JP2021048161A - Substrate holder and film depositing apparatus - Google Patents

Substrate holder and film depositing apparatus Download PDF

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JP2021048161A
JP2021048161A JP2019168199A JP2019168199A JP2021048161A JP 2021048161 A JP2021048161 A JP 2021048161A JP 2019168199 A JP2019168199 A JP 2019168199A JP 2019168199 A JP2019168199 A JP 2019168199A JP 2021048161 A JP2021048161 A JP 2021048161A
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substrate
holder
film
substrate holder
hole portion
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和典 宮川
Kazunori Miyakawa
和典 宮川
圭忠 峰尾
Keitada Mineo
圭忠 峰尾
成亨 為村
Shigeaki Tamemura
成亨 為村
悠葵 本田
Yuki Honda
悠葵 本田
渡部 俊久
Toshihisa Watabe
俊久 渡部
難波 正和
Masakazu Nanba
正和 難波
大竹 浩
Hiroshi Otake
浩 大竹
節 久保田
Setsu Kubota
節 久保田
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Japan Broadcasting Corp
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Nippon Hoso Kyokai NHK
Japan Broadcasting Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/541CuInSe2 material PV cells
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Physical Vapour Deposition (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Photovoltaic Devices (AREA)

Abstract

To provide a substrate holder, and a film depositing apparatus comprising the substrate holder, capable of manufacturing a film such as a photoelectric conversion film having a superior in-plane uniformity.SOLUTION: A substrate holder for a film depositing apparatus which substrate holder heats a substrate to form a film on a surface of the substrate comprises: a flat plate-like holder body that has a through hole part in which the substrates are accommodated and arranged; and covers each of which has a fixed part that is fixed and arranged in an outer periphery of the through hole part and a lid part which projects so as to cover at least a portion of a surface of an outer peripheral part of each substrate being accommodated and arranged in the through hole part. And in the substrate holder, the through hole part has support parts that support the substrates from a bottom surface side of the outer peripheral part of the substrate by projecting from an internal wall surface, and the cover does not contact with the substrates which are accommodated and arranged in the through hole part.SELECTED DRAWING: Figure 2

Description

本発明は、基板ホルダ及び該基板ホルダを備える成膜装置に関する。 The present invention relates to a substrate holder and a film forming apparatus including the substrate holder.

従来、太陽電池の光吸収層として、銅・インジウム・ガリウム・セレンを主原料とする化合物半導体(以下、「CIGS」という)が用いられており、CIGS膜を用いた発電システムが実用化されている。 Conventionally, a compound semiconductor (hereinafter referred to as "CIGS") containing copper, indium, gallium, and selenium as main raw materials has been used as a light absorption layer of a solar cell, and a power generation system using a CIGS film has been put into practical use. There is.

更に、CIGS膜は撮像素子の光電変換部としても実用化されている。特に、高い光吸収特性と、約1.0×107V/mの比較的低い電界を印加することにより膜内でアバランシェ増倍現象を生じる特性を持っているため、極めて高い感度が得られる可能性を秘めている。そこで、CIGS膜を光電変換膜(光を電気信号に変換する膜)として固体撮像素子上に積層した積層型固体撮像素子が実現できれば、4K、8K等の高精細テレビ方式用の撮像デバイスの高感度化に活かすことができる。 Further, the CIGS film has been put into practical use as a photoelectric conversion unit of an image sensor. In particular, because it has a high light absorption properties, the properties resulting in the avalanche multiplication phenomenon within the membrane by applying a relatively low electric field of about 1.0 × 10 7 V / m, very high sensitivity can be obtained It has potential. Therefore, if a laminated solid-state image sensor in which a CIGS film is laminated on a solid-state image sensor as a photoelectric conversion film (a film that converts light into an electric signal) can be realized, the height of an image sensor for high-definition television systems such as 4K and 8K will be high. It can be used for sensitivity.

ここで、CIGS膜のような高融点金属からなる化合物半導体膜は、真空中にて、300〜600℃程度まで基板を加熱し、加熱した基板上に各材料の蒸着を施して化合物化させることで作製される(例えば、特許文献1及び2参照)。 Here, in a compound semiconductor film made of a refractory metal such as a CIGS film, a substrate is heated to about 300 to 600 ° C. in a vacuum, and each material is vapor-deposited on the heated substrate to be compounded. (See, for example, Patent Documents 1 and 2).

特開2002−064108号公報JP-A-2002-064108 特開2012−012662号公報Japanese Unexamined Patent Publication No. 2012-012662

ところで、光電変換膜の特性ムラは、CIGSを代表とする膜を構成する化合物半導体の結晶状態、組成比率及び膜厚等の物性ムラに起因し、撮像素子の性能に大きな影響を及ぼす。そのため、上述のような積層型固体撮像素子を得るためには、特性にムラがなく面内均一性に優れた光電変換膜が求められる。 By the way, the characteristic unevenness of the photoelectric conversion film is caused by the physical characteristic unevenness such as the crystal state, composition ratio and film thickness of the compound semiconductor constituting the film represented by CIGS, and has a great influence on the performance of the image sensor. Therefore, in order to obtain the above-mentioned laminated solid-state image sensor, a photoelectric conversion film having no unevenness in characteristics and excellent in-plane uniformity is required.

ここで、上述の光電変換膜等の製造に用いられる成膜装置では、基板ホルダで基板を保持した状態で、真空槽内にてヒータの輻射熱等によって、当該基板の加熱処理をした状態で、蒸着又はスパッタ等の成膜処理を実行する。成膜処理に際しては、基板を回転する場合等もあるため、振動や衝撃による基板の落下等を防止する目的で、基板ホルダに基板を固定する必要がある。 Here, in the film forming apparatus used for manufacturing the above-mentioned photoelectric conversion film or the like, the substrate is held by the substrate holder and heat-treated by the radiant heat of the heater in the vacuum chamber. A film forming process such as vapor deposition or sputtering is performed. Since the substrate may be rotated during the film forming process, it is necessary to fix the substrate to the substrate holder in order to prevent the substrate from falling due to vibration or impact.

