WO2012090782A1 - ワーク加熱装置及びワーク処理装置 - Google Patents
ワーク加熱装置及びワーク処理装置 Download PDFInfo
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- WO2012090782A1 WO2012090782A1 PCT/JP2011/079478 JP2011079478W WO2012090782A1 WO 2012090782 A1 WO2012090782 A1 WO 2012090782A1 JP 2011079478 W JP2011079478 W JP 2011079478W WO 2012090782 A1 WO2012090782 A1 WO 2012090782A1
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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
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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
- 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
- H01L21/6831—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 electrostatic chucks
- H01L21/6833—Details of electrostatic chucks
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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
- 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
- H01L21/68785—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 the mechanical construction of the susceptor, stage or support
Definitions
- the present invention relates to a workpiece heating apparatus and a workpiece processing apparatus, and more specifically, a workpiece heating apparatus that can heat a workpiece such as a semiconductor wafer or a glass substrate while adsorbing the workpiece with an electric adsorption force, and a workpiece processing using the workpiece heating apparatus. Relates to the device.
- Such an integrated work suction device conventionally prints a ceramic green sheet with a conductive ink mainly composed of a refractory metal such as tungsten in a predetermined pattern, and laminates the ceramic green sheets for simultaneous firing.
- a plate body in which an adsorption electrode and a heating element are incorporated is generally manufactured.
- the integrated work suction device since these are fired together including the ceramic green sheet printed with conductive ink, there is an error in the thickness of the heating element and the distance from the heating element to the workpiece. It is difficult to obtain a uniform heating temperature over the entire work surface.
- Patent Document 2 a heating element is sandwiched between an adsorption electrode-containing ceramic substrate that is integrally fired with an adsorption electrode inside, and a ceramic substrate that is separately fired, and both ceramics are bonded with an adhesive.
- a laminated structure type work heating apparatus in which substrates are joined has been proposed.
- an aluminum plate is interposed between the chuck member 1 provided with the adsorption electrode 3 for adsorbing the work and the heater member 5 provided with the heating element 7.
- the heat equalizing plate 31 made of, for example, is interposed so that the heat from the heating element 7 is uniformly transmitted to the entire surface of the work 18.
- the soaking plate 31 when the soaking plate 31 is interposed between the chuck member 1 and the heater member 5, including the adhesive layer 32 for laminating them, the heating element 7 of the heater member to the work 18. Since the distance to the workpiece becomes longer, it takes time to transfer heat to the workpiece, and the increase in the number of different types of materials complicates the temperature control of the workpiece, affecting the quality of thin films, etc. The precise temperature control is difficult.
- the chuck member has a long life, such as warping or deflection of the chuck member or cracking in some cases when used for a long time. Had determined the product life.
- the present inventors have intensively studied in order to solve the problems of the conventional workpiece heating apparatus.
- the deformation of the chuck member is caused by the difference in thermal expansion between the chuck member and the heater member.
- the knowledge that it originates in the internal stress which arises was acquired. Therefore, by forming a laminated structure in which both are adsorbed by an electric force such as a Coulomb force, it becomes possible to prevent deformation of the chuck member and the like. Therefore, the present invention has been completed by finding that the adhesive layer for the purpose is not required, and the responsiveness of the work temperature control is increased, and that the heat uniformity over the entire surface of the work can be further improved.
- an object of the present invention is to heat a workpiece with high temperature uniformity and to perform precise temperature control, and to prevent deformation of the chuck member and the like and to use it reliably over a long period of time. It is an object of the present invention to provide a work heating apparatus capable of performing the above and a work processing apparatus using the work heating apparatus.
- a chuck member having a workpiece suction electrode for workpiece suction and a heater member having a heating element for heating the workpiece are stacked, and the workpiece sucked on the chuck member side is heated by the heater member.
- the heater member is provided with a chuck adsorption electrode that adsorbs the chuck member between the surface facing the chuck member and the heating element, and the chuck member and the heater member are detachably stacked. This is a workpiece heating apparatus.
- a chuck member having a workpiece adsorption electrode for workpiece adsorption and a heater member having a heating element for heating the workpiece are stacked, and the workpiece adsorbed on the chuck member side is heated by the heater member.
- the present invention is a work processing apparatus characterized in that the work heating apparatus is placed on a base substrate.
