JP6513082B2 - ダイの破壊強度を高め、側壁を平滑化するためのレーザスクライビング及びプラズマエッチング - Google Patents
ダイの破壊強度を高め、側壁を平滑化するためのレーザスクライビング及びプラズマエッチング Download PDFInfo
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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
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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
- H01L21/3065—Plasma etching; Reactive-ion etching
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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
- H01L21/67—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
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/67207—Apparatus for manufacturing or treating in a plurality of work-stations comprising a chamber adapted to a particular process
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
- Dicing (AREA)
- Drying Of Semiconductors (AREA)
- High Energy & Nuclear Physics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
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Description
[0001]本願は、本明細書に参照することによって全内容が以下に組み込まれる、2013年7月2日出願の米国特許仮出願第61/842056号の優先権を主張するものである。
ことの内の一又は複数のが含まれる。
Claims (15)
- 複数の集積回路を備える半導体ウェハをダイシングする方法であって、
前記半導体ウェハの上に、前記集積回路をカバーし保護するマスクを形成するマスク形成ステップと、
前記マスク形成ステップの後に、レーザスクライビングプロセスで前記マスクをパターニングし、間隙を有するパターニングされたマスクを提供して、集積回路間の前記半導体ウェハの領域をむき出しにするレーザパターニングステップと、
前記レーザパターニングステップの後に、前記パターニングされたマスクの前記間隙を通して前記半導体ウェハを異方的にエッチングし、エッチングされた溝を形成し、前記半導体ウェハを完全に貫通させ、前記集積回路を個片化する異方的エッチングステップと、
前記異方的エッチングステップの後に、SF 6 に基づくプラズマで、異方的にエッチングされた前記溝を等方的にエッチングする等方的エッチングステップと、
前記等方的エッチングステップの後に、NF3とCF4の組み合わせに基づくプラズマで、前記溝を等方的にエッチングする等方的エッチングステップと
を含む方法。 - 前記等方的エッチングステップにより、ダイ個片化後の異方的にエッチングされたダイ側壁から異方的エッチングの副生成物、粗さ、又は側壁のスカラップ形が取り除かれる、請求項1に記載の方法。
- 前記等方的エッチングステップにより、前記エッチングされた溝から、炭素及びフッ素を含むポリマーが取り除かれる、請求項1に記載の方法。
- 前記異方的エッチングステップは、エッチングされた前記溝の底部に背面テープがむき出しになるまで、ポリマーの堆積、方向性照射エッチング、及び等方的化学エッチングを含む循環プロセスを繰り返し行うことを含む、請求項1に記載の方法。
- 異方的エッチングと等方的エッチングの両方に同じプラズマエッチングチャンバが用いられる、請求項1に記載の方法。
- 前記半導体ウェハが少なくとも300mmの直径を有し、背面を研削する前の厚さが300um〜800umである、請求項1に記載の方法。
- 前記レーザパターニングステップは更に、540ナノメートル以下の波長と、400フェムト秒以下のレーザパルス幅を有するフェムト秒レーザでパターンを直接描くことを含む、請求項1に記載の方法。
- 前記マスクを形成することは更に、水溶性マスク層を前記半導体ウェハに堆積させることを含む、請求項1に記載の方法。
- 前記水溶性マスク層はPVAを含む、請求項8に記載の方法。
- 前記マスク形成ステップは更に、前記水溶性マスク層を下塗り層として含み、非水溶性マスク層を前記下塗り層の上に上塗り層として含む多層マスクを堆積させることを含む、請求項8に記載の方法。
- 前記非水溶性マスク層は、フォトレジスト又はポリイミド(PI)である、請求項10に記載の方法。
- 請求項1から11のいずれか一項に記載の方法を実施するように構成され、複数のICを備える、基板をダイシングするためのシステムであって、
多層マスクをパターニングし、前記基板の前記IC間の領域をむき出しにするレーザスクライブモジュールと、
エッチングされた溝を異方的に形成し、レーザパターニングの後に残った前記基板の厚みを貫通させる、前記レーザスクライブモジュールに物理的に結合された異方的プラズマエッチングモジュールと、
SF 6 に基づくプラズマで、異方的にエッチングされた前記溝を等方的にエッチングする、前記レーザスクライブモジュールに物理的に結合された第1の等方的プラズマエッチングモジュールと、
第1の等方的プラズマエッチングモジュール後の前記溝を、NF3とCF4の組み合わせに基づくプラズマで等方的にエッチングする、前記レーザスクライブモジュールに物理的に結合された第2の等方的プラズマエッチングモジュールと、
前記レーザスクライブモジュールから前記異方的プラズマエッチングモジュールまでレーザパターニングされた基板を移送するロボット型移送チャンバと
を備えるシステム。 - 前記レーザスクライブモジュールは、540ナノメートル以下の波長と、400フェムト秒以下のパルス幅を有するフェムト秒レーザを備える、請求項12に記載のシステム。
- 等方的プラズマエッチングチャンバと、異方的プラズマエッチングチャンバは同じ単一のチャンバである、請求項12に記載のシステム。
- 等方的プラズマエッチングチャンバは、下流プラズマ源を用いる、請求項12に記載のシステム。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361842056P | 2013-07-02 | 2013-07-02 | |
US61/842,056 | 2013-07-02 | ||
US14/293,227 US20150011073A1 (en) | 2013-07-02 | 2014-06-02 | Laser scribing and plasma etch for high die break strength and smooth sidewall |
US14/293,227 | 2014-06-02 | ||
PCT/US2014/042000 WO2015002725A1 (en) | 2013-07-02 | 2014-06-11 | Laser scribing and plasma etch for high die break strength and smooth sidewall |
Publications (2)
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JP2016528723A JP2016528723A (ja) | 2016-09-15 |
JP6513082B2 true JP6513082B2 (ja) | 2019-05-15 |
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JP2016523770A Active JP6513082B2 (ja) | 2013-07-02 | 2014-06-11 | ダイの破壊強度を高め、側壁を平滑化するためのレーザスクライビング及びプラズマエッチング |
Country Status (6)
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US (1) | US20150011073A1 (ja) |
JP (1) | JP6513082B2 (ja) |
KR (1) | KR102250628B1 (ja) |
CN (1) | CN105359256B (ja) |
TW (1) | TWI635569B (ja) |
WO (1) | WO2015002725A1 (ja) |
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JP6925358B2 (ja) * | 2015-11-24 | 2021-08-25 | プレジデント・アンド・フェロウズ・オブ・ハーバード・カレッジ | 可視スペクトルの波長のための誘電体メタサーフェス(metasurface)を製造するための原子層堆積プロセス |
JP6524594B2 (ja) * | 2016-07-07 | 2019-06-05 | パナソニックIpマネジメント株式会社 | 素子チップの製造方法 |
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- 2014-06-11 JP JP2016523770A patent/JP6513082B2/ja active Active
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CN105359256A (zh) | 2016-02-24 |
KR102250628B1 (ko) | 2021-05-12 |
US20150011073A1 (en) | 2015-01-08 |
WO2015002725A1 (en) | 2015-01-08 |
TWI635569B (zh) | 2018-09-11 |
CN105359256B (zh) | 2019-07-16 |
JP2016528723A (ja) | 2016-09-15 |
TW201507060A (zh) | 2015-02-16 |
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