特に、成膜装置の中でもロードロックシステムを使用した装置は、基板ホルダに基板を載置した状態で、まずはこれを投入室と呼ばれる真空容器内に挿入する。挿入後、一定の真空度に到達するまで排気処理が実行された後、基板が載置された基板ホルダは、高真空(1×10−5Pa程度)に保たれた成膜室に搬送される。そのため、基板が載置された基板ホルダは、投入室及び、成膜室の間の搬送時の振動等によって生じる、基板の落下等を防止する目的で、基板ホルダに基板を十分に固定する必要がある。 In particular, among the film forming devices, the device using the load lock system first inserts the substrate into a vacuum container called a charging chamber with the substrate placed on the substrate holder. After insertion, the exhaust treatment is executed until a certain degree of vacuum is reached, and then the substrate holder on which the substrate is placed is transported to a film forming chamber maintained in a high vacuum (about 1 × 10-5 Pa). To. Therefore, the substrate holder on which the substrate is placed needs to be sufficiently fixed to the substrate holder for the purpose of preventing the substrate from falling due to vibration during transportation between the charging chamber and the film forming chamber. There is.

図4は、従来の基板ホルダ30の平面図である。図4に示すように、従来の基板ホルダ30では、平面視円形で平板状のホルダ本体2に、基板1を収容可能な貫通穴部5が形成されており、基板1は、この貫通穴部5に収容配置される。また、貫通穴部5に収容配置された基板1の外周部11の表面に基板固定用ワッシャ6が直接接触することで、基板1はホルダ本体2に固定される。そして、この状態で、基板1に対して加熱処理、蒸着又はスパッタ等の成膜処理が実行される。 FIG. 4 is a plan view of the conventional substrate holder 30. As shown in FIG. 4, in the conventional substrate holder 30, a through hole portion 5 capable of accommodating the substrate 1 is formed in the flat plate-shaped holder main body 2 which is circular in a plan view, and the substrate 1 has the through hole portion. It is housed and arranged in 5. Further, the substrate 1 is fixed to the holder body 2 by the substrate fixing washer 6 coming into direct contact with the surface of the outer peripheral portion 11 of the substrate 1 housed and arranged in the through hole portion 5. Then, in this state, a film forming process such as heat treatment, vapor deposition, or sputtering is executed on the substrate 1.

しかしながら、基板固定用ワッシャ6によって基板1を固定した状態で、加熱処理、蒸着又はスパッタ等の成膜処理を実行すると、基板1と基板固定用ワッシャ6との接触部分から、熱が著しく逃げてしまっていた。その結果、基板1上に作製される膜には、面内特性にムラが生じ、面内均一性に優れた膜が得られなかった。 However, when the substrate 1 is fixed by the substrate fixing washer 6 and a film forming process such as heat treatment, vapor deposition, or sputtering is performed, heat is remarkably released from the contact portion between the substrate 1 and the substrate fixing washer 6. It was closed. As a result, the film formed on the substrate 1 had uneven in-plane characteristics, and a film having excellent in-plane uniformity could not be obtained.

本発明は、上記に鑑みてなされたものであり、その目的は、面内均一性に優れた光電変換膜等の膜の作製が可能な基板ホルダ及び該基板ホルダを備える成膜装置を提供することにある。 The present invention has been made in view of the above, and an object of the present invention is to provide a substrate holder capable of producing a film such as a photoelectric conversion film having excellent in-plane uniformity, and a film forming apparatus including the substrate holder. There is.

(1) 上記目的を達成するため、本発明は、基板(例えば、後述の基板1)を加熱して前記基板の表面に膜を形成する成膜装置用の基板ホルダ(例えば、後述の基板ホルダ10,20)であって、前記基板が収容配置される貫通穴部(例えば、後述の貫通穴部5)を有する平板状のホルダ本体(例えば、後述のホルダ本体2)と、前記貫通穴部の外周に固定配置された固定部(例えば、後述の固定部31)と、前記貫通穴部に収容配置された前記基板の外周部(例えば、後述の外周部11)の表面の少なくとも一部を覆うように突出する蓋部(例えば、後述の蓋部32)と、を有するカバー(例えば、後述のカバー3)と、を備え、前記貫通穴部は、内壁面から突出して前記基板の外周部の裏面側から前記基板を支持する支持部(例えば、後述の支持部51)を有し、前記カバーは、前記貫通穴部に収容配置された前記基板に接触しない、基板ホルダを提供する。 (1) In order to achieve the above object, the present invention has a substrate holder for a film forming apparatus (for example, a substrate holder described later) that heats a substrate (for example, substrate 1 described later) to form a film on the surface of the substrate. 10, 20), a flat plate-shaped holder main body (for example, a holder main body 2 described later) having a through hole portion (for example, a through hole portion 5 described later) in which the substrate is housed, and the through hole portion. At least a part of the surface of the fixed portion (for example, the fixing portion 31 described later) fixedly arranged on the outer periphery of the substrate and the outer peripheral portion (for example, the outer peripheral portion 11 described later) of the substrate housed and arranged in the through hole portion. A cover portion (for example, a lid portion 32 described later) and a cover having a cover portion (for example, a cover portion 3 described later) are provided so as to cover the through hole portion, and the through hole portion protrudes from the inner wall surface and is an outer peripheral portion of the substrate. Provides a substrate holder that has a support portion (for example, a support portion 51 described later) that supports the substrate from the back surface side of the substrate, and the cover does not come into contact with the substrate that is housed and arranged in the through hole portion.

(2) (1)の基板ホルダにおいて、前記基板の厚みDsubと、前記貫通穴部の前記支持部までの深さD1とが、下記式(1)の関係にあるとき、前記ホルダ本体の表面から前記蓋部までの距離D2は、前記基板の厚みDsub、前記貫通穴部の前記支持部までの深さD1及び前記基板の表面から前記蓋部までの距離D3を用いて、下記式(2)により表されてもよい。
[数1]
Dsub>D1 ・・・式(1)
D2=Dsub−D1+D3 ・・・式(2)
(2) In the substrate holder of (1), when the thickness Dsub of the substrate and the depth D1 of the through hole portion to the support portion have the relationship of the following formula (1), the surface of the holder body. The distance D2 from the substrate to the lid is calculated by the following equation (2) using the thickness Dsub of the substrate, the depth D1 of the through hole to the support, and the distance D3 from the surface of the substrate to the lid. ) May be represented.
[Number 1]
Dsub> D1 ・ ・ ・ Equation (1)
D2 = Dsub-D1 + D3 ... Equation (2)

(3) (1)の基板ホルダにおいて、前記基板の厚みDsubと、前記貫通穴部の前記支持部までの深さD1とが、下記式(3)の関係にあるとき、前記ホルダ本体の表面から前記蓋部までの距離D2は、前記基板の厚みDsub、前記貫通穴部の前記支持部までの深さD1及び前記基板の表面から前記蓋部までの距離D3を用いて、下記式(4)により表されてもよい。
[数2]
Dsub≦D1 ・・・式(3)
D2=D1−Dsub−D3 ・・・式(4)
(3) In the substrate holder of (1), when the thickness Dsub of the substrate and the depth D1 of the through hole portion to the support portion have the relationship of the following formula (3), the surface of the holder body. The distance D2 from the substrate to the lid is calculated by the following equation (4) using the thickness Dsub of the substrate, the depth D1 of the through hole to the support, and the distance D3 from the surface of the substrate to the lid. ) May be represented.
[Number 2]
Dsub ≤ D1 ... Equation (3)
D2 = D1-Dsub-D3 ... Equation (4)

(4) (1)〜(3)いずれかの基板ホルダにおいて、前記膜は、光電変換膜であってもよい。 (4) In any of the substrate holders (1) to (3), the film may be a photoelectric conversion film.

