JP6530878B1 - ウエハ載置台及びその製法 - Google Patents
ウエハ載置台及びその製法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 61
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims description 16
- 239000002243 precursor Substances 0.000 claims description 12
- 238000010304 firing Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 235000012431 wafers Nutrition 0.000 description 93
- 238000010438 heat treatment Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical group [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
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- 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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- B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
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- C04B35/645—Pressure sintering
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- 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
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- 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
- H01L21/68757—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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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
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- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
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Abstract
Description
ウエハ載置面を有するセラミックス基体の内部に、前記ウエハ載置面に近い方から、第1電極と第2電極とが前記ウエハ載置面に平行になるように埋設され、前記第1電極と前記第2電極とを電気的に導通する導通部を備えたウエハ載置台であって、
前記導通部は、前記第1電極と前記第2電極との間に前記ウエハ載置面に平行な板状の金属メッシュ部材を複数枚重ねたものである。
(a)第1電極又はその前駆体が埋設されたセラミックス加圧成形体の一方の面から第1電極又はその前駆体まで導通部を配置するための穴を掘る工程と
(b)前記穴の中に板状の金属メッシュ部材を前記第1電極又はその前駆体に平行になるように複数枚重ねて入れ、最上段の前記金属メッシュ部材が前記穴の口に至るようにする工程と、
(c)前記セラミックス加圧成形体の前記一方の面に、第2電極又はその前駆体を、前記第1電極に平行に且つ最上段の前記金属メッシュ部材と接するように設ける工程と、
(d)前記第2電極又はその前駆体を覆うように前記セラミックス加圧成形体の前記一方の面にセラミックス粉末を敷いて加圧成形することにより積層体を得る工程と、
(e)前記積層体をホットプレス焼成する工程と、
を含むものである。
Claims (6)
- ウエハ載置面を有するセラミックス基体の内部に、前記ウエハ載置面に近い方から、第1電極と第2電極とが前記ウエハ載置面に平行になるように埋設され、前記第1電極と前記第2電極とを電気的に導通する導通部を備えたウエハ載置台であって、
前記導通部は、前記第1電極と前記第2電極との間に前記ウエハ載置面に平行な板状の金属メッシュ部材を複数枚重ねたものである、
ウエハ載置台。 - 前記金属メッシュ部材の網目空間には、前記セラミックス基体の材料が入り込んでいる、
請求項1に記載のウエハ載置台。 - 前記第1電極及び前記第2電極は、静電電極として用いられるか、RF電極として用いられるか、又は、静電電極及びRF電極の両方に用いられる、
請求項1又は2に記載のウエハ載置台。 - 前記第1電極は円板電極であり、前記第2電極は前記第1電極よりも径が大きく前記第1電極と同心円上の円板電極又は環状電極である、
請求項1〜3のいずれか1項に記載のウエハ載置台。 - 前記セラミックス基体は、前記ウエハ載置面の外側に前記ウエハ載置面よりも低い環状段差面を有し、
前記第1電極は、前記ウエハ載置面と向かい合うように設けられ、
前記第2電極は、前記環状段差面に向かい合うように設けられている、
請求項1〜4のいずれか1項に記載のウエハ載置台。 - (a)第1電極又はその前駆体が埋設されたセラミックス加圧成形体の一方の面から第1電極又はその前駆体まで導通部を配置するための穴を掘る工程と
(b)前記穴の中に板状の金属メッシュ部材を前記第1電極又はその前駆体に平行になるように複数枚重ねて入れ、最上段の前記金属メッシュ部材が前記穴の口に至るようにする工程と、
(c)前記セラミックス加圧成形体の前記一方の面に、第2電極又はその前駆体を、前記第1電極に平行に且つ最上段の前記金属メッシュ部材と接するように設ける工程と、
(d)前記第2電極又はその前駆体を覆うように前記セラミックス加圧成形体の前記一方の面にセラミックス粉末を敷いて加圧成形することにより積層体を得る工程と、
(e)前記積層体をホットプレス焼成する工程と、
を含むウエハ載置台の製法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US201762576240P | 2017-10-24 | 2017-10-24 | |
US62/576,240 | 2017-10-24 | ||
PCT/JP2018/039066 WO2019082821A1 (ja) | 2017-10-24 | 2018-10-19 | ウエハ載置台及びその製法 |
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JP6530878B1 true JP6530878B1 (ja) | 2019-06-12 |
JPWO2019082821A1 JPWO2019082821A1 (ja) | 2019-11-14 |
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JP (1) | JP6530878B1 (ja) |
KR (1) | KR102340580B1 (ja) |
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KR102107985B1 (ko) * | 2019-06-05 | 2020-05-07 | 주식회사 케이에스엠컴포넌트 | 플라즈마 처리 장치용 세라믹 구조체 및 그의 제조방법 |
KR20230028219A (ko) * | 2020-06-29 | 2023-02-28 | 스미토모 오사카 세멘토 가부시키가이샤 | 정전 척 장치 |
JP7414747B2 (ja) * | 2021-01-20 | 2024-01-16 | 日本碍子株式会社 | ウエハ載置台及びその製造方法 |
JP7364609B2 (ja) * | 2021-02-10 | 2023-10-18 | 日本碍子株式会社 | セラミックヒータ |
JP7550685B2 (ja) | 2021-03-17 | 2024-09-13 | 新光電気工業株式会社 | 静電チャック及び基板固定装置 |
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JPH06283595A (ja) * | 1993-03-30 | 1994-10-07 | Sony Corp | 静電吸着ステージおよびその使用方法 |
JPH09213455A (ja) * | 1996-02-05 | 1997-08-15 | Kyocera Corp | ウエハ保持装置の給電構造 |
JP2002231798A (ja) * | 2001-01-31 | 2002-08-16 | Kyocera Corp | ウエハ支持部材及びその製造方法 |
KR20040082454A (ko) * | 2003-03-19 | 2004-09-30 | 주식회사 코미코 | 메쉬 전극을 갖는 세라믹 정전척 및 그 제조 방법 |
JP2011525694A (ja) * | 2008-06-23 | 2011-09-22 | アプライド マテリアルズ インコーポレイテッド | 異なる高さの内側及び外側電極を備えたカソード |
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US11398401B2 (en) | 2022-07-26 |
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