- the workpiece heating apparatus of the present invention is characterized in that a chuck member provided with a workpiece adsorption electrode for workpiece adsorption and a heater member provided with a heating element for workpiece heating are detachably stacked by an electric adsorption force. To do. That is, at least when the work heating device is used, an electric adsorption force is applied between the chuck member and the heater member to fix both, and when the work is not processed before or after use, By stopping the electrical adsorption, the chuck member and the heater member can be easily separated.
- a first configuration example is a work heating apparatus provided with a chuck adsorption electrode for adsorbing a chuck member on the heater member side
- a second configuration example is for adsorbing the heater member on the chuck member side. It is the workpiece
- the present invention forms a state where the chuck member and the heater member are adsorbed by the adsorbing force acting in the vertical direction without using the adhesive layer. Even if this occurs, the chuck member and the heater member can slide in that direction, and the warpage of the chuck member and the heater member can be reduced.
- a chuck suction electrode or a heater suction electrode as described above is provided separately from the workpiece suction electrode. Further, the chuck adsorption electrode and the heater adsorption electrode may be used in combination, but only one of them is sufficient in terms of function.
- the chuck adsorption electrode is provided between the surface facing the chuck member and the heating element.
- the material, forming means, etc. are particularly suitable as long as the chuck member can be attracted by an electrical attracting force such as a Coulomb force, a Johnson-Rahbek force, and a gradient force.
- the metal foil may be formed by etching into a predetermined shape.
- a metal material is sprayed or a printing method using conductive ink is known. This method can be adopted.
- the chuck attracting electrode may be of a so-called monopolar type or bipolar type.
- a flat plate shape, a semicircular shape, a comb tooth shape or a pattern shape such as a mesh should be selected as appropriate.
- the electrode portions formed in a predetermined pattern are mutually connected. It may be composed of bipolar chuck chucking electrodes that are alternately combined so as to generate a potential difference.
- connection terminal that has an ON / OFF switch and can be connected to an external power source.
- the thickness of the chuck attracting electrode is not particularly limited, but is preferably about 25 ⁇ m to 100 ⁇ m in consideration of the distance formed from the heating element to the workpiece.
- a resistance heating element that generates heat when energized can be suitably used.
- a metal plate or a metal foil can be used as they are or etched into a predetermined pattern.
- a known heating element such as a printing method using conductive ink may be employed.
- the heating element is provided with a connection terminal that can be connected to an external power source having an ON / OFF switch, or can be connected to an external power source via the ON / OFF switch. It is preferable to do so.
- this heating element may be divided into a plurality of parts so that the temperature can be controlled for each predetermined area with respect to the workpiece. In this case, a connection terminal is provided on each heating element for each area. It is better to be able to connect to an external power supply.
- the heater member is formed such that a heating element is sandwiched between at least two dielectrics.
- the heater member further faces the chuck member. It is necessary to have a structure having a chuck suction electrode between the surface to be heated and the heating element.
- the chuck suction electrode may be at any position between the surface facing the chuck member and the heating element, but considering the heating response to the workpiece, the distance between the heating element and the chuck suction electrode Is 25 ⁇ m or more and 100 ⁇ m or less, preferably 25 ⁇ m or more and 50 ⁇ m or less.
- the heater member in addition to insulating resin films such as polyimide and polyethylene terephthalate (PET) and ceramic plates, ceramic powder such as alumina powder, aluminum nitride powder, and zirconia powder is sprayed.
- the heating element may be sandwiched by using a known dielectric such as a ceramic sprayed film formed in this manner, and the chuck attracting electrode may be positioned at a predetermined position.
- a heater member may be formed using the dielectric material which consists of the same material, and 2 or more types of dielectric materials may be used.
- the thickness of the heater member is not particularly limited because it varies depending on the type of dielectric used. However, as will be described later, a work heating device is mounted on the base substrate and a cooling mechanism using the base substrate is used. Taking this into consideration, it is desirable that the total thickness including the heating element and the chuck attracting electrode be about 0.2 mm or more and 0.7 mm or less.
- the workpiece can be adsorbed by an electric attraction force using one surface as a workpiece adsorption surface, and the other surface is adsorbed by a chuck adsorption electrode provided in the heater member.
- the workpiece preferably has a structure in which a workpiece attracting electrode is sandwiched between at least two dielectrics.
- the dielectric used here a known material as mentioned in the formation of the heater member can be used, and a bonding sheet or an adhesive may be used as necessary.