(5) (1)〜(4)いずれかの基板ホルダにおいて、前記膜は、CIGS膜であってもよい。 (5) In any of the substrate holders (1) to (4), the film may be a CIGS film.

(6) また、本発明は、(1)〜(5)いずれかの基板ホルダを備える成膜装置を提供する。 (6) Further, the present invention provides a film forming apparatus including the substrate holder according to any one of (1) to (5).

本発明によれば、面内均一性に優れた光電変換膜等の膜の作製が可能な基板ホルダ及び該基板ホルダを備える成膜装置を提供できる。 According to the present invention, it is possible to provide a substrate holder capable of producing a film such as a photoelectric conversion film having excellent in-plane uniformity, and a film forming apparatus including the substrate holder.

第1実施形態に係る基板ホルダの平面図である。It is a top view of the substrate holder which concerns on 1st Embodiment. 図1のA−A線断面図である。It is sectional drawing of the line AA of FIG. 第2実施形態に係る基板ホルダの断面図である。It is sectional drawing of the substrate holder which concerns on 2nd Embodiment. 従来の基板ホルダの平面図である。It is a top view of the conventional board holder. 実施例1に係る基板ホルダを用いて得られた光電変換膜を示す平面写真である。It is a plane photograph which shows the photoelectric conversion film obtained by using the substrate holder which concerns on Example 1. FIG. 比較例1に係る基板ホルダを用いて得られた光電変換膜を示す平面写真である。It is a plane photograph which shows the photoelectric conversion film obtained by using the substrate holder which concerns on Comparative Example 1. 電流−電圧特性を測定するための積層体の断面図である。It is sectional drawing of the laminated body for measuring a current-voltage characteristic. 実施例1に係る基板ホルダを用いて得られた光電変換膜の電流−電圧特性を示す図である。It is a figure which shows the current-voltage characteristic of the photoelectric conversion film obtained by using the substrate holder which concerns on Example 1. FIG. 比較例1に係る基板ホルダを用いて得られた光電変換膜の電流−電圧特性を示す図である。It is a figure which shows the current-voltage characteristic of the photoelectric conversion film obtained by using the substrate holder which concerns on Comparative Example 1. FIG.

以下、本発明の実施形態について、図面を参照して説明する。なお、第2実施形態の説明において、第1実施形態と共通する構成については同一符号を付し、その説明を省略する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the second embodiment, the same reference numerals are given to the configurations common to those of the first embodiment, and the description thereof will be omitted.

<第1実施形態>
図1は、第1実施形態に係る基板ホルダ10の平面図である。図2は、図1のA−A線断面図である。本実施形態に係る基板ホルダ10は、基板1を加熱して基板1の表面に膜を形成する成膜装置用の基板ホルダである。
<First Embodiment>
FIG. 1 is a plan view of the substrate holder 10 according to the first embodiment. FIG. 2 is a cross-sectional view taken along the line AA of FIG. The substrate holder 10 according to the present embodiment is a substrate holder for a film forming apparatus that heats the substrate 1 to form a film on the surface of the substrate 1.

図1に示されるように、基板ホルダ10は、ホルダ本体2と、カバー3と、固定部材4と、を備える。 As shown in FIG. 1, the substrate holder 10 includes a holder main body 2, a cover 3, and a fixing member 4.

ホルダ本体2は、基板1を保持するものである。ホルダ本体2は、平面視円形の平板状、すなわち円柱状の部材で構成される。ただし、形状は円柱状に限定されず、平面視矩形等の平板状でもよい。 The holder body 2 holds the substrate 1. The holder body 2 is composed of a flat plate-like member having a circular shape in a plan view, that is, a columnar member. However, the shape is not limited to a columnar shape, and may be a flat plate shape such as a rectangular shape in a plan view.

ホルダ本体2は、金属部材で構成される。例えば、モリブデン、ステンレス(SUS301、SUS302、SUS303、SUS304又はSUS400番台)等が用いられる。 The holder body 2 is made of a metal member. For example, molybdenum, stainless steel (SUS301, SUS302, SUS303, SUS304 or SUS400 series) and the like are used.

ホルダ本体2は、基板1が収容配置される貫通穴部5を有する。図1に示されるように、例えば本実施形態のホルダ本体2は、三つの貫通穴部5を有し、三つの基板1を収容可能である。 The holder body 2 has a through hole portion 5 in which the substrate 1 is housed and arranged. As shown in FIG. 1, for example, the holder main body 2 of the present embodiment has three through-hole portions 5 and can accommodate three substrates 1.

貫通穴部5の形状は、図1に示すように、例えば平面視矩形状である。ただし、貫通穴部5の形状は矩形状に限定されず、収容配置される基板1の形状に応じて適宜設定される。貫通穴部5の大きさは、収容配置される基板1の外形より若干大きく設定される。これにより、貫通穴部5に収容配置された基板1と貫通穴部5の内壁面との間には、若干のクリアランスが確保される。 As shown in FIG. 1, the shape of the through hole portion 5 is, for example, a rectangular shape in a plan view. However, the shape of the through hole portion 5 is not limited to a rectangular shape, and is appropriately set according to the shape of the substrate 1 to be accommodated and arranged. The size of the through hole portion 5 is set to be slightly larger than the outer shape of the substrate 1 to be accommodated and arranged. As a result, a slight clearance is secured between the substrate 1 housed and arranged in the through hole portion 5 and the inner wall surface of the through hole portion 5.

