from being short-circuited even when a change occurs due to a high temperature or a radial and longitudinal thermal expansion of the clamp 9130.
- a screw structure is used to mechanically force contact between the protruding member and the ground wiring 140.
- connection terminal 136 includes a connection hole 136a penetrating a part of the side surface of the clamp 130, a connection part 136b inserted into the connection hole, and the connection part 136b to the clamp 130. And a fixing part 136c for fixing.
- a nut is formed at an end of the connection portion 136b and the fixing portion 136c may be formed as a bowl corresponding to the nut.
- the connection terminal 136 is disclosed as an assembly of a bolt and a nut, but is not limited thereto, and various connection terminals may be used as long as the ground clamp 130 and the ground wiring 140 may be electrically connected to each other. It can be obvious.
- ground wiring 140 is connected to the connection terminal 136 and the other end is connected to the body of the connection mount 110. Therefore, the ground current transmitted to the ground connector 120 is finally grounded through the ground mount 110.
- the ground wiring 140 is formed of a flexible cable having excellent flexibility and is configured to be movable along the vertical direction in the receiving portion 112. Therefore, it is possible to sufficiently absorb thermal expansion in the vertical direction with respect to the combination of the ground clamp 130 and the ground connector 120.
- a gripping method between a grounding connector extending from the grounding electrode and a grounding clamp surrounding the grounding connector is reinforced by a fastening from a conventional screwing method.
- FIG. 4 is a block diagram showing a chemical vapor deposition heater having a ground structure shown in FIG. 1 according to an embodiment of the present invention.
- a heater provided in a plasma enhanced chemical vapor deposition (PECVD) apparatus is exemplarily disclosed.
- PECVD plasma enhanced chemical vapor deposition
- the heater 200 for chemical vapor deposition includes a heater body 210 having an upper surface 211 that is flatly processed so that a substrate to be deposited (not shown) is positioned.
- a grounding electrode 220 disposed inside the heater body 210 to absorb a portion of plasma power to generate a ground current, and a heating unit 230 disposed inside the heater body 210 to generate heat.
- the ground structure 100 described with reference to FIGS. 1, 2, and 3 is disposed on a lower surface of the heater 200 symmetrically positioned with the upper surface 211.
- the body 210 is composed of an electrical insulator to electrically insulate the ground electrode 220 disposed inside the body 210 and the ground mount 110 disposed below the body 210.
- the body 210 may be formed of a ceramic or quartz material having excellent corrosion resistance and electrical insulation with respect to a deposition process performed in the process chamber.
- the body 210 may be made of a metal material having excellent thermal conductivity (for example, sus) and may be configured to surround the outer surface with the ceramic or the quartz.
- the ground electrode 220 is disposed inside the body 210 to charge a portion of the plasma particles formed during the deposition process to form a ground current. Accordingly, a plasma of a constant intensity is always maintained inside the process chamber of the deposition apparatus.
- the heating unit 230 generates heat by a power source applied from the outside to heat the substrate located on the upper surface 211.
- the heating unit includes a heater that generates joule heat generated according to the intensity of the applied current.
- the ground electrode 220 is electrically connected to the ground connector 120 of the ground structure 100 and the heating unit 230 passes through the through hole 114 of the ground structure 100. Is electrically connected to the power line 190. Accordingly, the heating unit 230 generates joule heat by current applied from an electric power source P disposed outside.
- the ground connector 120 and the power line 190 may be surrounded by an insulating material and electrically insulated from the ground mount 110 made of a metal material.
- the ground connector 120 and the power line 190 are accommodated in the ground structure 100 as described with reference to FIGS. 1, 2, and 3 to supply power for heat transfer to the heating unit 230.
- the ground current resulting from the plasma reaction inside the chamber is guided to the ground mount 110.
- the ground mount 110 may be connected to a support (not shown) for supporting the heater 200 to function as a final ground current receiver of the ground current.
- Detailed description of the ground structure 100 is the same as described with reference to Figures 1, 2 and 3, and further detailed description thereof will be omitted.
- the ground connector and the power line connected to the ground electrode and the heating unit are connected to the external power source and the ground receptor through a ground structure disposed below.
- the ground wire 140 electrically connecting the combination of the ground electrode and the ground clamp to the metallic ground mount is connected to the flexible cable so that the ground wire 140 may be thermally expanded in the longitudinal direction due to the high temperature of the heater. Is absorbed by. Therefore, the disconnection between the ground connector 120 and the ground electrode 220 is sufficiently suppressed by the longitudinal thermal expansion of the ground connector 120.
- FIG. 5 is a block diagram showing a chemical vapor deposition apparatus having a heater shown in FIG. 4 according to an embodiment of the present invention.
- an apparatus for performing a chemical vapor deposition process by a plasma deposition process is exemplarily disclosed.
