WO2015151151A1 - 加熱装置、及びこれを備えたプラズマ処理装置 - Google Patents
加熱装置、及びこれを備えたプラズマ処理装置 Download PDFInfo
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- WO2015151151A1 WO2015151151A1 PCT/JP2014/059435 JP2014059435W WO2015151151A1 WO 2015151151 A1 WO2015151151 A1 WO 2015151151A1 JP 2014059435 W JP2014059435 W JP 2014059435W WO 2015151151 A1 WO2015151151 A1 WO 2015151151A1
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- frequency power
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/56—After-treatment
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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
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67103—Apparatus for thermal treatment mainly by conduction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32458—Vessel
- H01J37/32522—Temperature
-
- 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
- H01L21/687—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 using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—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 using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68742—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 using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a lifting arrangement, e.g. lift pins
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
Definitions
- the present invention relates to a heating apparatus that can efficiently heat an object to be heated with a small heating element, and a plasma processing apparatus including the heating apparatus.
- the plasma processing apparatus is generally disposed in a processing chamber having a plasma generation space provided in an upper portion thereof, a processing space provided in a lower portion of the plasma generation space, and a processing object to be mounted thereon.
- a base that is placed, a processing gas supply unit that supplies a processing gas to the plasma generation space, a plasma generation unit that converts the processing gas supplied to the plasma generation space into plasma using high-frequency power, and the plasma generation unit And a high-frequency power source for plasma generation for supplying high-frequency power.
- the processing gas supplied to the plasma generation space is converted to plasma by the plasma generation unit, and the substrate placed on the base in the processing space is processed by the plasma processing gas.
- a heating device disclosed in Patent Document 1 below is known as a heating device for heating a substrate.
- This heating device is composed of a heater embedded in the base and a heater power supply for supplying electric power to the heater.
- the heater is made of a filament formed of carbon or the like and an insulating material such as ceramics surrounding the filament. It consists of a body and is heated by generating Joule heat by energizing the filament from the heater power supply.
- a heater power source for generating Joule heat a commercial AC power source (AC 100 V or 200 V) having a frequency of 50 Hz or 60 Hz or a DC power source has been conventionally used.
- a necessary heat generation amount for heating the substrate to a desired temperature is obtained.
- the filament needs to have a length corresponding to its specific resistance (electrical resistivity) [ ⁇ ⁇ m], and there is a limit to adapting it to a base to be miniaturized. That is, there is a problem that the size of the heater exceeds the size of the base, and the apparatus cannot be reduced in size.
- the present invention has been made in view of the above circumstances, and an object thereof is to provide a heating device that can be efficiently heated with a small heating element, and a plasma processing apparatus including the same.
- ⁇ ⁇ ⁇ [ ⁇ ⁇ H] which is the product of electrical resistivity ⁇ [ ⁇ ⁇ m] and permeability ⁇ [H / m]
- ⁇ ⁇ ⁇ H which is the product of electrical resistivity ⁇ [ ⁇ ⁇ m] and permeability ⁇ [H / m]
- the present invention relates to a heating apparatus including a heating element including a conductor having a value of 13 or more and a heating high-frequency power source that supplies high-frequency power to the heating element.
- the skin depth d [m] is expressed by the following equation, where the magnetic permeability of the conductor is ⁇ [H / m].
- d (2 ⁇ / ( ⁇ ⁇ ⁇ )) 1/2
- ⁇ is an angular frequency [rad / s].
- d ( ⁇ / ( ⁇ ⁇ f ⁇ ⁇ )) 1/2
- the resistance value R 1 [ ⁇ ] is (Formula 5)
- R 1 ((f ⁇ ⁇ ⁇ ⁇ ) / ⁇ ) 1/2 ⁇ (L / D)) It becomes.
- FIG. 2 shows the results of calculating each resistance value [ ⁇ ] and flowing current [A] when 60 Hz) (hereinafter simply referred to as “AC power”) is applied.
- the resistance value R 1 [ ⁇ ] when applying high-frequency power was calculated according to Equation 5 above.
- the resistance value R 2 [ ⁇ ] when applying DC power was calculated by the following equation.
- R 2 (4 ⁇ ⁇ L) / ( ⁇ ⁇ D 2 )
- the resistance value R 3 [ ⁇ ] when AC power is applied depends on the conductor when the skin depth due to the skin effect is less than the radius of the conductor. In the case where the skin depth is equal to or greater than the radius of the conductor, the following equation (8) (same as equation (6) above) was used.
