WO2016167224A1 - 吸着装置、真空処理装置 - Google Patents
吸着装置、真空処理装置 Download PDFInfo
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- WO2016167224A1 WO2016167224A1 PCT/JP2016/061719 JP2016061719W WO2016167224A1 WO 2016167224 A1 WO2016167224 A1 WO 2016167224A1 JP 2016061719 W JP2016061719 W JP 2016061719W WO 2016167224 A1 WO2016167224 A1 WO 2016167224A1
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- terminal
- power
- power receiving
- adsorption
- power supply
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
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- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N13/00—Clutches or holding devices using electrostatic attraction, e.g. using Johnson-Rahbek effect
Definitions
- the present invention relates to an adsorption apparatus and a vacuum processing apparatus, and more particularly, to an adsorption apparatus that can move while adsorbing a substrate in a vacuum atmosphere, and a vacuum processing apparatus that includes a power supply table on which the adsorption apparatus is placed.
- a method of indirectly controlling the temperature of the substrate is performed by placing the substrate on the adsorption device, adsorbing the substrate to the adsorption device, and controlling the temperature of the adsorption device. ing.
- an adsorption device that is equipped with a battery and can move in a state in which the substrate is adsorbed by the operation of the battery.
- the battery-less power receiving terminal connected to the suction electrode of the suction device and the power feeding terminal of the power feeding device connected to the power source are in contact in a stationary state, and the equivalent capacity between the suction electrode and the substrate is
- a suction device that can be charged and the power receiving terminal and the power feeding terminal are separated to move and a suction device that can suck the substrate during the movement by the residual charge accumulated in the equivalent capacity is known.
- the suction force during vacuum processing or the suction force during movement may be reduced, and countermeasures are required.
- the present invention was created to solve the above-described disadvantages of the prior art, and an object of the present invention is to provide a technique capable of adsorbing a substrate without reducing the adsorption force during vacuum processing or movement. .
- the inventors of the present invention stated that the receiving terminal of the adsorption device is in contact with the conductive gas atmosphere in the vacuum chamber in a state where a high voltage is applied due to the residual charge remaining in the equivalent capacity. It was released, and it was found that the adsorptive power decreased during movement. Therefore, if the exposure of the power receiving terminal to the conductive gas is prevented, the adsorption force is not lowered.
- the present invention was created based on the above knowledge, and includes a device main body, a power receiving side recess provided in the device main body, a power receiving terminal at least partially exposed in the power receiving side recess, and the device.
- An adsorption electrode provided on a main body and electrically connected to the power receiving terminal, wherein a gaseous substance having electrical conductivity contacts a substrate placed on a surface of the apparatus main body, and the adsorption An adsorption device in which the substrate is adsorbed to the adsorption electrode when a voltage is applied to the electrode, wherein the adsorption electrode is provided on a power supply base on which the adsorption device is placed and is connected to a power supply device When the terminal is inserted into the power receiving side recess and the power feeding terminal comes into contact with the exposed portion of the power receiving terminal, an adsorption voltage output from the power supply device is applied, and after the adsorption voltage is applied to the adsorption electrode, The power receiving terminal and the power feeding end
- the present invention is a suction device, wherein the suction device is configured such that when the device main body is in a horizontal posture, the lid portion is opened so that the power receiving terminal and the power feeding terminal can be contacted, and the power feeding terminal is When the suction device is removed from the power reception side recess and the suction device changes from a horizontal posture to a vertical posture, the power reception side recess is a suction device closed by the lid portion.
- the present invention is an adsorption device, wherein the lid portion is provided with an expansion / contraction member, and the lid portion is pressed against the power supply terminal when the power supply terminal is inserted into the power receiving side recess, and the expansion / contraction member is deformed. However, when at least a part of the lid portion is moved and the power receiving side recess is opened, the power feeding terminal and the power receiving terminal are in contact, and the power feeding terminal is removed from the power receiving side recess. In the suction device, the deformation of the expansion / contraction member is returned to the original, and the power receiving side concave portion is covered with the lid portion.
- the present invention is an adsorption device, wherein the lid portion is formed of a material that is deformed when pressed and returns to its original shape when the pressure is released, and when the power feeding terminal is inserted into the power receiving side recess.
- the lid is pressed by the power feeding terminal, the lid is deformed and the power receiving side recess is opened, and the power feeding terminal and the power receiving terminal are in contact, and the power feeding terminal is in the power receiving side concave
- the cover is pulled out, the deformation of the lid portion returns to the original, and the power receiving side concave portion is covered by the lid portion.
- the present invention provides a device main body, a power receiving terminal provided in the device main body, a rectifier circuit provided in the device main body, and provided in the device main body and connected to the power receiving terminal via the rectifier circuit.
- a gaseous substance having electrical conductivity is in contact with a substrate placed on the surface of the apparatus body, and when the adsorption voltage is applied to the adsorption electrode, the substrate is An adsorption device that is adsorbed by an adsorption electrode, wherein the power receiving terminal is separated from an atmosphere outside the device body, and when the adsorption device is placed on a power supply table, a power supply terminal provided on the power supply table And the power receiving terminal are close to each other in a non-contact state, the power receiving terminal receives the AC voltage applied to the power feeding terminal, and the suction voltage is applied to the suction electrode via the rectifier circuit.
- the device is separated from the power supply When is a suction device that the substrate by the residual charge of the suction electrode is attracted to the attraction electrode.
- the present invention is an adsorption device, wherein a power receiving side grounding terminal that can contact a power feeding side grounding terminal provided on the power supply base, and a conduction or blocking between the adsorption electrode and the power receiving side grounding terminal, A switching device that conducts or cuts off between the electrode and the power receiving terminal; and a control device that switches the connection of the switching device, and the AC voltage applied to the power supply terminal is turned on and off of the switching device.
- the present invention is an adsorption device, wherein a power receiving side grounding terminal that can contact a power feeding side grounding terminal provided on the power supply base, and a conduction or blocking between the adsorption electrode and the power receiving side grounding terminal, A switching device that conducts or cuts off between the electrode and the power receiving terminal, a control device that switches connection of the switching device, and a switching device that is connected to the control device and that is connected to the control device and that is provided on the power supply base. And a power receiving side control terminal to which a control signal for controlling conduction and interruption is supplied.
- the present invention is a suction device, wherein the power receiving terminal and the power feeding terminal are each configured by a flat plate electrode, and when the suction device is placed on the power feeding base, a capacitor is formed by the power receiving terminal and the power feeding terminal.
- the present invention is an adsorption device, wherein the power supply side control terminal and the power reception side control terminal are each configured by a parallel plate type electrode, and when the adsorption device is placed on the power supply stand, the power reception side control terminal And the power supply side control terminal are capacitors, and the control signal output from the power supply side control terminal is an adsorption device that is transmitted to the power reception side control terminal.
- the present invention is a suction device, wherein the power receiving terminal and the power feeding terminal are each configured by a coil, and when the suction device is placed on the power feeding base, the power receiving terminal and the power feeding terminal are magnetically coupled. It is an adsorption device in which a transformer is formed.
- the present invention is a suction device, wherein the power supply side control terminal and the power reception side control terminal are each configured by a coil, and when the suction device is placed on the power supply stand, the power reception side control terminal and the power supply side A suction device is formed in which a transformer magnetically coupled to the side control terminal is formed, and the control signal output from the power feeding side control terminal is transmitted to the power receiving side control terminal.
- the present invention is a suction device, wherein a plurality of the substrates are placed on the suction electrode.
- the present invention is a suction device, wherein a plurality of the substrates are placed on the suction electrode.
- the present invention is an adsorption device, wherein the gaseous substance having electrical conductivity is plasma.
- the present invention is an adsorption device, wherein the gaseous substance having electrical conductivity is plasma.
- the present invention includes a vacuum chamber in which a gaseous substance having electrical conductivity is formed, a power supply base disposed inside the vacuum tank, and a power supply terminal provided in the power supply base.
- the power supply base is configured such that the suction device is separably arranged, and when the suction device is placed on the power supply base, a power receiving terminal provided on the suction device contacts the power supply terminal.
- the adsorption voltage output from the power supply device connected to the power supply terminal is applied to the adsorption electrode provided in the adsorption device via the power supply terminal and the power receiving terminal, and is arranged in the adsorption device.