- a concept of the present invention is applied to a deposition apparatus that requires an electric circuit for grounding the current generated inside the process chamber to the outside. It is obvious that it can be applied.
- the chemical vapor deposition apparatus 300 is sealed from the outside and the process chamber 310, the process chamber 310 is a chemical vapor deposition process is performed on the substrate to be deposited
- shower head 320 for injecting the reaction gas at the top of the plasma electrode
- the plasma electrode 330 for inducing a plasma reaction of the reaction gas injected through the shower head 320
- the process chamber 310 facing the shower head
- a heater 200 having a ground electrode for heating the substrate and discharging the charged particles forming the plasma with a ground current at a lower portion of the substrate, and applying power to the heater 200 from the outside of the process chamber 310.
- a ground structure 100 having a power line 190 and a ground connector 120 for guiding the ground current generated from the ground electrode to the ground receptor.
- reaction gas discharge line is connected to the reaction gas supply line for supplying the reaction gas injected through the shower head 320 and the lower portion of the process chamber 310 to discharge the reaction gas from the process chamber 310. It may further include a line. A vacuum pump may be further attached to the reaction gas discharge line.
- the process chamber 310 is sealed to be disconnected from the external environment and is formed to have a predetermined degree of vacuum, thereby minimizing defects in the plasma process and connected to a load lock chamber or a substrate transfer means for transferring the substrate.
- the shower head 320 injects the reaction gas supplied from the reaction gas supply line to the front surface of the substrate at a predetermined pressure.
- the showerhead 320 is configured to have a size similar to or larger than that of the substrate to inject the reaction gas to the front of the substrate.
- High frequency power is applied to the plasma electrode 330 to induce a plasma reaction with respect to the reaction gas.
- the reaction gas excited in a high temperature plasma state is focused onto the substrate.
- the heater 200 supports the substrate disposed on the upper surface and heats it through a power line connected to an external power source.
- the reaction gas reacts on the heated upper surface of the substrate to deposit a thin film of high density on the substrate.
- the temperature at which the substrate is heated may vary depending on the type of thin film to be deposited. For example, when depositing a TEOS film, it is heated to have a temperature of about 360 ° C to about 460 ° C.
- the ionic particles of the reaction gas charged on the surface of the heater by the plasma reaction is concentrated to the ground electrode and grounded to the external ground receptor through the ground connector.
- the ground connector and the power line are disposed in the ground structure 100 disposed below the heater 200. Since the heater 200 and the ground structure 100 have the same structure and function as described with reference to FIGS. 1 to 3, further detailed description thereof will be omitted.
- the outer circumferential surface of the ground connector connected to the ground electrode electrically charged by the plasma reaction and the entire inner surface of the ground clamp surrounding the ground connector are in surface contact with each other.
- the ground clamp may be prevented from being spaced apart from the ground connector to prevent damage to the ground connector due to arcing. Accordingly, it is possible to reduce the maintenance cost of the deposition apparatus.
- the inner circumferential surface of the ground connector and the inside of the clamp are changed.
- the spacing between the sides can be prevented from being generated. Accordingly, damage to the ground connector can be prevented by preventing arcing between the ground connector and the clamp. Accordingly, the maintenance cost can be reduced by preventing damage to the heater for the chemical vapor deposition apparatus including the ground clamp and the ground connector assembly and the chemical vapor deposition apparatus including the same.
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Abstract
Description
Claims (20)
- 접지 전류를 접지 수용체로 안내하는 접지 커넥터를 수용하는 수용부를 구비하는 접지 마운트;상기 수용부에 배치되며 일측이 개방되어 내부와 외부가 연통하는 개방부를 구비하는 실린더 형상을 갖고 상기 접지 커넥터의 표면과 내측면이 서로 접촉하도록 상기 접지 커넥터를 파지하는 접지 클램프;상기 개방부와 인접한 외측면으로부터 절곡되도록 돌출하여 상기 외측면과 평행하게 연장하며 상기 개방부의 폭만큼 서로 이격되어 배치되는 한 쌍의 걸림턱; 및상기 접지 클램프의 외측면과 상기 접지 마운트를 전기적으로 연결하여 상기 접지 전류를 상기 접지 마운트로 전달하는 접지배선을 포함하는 것을 특징으로 하는 접지 구조물.
- 제1항에 있어서, 상기 접지 커넥터와 상기 접지 클램프는 서로 억지끼워 맞춤에 의해 면접촉하여 상기 접지 커넥터는 상기 접지 클램프와 접촉하는 전면(whole surface)에서 작용하는 마찰력에 의해 파지되는 것을 특징으로 하는 접지 구조물.