- R 3 ((f ⁇ ⁇ ⁇ ⁇ ) / ⁇ ) 1/2 ⁇ (L / D))
- R 3 (4 ⁇ ⁇ L) / ( ⁇ ⁇ D 2 )
- the resistance value [ ⁇ ] is significantly higher when high frequency power is applied to each conductor than when DC power or AC current is applied.
- a work amount of 30 [W] can be obtained with a small current as compared with the case where DC power or AC power is applied, but the electrical resistivity ⁇ [ ⁇ ⁇ m] and the magnetic permeability ⁇ [H / M] is a conductor (pure iron, permalloy, steel, nickel, nichrome, and SUS304) that has a value of ⁇ ⁇ ⁇ [ ⁇ ⁇ H] of 8.0 ⁇ 10 ⁇ 13 or more.
- conductors lead, aluminum, copper, and silver
- the resistance value [ ⁇ ] when high frequency power is applied is considerably large, and a work amount of 30 [W] can be obtained with a smaller current.
- the resistance value of SUS304 when high frequency power is applied is 9.9 (about 10) [ ⁇ ]
- the resistance value of aluminum is 1.8 [ ⁇ ].
- the current required to obtain a work amount of 30 [W] is about 1/5, while 55.1 [A] in the case of SUS304, and 127.6 in the case of aluminum. [A] is about 2.3 times.
- nichrome is generally used as a heating element in general, but heat is generated compared to the resistance value (0.228 [ ⁇ ]) indicated by nichrome when conventional DC power or AC power is used.
- the resistance value (9.9 [ ⁇ ]) indicated by SUS304 is about 43 times, and according to the present invention, the conventional heating mechanism In comparison with SUS304, a very large resistance value can be obtained, and the necessary Joule heat can be obtained with a small current (the high frequency current necessary for obtaining a work amount of 30 [W] is 55 in the case of SUS304. .1 [A], whereas the direct current or alternating current of Nichrome is 443.1 [A], which is about 8 times).
- the heating element when high frequency power is used as a heating power source, the heating element exhibits a large resistance value [ ⁇ ], and thus the heating element can be downsized.
- DC power or AC power when used as a heating power source, it is necessary to increase the resistance value [ ⁇ ] in order to suppress the flowing current.
- the length of the heating element Must be lengthened, that is, the heating element must be enlarged.
- a heating element including a conductor having a value of ⁇ ⁇ ⁇ [ ⁇ ⁇ H] of 8.0 ⁇ 10 ⁇ 13 or more is compared to that including another conductor. Since the resistance value is large, the heating element can be downsized.
- the same work amount that is, a current for obtaining Joule heat may be smaller than that of DC power and AC power, and the ⁇ ⁇ ⁇ [ ⁇ ⁇ H] is If the heating element includes a conductor exhibiting a value of 8.0 ⁇ 10 ⁇ 13 or more, the same Joule heat can be obtained with a smaller current.
- DC power and AC power are unsuitable as a power source for heating a base that is miniaturized according to the substrate, such as a plasma processing apparatus that processes a substrate having a diameter of 1 inch or less. Electricity is more appropriate.
- the resistance value can be set large, and the same Joule heat can be obtained with a smaller current, so that the ⁇ ⁇ ⁇ [ ⁇ ⁇ H] is 8.0 ⁇ 10 ⁇ .
- Those including a conductor having a value of 13 or more are preferred.
- the heating device of the present invention it is possible to efficiently heat an object to be heated with a small heating element.
- iron, cobalt, nickel, gadolinium, stainless steel, Fe-Co, Fe-Ni, Fe-Co are used as conductors in which ⁇ ⁇ ⁇ [ ⁇ ⁇ H] is 8.0 ⁇ 10 ⁇ 13 or more.
- -Ni, Co-Ni, Fe-Si, Fe-Mn-Zn, Fe-Ni-Zn, Fe-Co-Ni-Cr, Fe-Co-Ni-P, Fe-Co-B, Fe-Co-Cr examples thereof include ferromagnetic materials such as -B and Fe-Co-V, nichrome, and alloys of one or more of these with lanthanoids.
- the heating element can take a form in which such a conductor is appropriately coated on a base material.
- the coating thickness is appropriately applied with a high frequency. It is preferable that the skin thickness is equal to or greater than the skin thickness of the skin effect.