- the present invention is a vacuum processing apparatus having the suction device, wherein the suction device has a device main body and a power receiving side recess provided in the device main body, and the power receiving terminal is at least one in the power receiving side concave portion.
- the adsorption electrode is provided in the apparatus main body, is electrically connected to the power receiving terminal, and a gaseous substance having electrical conductivity contacts the substrate placed on the surface of the apparatus main body,
- the attracting voltage is applied to the attracting electrode
- the substrate is attracted to the attracting electrode
- the power feeding terminal is inserted into the power receiving side recess
- the power feeding terminal is exposed to the exposed portion of the power receiving terminal.
- the suction voltage output from the power supply device is applied to the suction electrode via the power receiving terminal. After the suction voltage is applied to the suction electrode, the power receiving terminal and the power feeding terminal are separated from each other.
- the vacuum processing apparatus is an adsorption apparatus in which the power receiving side recess is closed by a lid provided in the apparatus main body.
- the present invention is a vacuum processing apparatus, wherein the suction apparatus is configured such that when the apparatus main body is in a horizontal posture, the lid portion is opened to allow contact between the power receiving terminal and the power feeding terminal.
- the power receiving side recess is a vacuum processing device closed by the lid portion.
- This invention is a vacuum processing apparatus, Comprising: The said cover part is provided with an expansion-contraction member, and when the said electric power feeding terminal is inserted in the said power receiving side recessed part, the said cover part is pressed by the said electric power feeding terminal, and the said elastic member is While being deformed, at least a part of the lid portion is moved so that the power receiving side recess is opened and the power feeding terminal contacts the power receiving terminal, and the power feeding terminal is removed from the power receiving side recess.
- the present invention is a vacuum processing apparatus, wherein the lid portion is deformed when pressed, and returns to its original shape when the pressure is released, and the power supply terminal is inserted into the power receiving side recess.
- the lid is pressed by the power supply terminal, the cover is deformed and the power receiving side recess is opened, and the power supply terminal and the power receiving terminal are in contact with each other, and the power supply terminal is in the power receiving side.
- the cover is removed from the recess, the deformation of the lid is restored, and the power receiving side recess is covered with the lid by the lid.
- This invention is a vacuum processing apparatus, Comprising: The vacuum chamber in which the gaseous substance which has electrical conductivity is formed, The feed stand arrange
- the rectified voltage is applied to an adsorption electrode provided in the adsorption apparatus, and the substrate disposed in the adsorption apparatus is electrostatically adsorbed.
- the present invention is a vacuum processing apparatus having the adsorption device, wherein the adsorption device has an apparatus main body, and the rectifier circuit, the power receiving terminal, and the adsorption electrode are provided in the apparatus main body, A gaseous substance having electrical conductivity contacts a substrate placed on the surface, and the substrate is adsorbed to the adsorption electrode when the rectified voltage is applied to the adsorption electrode, and the power receiving The terminal is separated from the atmosphere outside the apparatus body, and after the rectified voltage is applied to the adsorption electrode, residual charge remains in the adsorption electrode, and the adsorption apparatus moves away from the power supply stand.
- the vacuum processing apparatus is configured such that the substrate is adsorbed to the adsorption electrode by the residual charge of the adsorption electrode.
- the present invention is a vacuum processing apparatus, wherein the power supply base is provided with a power supply side ground terminal, and the apparatus body has a power reception side ground terminal that can contact the power supply side ground terminal, the suction electrode, and the power reception A switching device that conducts or cuts off between the side ground terminal and conducts or cuts off between the adsorption electrode and the power receiving terminal, and a control device that controls the conduction and blocking of the switching device are provided, A control signal for controlling conduction and interruption of the switching device is superimposed on the AC voltage applied to the power supply terminal, and the control signal is extracted from the voltage received by the power reception terminal and input to the control device.
- the present invention is a vacuum processing apparatus, wherein the power supply base is provided with a power supply side ground terminal, and the apparatus body has a power reception side ground terminal that can contact the power supply side ground terminal, the suction electrode, and the power reception A switching device that conducts or cuts off between the side ground terminal and conducts or cuts off between the adsorption electrode and the power receiving terminal, a control device that controls the conduction and blocking of the switching device, and the control device And a power receiving side control terminal to which a control signal for controlling the conduction and the interruption is input to the control device from a power supply side control terminal provided in the power supply stand. Device.
- the present invention is a vacuum processing apparatus, wherein the power receiving terminal and the power feeding terminal are each configured by a flat plate electrode, and when the suction device is placed on the power feeding base, the power receiving terminal and the power feeding terminal A vacuum processing apparatus configured to form a capacitor.
- the present invention is a vacuum processing apparatus, wherein the power supply side control terminal and the power reception side control terminal are each configured by a parallel plate type electrode, and the power reception side control is performed when the suction device is placed on the power supply base.
- the present invention is a vacuum processing apparatus, wherein the power receiving terminal and the power feeding terminal are each configured by a coil, and when the suction device is placed on the power feeding base, the power receiving terminal and the power feeding terminal are magnetic.
- the present invention is a vacuum processing apparatus, wherein the power feeding side control terminal and the power receiving side control terminal are each configured by a coil, and when the suction device is placed on the power feeding base, the power receiving side control terminal and the power receiving side control terminal
- (a)-(c) The figure for demonstrating the vacuum processing apparatus of this invention (a), (b): The figure for demonstrating the adsorption
- Reference numeral 2 in FIGS. 1A to 1C is a vacuum apparatus of the present invention.
- the vacuum device 2 has one or a plurality of vacuum processing devices 15 1 and 15 2 .
- the vacuum processing apparatuses 15 1 and 15 2 have a vacuum chamber 16, and a power supply stand 18 and a processing unit 17 are disposed inside the vacuum chamber 16.
- the power supply stand 18 is provided with a power supply device 60, and the suction device 19 is provided with a power reception device 20.
- the power supply device 60 is connected to a power supply device 66, and the power reception device 20 is connected to one suction electrode 22 provided in the suction device 19, and the power supply device 66 operates to apply a voltage to the power supply device 60. Then, a voltage is supplied from the power feeding device 60 to the power receiving device 20.
- the adsorption voltage is supplied from the power reception device 20 to the adsorption electrode 22 by the voltage supplied to the power reception device 20.
- the vacuum chamber 16 is connected to the ground potential.
- the adsorption electrode 22 can be adsorbed at a positive potential or a negative potential.
- An adsorption electrode 22 is positioned immediately below the plurality of substrates 5 placed on the adsorption device 19, and the adsorption electrode 22 is a single conductive plate or film here, Each substrate 5 is placed at a location inside the outer periphery of the adsorption electrode 22.
- a single suction electrode 22 is used, but a plurality of small-diameter electrodes may constitute the suction electrode, and each small-diameter electrode may be supplied with the same suction voltage.
- An evacuation device 68 is connected to each of the vacuum chambers 16 of the vacuum processing devices 15 1 and 15 2. After the vacuum evacuation device 68 is operated and the inside of the vacuum chamber 16 is evacuated to form a vacuum atmosphere. When plasma is formed inside the vacuum chamber 16, the plasma becomes a gaseous charged substance having electrical conductivity, comes into contact with the substrate 5 placed on the adsorption device 19 and the wall surface of the vacuum chamber 16, and vacuums the substrate 5. It is electrically connected to the tank 16. Each vacuum chamber 16 is connected to the ground potential, and the substrate 5 is connected to the ground potential.
- An equivalent capacitance is formed between the substrate 5 and the adsorption electrode 22, and when the adsorption voltage is supplied to the adsorption electrode 22 in a state where the substrate 5 is connected to the ground potential by the plasma, the equivalent capacitance is charged. Then, the substrate 5 and the attracting electrode 22 are charged to voltages having opposite polarities, and electrostatic force is generated between them, and the substrate 5 is electrostatically attracted to the attracting electrode 22.
- the substrate 5 is vacuum processed.
- the processing unit 17 is a shower plate, an etching gas is introduced from the processing unit 17, etching gas plasma is formed inside the vacuum chamber 16, and the substrate 5 adsorbed by the adsorption device 19 is A thin film formed on the surface of the substrate 5 is etched.