図2に示されるように、貫通穴部5は、貫通穴部5の内壁面から突出して基板1の外周部11の裏面側から基板1を支持する支持部51を有する。この支持部51により、貫通穴部5内に挿入された基板1の支持が可能となり、基板1を貫通穴部5内に収容配置可能となっている。 As shown in FIG. 2, the through hole portion 5 has a support portion 51 that projects from the inner wall surface of the through hole portion 5 and supports the substrate 1 from the back surface side of the outer peripheral portion 11 of the substrate 1. The support portion 51 makes it possible to support the substrate 1 inserted in the through hole portion 5, and the substrate 1 can be accommodated and arranged in the through hole portion 5.

支持部51は、矩形状の貫通穴部5の四周に連続して配置される。ただし、これに限定されず、支持部51は、貫通穴部5の四周のうちの互いに対向する二つの周に一対形成されてもよく、あるいは貫通穴部5の四周に間欠的に複数配置されてもよい。 The support portion 51 is continuously arranged around the four circumferences of the rectangular through hole portion 5. However, the present invention is not limited to this, and a pair of support portions 51 may be formed on two circumferences of the through hole portion 5 facing each other, or a plurality of support portions 51 may be intermittently arranged on the four circumferences of the through hole portion 5. You may.

本実施形態では、支持部51は、貫通穴部5を構成する、内寸が大きい第1穴部52と、該第1穴部52よりも内寸が小さい第2穴部53と、の境界の段差により形成される。第1穴部52は、基板1の挿入側、すなわちカバー3が配置されてヒータが配置される側(上側)に形成される。第2穴部53は、基板1の挿入側とは反対側、すなわち図2に示されるように蒸着源(あるいはスパッタ源)が配置される側(下側)に形成される。 In the present embodiment, the support portion 51 is a boundary between a first hole portion 52 having a large inner dimension and a second hole portion 53 having an inner dimension smaller than that of the first hole portion 52, which constitutes the through hole portion 5. It is formed by the steps of. The first hole portion 52 is formed on the insertion side of the substrate 1, that is, on the side (upper side) where the cover 3 is arranged and the heater is arranged. The second hole 53 is formed on the side opposite to the insertion side of the substrate 1, that is, on the side (lower side) where the vapor deposition source (or sputtering source) is arranged as shown in FIG.

支持部51としては、上述の構成以外にも、例えば貫通穴部5の内壁面から突出する突起によって形成されてもよい。かかる突起は、内周全体に亘って連続して設けられてもよく、周方向に間欠的に複数設けられてもよい。 The support portion 51 may be formed by, for example, a protrusion protruding from the inner wall surface of the through hole portion 5, in addition to the above-described configuration. Such protrusions may be provided continuously over the entire inner circumference, or may be provided intermittently in the circumferential direction.

本実施形態のカバー3は、貫通穴部5に収容配置された基板1に接触しないことを特徴とする。すなわち、従来の基板ホルダのように、ホルダ本体に収容配置された基板の表面に基板固定用ワッシャ等が直接接触することがないように構成されている。 The cover 3 of the present embodiment is characterized in that it does not come into contact with the substrate 1 housed and arranged in the through hole portion 5. That is, unlike the conventional board holder, the board fixing washer or the like does not come into direct contact with the surface of the board housed and arranged in the holder body.

カバー3は、例えば金属部材で構成される。具体的には、ホルダ本体2と同様の材料で構成される。 The cover 3 is made of, for example, a metal member. Specifically, it is made of the same material as the holder body 2.

図1に示されるように、本実施形態のカバー3は、ホルダ本体2に形成された三つの貫通穴部5にそれぞれ収容配置される基板1の、互いに対向する一対の外周部11に沿って、一対、対向配置される。ただし、これに限定されず、カバー3は、各基板1の四周の外周部11に沿って四周に四つ配置されてもよい。 As shown in FIG. 1, the cover 3 of the present embodiment is provided along a pair of outer peripheral portions 11 of the substrate 1 which are housed and arranged in the three through-hole portions 5 formed in the holder main body 2 and which face each other. , Pair, facing each other. However, the present invention is not limited to this, and four covers 3 may be arranged on the four circumferences along the outer peripheral portion 11 on the four circumferences of each substrate 1.

カバー3は、固定部31と、蓋部32と、を有する。より詳しくは、本実施形態の一対のカバー3は、それぞれ2つの固定部31と、これら二つの固定部31を連結する一つの蓋部32と、を有する。すなわち、蓋部32は、三つの基板1の外周部11に跨って連続して延設される。 The cover 3 has a fixing portion 31 and a lid portion 32. More specifically, each of the pair of covers 3 of the present embodiment has two fixing portions 31 and one lid portion 32 connecting these two fixing portions 31. That is, the lid portion 32 is continuously extended over the outer peripheral portions 11 of the three substrates 1.

固定部31は、貫通穴部5の外周に固定配置される。図1及び図2に示されるように、固定部31は、平板状であり、後述する固定部材4により、ホルダ本体2上に固定される。 The fixing portion 31 is fixedly arranged on the outer periphery of the through hole portion 5. As shown in FIGS. 1 and 2, the fixing portion 31 has a flat plate shape and is fixed on the holder main body 2 by a fixing member 4 described later.

図2に示されるように、蓋部32は、起立部321と、突出部322と、を有する。
起立部321は、上述の固定部31の端部から起立し、ホルダ本体2の表面に対して垂直に上側に延設される。突出部322は、起立部321の先端から、貫通穴部5に収容配置された基板1の外周部11の表面の少なくとも一部を覆うように、基板1の表面に沿って突出して設けられる。
As shown in FIG. 2, the lid portion 32 has an upright portion 321 and a protruding portion 322.
The upright portion 321 stands up from the end of the above-mentioned fixed portion 31 and extends vertically upward with respect to the surface of the holder body 2. The protruding portion 322 is provided so as to project from the tip of the standing portion 321 along the surface of the substrate 1 so as to cover at least a part of the surface of the outer peripheral portion 11 of the substrate 1 housed and arranged in the through hole portion 5.

上述の突出部322により、貫通穴部5内に収容配置された基板1の飛び出しが防止される。すなわち、基板ホルダ10に振動等の外力が加わった場合であっても、カバー3の蓋部32を構成する突出部322によって、基板1の基板ホルダ10からの脱落が回避される。 The protrusion 322 prevents the substrate 1 housed and arranged in the through hole 5 from popping out. That is, even when an external force such as vibration is applied to the substrate holder 10, the protruding portion 322 constituting the lid portion 32 of the cover 3 prevents the substrate 1 from falling off from the substrate holder 10.

