WO2010023878A1 - スパッタリング薄膜形成装置 - Google Patents
スパッタリング薄膜形成装置 Download PDFInfo
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- WO2010023878A1 WO2010023878A1 PCT/JP2009/004092 JP2009004092W WO2010023878A1 WO 2010023878 A1 WO2010023878 A1 WO 2010023878A1 JP 2009004092 W JP2009004092 W JP 2009004092W WO 2010023878 A1 WO2010023878 A1 WO 2010023878A1
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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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
- C23C14/354—Introduction of auxiliary energy into the plasma
- C23C14/358—Inductive energy
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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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/3407—Cathode assembly for sputtering apparatus, e.g. Target
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- 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
- H01J37/321—Radio frequency generated discharge the radio frequency energy being inductively coupled to the plasma
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- 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
- H01J37/321—Radio frequency generated discharge the radio frequency energy being inductively coupled to the plasma
- H01J37/3211—Antennas, e.g. particular shapes of coils
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- 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
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
- H01J37/3402—Gas-filled discharge tubes operating with cathodic sputtering using supplementary magnetic fields
- H01J37/3405—Magnetron sputtering
- H01J37/3408—Planar magnetron sputtering
-
- 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
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
- H01J37/3411—Constructional aspects of the reactor
-
- 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
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
- H01J37/3411—Constructional aspects of the reactor
- H01J37/3414—Targets
- H01J37/3417—Arrangements
Definitions
- the present invention relates to a sputtering thin film forming apparatus that forms a predetermined thin film on a substrate surface by sputtering a target with plasma.
- a parallel plate type sputtering thin film forming apparatus in which a metal sputtering target (cathode) and a substrate are disposed in a vacuum vessel so as to face each other is often used.
- an inert gas such as argon gas is introduced into a vacuum vessel, and a DC voltage or a high-frequency voltage is applied to the sputtering target to generate plasma in the vacuum vessel, and the target is sputtered by ions in the plasma. Then, a target thin film is formed on the surface of the substrate.
- Non-Patent Document 1 a magnetron sputtering apparatus
- a magnetron sputtering apparatus a cycloid motion of electrons generated by a magnetic field generated in parallel with the target surface by an electromagnet or a permanent magnet provided on the back surface of the target and an electric field generated by a DC voltage or a high frequency voltage applied to the target, or Using the trochoidal motion (hereinafter collectively referred to as “cycloidal trochoidal motion”), the plasma is localized in the vicinity of the target surface, and the target is made more efficient by increasing the plasma density of the target surface. Spatters well.
- the magnetron sputtering apparatus has features such as faster film formation speed, stronger film adhesion strength, and lower substrate temperature rise, which makes it easier to suppress damage to the substrate than when no magnetic field is used.
- Patent Document 1 in a magnetron sputtering apparatus, a plasma is formed using a high-frequency coil on a path until sputtered particles on which a target is sputtered reaches the surface of a substrate, so that sputtering that passes through the plasma is performed. It describes that a film is efficiently formed at a high speed by ionizing particles and attracting the particles to the substrate surface by the electric field.
- the deposition rate can be improved to some extent, but the ions collide with the target with high energy and recoil and enter the substrate side. Damage (plasma damage) also increases.
- the target surface reacts with oxygen and is covered with the oxide, so that the target surface is charged up and the electric field on the target surface is relaxed. Therefore, the plasma density is reduced. As a result, the film forming speed is remarkably reduced, and it is difficult to form an oxide thin film at a high speed with the conventional sputtering thin film forming apparatus.
- Patent Document 2 describes an inductively coupled sputtering apparatus in which two U-shaped high-frequency antennas are arranged in a vacuum chamber and a target is arranged around the U-shaped high-frequency antenna. According to this document, fine silicon dots (silicon nanoparticles) can be produced on a substrate using this inductively coupled sputtering apparatus (in the embodiment, the average particle diameter is 16 nm). In this apparatus, high-density plasma is formed in the vicinity of the high-frequency antenna by the inductively coupled plasma generated by the high-frequency antenna. However, Patent Document 2 does not aim at high-speed film formation.