- the heating element includes a conductor having a value of ⁇ ⁇ ⁇ [ ⁇ ⁇ H] of 4.0 ⁇ 10 ⁇ 11 or more in that the heating element exhibits a larger resistance value [ ⁇ ]. Is more preferable.
- the frequency of the high frequency power is preferably 100 kHz or more.
- the resistance value [ ⁇ ] of the heating element is proportional to the length and the frequency of the high-frequency power. Therefore, by setting the frequency of the high-frequency power to 100 kHz or more, the length of the heating element can be set to a length that can correspond to miniaturization.
- the frequency is preferably 300 kHz or more, and more preferably 10 MHz or more.
- the heating device further includes a current adjusting unit that adjusts a current supplied from the heating high-frequency power source to the heating element.
- a current adjusting unit that adjusts a current supplied from the heating high-frequency power source to the heating element.
- the present invention also includes a processing chamber having a processing chamber therein, a base disposed in the processing chamber on which a processing target is placed, and a processing gas supply unit that supplies a processing gas into the processing chamber.
- a plasma processing apparatus comprising: a plasma generating unit that converts the processing gas supplied into the processing chamber into plasma by high-frequency power; and a high-frequency power source for plasma generation that supplies high-frequency power to the plasma generating unit, And further comprising the heating device,
- the said heat generating body is attached to the said base in the state which was coat
- the heating device is a small heating element and can be efficiently heated. Therefore, even if the plasma processing apparatus using this is a small one that processes a substrate having a diameter of 1 inch or less and the base on which the substrate is placed is also a small size, the heating element is covered with an insulator. Alternatively, it can be attached to the base or embedded in the base while being embedded in an insulator. Further, by using such a heating device, the substrate on the base can be heated to a target temperature in a short time.
- the high-frequency power source for heating is connected to the base and the heating element to supply high-frequency power to the base and the heating element.
- high frequency power is applied to a base, a bias potential is applied to the base, and the substrate is processed in such a state that the bias potential is applied to the base. Therefore, if high frequency power is supplied from the same high frequency power source to the base and the heating element and is shared, the high frequency power source can be reduced and the cost of the plasma processing apparatus can be reduced.
- the heating high-frequency power source is connected to the base and the heating element via a connection switching unit, and is selectively connected to the base or the heating element by switching by the connection switching unit. It is preferable that high frequency power is selectively supplied to the base or the heating element.
- the heating apparatus is mainly used for the preliminary heating of the substrate performed before the start of the process in order to realize a stable process immediately after the start of the plasma process. Therefore, high-frequency power may be supplied to the heating device at the time of preliminary heating before the start of processing. On the other hand, high-frequency power may be supplied to the base during processing in order to give a bias potential.
- high-frequency power can be supplied to the heating element during preheating before the start of processing, and high-frequency power can be supplied to the base during processing. Moreover, by doing in this way, consumption of excess electric power can be suppressed and it is preferable on energy efficiency.
- the heating device can heat an object to be heated with a small heating element and efficiently.
- this heating apparatus can be suitably applied to a small plasma processing apparatus that processes a substrate having a diameter of 1 inch or less, and generates heat even if the base on which the substrate is placed is a small size.
- the body is covered with an insulator or embedded in the insulator, and can be attached to the base, or embedded in the base, and by using such a heating device, The substrate can be heated to the target temperature in a short time.
- this heating apparatus when it is necessary to supply high-frequency power to give a bias potential to the base, a high-frequency power source for supplying high-frequency power to the heating element is connected to the high-frequency power In this way, the power supply can be reduced, and the cost of the plasma processing apparatus can be reduced.
- FIG. 1 is an explanatory diagram showing a schematic configuration of the plasma processing apparatus according to the present embodiment.
- the plasma processing apparatus 1 of this example includes a processing chamber 2, a coil 5, a first high-frequency supply unit 6, a processing gas supply unit 7, a base 9, an elevating mechanism 10, an exhaust device 12, and heating. It consists of device 13.
- the processing chamber 2 includes an upper chamber 3 having a plasma generation space 3a and a lower chamber 4 provided below and having a processing space 4a communicating with the plasma generation space 3a.
- the base 9 is disposed.
- the lower chamber 4 is grounded.
- the plasma generation space 3a and the processing space 4a constitute a processing chamber.