上述の通り、カバー3は、貫通穴部5に収容配置された基板1に接触しない。すなわち、カバー3の突出部322と、貫通穴部5に収容配置された基板1の表面との間には、隙間が確保されている。これについては、後段で詳述する。 As described above, the cover 3 does not come into contact with the substrate 1 housed and arranged in the through hole portion 5. That is, a gap is secured between the protruding portion 322 of the cover 3 and the surface of the substrate 1 housed and arranged in the through hole portion 5. This will be described in detail later.

固定部材4は、カバー3の固定部31を、ホルダ本体2に固定するための固定部材である。固定部材4は、例えば固定ネジで構成される。固定部材4は、上述の固定部31に対応して配置される。 The fixing member 4 is a fixing member for fixing the fixing portion 31 of the cover 3 to the holder main body 2. The fixing member 4 is composed of, for example, a fixing screw. The fixing member 4 is arranged corresponding to the above-mentioned fixing portion 31.

基板1は、平面視矩形状の四角柱状である。ただし、これに限定されず、貫通穴部5の形状に応じて適宜設定される。また、基板1の表面に形成される膜としては、例えば、シリコン、ゲルマニウム、ヒ化ガリウム(GaAs)、ガリウム砒素リン、AlGaAs、InGaAlP、InGaN、ZnO、InP、炭化珪素(SiC)、窒化ガリウム(GaN)、窒化アルミニウム、窒化インジウム、CIGS等の膜が挙げられる。中でも、撮像素子に適用できることから、光電変換機能を有する光電変換膜が好ましく、膜内でアバランシェ増倍現象を生じることから、CIGSが特に好ましい。 The substrate 1 is a rectangular columnar shape having a rectangular shape in a plan view. However, the present invention is not limited to this, and is appropriately set according to the shape of the through hole portion 5. Examples of the film formed on the surface of the substrate 1 include silicon, germanium, gallium arsenide (GaAs), gallium arsenide phosphorus, AlGaAs, InGaAlP, InGaN, ZnO, InP, silicon carbide (SiC), and gallium nitride (SiC). Examples thereof include films of GaN), aluminum nitride, indium nitride, and CIGS. Among them, a photoelectric conversion film having a photoelectric conversion function is preferable because it can be applied to an imaging element, and CIGS is particularly preferable because an avalanche multiplication phenomenon occurs in the film.

次に、本実施形態に係る基板ホルダ10の特徴について詳述する。
本実施形態に係る基板ホルダ10は、基板1の厚みDsubと、貫通穴部5の支持部51までの深さD1とが、下記式(1)の関係にある。すなわち、図2に示されるように、基板1の厚みDsubが貫通穴部5の支持部51までの深さD1よりも大きいため、基板1の上側部分は、貫通穴部5内に収まらずに突出した状態である。
[数3]
Dsub>D1 ・・・式(1)
Next, the features of the substrate holder 10 according to this embodiment will be described in detail.
In the substrate holder 10 according to the present embodiment, the thickness Dsub of the substrate 1 and the depth D1 of the through hole portion 5 to the support portion 51 have a relationship of the following formula (1). That is, as shown in FIG. 2, since the thickness Dsub of the substrate 1 is larger than the depth D1 of the through hole portion 5 to the support portion 51, the upper portion of the substrate 1 does not fit in the through hole portion 5. It is in a protruding state.
[Number 3]
Dsub> D1 ・ ・ ・ Equation (1)

また、本実施形態に係る基板ホルダ10は、ホルダ本体2の表面から蓋部32(具体的には、突出部322)の基板1側の面(下面)までの距離D2は、基板1の厚みDsub、貫通穴部5の支持部51までの深さD1及び基板1の表面から蓋部32(具体的には、突出部322)の基板1側の面(下面)までの距離D3を用いて、下記式(2)により表される。
[数4]
D2=Dsub−D1+D3 ・・・式(2)
Further, in the substrate holder 10 according to the present embodiment, the distance D2 from the surface of the holder body 2 to the surface (lower surface) of the lid portion 32 (specifically, the protruding portion 322) on the substrate 1 side is the thickness of the substrate 1. Using Dsub, the depth D1 to the support portion 51 of the through hole portion 5, and the distance D3 from the surface of the substrate 1 to the surface (lower surface) of the lid portion 32 (specifically, the protruding portion 322) on the substrate 1 side. , It is expressed by the following formula (2).
[Number 4]
D2 = Dsub-D1 + D3 ... Equation (2)

すなわち、上記式(2)及び図2から明らかであるように、本実施形態に係る基板ホルダ10では、基板1は、ホルダ本体2の貫通穴部5に収容配置されたときに、カバー3の蓋部32(突出部322)が基板1に接触しない状態で固定される。したがって、基板1の表面から蓋部32(具体的には、突出部322)の基板1側の面(下面)までの距離D3が、基板1と蓋部32の突出部322との間の隙間として存在する。これにより、カバー3の蓋部32が基板1の表面に接触することがないため、熱逃げが回避できるようになっている。 That is, as is clear from the above formula (2) and FIG. 2, in the substrate holder 10 according to the present embodiment, when the substrate 1 is housed and arranged in the through hole portion 5 of the holder main body 2, the cover 3 The lid portion 32 (protruding portion 322) is fixed in a state where it does not come into contact with the substrate 1. Therefore, the distance D3 from the surface of the substrate 1 to the surface (lower surface) of the lid portion 32 (specifically, the protruding portion 322) on the substrate 1 side is the gap between the substrate 1 and the protruding portion 322 of the lid portion 32. Exists as. As a result, the lid portion 32 of the cover 3 does not come into contact with the surface of the substrate 1, so that heat escape can be avoided.

以上の構成を備える基板ホルダ10は、従来公知の成膜装置に用いられる。成膜装置としては、蒸着装置、スパッタリング装置、CVD装置等の成膜装置が挙げられる。 The substrate holder 10 having the above configuration is used in a conventionally known film forming apparatus. Examples of the film forming apparatus include a film forming apparatus such as a vapor deposition apparatus, a sputtering apparatus, and a CVD apparatus.

基板ホルダ10を成膜装置に用いたときの動作及び効果について、蒸着装置に用いたときを例に挙げて説明する。
先ず、基板ホルダ10の貫通穴部5に基板1を挿入して収容配置した後、固定部材4によりカバー3をホルダ本体2に固定する。次いで、基板1が収容配置された基板ホルダ10を、蒸着装置内に投入する。このとき、カバー3の蓋部32が基板1の外周を覆うように配置されているため、振動等により基板1が基板ホルダ10から脱落することはない。
The operation and effect when the substrate holder 10 is used in the film forming apparatus will be described by taking as an example when it is used in the vapor deposition apparatus.
First, the substrate 1 is inserted into the through hole portion 5 of the substrate holder 10 and housed and arranged, and then the cover 3 is fixed to the holder main body 2 by the fixing member 4. Next, the substrate holder 10 in which the substrate 1 is housed and arranged is put into the vapor deposition apparatus. At this time, since the lid portion 32 of the cover 3 is arranged so as to cover the outer periphery of the substrate 1, the substrate 1 does not fall off from the substrate holder 10 due to vibration or the like.