- the workpiece attracting electrode can be formed using a known material as mentioned in the formation of the chuck attracting electrode, and can be a monopolar type or a bipolar type depending on the type and size of the workpiece to be attracted. What is necessary is just to design the shape of a workpiece
- the thickness of the chuck member is not particularly limited, but it is desirable that the thickness be set to about 120 ⁇ m or more and 300 ⁇ m or less in consideration of the distance from the heating element of the heater member to the workpiece.
- the chuck member is provided with a heater adsorption electrode that adsorbs the heater member between the surface facing the heater member and the workpiece adsorption electrode, and the chuck member and the heater member can be attached and detached. Laminate to.
- the heater adsorbing electrode may be any one that can adsorb the heater member with an electric adsorbing force, and can adopt the material, shape, etc., as mentioned for the chuck adsorbing electrode in the first configuration example. The same applies to the point of providing the connection terminal and the thickness of the heater adsorption electrode.
- the heater adsorption electrode may be at any position between the surface facing the heater member and the workpiece adsorption electrode.
- the workpiece adsorption electrode, the heater adsorption electrode, the distance between them is preferably 25 ⁇ m or more and 100 ⁇ m or less, and preferably 25 ⁇ m or more and 50 ⁇ m or less.
- the chuck member in the second configuration example can be the same as the chuck member in the first configuration example except that the heater adsorption electrode is provided as described above, and the thickness includes the heater adsorption electrode. In consideration of the minute, it is desirable that the thickness is about 0.2 mm or more and 1 mm or less.
- the heater member can be the same as the heater member in the first configuration example except that the chuck adsorption electrode is eliminated, and the thickness thereof is set to about 0.1 mm to 0.3 mm. Is desirable.
- the work heating apparatus according to the present invention is preferably used as a work processing apparatus by placing it on a base substrate provided with a conduit for flowing a medium such as gas or liquid.
- a medium such as gas or liquid.
- more appropriate temperature control according to the processing of the workpiece can be performed by the cooling effect of flowing the medium inside the base substrate.
- the heater member has a through-hole that communicates with the gas hole of the base substrate with respect to the base substrate that has a gas channel through which the gas medium flows inside and has a gas hole connected to the pipeline on the surface. It is good to be.
- the heater member and the chuck member are not fixed by the adhesive layer, but are attracted to each other by the electric adsorption force. Since there are microscopic irregularities derived from the surface roughness of the dielectric (which may be a chuck adsorption electrode or a heater adsorption electrode) at least at the interface between these members, it penetrates through the front and back surfaces of the heater member.
- the gas medium supplied from the base substrate side exists at the interface between the heater member and the chuck member and is adsorbed.
- the gas present at the adsorption interface is a good medium for heat, especially when the workpiece is processed in a vacuum state, and its function is remarkable, equivalent to a soaking plate such as a conventionally used aluminum plate, or More than that.
- a gas groove for a gas medium may be formed in one or both of the heater member and the chuck member, and a through hole is also formed in the chuck member so as to be connected to the through hole of the heater member.
- the gas medium may exist at the interface between the workpiece and the chuck member.
- the work heating device when placed on the base substrate, it may be fixed using a bonding sheet or an adhesive.
- the heater member has a surface facing the base substrate and a heating element.
- a base adsorption electrode for adsorbing the base substrate is provided between them, or an adsorption sheet made of a resin material is provided on the surface facing the base substrate so that it can be detachably mounted on the base substrate. Is good.
- the base adsorption electrode when used, it can be formed using a known material or the like as in the case of the chuck adsorption electrode or the heater adsorption electrode described above, and it is preferable to provide a connection terminal. .
- the elastic modulus is 0.5 MPa or more and 10 MPa or less, preferably 2 MPa or more and 3 MPa or less, and the three-dimensional average surface roughness (SRa) is 0.01 ⁇ m or more and 0.55 ⁇ m or less
- an adsorption sheet made of a resin material having a thickness of 0.4 ⁇ m or more and 0.5 ⁇ m or less is used. It is presumed that intermolecular force (Van der Waals force) is related to one of the reasons that such an adsorbent sheet made of a resin material can be adsorbably attached to the base substrate.
- the present inventors have found that a resin material having the above elastic modulus and three-dimensional average surface roughness is effective for a base substrate generally made of a metal substrate such as an aluminum alloy. It was.
- the resin material include silicone resin, styrene butadiene rubber, chlorosulfonated polyethylene rubber, acrylonitrile butadiene rubber, ethylene propylene rubber, chloroprene rubber, butadiene rubber, fluoro rubber, isobutylene isoprene rubber, urethane rubber and the like. Of these, silicone resins are preferred.