- the substrate 5 and the adsorption device 19 are in close contact by adsorption, and the thermal conductivity is high. Therefore, the substrate 5 can be heated or cooled by providing a heating device or a cooling device on the power supply stand 18 and heating or cooling the adsorption device 19 with the heating device or the cooling device.
- the suction voltage is supplied to the suction electrode 22.
- the voltage supply from the power supply device 60 to the power receiving device 20 is finished and the voltage supply to the suction electrode 22 is completed. Ends.
- reference numeral 11 denotes a vacuum valve that connects between the vacuum processing devices 15 1 and 15 2 or between the processing devices 14 1 and 14 2 and the like, and allows the adsorption device 19 to pass through when it is opened. is there.
- the power receiving device 20 of the moving adsorption device 19 is not supplied with a voltage from the power supply device 60, but even if the supply of voltage to the adsorption electrode 22 is finished, residual charges having opposite polarities on the adsorption electrode 22 and the substrate 5.
- the substrate 5 is maintained in the state of being adsorbed by the adsorbing device 19 by the adsorbing force of the residual charges.
- suction device 19 and the power supply stand 18 will be described.
- Reference numerals 19a to 19e in FIG. 2 and FIGS. 4 to 7 show specific first to fifth adsorption devices, and reference numerals 18a to 18e denote first to fifth adsorption devices 19a.
- Specific power supply bases of first to fifth examples corresponding to .about.19e are shown.
- the adsorption electrode 22 is disposed inside the apparatus main body 21 in which an insulator is formed in a plate shape, and the surface of the adsorption electrode 22 is the apparatus main body 21. Is not exposed to the outside. On the surface of the apparatus main body 21, a plurality of substrates 5 1 to 5 3 are placed. The adsorption electrode 22 is positioned immediately below the substrates 5 1 to 5 3 .
- the power receiving devices 20a to 20c of the suction devices 19a to 19c of the first to third examples include a power receiving side recess 23 provided on the back side of the device main body 21 and a power receiving side recess 23 on the bottom surface.
- Each of the power receiving terminals 24 has a lid portion 25a, 25b, 25c, and 25d that covers the power receiving side concave portion 23. At least a part of the power receiving terminal 24 is exposed in the power receiving side concave portion 23.
- the power receiving terminal 24 is composed of a member having electrical conductivity such as metal, and the film surface is exposed to the power receiving side concave portion 23. Has been.
- the power supply bases 18a to 18c of the first to third examples have a base body 61 in which an insulator is formed in a table shape, and the power supply devices of the power supply bases 18a to 18c of the first to third examples.
- 60 a to 60 c have a power supply terminal 64.
- the power supply devices 60a to 60c of the first to third examples have a power supply side recess 63 formed on the surface of the base body 61, and the power supply terminal 64 is formed on the bottom surface of the power supply side recess 63. It is attached via a power supply side elastic member 62 such as a spring.
- the upper ends of the power supply terminals 64 of the power supply bases 18a to 18c of the first to third examples are located above the surface of the base body 61, and the upper ends of the power supply terminals 64 are high from the surface of the base body 61. This is longer than the distance between the lower end of the power receiving terminal 24 and the bottom surface of the apparatus main body 21.
- the power receiving terminal 24 is a film, and the film surface is the lower end.
- the lid portions 25 a and 25 b are provided on a rotating device 27 that is rotatably attached to the bottom surface of the device main body 21.
- the lid portions 25 a and 25 b are attached to the rotating device 27 at the edge portions of the lid portions 25 a and 25 b, and the lid portions 25 a and 25 b are rotated together with the rotating device 27.
- the lid 25a when the device main body 21 is in a horizontal posture, the lid 25a is positioned by its own weight so that the portion attached to the rotating device 27 is positioned upward and the opposite portion is positioned downward. Accordingly, the lid 25a does not close the opening of the power receiving side recess 23.
- the lid 25a When the apparatus main body 21 is in a horizontal posture, the lid 25a is in a vertical posture, and the lid of the power receiving side concave 23 is opened. It has become.
- the lid portion 25b is attached to the device main body 21 by the power receiving side expansion / contraction member 28, and in a state where the lid portion 25b is not pressed, the power receiving side concave portion 23 of the suction device 19b of the second example. Is covered by a lid portion 25b.
- two flexible cover parts 25c and 25d are provided so as to cover the power receiving side concave part 23 with the side surfaces in contact with each other, and the two cover parts 25c, The contact portion of 25d is positioned near the center of the power receiving side recess 23.
- the power receiving side concave portion 23 is covered with lid portions 25b, 25c and 25d, and the suction devices 19b and 19c of the second and third examples are vacuum chambers.
- the residual gas inside the vacuum chamber 16 does not enter the power receiving side recess 23 of the adsorption devices 19 b and 19 c of the second example and the third example. Since the power receiving side recess 23 is covered when the suction device 19a is in the vertical posture, when the suction device 19a of the first example is moved in the vertical posture, the residual gas in the moving vacuum chamber 16 is changed to the power receiving side concave portion. It is possible to prevent entry into the interior of 23.
- the suction devices 19a to 19c of the first to third examples are placed in a horizontal posture, and are arranged above the power supply bases 18a to 18c of the first to third examples by a moving device (not shown).
- the suction devices 19a to 19c of the first to third examples are lowered while being in a horizontal posture by the moving device.
- the lid portion 25a in the vertical posture is inserted into the power supply side recess 63.
- the depth of the power supply side recess 63 is made longer than the height from the lower end of the lid portion 25a in the vertical posture to the bottom surface of the apparatus main body 21. Therefore, the lower end of the cover portion 25a is connected to the bottom surface of the power supply side recess 63. Without contact, the lower end of the power receiving terminal 24 and the upper end of the power supply terminal 64 are in contact with each other.
- the power supply terminal 64 presses the lid portion 25b from below.
- the power receiving side expansion / contraction member 28 is compressed and deformed, the lid portion 25b is pushed upward, the power feeding terminal 64 is moved from a position directly below the power receiving terminal 24, and the power receiving terminal 24 located inside the power receiving side concave portion 23 receives the power. It is exposed to the external atmosphere of the side recess 23.
- the suction device 19c of the third example when the suction device 19c of the third example is lowered, the upper end of the power supply terminal 64 comes into contact with the portion where the two lid portions 25c and 25d are in contact. It is placed in a position where it can be done.
- the two lid portions 25c and 25d are made of a material that is deformed when pressed. After the upper end of the power supply terminal 64 comes into contact with the portion where the two lid portions 25c and 25d are in contact with each other, When the three examples of the suction device 19c are lowered, the contact portions of the two lid portions 25c and 25d are pressed from below and pushed upward, and the shapes of the lid portions 25c and 25d are curved and deformed. The portions of the lid portions 25 c and 25 d positioned immediately below are moved, and the power receiving terminal 24 positioned inside the power receiving side concave portion 23 is exposed to the external atmosphere of the power receiving side concave portion 23.
- the suction devices 19a to 19c of the first to third examples When the lower ends of the power receiving terminals 24 of the suction devices 19a to 19c of the first to third examples come into contact with the upper ends of the power supply terminals 64 of the power supply bases 18a to 18c of the first to third examples, When the suction devices 19a to 19c of the first to third examples are further lowered, the power supply side elastic member 62 is compressed and the power supply side elastic member 62 is shortened. However, the suction devices 19a to 19c of the first to third examples are close to the power supply bases 18a to 18c of the first to third examples, and the bottom surface of the device main body 21 and the surface of the base main body 61 come into contact with each other. The suction devices 19a to 19c of the first to third examples are placed on the power supply bases 18a to 18c of the first to third examples.
- the power receiving terminal 24 is electrically connected to the adsorption electrode 22, and the power supply terminal 64 is electrically connected to a power supply device 66 arranged outside the vacuum chamber 16.
- a variable DC voltage source is used for the power supply device 66.
- the power supply device 66 When the power supply device 66 is activated and outputs a DC adsorption voltage, it receives power from the power supply terminal 64. An adsorption voltage is applied to the adsorption electrode 22 via the terminal 24.
- the etching gas is introduced from the processing unit 17 into the vacuum chamber 16 in which the power supply bases 18a to 18c of the first to third examples are arranged, plasma of the etching gas is generated.