次いで、蒸着装置内を真空状態にした後、カバー3側(すなわち、基板ホルダ10の上側)に設置されたヒータによって、基板ホルダ10を上側から加熱する。このとき、基板1がカバー3の蓋部32に接触していないため、ヒータからの輻射熱を基板1に直接的に与えることができる。加えて、カバー3の蓋部32が基板1の表面に接触していないため、基板1に付加された熱エネルギが逃げるのを回避できる。 Next, after the inside of the vapor deposition apparatus is evacuated, the substrate holder 10 is heated from above by a heater installed on the cover 3 side (that is, the upper side of the substrate holder 10). At this time, since the substrate 1 is not in contact with the lid portion 32 of the cover 3, the radiant heat from the heater can be directly applied to the substrate 1. In addition, since the lid portion 32 of the cover 3 is not in contact with the surface of the substrate 1, it is possible to prevent the thermal energy applied to the substrate 1 from escaping.

次いで、ホルダ本体2に固定されたカバー3とは反対側(すなわち、ヒータにより加熱される面とは逆の面側)に設置された蒸着源によって、ホルダ本体2に設けられた貫通穴部5を通して、基板1への蒸着が実行される。その結果、本実施形態の基板ホルダ10によれば、特性ムラがなく面内均一性に優れた光電変換膜を成膜することができる。 Next, the through-hole portion 5 provided in the holder body 2 by the vapor deposition source installed on the side opposite to the cover 3 fixed to the holder body 2 (that is, the surface opposite to the surface heated by the heater). Through, vapor deposition on the substrate 1 is performed. As a result, according to the substrate holder 10 of the present embodiment, it is possible to form a photoelectric conversion film having no characteristic unevenness and excellent in-plane uniformity.

また、本実施形態に係る基板ホルダ10を用いることによって得られる光電変換膜は、特性ムラがなく面内均一性に優れることから、これを適用した撮像デバイスによれば、局所的な光電変換効率のムラがない、安定した撮像特性が得られる。したがって、かかる撮像デバイスを、4K、8K等の高精細テレビ方式用の撮像デバイスに好適に用いることができる。 Further, since the photoelectric conversion film obtained by using the substrate holder 10 according to the present embodiment has no characteristic unevenness and is excellent in in-plane uniformity, according to an imaging device to which this is applied, local photoelectric conversion efficiency. Stable imaging characteristics can be obtained with no unevenness. Therefore, such an imaging device can be suitably used as an imaging device for a high-definition television system such as 4K or 8K.

<第2実施形態>
図3は、第2実施形態に係る基板ホルダ20の断面図である。本実施形態に係る基板ホルダ20は、基板1Aの厚みが第1実施形態と相違し、これに応じてカバー3Aの構成が第1実施形態と相違している以外は、第1実施形態と同様の構成である。
<Second Embodiment>
FIG. 3 is a cross-sectional view of the substrate holder 20 according to the second embodiment. The substrate holder 20 according to the present embodiment is the same as the first embodiment except that the thickness of the substrate 1A is different from that of the first embodiment and the configuration of the cover 3A is different from that of the first embodiment. It is the composition of.

図3に示されるように、基板ホルダ20は、基板1Aの厚みDsubと、貫通穴部5の支持部51までの深さD1との関係が、第1実施形態と相違する。具体的には、本実施形態に係る基板ホルダ20では、基板1の厚みDsubと、貫通穴部5の支持部51までの深さD1とが、下記式(3)の関係にある。すなわち、図3に示されるように、基板1Aの厚みDsubが貫通穴部5の支持部51までの深さD1よりも小さいため、基板1Aは貫通穴部5内に完全に収まった状態である。
[数5]
Dsub≦D1 ・・・式(3)
As shown in FIG. 3, the substrate holder 20 differs from the first embodiment in the relationship between the thickness Dsub of the substrate 1A and the depth D1 of the through hole portion 5 to the support portion 51. Specifically, in the substrate holder 20 according to the present embodiment, the thickness Dsub of the substrate 1 and the depth D1 of the through hole portion 5 to the support portion 51 have a relationship of the following formula (3). That is, as shown in FIG. 3, since the thickness Dsub of the substrate 1A is smaller than the depth D1 of the through hole portion 5 to the support portion 51, the substrate 1A is completely contained in the through hole portion 5. ..
[Number 5]
Dsub ≤ D1 ... Equation (3)

また、ホルダ本体2の表面から蓋部32Aまでの距離D2は、0である。すなわち、本実施形態に係る蓋部32は、固定部31からそのまま真っすぐ連続して延び、貫通穴部5内に収容配置された基板1Aの外周部を覆うように突出して設けられる。このとき、ホルダ本体2の表面から蓋部32Aまでの距離D2は、基板の厚みDsub、貫通穴部の支持部までの深さD1及び基板の表面から蓋部までの距離D3を用いて、下記式(4)により表される。
[数6]
D2=D1−Dsub−D3 ・・・式(4)
The distance D2 from the surface of the holder body 2 to the lid 32A is 0. That is, the lid portion 32 according to the present embodiment extends straight and continuously from the fixing portion 31 as it is, and is provided so as to project so as to cover the outer peripheral portion of the substrate 1A housed and arranged in the through hole portion 5. At this time, the distance D2 from the surface of the holder body 2 to the lid portion 32A is described below using the thickness Dsub of the substrate, the depth D1 to the support portion of the through hole portion, and the distance D3 from the surface of the substrate to the lid portion. It is represented by the formula (4).
[Number 6]
D2 = D1-Dsub-D3 ... Equation (4)

すなわち、上記式(4)及び図3から明らかであるように、本実施形態に係る基板ホルダ20では、基板1Aは、ホルダ本体2の貫通穴部5に収容配置されたときに、カバー3Aの蓋部32Aが基板1Aに接触しない状態で固定される。したがって、基板1Aの表面から蓋部32Aの基板1A側の面(下面)までの距離D3が、基板1Aと蓋部32Aとの間の隙間として存在する。これにより、カバー3Aの蓋部32Aが基板1Aの表面に接触することがないため、熱逃げが回避できるようになっている。 That is, as is clear from the above formula (4) and FIG. 3, in the substrate holder 20 according to the present embodiment, when the substrate 1A is housed and arranged in the through hole portion 5 of the holder main body 2, the cover 3A The lid portion 32A is fixed in a state where it does not come into contact with the substrate 1A. Therefore, the distance D3 from the surface of the substrate 1A to the surface (lower surface) of the lid portion 32A on the substrate 1A side exists as a gap between the substrate 1A and the lid portion 32A. As a result, the lid portion 32A of the cover 3A does not come into contact with the surface of the substrate 1A, so that heat escape can be avoided.