- the processing gas supply unit 7 supplies a processing gas via a supply pipe 8 connected to the plasma generation space 3 a of the upper chamber 3.
- the type of processing gas is set in accordance with the processing of the substrate and is not limited at all. However, when one type or two or more processing gases are set and two or more processing gases are supplied. Each processing gas is supplied into the plasma generation space 3a via each supply pipe 8 provided for each processing gas.
- the coil 5 is wound outward from the upper chamber 3, and in this example, is wound three times, one end is connected to the first high-frequency supply unit 6, and the other end is grounded.
- the first high frequency supply unit 6 is also grounded.
- the frequency of the high-frequency power supplied from the first high-frequency supply unit 6 to the coil 5 is generally 13.56 MHz, but is not limited to this.
- the number of windings of the coil 5 is not limited to three.
- the elevating mechanism 10 is connected to the base 9 to elevate it, and is composed of a cylinder or the like, and is held by a base member 18 disposed in the processing space 4a.
- the exhaust device 12 includes a vacuum pump or the like, and exhausts gas in the processing chamber 2 from an exhaust port 4b formed in the lower chamber 4 via an exhaust pipe 11 connected thereto, thereby generating the plasma.
- the space 3a and the processing space 4a are evacuated.
- the heating device 13 includes an insulating holding body 15 fixed to the lower surface of the base 9, a heating element 14 formed in a spiral shape and embedded in the holding body 15, and the base It comprises a second high-frequency supply unit 16 connected to the base 9 and one end of the heating element 14, and a current adjustment unit 17 connected to the other end of the heating element 14.
- the second high-frequency supply unit 16 is grounded and supplies high-frequency power having a frequency of 100 kHz or more to the base 9 and the heating element 14.
- the base 9 is grounded via the base member 18 and the lower chamber 4, and includes a circuit including the second high-frequency supply unit 16 and the base 9, a two high-frequency supply unit 16, a heating element 14, and a current adjustment unit. 17 are formed in parallel.
- the current adjusting unit 17 includes an amplifier unit, and the current flowing through the heating element 14 can be adjusted by adjusting a control signal of the amplifier unit.
- the heating element 14 has a value ⁇ ⁇ ⁇ [ ⁇ ⁇ H] of 8.0 ⁇ 10 ⁇ 13 or more, which is the product of the electrical resistivity ⁇ [ ⁇ ⁇ m] and the magnetic permeability ⁇ [H / m].
- conductors include iron, cobalt, nickel, gadolinium, stainless steel, Fe-Co, Fe-Ni, Fe-Co-Ni, Co-Ni, Fe-Si, and Fe-Mn-Zn.
- the heating element 14 can also take a form in which the conductor is appropriately coated on the base material. When coating, the coating thickness of the skin effect is manifested when a high frequency of a frequency is appropriately applied. The thickness is preferably equal to or greater than the skin thickness.
- examples of the insulator constituting the holding body 15 include ceramics such as magnesia, alumina, zirconia, and mica, and resins such as polyimide and silicone.
- symbol 19 in FIG. 1 is a bellows seal.
- the substrate K is placed on the base 9, the inside of the processing chamber 2 is evacuated by the exhaust device 12, and the lifting mechanism 10 High-frequency power is supplied from the second high-frequency supply unit 16 to the base 9 and the heating element 14 with the base 9 raised appropriately.
- the heating element 14 generates heat, and the substrate K is heated by the heat energy via the holding body 15 and the base 9.
- the current flowing through the heating element 14 is adjusted by the current adjusting unit 17 so that the substrate K can be heated to a target temperature in a target time. In this way, the substrate K is preheated.
- a processing gas is appropriately supplied into the plasma generation space 3a by the processing gas supply unit 7, and high-frequency power is supplied from the first high-frequency supply unit 6 to the coil 5 to enter the plasma generation space 3a.
- the supplied processing gas is turned into plasma.
- the substrate K is appropriately processed with the plasma processing gas.
- a bias potential is applied to the substrate 9 by the generation of plasma, and the substrate K is also processed by ions in the plasma attracted by the bias potential.
- the plasma processing apparatus 1 is returned to the initial state.
- the current for obtaining the same work amount can be smaller than that of DC power and AC power.
- the same Joule heat can be obtained with a smaller current than in the prior art.
- the resistance value with respect to the high frequency power is large, and therefore, when the resistance value is the same, the size can be reduced.