- 제2항에 있어서, 상기 접지 커넥터는 도전성 금속물질을 포함하며 상기 접지 클램프는 탄성체를 포함하는 것을 특징으로 하는 접지 구조물.
- 제1항에 있어서, 상기 걸림턱은 상기 개방부의 주변부에서 상기 클램프의 외측면으로부터 상기 클램프의 곡률보다 큰 곡률을 갖도록 굽은 곡선부 및 상기 곡선부로부터 상기 클램프의 외측면과 평행하게 상기 클램프를 따라 연장하는 연장부를 포함하는 것을 특징으로 하는 접지 구조물.
- 제4항에 있어서, 상기 걸림턱에 체결되어 상기 접지 클램프와 상기 접지 커넥터가 접촉하는 표면에 작용하는 마찰력을 보강하는 죔새 보강부재를 더 포함하는 것을 특징으로 하는 접지 구조물.
- 제5항에 있어서, 상기 죔새 보강부재는 탄성력을 갖는 금속성 클립을 포함하는 것을 특징으로 하는 접지 구조물.
- 제1항에 있어서, 상기 접지 클램프의 열팽창률은 상기 접지 커넥터의 열팽창률의 50% 내지 150%의 범위를 갖는 것을 특징으로 하는 접지 구조물.
- 제1항에 있어서, 상기 접지 클램프는 내측면에 코팅된 도전성 박막을 더 포함하여 상기 접지 커넥터의 표면은 상기 도전성 박막과 면접촉하는 것을 특징으로 하는 접지 구조물.
- 제8항에 있어서, 상기 도전성 박막은 금(Au), 은(Ag), 백금(Pt) 및 이들의 화합물 중에서 선택된 어느 하나를 포함하는 것을 특징으로 하는 접지 구조물.
- 제1항에 있어서, 상기 접지 클램프는 외측면에 배치되어 상기 접지배선과 연결되는 접속단자를 더 포함하는 것을 특징으로 하는 접지 구조물.
- 제10항에 있어서, 상기 접속단자는 상기 접지 클램프의 측면일부를 관통하는 접속 홀, 상기 접속 홀에 삽입되는 연결부 및 상기 연결부를 상기 클램프에 고정하는 고정부를 포함하는 것을 특징으로 하는 접지 구조물.
- 제11항에 있어서, 상기 연결부는 단부에 너트를 포함하고 상기 고정부는 상기 너트에 대응하는 보울트를 포함하는 것을 특징으로 하는 접지 구조물.
- 제1항에 있어서, 상기 접지 커넥터는 니켈(Ni)을 포함하고 상기 접지 클램프는 니켈(Ni), 베릴륨(Be), 구리(Cu) 및 이들의 합금 중에서 선택되는 어느 하나를 포함하는 것을 특징으로 하는 접지 구조물.
- 제1항에 있어서, 상기 접지배선은 신축성 케이블을 포함하여 상기 접지 클램프에 파지된 상기 접지 커넥터의 길이방향 열팽창을 흡수하는 것을 특징으로 하는 접지 구조물.
- 제14항에 있어서, 상기 접지 마운트는 상기 수용부의 바닥에 배치된 접지 홀을 더 포함하며 열팽창에 의해 연장된 상기 접지 커넥터는 상기 접지 홀에 수용되는 것을 특징으로 하는 접지 구조물.
- 증착대상 기판이 위치하도록 평탄하게 가공된 상면을 구비하는 몸체;상기 몸체의 내부에 배치된 접지전극;상기 몸체의 내부에 배치되어 열을 발생하는 히팅유닛; 및상기 접지전극과 연결되어 상기 접지전극에서 발생하는 접지전류를 접지 수용체로 안내하는 접지 커넥터를 수용하는 수용부를 구비하는 접지 마운트, 상기 수용부에 배치되며 일측이 개방되어 내부와 외부가 연통하는 개방부를 구비하는 실린더 형상을 갖고 상기 접지 커넥터의 표면과 내측면이 서로 접촉하도록 상기 접지 커넥터를 파지하는 접지 클램프, 상기 개방부와 인접한 외측면으로부터 절곡되도록 돌출하여 상기 외측면과 평행하게 연장하며 상기 개방부의 폭만큼 서로 이격되어 배치되는 한 쌍의 걸림턱 및 상기 접지 클램프의 외측면과 상기 접지 마운트를 전기적으로 연결하여 상기 접지 전류를 상기 접지 마운트로 전달하는 접지배선을 구비하는 접지 구조물을 포함하는 것을 특징으로 하는 화학기상증착 장치용 히터.
- 제16항에 있어서, 상기 몸체는 세라믹(ceramic) 또는 퀄츠(quartz)를 포함하는 것을 특징으로 하는 화학기상증착 장치용 히터.