- the inductively coupled sputtering apparatus described in Patent Document 1 can be used for the manufacture of minute objects such as silicon nanoparticles, but for example, a thin film having a thickness on the order of micrometers is compared. It is practically difficult to use for manufacturing a large object.
- Japanese Patent Laid-Open No. 10-289887 ([0006]-[0007], [0016]-[0017], FIG. 1) Japanese Unexamined Patent Publication No. 2007-080999 ([0104]-[0111], Fig. 6-7)
- the problem to be solved by the present invention is to provide a sputtering thin film forming apparatus capable of performing sputtering at a higher speed than before.
- a sputtering thin film forming apparatus which has been made to solve the above problems, a) a vacuum vessel; b) target holding means provided in the vacuum vessel; c) substrate holding means provided facing the target holding means; d) plasma generation gas introduction means for introducing a plasma generation gas into the vacuum vessel; e) an electric field generating means for generating a DC electric field or a high frequency electric field between the target holding means and the substrate holding means; f) Magnetic field generation means for generating a magnetic field having a component parallel to the surface of the sputtering target on the surface of the sputtering target held by the target holding means; g) high frequency inductively coupled plasma generating means for generating high frequency inductively coupled plasma in a region in the vicinity of the sputter target and having a magnetic field of a predetermined intensity or more generated by the magnetic field generating means; It is characterized by providing.
- plasma generated by ionizing molecules of the plasma generating gas by the electric field generating means and the magnetic field generating means is generated locally by the sputtering target surface as in the conventional magnetron sputtering apparatus.
- inductively coupled plasma in which the plasma generation gas is ionized is generated in the vicinity of the sputtering target by the high frequency inductively coupled plasma generating means.
- the sputtering thin film forming apparatus since the sputtering thin film forming apparatus according to the present invention performs sputtering at a high speed as described above, the target surface is not covered with oxide when the oxide thin film is formed. It can be removed by sputtering. Therefore, sputtering can be continuously performed in a state where the metal is exposed on the target surface (metal mode) for a long time. Even if the target surface is covered with an oxide, plasma can be generated by the high frequency inductively coupled plasma generating means without being affected by the surface oxide, and the sputtering can be continued.
- the intensity of the magnetic field in the region where the high-frequency inductively coupled plasma is generated by the high-frequency inductively coupled plasma generation means is not less than the intensity required for the cycloid-trochoidal motion of electrons (for example, 0.01 Tesla) To do. Further, in order to efficiently generate a cycloid trochoid motion, it is desirable to generate the magnetic field at an angle parallel to the sputter target surface or as close to parallel as possible.
- the high-frequency inductively coupled plasma generating means for example, a high-frequency antenna made of a U-shaped or arc-shaped linear conductor described in JP-A-2001-35697 can be suitably used.
- the high-frequency antenna is preferably arranged so that a conductor of the high-frequency antenna and a magnetic field having the predetermined strength or more generated by the magnetic field generating means intersect.
- the sputtering thin film forming apparatus can increase the plasma density near the surface of the target and thereby generate a large number of ions, sputtering can be performed at a higher speed.
- the top view which shows the example of the high frequency antenna used with the sputtering thin film forming apparatus which concerns on this invention.
- the graph which shows the result of having measured the relationship between DC voltage and ion current in 1st Example and a comparative example.
- the (a) longitudinal cross-sectional view and (b) top view of the sputtering thin film forming apparatus 20 which concern on 2nd Example of this invention.
- the top view of the sputtering thin film forming apparatus 30 which concerns on 3rd Example of this invention.
- FIG. 3 is a longitudinal sectional view showing an example in which a high frequency voltage is applied between a target holder 13 and a substrate holder 14.
- FIG. 1 shows (a) a longitudinal sectional view and (b) a plan view of a sputtering thin film forming apparatus 10 according to the first embodiment (however, a substrate holder 14 described later is shown only in (a), and (b) Omitted.)
- the sputtering thin film forming apparatus 10 includes a vacuum vessel 11 that can be evacuated by a vacuum pump (not shown), a plasma generation gas introduction means 19 that introduces a plasma generation gas into the vacuum vessel, and a vacuum vessel 11.