- the plasma becomes a gaseous substance having electrical conductivity and comes into contact with the substrates 5 1 to 5 3 on the adsorption devices 19a to 19c of the first to third examples and the wall surface of the vacuum chamber 16, and the substrate 5 1 to 5 3 are connected to the ground potential, the equivalent capacitance is charged, and the substrates 5 1 to 5 3 are adsorbed to the adsorption electrodes 22 of the adsorption devices 19a to 19c of the first to third examples.
- the introduction of the etching gas is stopped and the plasma is extinguished.
- the adsorption electrode 22 is connected to the same ground potential as the vacuum chamber 16 and the electric charge accumulated in the equivalent capacitance is discharged.
- the adsorption devices 19a to 19c of the example are separated from the power supply bases 18a to 18c of the first to third examples, and the power receiving terminal 24 and the power supply terminal 64 are separated.
- the suction device 19a of the first example is changed from the horizontal posture to the vertical posture in order to cover the power receiving side concave portion 23 with the lid portion 25a after the feeding terminal 64 is removed from the power receiving side concave portion 23.
- the compressed power receiving side elastic member 28 returns to the original shape, and the power receiving side recess of the suction device 19b of the second example returns.
- 23 is covered with a lid portion 25b.
- the adsorption electrodes 22 of the adsorption devices 19a to 19c of the first to third examples are connected to the ground potential and remain charged after being separated from the power supply terminal 64.
- the potential of the adsorption electrode 22 and the ground potential The voltage that is the difference between and is in a large state. In this state, when the power receiving terminal 24 comes into contact with a reactive gas, the power receiving terminal 24 may be altered or corroded, or a thin film may be formed.
- the power receiving side concave portion 23 is covered with the lid portions 25a to 25d, so that it is separated from the power supply bases 18a to 18c of the first to third examples. Since the residual gas inside the vacuum chamber 16 that is carried in cannot be penetrated into the power receiving side recess 23 when it is carried into another vacuum chamber 16 with the lid on, the power receiving terminal 24 has Inconveniences such as alteration, corrosion, and thin film formation are unlikely to occur.
- the output voltage of the power supply device 66 is set to the ground potential, and the power supply terminal 64 is connected to the ground potential. Inconveniences such as alteration, corrosion, and thin film formation are unlikely to occur.
- the power receiving devices 20d and 20e of the suction devices 19d and 19e of the fourth and fifth examples include the switching device 36, the rectifier circuit 34, the power receiving side control device 35, and the power receiving side ground terminal 33 in addition to the suction electrode 22. And power receiving side control terminals 32 and 42 and power receiving terminals 31 and 41.
- the power receiving terminals 31, 41 and the power receiving side control terminals 32, 42 are arranged in the vicinity of the bottom surface inside the apparatus main body 21 so as not to contact the atmosphere outside the apparatus main body 21.
- the power receiving side ground terminal 33 is provided on the bottom surface of the apparatus main body 21, and is here exposed to the inside of the grounding recess 38 having a depth greater than the thickness of the power receiving side ground terminal 33.
- the power receiving terminals 31 and 41 are connected to the rectifier circuit 34, and the rectifier circuit 34 and the power receiving side ground terminal 33 are connected to the adsorption electrode 22 via the switching device 36.
- the power receiving terminals 31 and 41 may be connected to the rectifier circuit 34 via the switching device 36, and the rectifier circuit 34 may be connected to the adsorption electrode 22.
- the switching device 36 is controlled by the power receiving side control device 35, and the adsorption electrode 22 is changed to either the power receiving side ground terminal 33 or the power receiving terminal 31 by a signal output from the power receiving side control device 35 to the switching device 36. It connects or operates so that adsorption electrode 22 may be intercepted from both receiving side grounding terminal 33 and rectifier circuit 34.
- the adsorption electrode 22 is connected to the power receiving terminal 31 via the rectifier circuit 34. During conveyance, the adsorption electrode 22 is cut off from both and placed at a floating potential.
- the power supply devices 60d and 60e of the power supply bases 18d and 18e of the fourth example and the fifth example have power supply terminals 65 and 75, power supply side control terminals 67 and 77, and a power supply side ground terminal 84, respectively.
- the power supply terminals 65 and 75 are connected to a power supply device 66 that is an AC voltage source, the power supply side control terminals 67 and 77 are connected to a power supply side control device 69, and the power supply side ground terminal 84 is connected to a ground potential. ing.
- the power receiving terminal 31 and the power receiving side control terminal of the suction device 19d of the fourth example 32, and the power supply terminal 65 and the power supply side control terminal 67 of the power supply base 18d of the fourth example are each constituted by a plate-shaped electrode, whereas the power reception terminal 41 and the power reception terminal of the suction device 19e of the fifth example are configured.
- the side control terminal 42, the power supply terminal 75 of the power supply stand 18e of the fifth example, and the power supply side control terminal 77 are each configured by a coil.
- the power receiving terminal 31 of the suction device 19d of the fourth example and the power supply of the fourth example The power supply terminal 65 of the electrical platform 18d is arranged in parallel and close to each other, and a power-side capacitor is formed using the power reception terminal 31 and the power supply terminal 65 as electrodes, and the power reception terminal 41 of the suction device 19e of the fifth example and the
- the power supply terminals 75 of the five examples of the power supply base 18e are arranged close to each other, and a transformer in which the power reception terminal 41 and the power supply terminal 75 are magnetically coupled is formed.
- the suction devices 19d and 19e of the fourth example and the fifth example are placed on the power supply bases 18d and 18e of the fourth example and the fifth example, respectively, the power supply side control terminals 67 and 77, and the power reception side control terminal 32, 42, the power supply stand 18d and the suction device 19d of the fourth example form a control capacitor by the power supply side control terminal 67 and the power reception side control terminal 32, and the power supply stand 18e of the fifth example and the suction device 19d.
- a transformer in which the power supply side control terminal 77 and the power reception side control terminal 42 are magnetically coupled is formed.
- the power supply side control terminals 67 and 77 are connected to the power supply side control device 69, and a voltage including a control signal is applied from the power supply side control device 69 to the power supply side control terminals 67 and 77, and the power supply side control terminal is determined by the voltage.
- a voltage including a control signal is induced at the power receiving side control terminals 32 and 42, and the control signal is input to the power receiving side control device 35.
- the power receiving side control device 35 switches the connection of the switching device 36 according to the content of the input control signal.
- one of the two switches 37a and 37b is turned on and the other is turned off.
- the power supply side control device 69 sends a signal indicating that the suction electrode 22 is connected to the rectifier circuit 34.
- the power receiving side control device 35 connects the suction electrode 22 to the rectifier circuit 34. In this state, the adsorption electrode 22 is disconnected from the power receiving side ground terminal 33.
- the substrates 5 1 to 5 3 are connected to the ground potential by the plasma, the power supply device 66 operates, and an AC voltage is output
- the fourth example In the power supply base 18d and the suction device 19d, the equivalent capacitance between the substrates 5 1 to 5 3 and the suction electrode 22 and the power-side capacitor are connected in series to the power supply device 66, and the power supply device 66 is AC.
- the voltage rectified by the rectifier circuit 34 is applied to the adsorption electrode 22, and the equivalent capacitance is charged with a voltage of either a positive voltage or a negative voltage.
- the power supply side ground terminal 84 is connected to the ground potential, and in the state where the suction devices 19d and 19e of the fourth example and the fifth example are respectively placed on the power supply bases 18d and 18e of the fourth example and the fifth example,
- the power receiving side ground terminal 33 and the power feeding side ground terminal 84 are in contact with each other, the power receiving side ground terminal 33 is connected to the ground potential, and one end of the coil which is the power receiving terminal 41 of the fifth example is connected to the power receiving side ground terminal 33.
- the rectifier circuit is connected.
- the current rectified at 34 flows to the equivalent capacitor, and the equivalent capacitor is charged with a voltage of either a positive voltage or a negative voltage.
- the midpoint of the coil may be connected to the power receiving side ground terminal 33.
- the vacuum processing is finished.
- the plasma When transported to the next processing, the plasma is extinguished, and when the outputs of the power supply device 66 and the power supply side control device 69 are also stopped, the adsorption electrode 22 becomes a floating potential, and charges remain in the equivalent capacitance. The state where the substrates 5 1 to 5 3 are adsorbed by the adsorption electrode 22 is maintained.