- 제16항에 있어서, 상기 접지 구조물은 상기 수용부와 이격되어 위치하고 상기 접지 마운트를 관통하는 관통 홀을 더 포함하며 상기 히팅 유닛으로 전원을 공급하기 위한 파워라인은 상기 관통 홀을 관통하여 배치되는 것을 특징으로 하는 화학기상증착 장치용 히터.
- 외부로부터 밀폐되며 증착대상 기판에 대하여 화학기상 증착공정이 수행되는 공정챔버;상기 공정챔버의 상단에서 반응가스를 분사하는 샤워헤드;상기 샤워헤드를 통해 분사되는 반응가스의 플라즈마 반응을 유도하는 플라즈마 전극;상기 샤워헤드에 대향하는 상기 공정챔버의 하부에 상기 기판을 가열하는 히팅유닛 및 상기 플라즈마 상태의 하전입자를 접지전류로 배출하는 접지전극을 구비하는 히터; 및상기 접지전극과 연결되어 상기 접지전류를 접지 수용체로 안내하는 접지 커넥터를 수용하는 수용부를 구비하는 접지 마운트, 상기 수용부에 배치되며 일측이 개방되어 내부와 외부가 연통하는 개방부를 구비하는 실린더 형상을 갖고 상기 접지 커넥터의 표면과 내측면이 서로 접촉하도록 상기 접지 커넥터를 파지하는 접지 클램프, 상기 개방부와 인접한 외측면으로부터 절곡되도록 돌출하여 상기 외측면과 평행하게 연장하며 상기 개방부의 폭만큼 서로 이격되어 배치되는 한 쌍의 걸림턱 및 상기 접지 클램프의 외측면과 상기 접지 마운트를 전기적으로 연결하여 상기 접지 전류를 상기 접지 마운트로 전달하는 접지배선을 구비하는 접지 구조물을 포함하는 것을 특징으로 하는 플라즈마 화학기상증착 장치.
- 제19항에 있어서, 상기 접지 구조물은 상기 수용부와 이격되어 위치하고 상기 접지 마운트를 관통하는 관통 홀을 더 포함하며 상기 공정챔버 외부의 전원에 연결되어 상기 히팅 유닛으로 전원을 공급하는 파워라인은 상기 관통 홀을 관통하여 배치되는 것을 특징으로 하는 플라즈마 화학기상증착 장치.
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SG2012046165A SG181869A1 (en) | 2009-12-21 | 2010-11-24 | Grounding structure, and heater and chemical vapor deposition apparatus having the same |
CN2010800643627A CN102792421A (zh) | 2009-12-21 | 2010-11-24 | 接地结构及具有该接地结构的加热器和化学气相沉积设备 |
US13/517,149 US20120267356A1 (en) | 2009-12-21 | 2010-11-24 | Grounding structure, and heater and chemical vapor deposition apparatus having the same |
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KR1020090127637A KR101415552B1 (ko) | 2009-12-21 | 2009-12-21 | 접지구조물, 이를 구비하는 히터 및 화학기상 증착장치 |
KR10-2009-0127637 | 2009-12-21 |
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KR (1) | KR101415552B1 (ko) |
CN (1) | CN102792421A (ko) |
SG (1) | SG181869A1 (ko) |
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Cited By (1)
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WO2013135537A1 (en) * | 2012-03-15 | 2013-09-19 | Solibro Gmbh | Vacuum deposition source heating system and vacuum deposition system |
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KR101649471B1 (ko) * | 2014-06-10 | 2016-08-22 | 엘지디스플레이 주식회사 | 디스플레이장치 제조용 가열장치 |
CN104538751B (zh) * | 2014-12-31 | 2017-05-17 | 四川中光防雷科技股份有限公司 | 柔性接地装置与方法及其系统 |
WO2018062710A1 (ko) * | 2016-09-28 | 2018-04-05 | 주식회사 미코 | 접지 클램핑 유닛 및 이를 포함하는 기판 지지 어셈블리 |
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- 2010-11-24 US US13/517,149 patent/US20120267356A1/en not_active Abandoned
- 2010-11-24 WO PCT/KR2010/008348 patent/WO2011078488A2/ko active Application Filing
- 2010-11-24 SG SG2012046165A patent/SG181869A1/en unknown
- 2010-11-26 TW TW099141115A patent/TWI405868B/zh not_active IP Right Cessation
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TW201127985A (en) | 2011-08-16 |
WO2011078488A3 (ko) | 2011-09-22 |
TWI405868B (zh) | 2013-08-21 |
SG181869A1 (en) | 2012-07-30 |
CN102792421A (zh) | 2012-11-21 |
US20120267356A1 (en) | 2012-10-25 |
KR20110071162A (ko) | 2011-06-29 |
KR101415552B1 (ko) | 2014-07-07 |
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