- the upper surface of the magnetron sputtering magnet 12 has the function of the target holder 13.
- a plate-like target T can be attached to the upper surface of the target holder 13, and a substrate S can be attached to the lower surface of the substrate holder 14.
- the sputtering thin film forming apparatus 10 is provided with a DC power source (electric field generating means) 15 for applying a DC voltage with the target holder 13 side being positive between the target holder 13 and the substrate holder 14.
- the substrate holder 14 is used for attaching a rectangular substrate S
- the target holder 13 is used for attaching a rectangular target T.
- These vacuum vessel 11, magnetron sputtering magnet 12, target holder 13 and substrate holder 14 are the same as those used in the conventional magnetron sputtering apparatus.
- a plurality of high frequency antennas (high frequency inductively coupled plasma generating means) 16 are provided on the side of the target holder 13.
- the position of the high-frequency antenna 16 is set in a region where the magnetic field formed by the magnetron sputtering magnet 12 (indicated by the symbol H in FIG. 1) is 0.02 T (Tesla) or more.
- T T
- four high-frequency antennas 16 are arranged along the long side of the target T, four for each side.
- a high frequency power supply 18 is connected to the high frequency antenna 16 via an impedance matching unit 17.
- As the high-frequency antenna 16 a linear conductor formed in a U shape is used as shown in FIG. Note that an arc-shaped high-frequency antenna shown in FIG.
- U-shaped or arc-shaped high-frequency antennas are coils with less than one turn, and their inductance is smaller than when the number of turns is one or more. Therefore, the voltage generated in the antenna when a predetermined high-frequency power is supplied. The plasma can be generated efficiently.
- the target T is attached to the target holder 13 and the substrate S is attached to the substrate holder 14.
- a gas plasma generating gas
- a magnetic field H is formed from the magnetron sputtering magnet 12 in the vicinity of the target T and including the linear conductor of the high-frequency antenna 16.
- a DC voltage is applied by the DC power source 15 between the target holder 13 and the substrate holder 14 as electrodes to form a DC electric field between the electrodes. Further, by applying high frequency power from the high frequency power supply 18 to the high frequency antenna 16, a high frequency electromagnetic field is formed around the high frequency antenna 16.
- plasma is generated in the vicinity of the target by the magnetic field and the DC electric field.
- inductively coupled plasma is formed by the high frequency antenna 16.
- the electrons respectively supplied from these plasmas perform a cycloid trochoid motion by the magnetic field and the direct current electric field, whereby the ionization of the molecules of the plasma generating gas is promoted and a large amount of cations are generated.
- these cations collide with the surface of the target T, sputtered particles fly out from the surface of the target T, and the sputtered particles fly in the space between the target T and the substrate S and adhere to the surface of the substrate S.
- the sputtered particles are deposited on the surface of the substrate S, whereby a thin film is generated.
- electrons and ions are supplied from both the plasma generated by the same apparatus as the conventional magnetron sputtering apparatus and the inductively coupled plasma generated by the high-frequency antenna 16.
- a high-density plasma can be generated on the surface of the target T, whereby the sputtering of the target T can be promoted and the deposition rate can be increased.
- the substrate holder 14 is provided within the range that is affected by the plasma generated by the high frequency antenna 16, the surface of the substrate S can be activated by the high frequency electromagnetic field. Thereby, the film quality can be improved, and a thin film can be formed on a substrate having low heat resistance by lowering the film formation temperature.
- Results of experiments using the sputtering thin film forming apparatus 10 of this example are shown.
- the relationship between the currents (ion currents) caused by the ions incident on the target was measured while changing the DC voltage applied between the target holder 13 and the substrate holder 14 while applying constant power to the high-frequency antenna 16.
- an experiment was performed to measure the relationship between the DC voltage and the ionic current without applying power to the high-frequency antenna 16 in the sputtering thin film forming apparatus 10.
- the experiment of this comparative example is equivalent to the case where a conventional DC magnetron sputtering apparatus is used.
- Detailed experimental conditions are as follows.
- the target T a rectangular copper plate having a long side of 375 mm and a short side of 120 mm was used.