- the chuck member and the heater member have a structure in which they are stacked by an electric adsorption force, even if a difference in thermal expansion occurs between the heater member and the chuck member, Generation of internal stress that causes warping or deformation of these members can be prevented. Therefore, it can be used reliably over a long period of time.
- the heater member is provided with a gas medium supplied from the base substrate side when the heater member is provided with a predetermined through hole and is mounted on the base substrate and used. Heat can be efficiently and uniformly transmitted to the workpiece, and the temperature of the workpiece can be precisely controlled.
- the work heating device of the present invention can be freely attached / detached between the chuck member and the heater member by ON / OFF of the voltage application separately from the attachment / detachment between the work and the chuck member.
- the workpiece processing can be performed without any inconvenience, and for example, even when the chuck member is consumed, the parts can be easily replaced, which is convenient for maintenance.
- FIG. 1 is a schematic cross-sectional view showing a state in use when the work heating apparatus of the first configuration example of the present invention is placed on a base substrate and used as a work processing apparatus.
- FIG. 2 is a schematic cross-sectional view showing a state where members are separated in the case where the work processing apparatus shown in FIG. 1 is maintained.
- FIG. 3 is a schematic cross-sectional view showing a state in use when the work heating apparatus of the second configuration example of the present invention is placed on a base substrate and used as a work processing apparatus.
- FIG. 4 is a schematic cross-sectional view showing a conventional laminated structure type work heating apparatus.
- First Embodiment 1 and 2 show a workpiece processing apparatus that can be applied to a plasma etching apparatus or the like that performs plasma etching on a semiconductor substrate using plasma.
- a work heating device 14 comprising a chuck member 1 and a heater member 5 is placed on a base base 15 made of aluminum alloy and provided with a pipe line 16 through which gas flows.
- the workpiece 18 such as a semiconductor substrate is attracted to the chuck member 14 and a predetermined process such as plasma etching is performed while maintaining the workpiece 18 at a temperature suitable for the plasma process.
- the chuck member 1 has a structure in which a workpiece attracting electrode 3 for attracting a workpiece is provided in the inside of the dielectric 2, and, for example, a circle having a thickness of about 0.1 to 5 mm according to the shape of the workpiece.
- Two plate-like alumina ceramic plates (for example, A-479 manufactured by Kyocera Corporation) are used, and a workpiece is adsorbed on one ceramic plate by depositing copper with a thickness of about 0.1 to 50 ⁇ m through a predetermined mask.
- the electrode 3 can be formed, and the other ceramic plate can be bonded together via an epoxy adhesive or the like.
- the first embodiment is an example in which a bipolar work adsorption electrode 3 is formed, and comb-like electrode portions 3a and 3b are alternately incorporated, and can be connected to an external power source having a switch. It has a terminal 4 and shows a state in which a DC voltage is applied between these electrode portions (3a, 3b).
- the heater member 5 includes a heating element 7 for heating the workpiece inside the dielectric body 6, and a chuck attracting electrode 8 that attracts the chuck member 1 between the surface facing the chuck member 1 and the heating element 7. And a base adsorption electrode 9 for adsorbing the base substrate 15 between the surface facing the base substrate 15 and the heating element 7.
- a base suction electrode 9 is formed on one side of a polyimide film having a thickness of about 25 to 125 ⁇ m in the same manner as the work suction electrode 3 in the chuck member 1, thereby An epoxy adhesive is applied to the electrode side, and a polyimide film having a thickness of about 25 to 125 ⁇ m (for example, Kapton H manufactured by Toray DuPont or Upilex manufactured by Ube Industries) is thermocompression bonded.
- a polyimide film having a thickness of about 25 to 125 ⁇ m for example, Kapton H manufactured by Toray DuPont or Upilex manufactured by Ube Industries
- a resistance heating element 7 having a thickness of about 5 to 30 ⁇ m is printed on the remaining surface of the polyimide film on which the base adsorption electrode 9 has been formed, using a conductive ink such as silver filler ink, and an epoxy adhesive is applied. Then, a polyimide film having a thickness of about 25 to 125 ⁇ m is thermocompression bonded. Further, a chuck suction electrode 8 is formed on the surface of the polyimide film in the same manner as in the case of the workpiece suction electrode 3, and a polyimide film having a thickness of about 25 to 125 ⁇ m is thermocompression bonded through an epoxy adhesive, Finally, it can be cut into a disk shape.
