JP7181899B2 - ハイブリッドレーザスクライビングおよびプラズマエッチングウエハ個片化プロセスのための光吸収マスク - Google Patents
ハイブリッドレーザスクライビングおよびプラズマエッチングウエハ個片化プロセスのための光吸収マスク Download PDFInfo
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- JP7181899B2 JP7181899B2 JP2019565287A JP2019565287A JP7181899B2 JP 7181899 B2 JP7181899 B2 JP 7181899B2 JP 2019565287 A JP2019565287 A JP 2019565287A JP 2019565287 A JP2019565287 A JP 2019565287A JP 7181899 B2 JP7181899 B2 JP 7181899B2
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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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02076—Cleaning after the substrates have been singulated
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
- H01L21/0275—Photolithographic processes using lasers
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- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/268—Bombardment with radiation with high-energy radiation using electromagnetic radiation, e.g. laser radiation
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
- H01L21/3081—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their composition, e.g. multilayer masks, materials
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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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
- H01L21/3083—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/3086—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
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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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31127—Etching organic layers
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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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dicing (AREA)
- Laser Beam Processing (AREA)
- Drying Of Semiconductors (AREA)
Description
Claims (14)
- 複数の集積回路を含む半導体ウエハをダイシングする方法であって、
固形成分および水に基づく水溶性マトリックスを含み、前記水溶性マトリックス全体にわたる光吸収種を含むマスクを、前記半導体ウエハの上に形成することと、
間隙を備えたパターニングされたマスクおよび前記集積回路間の領域における前記半導体ウエハ内の対応するトレンチを提供するように、前記マスクおよび前記半導体ウエハの一部を、レーザスクライビングプロセスでパターニングすることであって、
ガウシアンビームでパターニングすることを含み、前記マスクの前記光吸収種が、前記パターニング中に前記ガウシアンビームの後端部を前記マスクに実質的に閉じ込め、前記ガウシアンビームの前端部が、前記パターニング中に前記半導体ウエハに実質的に閉じ込められる、レーザスクライビングプロセスでパターニングすることと、
前記トレンチを延長して、前記集積回路を個片化するように、前記パターニングされたマスク内の前記間隙を通って前記半導体ウエハをプラズマエッチングすることであって、前記パターニングされたマスクが、前記プラズマエッチング中に前記集積回路を保護する、前記プラズマエッチングすることと、
を含む方法。 - 前記光吸収種が、前記水溶性マトリックス中に溶解した水溶性染料である、請求項1に記載の方法。
- 前記光吸収種が、前記水溶性マトリックス全体にわたる顔料のナノ分散である、請求項1に記載の方法。
- 前記マスクが、前記水溶性マトリックス全体にわたって分散した複数の粒子を、さらに含み、前記固形成分の重量%と前記複数の粒子の重量%の比が、おおよそ1:0.1~1:4の範囲にある、請求項1に記載の方法。
- 前記複数の粒子が、おおよそ5~100ナノメートルの範囲の平均直径を有する、請求項4に記載の方法。
- 前記マスクの前記複数の粒子が、レーザスクライビングプロセスでの前記マスクの前記パターニング中に、前記レーザスクライビングプロセスを実質的に妨げることをしない、請求項5に記載の方法。
- 複数の集積回路を含む半導体ウエハをダイシングする方法であって、
固形成分および水に基づく水溶性マトリックスを含み、前記水溶性マトリックス全体にわたる光吸収種を含むマスクを、前記半導体ウエハの上に形成することと、
間隙を備えたパターニングされたマスクおよび前記集積回路間の領域における前記半導体ウエハ内の対応するトレンチを提供するように、前記マスクおよび前記半導体ウエハの一部を、レーザスクライビングプロセスでパターニングすることと、
前記トレンチを延長して、前記集積回路を個片化するように、前記パターニングされたマスク内の前記間隙を通って前記半導体ウエハをプラズマエッチングすることであって、前記パターニングされたマスクが、前記プラズマエッチング中に前記集積回路を保護する、前記プラズマエッチングすることと、を含み、
前記マスクが、前記水溶性マトリックス全体にわたって分散した複数の粒子を、さらに含み、前記固形成分の重量%と前記複数の粒子の重量%の比が、おおよそ1:0.1~1:4の範囲にあり、
前記半導体ウエハをプラズマエッチングすることが、単結晶シリコンウエハをプラズマエッチングすることを含み、前記単結晶シリコンウエハのエッチング速度と前記マスクのエッチング速度の比が、前記プラズマエッチング中に、おおよそ15:1~170:1の範囲にある、方法。 - 前記半導体ウエハの上に前記マスクを形成することが、前記半導体ウエハの表面に前記マスクをスピンコーティングすることを含む、請求項1に記載の方法。
- 前記半導体ウエハをプラズマエッチングした後に、水溶液を使用して前記パターニングされたマスクを除去することを、さらに含む、請求項1に記載の方法。
- 前記マスクをパターニングした後で、かつ前記集積回路を個片化するように、前記パターニングされたマスク内の前記間隙を通って前記半導体ウエハをプラズマエッチングする前に、プラズマ洗浄プロセスで前記半導体ウエハ内の前記トレンチを洗浄することを、さらに含む、請求項1に記載の方法。
- ウエハ個片化プロセスのためのマスクであって、
固形成分および水に基づく水溶性マトリックス、
前記水溶性マトリックス全体にわたる光吸収種であって、レーザスクライビングプロセス中にガウシアンビームの後端部を前記マスクに実質的に閉じ込めるように構成されている光吸収種、ならびに
前記光吸収種とは異なる、前記水溶性マトリックス全体にわたって分散した複数の粒子、
を含むマスク。 - 前記光吸収種が、前記水溶性マトリックス中に溶解した水溶性染料、および前記水溶性マトリックス全体にわたる顔料のナノ分散からなる群から選択される、請求項11に記載のマスク。
- 前記複数の粒子が、おおよそ5~100ナノメートルの範囲の平均直径を有する、請求項11に記載のマスク。
- 前記固形成分の重量%と前記複数の粒子の重量%の比が、おおよそ1:0.1~1:4の範囲にある、請求項11に記載のマスク。
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- 2018-05-11 JP JP2019565287A patent/JP7181899B6/ja active Active
- 2018-05-11 EP EP18805731.9A patent/EP3631848B1/en active Active
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Publication number | Publication date |
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CN110800097A (zh) | 2020-02-14 |
KR102566322B1 (ko) | 2023-08-14 |
EP3631848B1 (en) | 2024-10-16 |
US11158540B2 (en) | 2021-10-26 |
KR20200003252A (ko) | 2020-01-08 |
WO2018217481A1 (en) | 2018-11-29 |
US20180342422A1 (en) | 2018-11-29 |
JP2020522137A (ja) | 2020-07-27 |
EP3631848A1 (en) | 2020-04-08 |
EP3631848A4 (en) | 2021-03-03 |
CN110800097B (zh) | 2023-08-15 |
JP7181899B6 (ja) | 2022-12-16 |
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