- Argon gas was used as the plasma generation gas, and the pressure of the plasma generation gas in the vacuum vessel was 0.133 Pa (1 mTorr).
- a total of 2 kW of high-frequency power was input to the high-frequency antenna 16 (in the comparative example, no power was input to the high-frequency antenna).
- the sputtering thin film forming apparatus of this example is sputtered at a sputtering rate 1.5 to 2.0 times that of the comparative example. Can be said.
- FIG. 4 shows (a) a longitudinal sectional view and (b) a plan view of the sputtering thin film forming apparatus 20 of the second embodiment.
- a high frequency antenna 16A having the following shape is used instead of the U-shaped high frequency antenna 16 in the first embodiment.
- two straight legs (first conductors) 161 extend upward from the inner wall surface of the bottom of the vacuum vessel 11, and the plate of the target T is directed from the two legs 161 toward the target T side.
- a straight arm (second conductor) 162 extends substantially in parallel with each other, and the ends of the two arms 162 are connected to a straight third conductor 163.
- the high frequency antenna 16A is provided so as to protrude from the side of the target T to the vicinity of the surface of the target T by such a shape and arrangement. Therefore, a stronger high-frequency electromagnetic field can be formed near the surface of the target T than when the entire high-frequency antenna is disposed on the side of the target holder 13.
- the configuration other than the high-frequency antenna 16A is the same as that of the sputtering thin film forming apparatus 10 of the first embodiment.
- FIG. 5 shows a plan view of a sputtering thin film forming apparatus 30 according to the third embodiment.
- the vacuum vessel 11, the magnetron sputtering magnet 12, the target holder 13, and the substrate holder 14 are the same as those in the first and second embodiments.
- three high-frequency antennas 26 are arranged along the long side of the target T, three for each side.
- the high-frequency antenna 26 has a U-shape similar to that of the high-frequency antenna 16 of the first embodiment, but differs from the high-frequency antenna 16 of the first embodiment in that the length of the third conductor 263 is different for each high-frequency antenna. .
- the first high-frequency antenna 26A, the second high-frequency antenna 26B, and the third high-frequency antenna 26C arranged along the long side of the target T the first high-frequency antenna 26A and the third high-frequency antenna at both ends are arranged.
- the third conductor of 26C is shorter than the third conductor of the second high-frequency antenna 26B at the center. The reason will be described later.
- the vertical cross section of the sputtering thin film forming apparatus 30 of the present embodiment is the same as that of the first embodiment, the illustration is omitted.
- the density distribution of the plasma generated in the vacuum vessel 11 is controlled by adjusting the high frequency power input to the first to third high frequency antennas 26A to 26C for each antenna.
- the spatial density gradient is larger at a position near the end (wall) than at a position near the center of the vacuum vessel 11. Therefore, in the present embodiment, the lengths of the third conductors of the first high-frequency antenna 26A and the third high-frequency antenna 26C are set as described above so that the density near the end of the vacuum vessel 11 can be finely controlled. 2 Shorter than that of the high-frequency antenna 26B.
- the following experiment was conducted using the sputtering thin film forming apparatus 30 of this example.
- the density of plasma generated in the vacuum vessel 11 when using the sputtering thin film forming apparatus 30 was measured.
- the measurement conditions are as follows.
- a vacuum vessel 11 having a regular hexagonal horizontal cross section was used.
- the distance between opposite sides of the regular hexagon was 68 cm, and the length of the long side of the target T was 58 cm.
- the substrate S was fixed to the substrate holder 14 at a position 15 cm away from the target T.
- the length of the third conductor was 9.8 cm for the first high-frequency antenna 26A and the third high-frequency antenna 26C, and 14.7 cm for the second high-frequency antenna 26B.
- argon gas of 0.667 Pa (5 mTorr) is introduced into the vacuum vessel 11, a DC voltage of 300 V is applied between the target holder 13 and the substrate holder 14, and the first to third high-frequency antennas 26 A to 26 C are applied.
- High frequency power was supplied to In the present embodiment, the following four types of experiments were conducted for combinations of the high frequency power W a input to the first and third high frequency antennas 26A and 26C and the high frequency power W b input to the second high frequency antenna.