本実施形態では、カバー3Aの蓋部32Aを、固定部31から真っすぐ連続して延びるものとしたが、これに限定されない。例えば、固定部31の端部から貫通穴部5内に収容配置された基板1Aの表面に向かって垂下する垂下部と、該垂下部の先端から基板1Aの表面に沿って突出する突出部と、から構成してもよい。この場合にも、上述の式(4)を満足するように構成される。 In the present embodiment, the lid portion 32A of the cover 3A extends straight and continuously from the fixing portion 31, but the present invention is not limited to this. For example, a hanging portion that hangs from the end of the fixing portion 31 toward the surface of the substrate 1A housed and arranged in the through hole portion 5, and a protruding portion that protrudes from the tip of the hanging portion along the surface of the substrate 1A. , May be composed of. Also in this case, it is configured to satisfy the above equation (4).

以上の構成を備える基板ホルダ20は、第1実施形態に係る基板ホルダ10と同様に、従来公知の成膜装置に用いることができる。また、本実施形態に係る基板ホルダ20によれば、第1実施形態に係る基板ホルダ10と同様の動作及び効果が奏される。 The substrate holder 20 having the above configuration can be used in a conventionally known film forming apparatus, like the substrate holder 10 according to the first embodiment. Further, according to the substrate holder 20 according to the present embodiment, the same operations and effects as those of the substrate holder 10 according to the first embodiment are exhibited.

次に、本発明の実施例について説明するが、本発明はこれら実施例等に限定されるものではない。 Next, examples of the present invention will be described, but the present invention is not limited to these examples and the like.

<実施例1>
実施例1では、図1及び図2に示される第1実施形態の基板ホルダを作成し、蒸着装置により、基板の一面にCIGS膜を形成した。本実施例では、基板ホルダのホルダ本体及びカバーは、モリブデンで形成した。なお、ヒータによる基板の加熱温度は、530℃とした。
<Example 1>
In the first embodiment, the substrate holders of the first embodiment shown in FIGS. 1 and 2 were prepared, and a CIGS film was formed on one surface of the substrate by a thin-film deposition apparatus. In this embodiment, the holder body and cover of the substrate holder are made of molybdenum. The heating temperature of the substrate by the heater was 530 ° C.

より詳しくは、実施例1の基板ホルダでは、基板の厚みDsubが1.8mm、貫通穴部の支持部までの深さD1が1.0mm、基板の表面から蓋部までの距離D3が0.1mm、ホルダ本体の表面から蓋部までの距離D2が0.9mmであった。これらの数値は、上述の式(2)の関係を満たすものであった。 More specifically, in the substrate holder of Example 1, the thickness Dsub of the substrate is 1.8 mm, the depth D1 to the support portion of the through hole portion is 1.0 mm, and the distance D3 from the surface of the substrate to the lid portion is 0. The distance D2 from the surface of the holder body to the lid was 0.9 mm. These numerical values satisfy the relationship of the above equation (2).

<比較例1>
比較例1では、図3に示される従来の基板ホルダを作成し、蒸着装置により、実施例1と同様の条件で基板の一面にCIGS膜を形成した。
<Comparative example 1>
In Comparative Example 1, the conventional substrate holder shown in FIG. 3 was prepared, and a CIGS film was formed on one surface of the substrate by a vapor deposition apparatus under the same conditions as in Example 1.

<評価>
実施例1で得られたCIGS膜について、平面観察を実施した。図5は、実施例1で得られたCIGS膜を示す平面写真である。図5に示されるように、実施例1の基板ホルダを用いて成膜したCIGS膜には、ムラが生じていないことが確認された。
<Evaluation>
The CIGS film obtained in Example 1 was subjected to planar observation. FIG. 5 is a plan photograph showing the CIGS film obtained in Example 1. As shown in FIG. 5, it was confirmed that the CIGS film formed by using the substrate holder of Example 1 had no unevenness.

同様に、比較例1で得られたCIGS膜について、平面観察を実施した。図6は、比較例1で得られたCIGS膜を示す平面写真である。図6に示されるように、基板固定用ワッシャが存在する付近のCIGS膜には、大きなムラが生じていることが確認された。 Similarly, the CIGS film obtained in Comparative Example 1 was subjected to planar observation. FIG. 6 is a plan photograph showing the CIGS film obtained in Comparative Example 1. As shown in FIG. 6, it was confirmed that the CIGS film in the vicinity of the substrate fixing washer had large unevenness.

実施例1で得られたCIGS膜について、電流−電圧特性を測定した。図7は、電流−電圧特性を測定するための積層体の断面図である。図7に示されるように、先ず、ガラス基板上に、厚さ100nmのモリブデン電極、実施例1で得られたCIGS膜、厚さ100nmのGa層、厚さ30nmのITO電極を順次配置した積層体を作製した。次いで、ITO電極側から、受光面積0.14cm(2.0mm×7.0mm)で光を入射(入射光550nm/50μW)させて、入射側のITO電極に正、逆側のモリブデン電極に負の電圧を供給したときの、光応答により生じる電流(Is:信号電流)及び光を入射しなくとも生じる偽信号(Id:暗電流)の特性を評価した。 The current-voltage characteristics of the CIGS film obtained in Example 1 were measured. FIG. 7 is a cross-sectional view of the laminated body for measuring the current-voltage characteristic. As shown in FIG. 7, first, a molybdenum electrode having a thickness of 100 nm, a CIGS film obtained in Example 1, a Ga 2 O 3 layer having a thickness of 100 nm, and an ITO electrode having a thickness of 30 nm are sequentially placed on a glass substrate. The arranged laminate was prepared. Next, light is incident (incident light 550 nm / 50 μW) from the ITO electrode side with a light receiving area of 0.14 cm 2 (2.0 mm × 7.0 mm), and is applied to the ITO electrode on the incident side and the molybdenum electrode on the opposite side. The characteristics of the current (Is: signal current) generated by the optical response and the false signal (Id: dark current) generated without light incident were evaluated when a negative voltage was supplied.