- the above-described conductor is used as the heating element 14, and high-frequency power is applied to the conductor from the second high-frequency supply unit 16, so that the heating element 14 can be reduced in size. Further, since the substrate K can be heated to the target temperature with a small current, the substrate K can be heated efficiently and efficiently.
- the heating element 14 can be reduced in size. It can be suitably applied to the base 9 that is downsized together.
- the amount of heat generated by the heating element 14, that is, the heating temperature can be adjusted to an appropriate temperature.
- the high frequency power source for applying a bias potential to the base 9 and the power source for heating the base 9 are used as the common second high frequency supply unit 16, so that the high frequency power source for the bias potential is used.
- the power source can be reduced, and the cost of the plasma processing apparatus 1 can be reduced.
- the resistance value [ ⁇ ] of the heating element 14 when high-frequency power is supplied is proportional to the length and the frequency of the high-frequency power. Therefore, the higher the frequency of the supplied high frequency power, the shorter the length of the heat generating element 14, that is, the size can be reduced.
- the frequency of the high-frequency power supplied by the second high-frequency supply unit 16 is preferably 100 kHz or more, more preferably 300 kHz or more as described above, and 10 MHz or more. Further preferred.
- the present invention can take the form of the plasma processing apparatus 1 ′ shown in FIG. 3.
- the same components as those in the plasma processing apparatus 1 of the above example are denoted by the same reference numerals.
- a changeover switch 20 is provided in the heating apparatus 13 ′ so that the second high-frequency supply unit 16 is connected to the base 9 and the heating element 14 via the changeover switch 20.
- the second high-frequency supply unit 16 is alternatively connected to the base 9 or the heating element 14 by the changeover of the changeover switch 20 and is selectively connected to the base 9 or the heating element 14. Supply high frequency power.
- the heating of the base 9 is mainly performed at the time of preliminary heating of the substrate K performed before the start of the process in order to realize a stable process immediately after the start of the plasma process.
- high-frequency power may be supplied to the heating element 14 at the time of preliminary heating before the start of processing, while high-frequency power may be supplied to the base 9 during processing to provide a bias potential. . Therefore, by providing the changeover switch 20, high frequency power can be supplied to the heating element 14 during preheating before the start of processing, and high frequency power can be supplied to the base 9 during processing. By doing in this way, consumption of excess electric power can be suppressed and it is preferable on energy efficiency.
- the present invention can take the form of the plasma processing apparatus 1 ′′ shown in FIG. 4.
- the same constituent elements as those of the plasma processing apparatus 1 of the above example are the same.
- the code is attached.
- the plasma processing apparatus 1 ′′ includes a heating device 13 ′′ in which a high-frequency power source to be supplied to the base 9 and a high-frequency power source to be supplied to the heating element 14 are separately provided.
- the high frequency power is supplied from the second high frequency supply unit 16, and the high frequency power is supplied to the heating element 14 from the third high frequency power supply unit 21.
- the heating element 14 is embedded in the holding body 15 and the holding body 15 is attached to the lower surface of the base 9.
- the present invention is not limited to this, and includes the heating element 14.
- the holding body 15 may be embedded in the base.
- the heating element 14 is not embedded in the holding body 15, but the heating element 14 covered with an insulator is attached to the lower surface of the base 9 or embedded in the base 9. good.
- ICP inductively coupled
- CCP capacitively coupled
- the substrate K as a processing target is not limited at all, and examples thereof include a substrate made of silicon, silicon carbide, sapphire, compound semiconductor, glass, resin, or the like.
- heating device 13 is applied to the plasma processing device 1, 1 ', 1 ", it is not limited to this, and it may be used alone or applied to other devices.