- adsorption of the substrate 5 1-5 3 includes a control signal to the content to connect the adsorption electrode 22 to the power receiving side ground terminal 33 from the power supply side controller 69
- the voltage is output and transmitted to the power receiving side control device 35 via the power supply side control terminals 67 and 77 and the power receiving side control terminals 32 and 42.
- the switching device 36 disconnects the adsorption electrode 22 from the rectifier circuit 34, and receives the power. It can be connected to the ground terminal 33 to discharge the equivalent capacity with the ground potential via the plasma, the adsorption can be stopped, the plasma is extinguished, and the outputs of the power supply device 66 and the power supply side control device 69 are also stopped. Then, the suction devices 19d and 19e of the fourth and fifth examples are moved away from the power supply bases 18d and 18e of the fourth and fifth examples by the moving device and moved.
- the ground-side switch 37a when carrying out to the atmosphere, the ground-side switch 37a is turned on, the power-receiving-side switch 37b is shut off, and the adsorption electrode 22 is exposed to plasma in a state of being connected to the ground potential, and then is carried out to the atmosphere. .
- the surfaces of the power receiving terminals 31 and 41 are covered with an insulating material, and an insulating material that covers at least the surfaces of the power receiving terminals 31 and 41 is provided between the power receiving terminals 31 and 41 and the power feeding terminals 65 and 75. Material is arranged.
- the insulating material covering the surfaces of the power receiving terminals 31 and 41 is a material constituting the apparatus main body 21.
- the power receiving terminals 31 and 41 are at a high voltage due to the residual charge, but the power receiving terminals 31 and 41 are not in contact with the external atmosphere of the apparatus main body 21, so that the power receiving terminals 31 and 41 are altered, No corrosion occurs and no thin film is formed.
- the power receiving terminals 31, 41, the power receiving side control terminals 32, 42, the power feeding terminals 65, 75, and the power feeding side control terminals 67, 77 are arranged in the apparatus main body 21 or the base body 61 and are inside the vacuum chamber 16. Since it is not exposed to the atmosphere, inconveniences such as alteration, corrosion, and thin film formation do not occur.
- the surfaces of the terminals 31, 32, 41, 42, 65, 67, 75, 77 may be covered with a thin film so as not to be exposed to the internal atmosphere of the vacuum chamber 16.
- the power supply side ground terminal 84 is connected to the ground potential and the power reception side ground terminal 33 is placed at the ground potential or the floating potential, the power supply side ground terminal 84 and the power reception side ground terminal 33 are also inconveniences such as alteration, corrosion, and thin film formation. Hard to occur.
- the etching gas plasma is used.
- the processing unit 17 is a sputtering target, and a sputtering gas is introduced into the vacuum chamber 16 from a sputtering gas introduction device.
- the substrates 5 1 to 5 3 are connected to the ground potential by the sputtering gas plasma, and the first to third adsorption devices 19a. Since it is adsorbed by the adsorbing electrodes 22 to 19c, it is included in the vacuum processing apparatus of the present invention.
- a plasma CVD apparatus that introduces a CVD source gas from the processing unit 17 and forms plasma of the source gas to form a thin film on the surfaces of the substrates 5 1 to 5 3 is also included in the vacuum processing apparatus of the present invention.
- the substrate 5 1 to 5 3 placed on the adsorption devices 19a to 19e is electrically connected to the wall of the vacuum chamber 16 as long as it is not limited to plasma but is a gaseous substance having electrical conductivity. And can be used in the present invention since the equivalent capacity can be charged. You may introduce