図8は、実施例1に係る基板ホルダを用いて得られた光電変換膜(CIGS膜)の電流−電圧特性を示す図である。図8に示されるように、実施例1による本発明の基板ホルダを用いて成膜したCIGS膜は、電圧の上昇とともにIs−Id曲線が上昇していることが分かり、良好な光応答を生じていることが確認できた。すなわち、本発明の基板ホルダによれば、良好な光応答特性を有するCIGS膜が得られることが確認できた。 FIG. 8 is a diagram showing the current-voltage characteristics of the photoelectric conversion film (CIGS film) obtained by using the substrate holder according to the first embodiment. As shown in FIG. 8, in the CIGS film formed by using the substrate holder of the present invention according to Example 1, it was found that the Is-Id curve increased as the voltage increased, and a good optical response was generated. I was able to confirm that. That is, according to the substrate holder of the present invention, it was confirmed that a CIGS film having good optical response characteristics can be obtained.

一方、図9は、比較例1に係る基板ホルダを用いて得られた光電変換膜(CIGS膜)の電流−電圧特性を示す図である。図9に示されるように、比較例1による従来の基板ホルダを用いて成膜したCIGS膜は、電圧が上昇してもIs−Id曲線は上昇せず変化がないことが分かり、光に対する応答がないことが確認できた。 On the other hand, FIG. 9 is a diagram showing the current-voltage characteristics of the photoelectric conversion film (CIGS film) obtained by using the substrate holder according to Comparative Example 1. As shown in FIG. 9, it was found that the CIGS film formed by using the conventional substrate holder according to Comparative Example 1 did not increase the Is-Id curve even when the voltage increased and did not change, and responded to light. It was confirmed that there was no.

1,1A 基板
2 ホルダ本体
3,3A カバー
4 固定部材
5 貫通穴部
10,20 基板ホルダ
31 固定部
32,32A 蓋部
51 支持部
Dsub 基板の厚み
D1 貫通穴部の支持部までの深さ
D2 ホルダ本体の表面から蓋部までの距離
D3 基板の表面から蓋部までの距離
1,1A Board 2 Holder body 3,3A Cover 4 Fixing member 5 Through hole 10,20 Board holder 31 Fixing 32,32A Lid 51 Support Dsub Board thickness D1 Depth to support of through hole D2 Distance from the surface of the holder body to the lid D3 Distance from the surface of the substrate to the lid

Claims (6)

基板を加熱して前記基板の表面に膜を形成する成膜装置用の基板ホルダであって、
前記基板が収容配置される貫通穴部を有する平板状のホルダ本体と、
前記貫通穴部の外周に固定配置された固定部と、前記貫通穴部に収容配置された前記基板の外周部の表面の少なくとも一部を覆うように突出する蓋部と、を有するカバーと、を備え、
前記貫通穴部は、内壁面から突出して前記基板の外周部の裏面側から前記基板を支持する支持部を有し、
前記カバーは、前記貫通穴部に収容配置された前記基板に接触しない、基板ホルダ。
A substrate holder for a film forming apparatus that heats a substrate to form a film on the surface of the substrate.
A flat plate-shaped holder body having a through hole for accommodating and arranging the substrate, and
A cover having a fixed portion fixedly arranged on the outer periphery of the through hole portion and a lid portion protruding so as to cover at least a part of the surface of the outer peripheral portion of the substrate accommodated and arranged in the through hole portion. With
The through hole portion has a support portion that projects from the inner wall surface and supports the substrate from the back surface side of the outer peripheral portion of the substrate.
The cover is a substrate holder that does not come into contact with the substrate accommodated and arranged in the through hole portion.
前記基板の厚みDsubと、前記貫通穴部の前記支持部までの深さD1とが、下記式(1)の関係にあるとき、前記ホルダ本体の表面から前記蓋部までの距離D2は、前記基板の厚みDsub、前記貫通穴部の前記支持部までの深さD1及び前記基板の表面から前記蓋部までの距離D3を用いて、下記式(2)により表される、請求項1に記載の基板ホルダ。
[数1]
Dsub>D1 ・・・式(1)
D2=Dsub−D1+D3 ・・・式(2)
When the thickness Dsub of the substrate and the depth D1 of the through hole portion to the support portion are in the relationship of the following formula (1), the distance D2 from the surface of the holder body to the lid portion is the said. The first aspect of the present invention, which is represented by the following formula (2), using the thickness Dsub of the substrate, the depth D1 of the through hole portion to the support portion, and the distance D3 from the surface of the substrate to the lid portion. Board holder.
[Number 1]
Dsub> D1 ・ ・ ・ Equation (1)
D2 = Dsub-D1 + D3 ... Equation (2)
前記基板の厚みDsubと、前記貫通穴部の前記支持部までの深さD1とが、下記式(3)の関係にあるとき、前記ホルダ本体の表面から前記蓋部までの距離D2は、前記基板の厚みDsub、前記貫通穴部の前記支持部までの深さD1及び前記基板の表面から前記蓋部までの距離D3を用いて、下記式(4)により表される、請求項1に記載の基板ホルダ。
[数2]
Dsub≦D1 ・・・式(3)
D2=D1−Dsub−D3 ・・・式(4)
When the thickness Dsub of the substrate and the depth D1 of the through hole portion to the support portion are in the relationship of the following formula (3), the distance D2 from the surface of the holder body to the lid portion is the said. The first aspect of the present invention, which is represented by the following formula (4), using the thickness Dsub of the substrate, the depth D1 of the through hole portion to the support portion, and the distance D3 from the surface of the substrate to the lid portion. Board holder.
[Number 2]
Dsub ≤ D1 ... Equation (3)
D2 = D1-Dsub-D3 ... Equation (4)
前記膜は、光電変換膜である、請求項1〜3いずれかに記載の基板ホルダ。 The substrate holder according to any one of claims 1 to 3, wherein the film is a photoelectric conversion film. 前記膜は、CIGS膜である、請求項1〜4いずれかに記載の基板ホルダ。 The substrate holder according to any one of claims 1 to 4, wherein the film is a CIGS film. 請求項1〜5いずれかに記載の基板ホルダを備える成膜装置。 A film forming apparatus comprising the substrate holder according to any one of claims 1 to 5.
JP2019168199A 2019-09-17 2019-09-17 Substrate holder and film depositing apparatus Pending JP2021048161A (en)

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