- the chuck suction electrode 8 and the base suction electrode 9 have connection terminals 11 and 12 similar to those of the workpiece suction electrode 3, respectively.
- the heating element 7 has a connection terminal 10 that can be connected to an external power source (not shown) by making the planar shape spiral, for example, in accordance with the shape of the workpiece. And in this 1st Embodiment, it has the gas hole 17 which leads to the pipe line 16 in the surface of the base board
- the heater member 5 is mounted on the base substrate 15 as shown in FIG. Then, a DC voltage of about 500 to 2000 V is applied to the base adsorption electrode 9 and adsorbed to the base substrate 15. Further, the chuck member 1 is placed on the heater member 5 and a DC voltage of about 500 to 2000 V is applied to the chuck suction electrode 8 so that the chuck member 1 is attracted to the heater member 5.
- a silicon substrate is placed with the surface of the chuck member 1 as a workpiece adsorption surface, and a DC voltage of about 500 to 2000 V is applied to the workpiece adsorption electrode 3 to adsorb the silicon substrate.
- the work processing chamber of the plasma etching apparatus is evacuated to about 10 ⁇ 1 Pa to 10 ⁇ 5 Pa, and the temperature of the silicon substrate is kept within a range of ⁇ 80 to 250 ° C. To be.
- the silicon substrate is heated by the heat generated by energizing the heating element 7, but the alumina ceramic plate forming the chuck member 1 and the polyimide film forming the heater member 5 themselves have a predetermined surface roughness. Therefore, the gas medium supplied from the base substrate 15 side is present at the interface between the chuck member 1 and the heater member 5. Therefore, the heat generated from the heater member 5 uniformly heats the entire surface of the silicon substrate through the chuck member 1 through this gas medium.
- the voltage application to the workpiece adsorption electrode 3 is stopped by switching off the external power source connected to the workpiece adsorption electrode 3 of the chuck member 1, the workpiece adsorbed on the chuck member 1 is removed. Can be released. Further, when maintenance is performed as necessary, as shown in FIG. 2, the application of voltage can be stopped by switching off the external power source connected to the chuck attracting electrode 8 of the heater member 5.
- the chuck member 1 and the heater member 5 can be easily separated, and if the voltage application is stopped by switching off the external power source connected to the base substrate electrode 9, the heater member 5 and The base board 15 can be easily separated.
- FIG. 3 shows a workpiece processing apparatus using a modification of the workpiece heating apparatus of the present invention.
- a workpiece consisting of a chuck member 1 and a heater member 5 is shown.
- the heating device 14 is mounted on the base substrate 15 made of aluminum alloy via an adsorption sheet 29 attached to the heater member side.
- the chuck member 1 has a structure in which a work suction electrode 22 for sucking a work and a heater suction electrode 23 for sucking the heater member 5 are provided inside the dielectric 21. And located between the surface facing the heater member and the workpiece attracting electrode 22.
- a work suction electrode 22 for sucking a work and a heater suction electrode 23 for sucking the heater member 5 are provided inside the dielectric 21. And located between the surface facing the heater member and the workpiece attracting electrode 22.
- an alumina ceramic plate in which copper is vapor-deposited on one side and the work adsorption electrode 22 is formed as in the first embodiment, and copper is vapor-deposited on one side and a heater is formed.
- An alumina ceramic plate on which the adsorption electrode 23 is formed is prepared, and an alumina ceramic plate is sandwiched between them, and each is bonded with an epoxy adhesive or the like.
- the shapes of the workpiece adsorption electrode 22 and the heater adsorption electrode 23 are the same as those in the first
- the heater member 5 can be obtained in the same manner as in the first embodiment except that only the heating element 27 for heating the workpiece is provided inside the dielectric body 26.
- a connection terminal 28 that can be connected to an external power source is provided.
- the heater member 5 has, for example, a silicone resin (trade name: Sirius; elastic modulus: 2.7 MPa, three-dimensional average surface roughness (SRa) of 0.46 ⁇ m) manufactured by Fuso Rubber Industrial Co., Ltd. on the surface facing the base substrate 15. Such an adsorption sheet 29 was stuck.
- this 2nd Embodiment has the gas hole 17 which leads to the pipe line 16 in the surface of the base board
- a through hole 30 is formed in the chuck member 1 so as to be connectable to the gas hole 17 of the base 15 and to connect to the through hole 31 through the front and back surfaces thereof.