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Abstract
Description
(数式1)
R1=(ρ/d)・(L/(π・(D-d)))
そして、直径D[m]が表皮深さd[m]よりも十分に大きい、即ち、D≧dであるとすると、抵抗値R1[Ω]は次式によって近似される。
(数式2)
R1≒(ρ/d)・(L/(π・D))
(数式3)
d=(2ρ/(ω・μ))1/2
ただし、ωは角周波数[rad/s]である。
また、角周波数ω[rad/s]は、2πfであるから(fは周波数[Hz])、
(数式4)
d=(ρ/(π・f・μ))1/2
となり、よって、抵抗値R1[Ω]は、
(数式5)
R1=((f・ρ・μ)/π)1/2・(L/D))
となる。
また、直流電力を印加する場合の抵抗値R2[Ω]は、次式により算出した。
(数式6)
R2=(4ρ・L)/(π・D2)
更に、交流電力を印加する場合の抵抗値R3[Ω]は、導体に応じて、表皮効果による表皮深さが、当該導体の半径未満となる場合には、次式数式7(上記数式5に同じ)により算出し、表皮深さが、当該導体の半径以上となる場合には、次式数式8(上記数式6に同じ)により算出した。
(数式7)
R3=((f・ρ・μ)/π)1/2・(L/D))
(数式8)
R3=(4ρ・L)/(π・D2)
更に、前記加熱装置を備え、
前記発熱体は、絶縁体で被覆、若しくは絶縁体中に埋設された状態で、前記基台に付設、又は前記基台内に埋設されたプラズマ処理装置に係る。
2 処理チャンバ
3 上部チャンバ
4 下部チャンバ
5 コイル
6 第1高周波供給部
7 処理ガス供給部
9 基台
13 加熱装置
14 発熱体
15 保持体
16 第2高周波供給部
17 電流調整部
Claims (9)
- 電気抵抗率ρ[Ω・m]と透磁率μ[H/m]との積であるρ・μ[Ω・H]が、8.0×10-13以上の値を有する導体を含む発熱体と、該発熱体に高周波電力を供給する加熱用高周波電源とから構成したことを特徴とする加熱装置。
- 前記高周波電力の周波数を100kHz以上としたことを特徴とする請求項1記載の加熱装置。
- 前記高周波電力の周波数を300kHz以上としたことを特徴とする請求項1記載の加熱装置。
- 前記高周波電力の周波数を10MHz以上としたことを特徴とする請求項1記載の加熱装置。
- 前記加熱用高周波電源から前記発熱体に供給される電流を調整する電流調整部を更に備えていることを特徴とする請求項1乃至4記載のいずれかの加熱装置。
- 前記発熱体に含まれる導体は、鉄、コバルト、ニッケル、ニクロム、ガドリニウム、ステンレス、Fe-Co、Fe-Ni、Fe-Co-Ni、Co-Ni、Fe-Si、Fe-Mn-Zn、Fe-Ni-Zn、Fe-Co-Ni-Cr、Fe-Co-Ni-P、Fe-Co-B、Fe-Co-Cr-B、Fe-Co-V、又は、これらの一以上とランタノイドとの合金から選択されることを特徴とする請求項1乃至5記載のいずれかの加熱装置。
- 内部に処理室を有する処理チャンバと、前記処理室内に配設され、処理対象物が載置される基台と、前記処理室内に処理ガスを供給する処理ガス供給部と、前記処理室内に供給された処理ガスを、高周波電力によってプラズマ化するプラズマ生成部と、該プラズマ生成部に高周波電力を供給するプラズマ生成用高周波電源とを備えたプラズマ処理装置であって、
更に、前記請求項1乃至6に記載したいずれかの加熱装置を備え、
前記発熱体は、絶縁体で被覆、若しくは絶縁体中に埋設された状態で、前記基台に付設、又は前記基台内に埋設されていることを特徴とするプラズマ処理装置。 - 前記加熱用高周波電源は、前記基台及び前記発熱体に接続されて、前記基台及び前記発熱体に高周波電力を供給するように構成されていることを特徴とする請求項7記載のプラズマ処理装置。
- 前記加熱用高周波電源は、接続切換部を介して前記基台及び発熱体に接続され、前記接続切換部による切り換えにより、前記基台又は前記発熱体に択一的に接続されて、前記基台又は前記発熱体に択一的に高周波電力を供給するように構成されていることを特徴とする請求項7記載のプラズマ処理装置。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020157005657A KR101529499B1 (ko) | 2014-03-31 | 2014-03-31 | 가열 장치 및 이를 구비하는 플라즈마 처리 장치 |
| US14/900,535 US20160153091A1 (en) | 2014-03-31 | 2014-03-31 | Heating Device and Plasma Processing Apparatus Provided Therewith |
| PCT/JP2014/059435 WO2015151151A1 (ja) | 2014-03-31 | 2014-03-31 | 加熱装置、及びこれを備えたプラズマ処理装置 |
| JP2014534688A JP5687396B1 (ja) | 2014-03-31 | 2014-03-31 | プラズマ処理装置 |
| EP14887811.9A EP3128533A1 (en) | 2014-03-31 | 2014-03-31 | Heating device and plasma treatment device provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2014/059435 WO2015151151A1 (ja) | 2014-03-31 | 2014-03-31 | 加熱装置、及びこれを備えたプラズマ処理装置 |
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| WO2015151151A1 true WO2015151151A1 (ja) | 2015-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2014/059435 Ceased WO2015151151A1 (ja) | 2014-03-31 | 2014-03-31 | 加熱装置、及びこれを備えたプラズマ処理装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20160153091A1 (ja) |