- the adsorption electrode 22 is disposed inside the apparatus main body 21. However, the adsorption electrode 22 is disposed on the surface of the apparatus main body 21, the adsorption electrode 22 is covered with a protective film, and the adsorption electrode 22 is disposed inside the apparatus main body 21. In addition, the substrate 5 1 to 5 3 may not be contacted and may be separated from the atmosphere in the vacuum chamber 16.
- control signals output from the power supply side control terminals 67 and 77 are received by the power reception side control terminals 32 and 42, but the control signal is superimposed on the voltage output from the power supply terminals 64, 65 and 75, thereby receiving the power reception terminal 24.
- 31, 41 may be extracted by the extraction circuit from the voltage supplied to the power receiving side control device 35.
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Abstract
Description
近年では、バッテリーを搭載し、バッテリーの動作によって基板を吸着した状態で移動できる吸着装置があるが、高価であり、また、体積も大きくなる。
しかしながら、そのような吸着装置では、真空処理中の吸着力や、移動中の吸着力が低下することがあり、対策が求められている。
本願発明は吸着装置であって、前記吸着装置は、前記装置本体が水平姿勢のときに前記蓋部が開けられて前記受電端子と前記給電端子との接触が可能にされ、前記給電端子が前記受電側凹部から抜去されて前記吸着装置が水平姿勢から鉛直姿勢になると、前記受電側凹部は前記蓋部で閉塞される吸着装置である。
本願発明は吸着装置であって、前記蓋部には伸縮部材が設けられ、前記給電端子が前記受電側凹部に挿入されるときに前記蓋部は前記給電端子に押圧され、前記伸縮部材が変形しながら前記蓋部の少なくとも一部は移動して前記受電側凹部が開けられた状態になって前記給電端子と前記受電端子とが接触し、前記給電端子が前記受電側凹部から抜去されると、前記伸縮部材の変形は元に戻り、前記蓋部によって、前記受電側凹部が蓋をされる吸着装置である。
本願発明は吸着装置であって、前記蓋部は押圧されると変形し、押圧が解除されると元の形状に戻る材料で形成され、前記給電端子が前記受電側凹部に挿入されるときに前記蓋部は前記給電端子に押圧され、前記蓋部は変形して前記受電側凹部が開けられた状態になって前記給電端子と前記受電端子とが接触し、前記給電端子が前記受電側凹部から抜去されると、前記蓋部の変形は元に戻り、前記蓋部によって、前記受電側凹部が蓋をされる吸着装置である。
また、本発明は、装置本体と、前記装置本体に設けられた受電端子と、前記装置本体に設けられた整流回路と、前記装置本体に設けられ、前記整流回路を介して前記受電端子に接続された吸着電極と、を有し、前記装置本体の表面に載置された基板に電気伝導性を有する気体状の物質が接触し、前記吸着電極に吸着電圧が印加されると前記基板が前記吸着電極に吸着される吸着装置であって、前記受電端子は前記装置本体の外部の雰囲気とは分離され、前記吸着装置が給電台に載置されると、前記給電台に設けられた給電端子と前記受電端子とが非接触の状態で近接し、前記給電端子に印加される交流電圧を前記受電端子が受電し、前記整流回路を介して前記吸着電極に前記吸着電圧が印加され、前記吸着装置が前記給電台から分離されて移動する際には、前記吸着電極の残留電荷によって前記基板が前記吸着電極に吸着される吸着装置である。
本願発明は吸着装置であって、前記給電台に設けられた給電側接地端子に接触可能な受電側接地端子と、前記吸着電極と前記受電側接地端子との間を導通又は遮断させ、前記吸着電極と前記受電端子との間を導通又は遮断させる切替装置と、前記切替装置の接続を切り替える制御装置とを有し、前記給電端子に印加される交流電圧には前記切替装置の導通と遮断を制御する制御信号が重畳されており、前記受電端子が受電した電圧から前記制御信号が抽出され、前記制御装置に入力される吸着装置である。
本願発明は吸着装置であって、前記給電台に設けられた給電側接地端子に接触可能な受電側接地端子と、前記吸着電極と前記受電側接地端子との間を導通又は遮断させ、前記吸着電極と前記受電端子との間を導通又は遮断させる切替装置と、前記切替装置の接続を切り替える制御装置と、前記制御装置に接続され、前記給電台に設けられた給電側制御端子から前記切替装置の導通と遮断を制御する制御信号が入力される受電側制御端子と、が設けられた吸着装置である。
本願発明は吸着装置であって、前記受電端子と前記給電端子とは、それぞれ平板電極で構成され、前記吸着装置が前記給電台に載置されると、前記受電端子と前記給電端子とでコンデンサが形成される吸着装置である。
本願発明は吸着装置であって、前記給電側制御端子と前記受電側制御端子とはそれぞれ平行平板型電極で構成され、前記吸着装置が前記給電台に載置されると、前記受電側制御端子と前記給電側制御端子とでコンデンサが形成され、前記給電側制御端子が出力する前記制御信号が、前記受電側制御端子に伝達される吸着装置である。
本願発明は吸着装置であって、前記受電端子と前記給電端子とは、それぞれコイルで構成され、前記吸着装置が前記給電台に載置されると、前記受電端子と前記給電端子とが磁気結合したトランスが形成される吸着装置である。
本願発明は吸着装置であって、前記給電側制御端子と前記受電側制御端子とはそれぞれコイルで構成され、前記吸着装置が前記給電台に載置されると、前記受電側制御端子と前記給電側制御端子とが磁気結合したトランスが形成され、前記給電側制御端子が出力する前記制御信号が、前記受電側制御端子に伝達される吸着装置である。
本願発明は吸着装置であって、前記吸着電極上には、複数の前記基板が載置される吸着装置である。
本願発明は吸着装置であって、前記吸着電極上には、複数の前記基板が載置される吸着装置である。
本願発明は吸着装置であって、電気伝導性を有する気体状の前記物質はプラズマである吸着装置である。
本願発明は吸着装置であって、電気伝導性を有する気体状の前記物質はプラズマである吸着装置である。
また、本発明は、電気伝導性を有する気体状の物質が形成される真空槽と、前記真空槽の内部に配置された給電台と、前記給電台に設けられた給電端子と、を有し、前記給電台は、吸着装置が分離可能に配置されるように構成され、前記吸着装置が前記給電台に配置されたときに、前記吸着装置に設けられた受電端子は、前記給電端子に接触し、前記給電端子に接続された電源装置が出力する吸着電圧が、前記給電端子と前記受電端子とを介して、前記吸着装置に設けられた吸着電極に印加され、前記吸着装置に配置された基板が静電吸着される真空処理装置である。
本願発明は前記吸着装置を有する真空処理装置であって、前記吸着装置は、装置本体と、前記装置本体に設けられた受電側凹部とを有し、前記受電端子は前記受電側凹部に少なくとも一部が露出され、吸着電極は前記装置本体に設けられ、前記受電端子に電気的に接続され、前記装置本体の表面に載置された基板に電気伝導性を有する気体状の物質が接触し、前記吸着電極に前記吸着電圧が印加されると前記基板が前記吸着電極に吸着されるようにされ、前記給電端子が前記受電側凹部に挿入されて、前記給電端子が前記受電端子の露出部分に接触すると、前記電源装置が出力する吸着電圧が前記受電端子を介して前記吸着電極に印加され、前記吸着電極に前記吸着電圧が印加された後、前記受電端子と前記給電端子とを離間させると前記吸着電極に残留電荷が残り、前記受電端子と前記給電端子とを離間させて前記吸着装置を移動する際には、前記吸着電極の前記残留電荷によって前記基板が前記吸着電極に吸着されると共に、前記装置本体に設けられた蓋部によって、前記受電側凹部が閉塞される吸着装置である真空処理装置である。
本願発明は真空処理装置であって、前記吸着装置は、前記装置本体が水平姿勢のときに前記蓋部が開けられて前記受電端子と前記給電端子との接触が可能にされ、前記給電端子が前記受電側凹部から抜去されて前記吸着装置が水平姿勢から鉛直姿勢になると、前記受電側凹部は前記蓋部で閉塞される真空処理装置である。
本願発明は真空処理装置であって、前記蓋部には伸縮部材が設けられ、前記給電端子が前記受電側凹部に挿入されるときに前記蓋部は前記給電端子に押圧され、前記伸縮部材が変形しながら前記蓋部の少なくとも一部は移動して前記受電側凹部が開けられた状態になって前記給電端子と前記受電端子とが接触し、前記給電端子が前記受電側凹部から抜去されると、前記伸縮部材の変形は元に戻り、前記蓋部によって、前記受電側凹部が蓋をされる真空処理装置である。
本願発明は真空処理装置であって、前記蓋部は押圧されると変形し、押圧が解除されると元の形状に戻る材料で形成され、前記給電端子が前記受電側凹部に挿入されるときに前記蓋部は前記給電端子に押圧され、前記蓋部は変形して前記受電側凹部が開けられた状態になって前記給電端子と前記受電端子とが接触し、前記給電端子が前記受電側凹部から抜去されると、前記蓋部の変形は元に戻り、前記蓋部によって、前記受電側凹部が蓋をされる真空処理装置である。