- the work processing apparatus in the second embodiment can be used in a plasma etching apparatus or the like in the same manner as in the first embodiment. Further, when performing maintenance after use, if the voltage application is stopped by switching off the external power source connected to the heater adsorption electrode 23 of the chuck member 5, the chuck member 1 and the heater member 5 are not connected. Since the heater member 5 and the base substrate 15 are merely adsorbed by the adsorbing sheet 29, they can be easily peeled off by hand.
- the workpiece heating apparatus of the present invention can heat a workpiece to a predetermined temperature while adsorbing the workpiece.
- a workpiece processing apparatus for example, a semiconductor manufacturing apparatus such as a plasma etching apparatus, etc. Is suitable for processing a semiconductor substrate or a glass substrate.
- a workpiece heating device alone and heating it to a predetermined temperature.
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Abstract
Description
図1及び図2において、プラズマを用いて半導体基板をプラズマエッチングするプラズマエッチング装置等に適用できるようなワーク処理装置が示されている。このワーク処理装置では、チャック部材1とヒーター部材5とからなるワーク加熱装置14が、ガスを流す管路16を内部に備えたアルミニウム合金製のベース基盤15に載置されており、ワーク加熱装置14のチャック部材側に半導体基板等のワーク18を吸着して、例えばプラズマ処理に適した温度にワーク18を維持してプラズマエッチングするなど、所定の処理を行うことができる。
図3には、本発明のワーク加熱装置の変形例を用いたワーク処理装置が示されており、この第2の実施形態に係るワーク処理装置では、チャック部材1とヒーター部材5とからなるワーク加熱装置14が、ヒーター部材側に貼着された吸着シート29を介してアルミニウム合金製のベース基盤15に載置されている。
2,6,21,26:誘電体
3,22:ワーク吸着電極
3a,3b,8a,8b,9a,9b,22a,22b:電極部
4,10,11,12,24,25,28:接続端子
5:ヒーター部材
7,27:発熱体
8:チャック吸着電極
9:ベース吸着電極
13,30,31:貫通孔
14:ワーク加熱装置
15:ベース基盤
16:管路
17:ガス孔
18:ワーク
23:ヒーター吸着電極
29:吸着シート
31:均熱プレート
32:接着剤層
Claims (6)
- ワーク吸着用のワーク吸着電極を備えたチャック部材とワーク加熱用の発熱体を備えたヒーター部材とが積層されて、チャック部材側に吸着されたワークをヒーター部材によって加熱することができるワーク加熱装置であって、ヒーター部材が、チャック部材に対向する面と発熱体との間にチャック部材を吸着するチャック吸着電極を備えて、チャック部材とヒーター部材とが着脱可能に積層されたことを特徴とするワーク加熱装置。
- ワーク吸着用のワーク吸着電極を備えたチャック部材とワーク加熱用の発熱体を備えたヒーター部材とが積層されて、チャック部材側に吸着されたワークをヒーター部材によって加熱することができるワーク加熱装置であって、チャック部材が、ヒーター部材に対向する面とワーク吸着電極との間にヒーター部材を吸着するヒーター吸着電極を備えて、チャック部材とヒーター部材とが着脱可能に積層されたことを特徴とするワーク加熱装置。
- ガス媒体を流す管路を内部に備えてこの管路に接続したガス孔を表面に有するベース基盤に、ヒーター部材を対向させて載置して使用する請求項1又は2に記載のワーク加熱装置であって、ヒーター部材がベース基盤のガス孔に通ずる貫通孔を有して、ヒーター部材とチャック部材との界面にベース基盤側から供給されたガス媒体が存在するようにして積層されたことを特徴とするワーク加熱装置。
- ヒーター部材が、ベース基盤に対向する面と発熱体との間にベース基盤を吸着するベース吸着電極を備えるか、又は、ベース基盤に対向する面に樹脂材料からなる吸着シートを備えて、ベース基盤に対して着脱可能に載置される請求項3に記載のワーク加熱装置。
- 吸着シートは、弾性率が0.5MPa以上10MPa以下であると共に、三次元平均表面粗さ(SRa)が0.01μm以上0.55μm以下の樹脂材料からなる請求項4に記載のワーク加熱装置。
- 請求項1~5のいずれかに記載のワーク加熱装置をベース基盤上に載置してなることを特徴とするワーク処理装置。
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US10157758B2 (en) | 2018-12-18 |
US20130277357A1 (en) | 2013-10-24 |
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EP2660860B8 (en) | 2020-12-09 |
TWI567824B (zh) | 2017-01-21 |
KR101897012B1 (ko) | 2018-09-10 |
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