JP7063334B2 - 半導体基板加熱用基板載置台および半導体基板加熱ヒータ - Google Patents
半導体基板加熱用基板載置台および半導体基板加熱ヒータ Download PDFInfo
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 6
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- 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
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- H01L21/68757—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a coating or a hardness or a material
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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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0202—Switches
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0233—Industrial applications for semiconductors manufacturing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/03—Electrodes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Resistance Heating (AREA)
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- Drying Of Semiconductors (AREA)
Description
薄膜処理の際、真空チャンバー内の雰囲気は腐食環境になるので、基板載置台の下面側に突出するようにして設けられている電極端子は、真空チャンバー内の雰囲気から隔離するのが好ましい。そこで、筒状支持体の上下端部を基板載置台の下面及び真空チャンバーの底部にそれぞれ気密にシールすると共に、該電極端子を筒状支持体の内側に設置することが行われている。この場合、基板載置面を例えば中央ゾーンとこれを囲む環状の外周ゾーンとの2ゾーンに区分してそれらの各々に発熱回路を設ける構造では、一般に該中央ゾーンの直径よりも筒状支持体の内径の方が小さい。当該外周ゾーンを加熱する発熱回路の両端部を延長して上記の中央ゾーン内を通過させ、筒状支持体の内側に設置した電極端子に接続させる必要がある。
本開示によれば、基板載置面の中央部に配される電極端子に接続する複数の発熱回路の端部の構造を簡素化できるので、該基板載置面の均熱性への悪影響を抑えながら該基板載置面をより精密に温度制御することが可能になる。
最初に本開示の実施形態を列記して説明する。本開示の半導体基板加熱用基板載置台の実施形態は、一方の面を半導体基板の載置面とし、前記載置面とは反対側の面に筒状支持体の接続部を有するセラミックス製の半導体基板加熱用基板載置台であって、上記基板載置台の内部に設けられた複数の発熱回路と、上記基板載置台の上記載置面とは反対側の面の中央部において、上記筒状支持体が接続される内側領域に設けられた複数の電極端子とを備え、上記発熱回路のうちの少なくとも2つの発熱回路のそれぞれの片端部は、上記電極端子のうちの1つである共用電極端子と、共通する延長部分を介して接続されている。これにより、基板載置面の中央部に配される電極端子に接続する発熱回路の端部の構造を簡素化できるので、該基板載置面の均熱性への悪影響を抑えながら該基板載置面をより精密に温度制御することができる。
これらの中では熱伝導率の高い窒化アルミニウムが好ましい。基板載置台1と筒状支持体2は互いに同じ材質からなるのが好ましく、これにより加熱や冷却の際に同様に膨張や縮小させることができるので、熱応力による基板載置面1aの反りや基板載置台1と筒状支持体2との接合部の破損等の問題を生じにくくすることができる。
1、100、200、300、400、500 基板載置台
1a 基板載置面
1b 接続部
2 筒状支持体
3 半導体基板加熱ヒータ
10 中央ゾーン発熱回路
20 共有延長部分
21、22 外周ゾーン発熱回路
21a、22a 非共有延長部分
30a、30b、31、32 電極端子
33 共用電極端子
121、122 外周ゾーン発熱回路
121a、121b、122a、122b 非共有延長部分
220a、220b 共有延長部分
221~224 外周ゾーン発熱回路
221a~224a 非共有延長部分
231~234 電極端子
235 共用電極端子
321~324 外周ゾーン発熱回路
321a、321b、322a、322b、323a、323b、324a、324b 非共有延長部分
420a、420b、420c 共有延長部分
421~426 外周ゾーン発熱回路
421a~426a 非共有延長部分
431~436 電極端子
437 共用電極端子
521~526 発熱回路
521a、521b、522a、522b、523a、523b、524a、524b、525a、525b、526a、526b 延長部分
Claims (5)
- 一方の面を半導体基板の載置面とし、前記載置面とは反対側の面に筒状支持体との接続部を有するセラミックス製の半導体基板加熱用基板載置台であって、
前記基板載置台の内部に設けられた複数の発熱回路と、
前記基板載置台の前記載置面とは反対側の面の中央部において、前記筒状支持体が接続される内側領域に設けられた複数の電極端子とを備え、
前記複数の発熱回路は、前記載置面の中央ゾーンを加熱する中央ゾーン発熱回路と、前記中央ゾーンの周りを加熱する複数の外周ゾーン発熱回路とからなり、
前記中央ゾーン発熱回路の直径よりも前記筒状支持体の内径の方が小さく、
前記発熱回路のうちの少なくとも2つの発熱回路のそれぞれの片端部は、前記電極端子のうちの1つである共用電極端子と、前記中央ゾーンを通る共通する延長部分を介して接続され、
前記少なくとも2つの発熱回路は、前記外周ゾーン発熱回路である、半導体基板加熱用基板載置台。 - 前記複数の発熱回路は各々個別に温度制御される、請求項1に記載の半導体基板加熱用基板載置台。
- 前記中央ゾーン発熱回路は、前記載置面の中心を中心とする同心円状の複数の中央湾曲導電部と、隣接する前記中央湾曲導電部を接続する中央直線導電部とで構成され、
前記外周ゾーン発熱回路は、前記中央ゾーン発熱回路の周囲を囲む円環状の部分を周方向に区分した複数のゾーンにおいて、それぞれ前記載置面の中心を中心とする同心円状の複数の外周湾曲導電部と、隣接する前記外周湾曲導電部を接続する外周直線導電部とで構成されている、請求項2に記載の半導体基板加熱用基板載置台。 - 請求項1から請求項3のいずれか1項に記載の半導体基板加熱用基板載置台と、筒状支持体とを有する、半導体基板加熱ヒータ。
- 一方の面を半導体基板の載置面とするセラミックス製の基板載置台と、
前記基板載置台の前記載置面とは反対側の面の中央部に接続されたセラミックス製の筒状支持体とを有し、
前記基板載置台は、中央ゾーン発熱回路と、
前記中央ゾーン発熱回路とは前記基板載置台の厚み方向において異なる平面内に埋設された複数の外周ゾーン発熱回路と、
前記基板載置台の前記載置面とは反対側の面において、前記筒状支持体が接続される内側領域に設けられた複数の電極端子とを備え、
前記外周ゾーン発熱回路のうちの少なくとも2つの発熱回路のそれぞれの片端部は、前記電極端子のうちの1つの共用電極端子と、前記中央ゾーン発熱回路の領域を通る共通する延長部分を介して接続されている、半導体基板加熱ヒータ。
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KR20200018433A (ko) | 2020-02-19 |
KR102468523B1 (ko) | 2022-11-17 |
WO2018230408A1 (ja) | 2018-12-20 |
JPWO2018230408A1 (ja) | 2020-04-23 |
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