本願発明は真空処理装置であって、電気伝導性を有する気体状の物質が形成される真空槽と、前記真空槽の内部に配置された給電台と、前記給電台に設けられた給電端子と、を有し、前記給電台は、吸着装置が分離可能に配置されるように構成され、前記吸着装置が前記給電台に配置されたときに、前記吸着装置に設けられた受電端子は、前記給電端子に非接触で近接し、前記給電端子に接続された電源装置が出力する交流電圧が、前記給電端子を介して前記受電端子に印加され、前記受電端子に接続された整流回路によって整流された整流電圧が前記吸着装置に設けられた吸着電極に印加され、前記吸着装置に配置された基板が静電吸着される真空処理装置である。
本願発明は前記吸着装置を有する真空処理装置であって、前記吸着装置は、装置本体を有し、前記整流回路と前記受電端子と前記吸着電極とは前記装置本体に設けられ、前記装置本体の表面に載置された基板に電気伝導性を有する気体状の物質が接触し、前記吸着電極に前記整流電圧が印加されると前記基板が前記吸着電極に吸着されるように構成され、前記受電端子は前記装置本体の外部の雰囲気とは分離され、前記吸着電極に前記整流電圧が印加された後、前記吸着電極に残留電荷が残り、前記吸着装置が前記給電台から分離されて移動する際には、前記吸着電極の前記残留電荷によって前記基板が前記吸着電極に吸着されるように構成された真空処理装置である。
本願発明は真空処理装置であって、前記給電台には給電側接地端子が設けられ、前記装置本体には、前記給電側接地端子に接触可能な受電側接地端子と、前記吸着電極と前記受電側接地端子との間を導通又は遮断させ、前記吸着電極と前記受電端子との間を導通又は遮断させる切替装置と、前記切替装置の前記導通と前記遮断を制御する制御装置とが設けられ、前記給電端子に印加される交流電圧には前記切替装置の導通と遮断を制御する制御信号が重畳されており、前記受電端子が受電した電圧から前記制御信号が抽出され、前記制御装置に入力される真空処理装置である。
本願発明は真空処理装置であって、前記給電台には給電側接地端子が設けられ、前記装置本体には、前記給電側接地端子に接触可能な受電側接地端子と、前記吸着電極と前記受電側接地端子との間を導通又は遮断させ、前記吸着電極と前記受電端子との間を導通又は遮断させる切替装置と、前記切替装置の前記導通と前記遮断を制御する制御装置と、前記制御装置に接続され、前記給電台に設けられた給電側制御端子から前記制御装置に、前記導通と前記遮断とを制御するための制御信号が入力される受電側制御端子と、が設けられた真空処理装置である。
本願発明は真空処理装置であって、前記受電端子と前記給電端子とは、それぞれ平板電極で構成され、前記吸着装置が前記給電台に載置されると、前記受電端子と前記給電端子とでコンデンサが形成されるように構成された真空処理装置である。
本願発明は真空処理装置であって、前記給電側制御端子と前記受電側制御端子とはそれぞれ平行平板型電極で構成され、前記吸着装置が前記給電台に載置されると、前記受電側制御端子と前記給電側制御端子とでコンデンサが形成され、前記給電側制御端子が出力する前記制御信号が、前記受電側制御端子に伝達される真空処理装置である。
本願発明は真空処理装置であって、前記受電端子と前記給電端子とは、それぞれコイルで構成され、前記吸着装置が前記給電台に載置されると、前記受電端子と前記給電端子とが磁気結合したトランスが形成される真空処理装置である。
本願発明は真空処理装置であって、前記給電側制御端子と前記受電側制御端子とはそれぞれコイルで構成され、前記吸着装置が前記給電台に載置されると、前記受電側制御端子と前記給電側制御端子とが磁気結合したトランスが形成され、前記給電側制御端子が出力する前記制御信号が、前記受電側制御端子に伝達される真空処理装置である。
図1(a)~(c)の符号2は、本発明の真空装置である。
真空処理装置151、152は、真空槽16を有しており、真空槽16の内部には、給電台18と、処理部17とが配置されている。
各真空槽16は、接地電位に接続されており、基板5は接地電位に接続される。
ここでは、処理部17はシャワープレートであり、処理部17からエッチングガスが導入され、真空槽16の内部には、エッチングガスプラズマが形成されており、吸着装置19に吸着された基板5は、基板5の表面に形成された薄膜がエッチングされるようになっている。
図2、図4~図7の符号19a~19eは、具体的な第一例~第五例の吸着装置を示しており、符号18a~18eは、第一例~第五例の吸着装置19a~19eに対応する具体的な第一例~第五例の給電台を示している。
装置本体21の表面上には、複数の基板51~53が載置されている。各基板51~53の真下位置には、吸着電極22が位置するようにされている。
第一例~第三例の吸着装置19a~19cの受電装置20a~20cは、装置本体21の裏面側に設けられた受電側凹部23と、受電側凹部23の内部であって、その底面に配置された受電端子24と、受電側凹部23の蓋をする蓋部25a、25b、25c、25dとをそれぞれ有している。受電端子24は、少なくとも一部が受電側凹部23内に露出しており、ここでは、受電端子24は、金属等の電気導電性を有する部材で構成され、膜表面が受電側凹部23に露出されている。
蓋部25a、25bは、蓋部25a、25bの縁の部分が回転装置27に取り付けられており、蓋部25a、25bは回転装置27と一緒に回転するようにされている。
移動装置により、第一例~第三例の吸着装置19a~19cを水平姿勢にしながら降下させる。
降下により、第一例の吸着装置19aでは、鉛直姿勢の蓋部25aは、給電側凹部63の中に挿入される。
各基板51~53の表面の薄膜がエッチングされると、エッチングガスの導入は停止され、プラズマは消滅される。
この状態で、反応性を有するガスに受電端子24が接触すると、受電端子24の変質や腐食が発生したり、薄膜が形成されたりしてしまう。
次に、図6(a)、(b)と図7(a)、(b)とを参照し、第四例、第五例の吸着装置19d、19eを説明する。
受電側接地端子33は、装置本体21の底面に設けられており、ここでは、受電側接地端子33の厚み以上の深さを有する接地用凹部38の内部に露出して配置されている。
受電端子31、41は整流回路34に接続され、整流回路34と受電側接地端子33とは、切替装置36を介して吸着電極22に接続されている。
受電端子31、41を切替装置36を介して整流回路34に接続させ、整流回路34を吸着電極22に接続させるようにしてもよい。
搬送中は吸着電極22は両方から遮断され、浮遊電位に置かれる。
真空槽16の内部に形成されたプラズマによって、各基板51~53が真空処理されると、真空処理は終了する。
なお、上記各例では、エッチングガスのプラズマを用いる例であったが、他に、例えば処理部17はスパッタリングターゲットであり、真空槽16の内部には、スパッタリングガス導入装置からスパッタリングガスが導入され、真空槽16の内部にスパッタリングガスのプラズマが形成される成膜装置でも、スパッタリングガスのプラズマによって、基板51~53が接地電位に接続され、第一例~第三例の吸着装置19a~19cの吸着電極22に吸着されるため、本発明の真空処理装置に含まれる。
電気伝導性を有する気体状の物質となるガスは、処理部17以外の装置から導入してもよい。
151,152……真空処理装置
16……真空槽
18,18a~18e……給電台
19,19a~19e……吸着装置
21……装置本体
24,31,41……受電端子
32,42……受電側制御端子
34……整流回路
35……受電側制御装置
61……台本体
64,65,75……給電端子
66……電源装置
67、77……給電側制御端子
Claims (28)
- 装置本体と、
前記装置本体に設けられた受電側凹部と、
前記受電側凹部に少なくとも一部が露出された受電端子と、
前記装置本体に設けられ、前記受電端子に電気的に接続された吸着電極と、
を有し、
前記装置本体の表面に載置された基板に電気伝導性を有する気体状の物質が接触し、前記吸着電極に電圧が印加されると前記基板が前記吸着電極に吸着される吸着装置であって、
前記吸着電極は、前記吸着装置が載置される給電台に設けられ、電源装置に接続された給電端子が前記受電側凹部に挿入されて、前記給電端子が前記受電端子の露出部分に接触すると、前記電源装置が出力する吸着電圧が印加され、
前記吸着電極に前記吸着電圧が印加された後、前記受電端子と前記給電端子とを離間させると前記吸着電極に残留電荷が残り、
前記受電端子と前記給電端子とを離間させて前記吸着装置を移動する際には、前記吸着電極の前記残留電荷によって前記基板が前記吸着電極に吸着されると共に、前記装置本体に設けられた蓋部によって、前記受電側凹部が閉塞される吸着装置。 - 前記吸着装置は、前記装置本体が水平姿勢のときに前記蓋部が開けられて前記受電端子と前記給電端子との接触が可能にされ、
前記給電端子が前記受電側凹部から抜去されて前記吸着装置が水平姿勢から鉛直姿勢になると、前記受電側凹部は前記蓋部で閉塞される請求項1記載の吸着装置。 - 前記蓋部には伸縮部材が設けられ、
前記給電端子が前記受電側凹部に挿入されるときに前記蓋部は前記給電端子に押圧され、前記伸縮部材が変形しながら前記蓋部の少なくとも一部は移動して前記受電側凹部が開けられた状態になって前記給電端子と前記受電端子とが接触し、
前記給電端子が前記受電側凹部から抜去されると、前記伸縮部材の変形は元に戻り、前記蓋部によって、前記受電側凹部が蓋をされる請求項1記載の吸着装置。 - 前記蓋部は押圧されると変形し、押圧が解除されると元の形状に戻る材料で形成され、
前記給電端子が前記受電側凹部に挿入されるときに前記蓋部は前記給電端子に押圧され、前記蓋部は変形して前記受電側凹部が開けられた状態になって前記給電端子と前記受電端子とが接触し、
前記給電端子が前記受電側凹部から抜去されると、前記蓋部の変形は元に戻り、前記蓋部によって、前記受電側凹部が蓋をされる請求項1記載の吸着装置。 - 装置本体と、
前記装置本体に設けられた受電端子と、
前記装置本体に設けられた整流回路と、