- FIG. 6 shows the measurement result of the plasma density distribution in the vicinity of the target T.
- the plasma density gradually increases toward both ends with the center of the target T being the maximum value on a line parallel to the long side of the target T. Indicates a decreasing distribution.
- the plasma density has a concave distribution near the center of the long side. Indicates.
- the plasma density is substantially uniform within a range of ⁇ 20 cm on a line parallel to the long side of the target T.
- plasma with high spatial uniformity can be obtained by adjusting the electric power supplied to each high-frequency antenna.
- sputtering is performed uniformly over a wide range of the surface of the target T, whereby the density of sputtered particles in the vacuum vessel is also highly spatially uniform.
- FIG. 8 shows a plan view of a sputtering thin film forming apparatus 40 according to the fourth embodiment.
- a substrate activation high frequency antenna (substrate activation high frequency electromagnetic field generating means) 36 is provided in the vicinity of the substrate holder 14 in the sputtering thin film forming apparatus 10 of the first embodiment.
- the substrate activating high frequency antenna 36 is formed of a U-shaped linear conductor, similarly to the high frequency antenna 16 which is a high frequency inductively coupled plasma generating means. Except for the use of the substrate activation high-frequency antenna 36, the configuration of the sputtering thin film forming apparatus 40 according to this embodiment is the same as that of the sputtering thin film forming apparatus 10 of the first embodiment.
- the surface of the target T is sputtered in the same manner as the sputtering thin film forming apparatus 10 of the first embodiment, and sputtered particles that have jumped out of this surface pass through the space between the target T and the substrate S. Fly and reach the surface of the substrate S.
- a high-frequency electromagnetic field is generated near the surface of the substrate S by the substrate activation high-frequency antenna 36, whereby the surface of the substrate S is activated and adhesion of sputtered particles to the surface of the substrate S is promoted.
- the present invention is not limited to Examples 1 to 4 described so far.
- the target holder 13 and the substrate holder 14 are used as electrodes, and a voltage is applied between them by the DC power supply 15, but an electrode may be provided separately.
- a high frequency power source 15A for applying a high frequency voltage between the target holder 13 and the substrate holder 14 may be used (FIG. 9).
- the high-frequency antenna can be provided not only on the long side of the rectangular target T but also on the vicinity of the short side.
- the target is not limited to a rectangular shape, and a square plate shape or a block shape may be used.
- the form of the high frequency antenna is not limited to those shown in the first and second embodiments.
- a U-shaped or semicircular high-frequency antenna provided so as to protrude from the ceiling of the vacuum vessel or the inner wall surface of the side wall can be used.