| EP (1) | EP3128533A1 (ja) |
| JP (1) | JP5687396B1 (ja) |
| KR (1) | KR101529499B1 (ja) |
| WO (1) | WO2015151151A1 (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10044338B2 (en) * | 2015-10-15 | 2018-08-07 | Lam Research Corporation | Mutually induced filters |
| JP7130359B2 (ja) * | 2016-12-05 | 2022-09-05 | 東京エレクトロン株式会社 | プラズマ処理装置 |
| US10388558B2 (en) * | 2016-12-05 | 2019-08-20 | Tokyo Electron Limited | Plasma processing apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10256243A (ja) * | 1997-03-17 | 1998-09-25 | Matsushita Electric Ind Co Ltd | 薄膜、薄膜形成方法及び装置 |
| JP2005191056A (ja) * | 2003-12-24 | 2005-07-14 | Tokyo Electron Ltd | 処理装置 |
| JP2008153194A (ja) * | 2006-12-15 | 2008-07-03 | Ngk Insulators Ltd | 加熱装置 |
Family Cites Families (10)
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| EP0209215B1 (en) * | 1985-06-28 | 1991-06-12 | Metcal Inc. | Ferromagnetic element with temperature regulation |
| US4814587A (en) * | 1986-06-10 | 1989-03-21 | Metcal, Inc. | High power self-regulating heater |
| JPH07183277A (ja) * | 1993-12-21 | 1995-07-21 | Tokyo Electron Ltd | 処理装置 |
| US5954984A (en) * | 1996-07-31 | 1999-09-21 | Thermal Solutions Inc. | Heat retentive food servingware with temperature self-regulating phase change core |
| JP3379394B2 (ja) * | 1997-07-28 | 2003-02-24 | 松下電器産業株式会社 | プラズマ処理方法及び装置 |
| JP4641569B2 (ja) * | 1998-07-24 | 2011-03-02 | 日本碍子株式会社 | 窒化アルミニウム質焼結体、耐蝕性部材、金属埋設および半導体保持装置 |
| JP2000260721A (ja) * | 1999-01-08 | 2000-09-22 | Sony Corp | 化学的気相成長装置、化学的気相成長方法および化学的気相成長装置のクリーニング方法 |
| JP3853723B2 (ja) * | 2002-05-10 | 2006-12-06 | 多津男 庄司 | 導電性物質の温度制御装置 |
| JP2005093886A (ja) * | 2003-09-19 | 2005-04-07 | Hitachi Kokusai Electric Inc | 半導体製造装置 |
| WO2005080627A1 (en) * | 2004-02-17 | 2005-09-01 | Engle George M | Formation of photoconductive and photovoltaic films |
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2014
- 2014-03-31 US US14/900,535 patent/US20160153091A1/en not_active Abandoned
- 2014-03-31 KR KR1020157005657A patent/KR101529499B1/ko active Active
- 2014-03-31 JP JP2014534688A patent/JP5687396B1/ja active Active
- 2014-03-31 EP EP14887811.9A patent/EP3128533A1/en not_active Withdrawn
- 2014-03-31 WO PCT/JP2014/059435 patent/WO2015151151A1/ja not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10256243A (ja) * | 1997-03-17 | 1998-09-25 | Matsushita Electric Ind Co Ltd | 薄膜、薄膜形成方法及び装置 |
| JP2005191056A (ja) * | 2003-12-24 | 2005-07-14 | Tokyo Electron Ltd | 処理装置 |
| JP2008153194A (ja) * | 2006-12-15 | 2008-07-03 | Ngk Insulators Ltd | 加熱装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2015151151A1 (ja) | 2017-04-13 |
| JP5687396B1 (ja) | 2015-03-18 |
| EP3128533A1 (en) | 2017-02-08 |
| US20160153091A1 (en) | 2016-06-02 |
| KR101529499B1 (ko) | 2015-06-17 |
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