前記装置本体に設けられ、前記整流回路を介して前記受電端子に接続された吸着電極と、を有し、
前記装置本体の表面に載置された基板に電気伝導性を有する気体状の物質が接触し、前記吸着電極に吸着電圧が印加されると前記基板が前記吸着電極に吸着される吸着装置であって、
前記受電端子は前記装置本体の外部の雰囲気とは分離され、
前記吸着装置が給電台に載置されると、前記給電台に設けられた給電端子と前記受電端子とが非接触の状態で近接し、前記給電端子に印加される交流電圧を前記受電端子が受電し、前記整流回路を介して前記吸着電極に前記吸着電圧が印加され、
前記吸着装置が前記給電台から分離されて移動する際には、前記吸着電極の残留電荷によって前記基板が前記吸着電極に吸着される吸着装置。 - 前記給電台に設けられた給電側接地端子に接触可能な受電側接地端子と、
前記吸着電極と前記受電側接地端子との間を導通又は遮断させ、前記吸着電極と前記受電端子との間を導通又は遮断させる切替装置と、
前記切替装置の接続を切り替える制御装置とを有し、
前記給電端子に印加される交流電圧には前記切替装置の導通と遮断を制御する制御信号が重畳されており、
前記受電端子が受電した電圧から前記制御信号が抽出され、前記制御装置に入力される請求項5記載の吸着装置。 - 前記給電台に設けられた給電側接地端子に接触可能な受電側接地端子と、
前記吸着電極と前記受電側接地端子との間を導通又は遮断させ、前記吸着電極と前記受電端子との間を導通又は遮断させる切替装置と、
前記切替装置の接続を切り替える制御装置と、
前記制御装置に接続され、前記給電台に設けられた給電側制御端子から前記切替装置の導通と遮断を制御する制御信号が入力される受電側制御端子と、
が設けられた請求項5記載の吸着装置。 - 前記受電端子と前記給電端子とは、それぞれ平板電極で構成され、
前記吸着装置が前記給電台に載置されると、前記受電端子と前記給電端子とでコンデンサが形成される請求項5記載の吸着装置。 - 前記給電側制御端子と前記受電側制御端子とはそれぞれ平行平板型電極で構成され、
前記吸着装置が前記給電台に載置されると、前記受電側制御端子と前記給電側制御端子とでコンデンサが形成され、
前記給電側制御端子が出力する前記制御信号が、前記受電側制御端子に伝達される請求項7記載の吸着装置。 - 前記受電端子と前記給電端子とは、それぞれコイルで構成され、
前記吸着装置が前記給電台に載置されると、前記受電端子と前記給電端子とが磁気結合したトランスが形成される請求項5記載の吸着装置。 - 前記給電側制御端子と前記受電側制御端子とはそれぞれコイルで構成され、
前記吸着装置が前記給電台に載置されると、前記受電側制御端子と前記給電側制御端子とが磁気結合したトランスが形成され、
前記給電側制御端子が出力する前記制御信号が、前記受電側制御端子に伝達される請求項7記載の吸着装置。 - 前記吸着電極上には、複数の前記基板が載置される請求項1記載の吸着装置。
- 前記吸着電極上には、複数の前記基板が載置される請求項5記載の吸着装置。
- 電気伝導性を有する気体状の前記物質はプラズマである請求項1記載の吸着装置。
- 電気伝導性を有する気体状の前記物質はプラズマである請求項5記載の吸着装置。
- 電気伝導性を有する気体状の物質が形成される真空槽と、
前記真空槽の内部に配置された給電台と、
前記給電台に設けられた給電端子と、
を有し、
前記給電台は、吸着装置が分離可能に配置されるように構成され、
前記吸着装置が前記給電台に配置されたときに、
前記吸着装置に設けられた受電端子は、前記給電端子に接触し、前記給電端子に接続された電源装置が出力する吸着電圧が、前記給電端子と前記受電端子とを介して、前記吸着装置に設けられた吸着電極に印加され、前記吸着装置に配置された基板が静電吸着される真空処理装置。 - 前記吸着装置を有する請求項16記載の真空処理装置であって、
前記吸着装置は、
装置本体と、
前記装置本体に設けられた受電側凹部とを有し、
前記受電端子は前記受電側凹部に少なくとも一部が露出され、
吸着電極は前記装置本体に設けられ、前記受電端子に電気的に接続され、
前記装置本体の表面に載置された基板に電気伝導性を有する気体状の物質が接触し、前記吸着電極に前記吸着電圧が印加されると前記基板が前記吸着電極に吸着されるようにされ、
前記給電端子が前記受電側凹部に挿入されて、前記給電端子が前記受電端子の露出部分に接触すると、前記電源装置が出力する吸着電圧が前記受電端子を介して前記吸着電極に印加され、
前記吸着電極に前記吸着電圧が印加された後、前記受電端子と前記給電端子とを離間させると前記吸着電極に残留電荷が残り、
前記受電端子と前記給電端子とを離間させて前記吸着装置を移動する際には、前記吸着電極の前記残留電荷によって前記基板が前記吸着電極に吸着されると共に、前記装置本体に設けられた蓋部によって、前記受電側凹部が閉塞される吸着装置である真空処理装置。 - 前記吸着装置は、前記装置本体が水平姿勢のときに前記蓋部が開けられて前記受電端子と前記給電端子との接触が可能にされ、
前記給電端子が前記受電側凹部から抜去されて前記吸着装置が水平姿勢から鉛直姿勢になると、前記受電側凹部は前記蓋部で閉塞される請求項17記載の真空処理装置。 - 前記蓋部には伸縮部材が設けられ、
前記給電端子が前記受電側凹部に挿入されるときに前記蓋部は前記給電端子に押圧され、前記伸縮部材が変形しながら前記蓋部の少なくとも一部は移動して前記受電側凹部が開けられた状態になって前記給電端子と前記受電端子とが接触し、
前記給電端子が前記受電側凹部から抜去されると、前記伸縮部材の変形は元に戻り、前記蓋部によって、前記受電側凹部が蓋をされる請求項17記載の真空処理装置。 - 前記蓋部は押圧されると変形し、押圧が解除されると元の形状に戻る材料で形成され、
前記給電端子が前記受電側凹部に挿入されるときに前記蓋部は前記給電端子に押圧され、前記蓋部は変形して前記受電側凹部が開けられた状態になって前記給電端子と前記受電端子とが接触し、
前記給電端子が前記受電側凹部から抜去されると、前記蓋部の変形は元に戻り、前記蓋部によって、前記受電側凹部が蓋をされる請求項17記載の真空処理装置。 - 電気伝導性を有する気体状の物質が形成される真空槽と、
前記真空槽の内部に配置された給電台と、
前記給電台に設けられた給電端子と、
を有し、
前記給電台は、吸着装置が分離可能に配置されるように構成され、
前記吸着装置が前記給電台に配置されたときに、
前記吸着装置に設けられた受電端子は、前記給電端子に非接触で近接し、前記給電端子に接続された電源装置が出力する交流電圧が、前記給電端子を介して前記受電端子に印加され、前記受電端子に接続された整流回路によって整流された整流電圧が前記吸着装置に設けられた吸着電極に印加され、前記吸着装置に配置された基板が静電吸着される真空処理装置。 - 前記吸着装置を有する請求項21記載の真空処理装置であって、
前記吸着装置は、
装置本体を有し、
前記整流回路と前記受電端子と前記吸着電極とは前記装置本体に設けられ、
前記装置本体の表面に載置された基板に電気伝導性を有する気体状の物質が接触し、前記吸着電極に前記整流電圧が印加されると前記基板が前記吸着電極に吸着されるように構成され、
前記受電端子は前記装置本体の外部の雰囲気とは分離され、
前記吸着電極に前記整流電圧が印加された後、前記吸着電極に残留電荷が残り、
前記吸着装置が前記給電台から分離されて移動する際には、前記吸着電極の前記残留電荷によって前記基板が前記吸着電極に吸着されるように構成された真空処理装置。 - 前記給電台には給電側接地端子が設けられ、
前記装置本体には、
前記給電側接地端子に接触可能な受電側接地端子と、
前記吸着電極と前記受電側接地端子との間を導通又は遮断させ、前記吸着電極と前記受電端子との間を導通又は遮断させる切替装置と、
前記切替装置の前記導通と前記遮断を制御する制御装置とが設けられ、
前記給電端子に印加される交流電圧には前記切替装置の導通と遮断を制御する制御信号が重畳されており、
前記受電端子が受電した電圧から前記制御信号が抽出され、前記制御装置に入力される請求項22記載の真空処理装置。 - 前記給電台には給電側接地端子が設けられ、
前記装置本体には、
前記給電側接地端子に接触可能な受電側接地端子と、
前記吸着電極と前記受電側接地端子との間を導通又は遮断させ、前記吸着電極と前記受電端子との間を導通又は遮断させる切替装置と、
前記切替装置の前記導通と前記遮断を制御する制御装置と、
前記制御装置に接続され、前記給電台に設けられた給電側制御端子から前記制御装置に、前記導通と前記遮断とを制御するための制御信号が入力される受電側制御端子と、
が設けられた請求項22記載の真空処理装置。 - 前記受電端子と前記給電端子とは、それぞれ平板電極で構成され、
前記吸着装置が前記給電台に載置されると、前記受電端子と前記給電端子とでコンデンサが形成されるように構成された請求項24記載の真空処理装置。 - 前記給電側制御端子と前記受電側制御端子とはそれぞれ平行平板型電極で構成され、
前記吸着装置が前記給電台に載置されると、前記受電側制御端子と前記給電側制御端子とでコンデンサが形成され、
前記給電側制御端子が出力する前記制御信号が、前記受電側制御端子に伝達される請求項25記載の真空処理装置。 - 前記受電端子と前記給電端子とは、それぞれコイルで構成され、
前記吸着装置が前記給電台に載置されると、前記受電端子と前記給電端子とが磁気結合したトランスが形成される請求項24記載の真空処理装置。 - 前記給電側制御端子と前記受電側制御端子とはそれぞれコイルで構成され、
前記吸着装置が前記給電台に載置されると、前記受電側制御端子と前記給電側制御端子とが磁気結合したトランスが形成され、
前記給電側制御端子が出力する前記制御信号が、前記受電側制御端子に伝達される請求項27記載の真空処理装置。
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