- the magnetron sputtering magnet 12 may be a permanent magnet instead of an electromagnet.
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Abstract
Description
a) 真空容器と、
b) 前記真空容器内に設けられたターゲット保持手段と、
c) 前記ターゲット保持手段に対向して設けられた基板保持手段と、
d) 前記真空容器内にプラズマ生成ガスを導入するプラズマ生成ガス導入手段と、
e) 前記ターゲット保持手段と前記基板保持手段の間に直流電界又は高周波電界を生成する電界生成手段と、
f) 前記ターゲット保持手段にて保持されたスパッタターゲットの表面に、該スパッタターゲット表面と平行な成分を持つ磁界を生成する磁界生成手段と、
g) 前記スパッタターゲットの近傍であって、前記磁界生成手段により生成される所定の強度以上の磁界が存在する領域に高周波誘導結合プラズマを生成する高周波誘導結合プラズマ生成手段と、
を備えることを特徴とする。
11…真空容器
12…マグネトロンスパッタリング用磁石
13…ターゲットホルダ
14…基板ホルダ
15…直流電源
15A…ターゲットホルダ13と基板ホルダ14の間に高周波電圧を印加する高周波電源
16、26…高周波アンテナ
161…高周波アンテナの脚(第1導体)
162…高周波アンテナの腕(第2導体)
163…第3導体
17…インピーダンス整合器
18…高周波電源
26A…第1高周波アンテナ
26B…第2高周波アンテナ
26C…第3高周波アンテナ
36…基板活性化用高周波アンテナ
S…基板
T…ターゲット
Claims (9)
- a) 真空容器と、
b) 前記真空容器内に設けられたターゲット保持手段と、
c) 前記ターゲット保持手段に対向して設けられた基板保持手段と、
d) 前記真空容器内にプラズマ生成ガスを導入するプラズマ生成ガス導入手段と、
e) 前記ターゲット保持手段と前記基板保持手段の間に直流電界又は高周波電界を生成する電界生成手段と、
f) 前記ターゲット保持手段にて保持されたスパッタターゲットの表面に、該スパッタターゲット表面と平行な成分を持つ磁界を生成する磁界生成手段と、
g) 前記スパッタターゲットの近傍であって、前記磁界生成手段により生成される所定の強度以上の磁界が存在する領域に高周波誘導結合プラズマを生成する高周波誘導結合プラズマ生成手段と、
を備えることを特徴とするスパッタリング薄膜形成装置。 - 前記高周波誘導結合プラズマ生成手段が高周波アンテナであることを特徴とする請求項1に記載のスパッタリング薄膜形成装置。
- 前記高周波アンテナが前記所定強度以上の磁界が存在する領域内に配置されていることを特徴とする請求項2に記載のスパッタリング薄膜形成装置。
- 前記高周波アンテナが、巻数が1周未満の線状導体であることを特徴とする請求項2又は3に記載のスパッタリング薄膜形成装置。
- 前記高周波アンテナがU字形又は円弧状であることを特徴とする請求項4に記載のスパッタリング薄膜形成装置。
- 前記高周波誘導結合プラズマ生成手段が複数個配置されていることを特徴とする請求項1~5のいずれかに記載のスパッタリング薄膜形成装置。
- 複数の前記高周波誘導結合プラズマ生成手段により生成される高周波電磁界の強度が高周波誘導結合プラズマ生成手段毎に異なる値に設定可能であることを特徴とする請求項6に記載のスパッタリング薄膜形成装置。
- 前記磁界生成手段が前記ターゲット保持手段に保持されるターゲットの背面に配置されていることを特徴とする請求項1~7のいずれかに記載のスパッタリング薄膜形成装置。
- 前記基板保持手段の近傍に高周波電磁界を生成する基板活性化用高周波電磁界生成手段を該基板保持手段近傍に備えることを特徴とする請求項1~8のいずれかに記載のスパッタリング薄膜形成装置。
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US13/059,318 US8916034B2 (en) | 2008-08-28 | 2009-08-25 | Thin-film forming sputtering system |
KR1020167017826A KR20160087391A (ko) | 2008-08-28 | 2009-08-25 | 스퍼터링 박막형성장치 |
CN200980133584.7A CN102144044B (zh) | 2008-08-28 | 2009-08-25 | 溅镀薄膜形成装置 |
EP09809534.2A EP2345750B1 (en) | 2008-08-28 | 2009-08-25 | Thin film-forming sputtering systems |
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JP2014141698A (ja) * | 2013-01-23 | 2014-08-07 | Dainippon Screen Mfg Co Ltd | 酸化アルミニウムの成膜方法 |
JP2014189827A (ja) * | 2013-03-27 | 2014-10-06 | Dainippon Screen Mfg Co Ltd | 酸化アルミニウムの成膜方法 |
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JP2019052345A (ja) * | 2017-09-14 | 2019-04-04 | 株式会社Screenホールディングス | 成膜方法および成膜装置 |
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EP2345750A1 (en) | 2011-07-20 |
JP5702143B2 (ja) | 2015-04-15 |
EP2345750A4 (en) | 2013-11-27 |
KR20110065480A (ko) | 2011-06-15 |
TW201016873A (en) | 2010-05-01 |
US8916034B2 (en) | 2014-12-23 |
CN102144044A (zh) | 2011-08-03 |
KR20160087391A (ko) | 2016-07-21 |
EP2345750B1 (en) | 2019-01-02 |
CN102144044B (zh) | 2015-11-25 |
US20110203922A1 (en) | 2011-08-25 |
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JPWO2010023878A1 (ja) | 2012-01-26 |
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