JP6691234B2 - 基板アセンブリ及び関連方法 - Google Patents
基板アセンブリ及び関連方法 Download PDFInfo
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- JP6691234B2 JP6691234B2 JP2018560767A JP2018560767A JP6691234B2 JP 6691234 B2 JP6691234 B2 JP 6691234B2 JP 2018560767 A JP2018560767 A JP 2018560767A JP 2018560767 A JP2018560767 A JP 2018560767A JP 6691234 B2 JP6691234 B2 JP 6691234B2
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- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
- B01L3/502707—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by the manufacture of the container or its components
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Description
例えば、流体吐出システム(例えば、インクジェットカートリッジ)、微小流体バイオチップ(生体素子)などのような微小流体システムは、微小流体装置(又は微小流体デバイス)を利用することが多い。微小流体装置は、微小流体システムの微小流体流体チャネル又はネットワーク(網状構造)を介した少量の流体の操作および/または制御を可能にすることができる。例えば、微小流体デバイスは、マイクロリットル(即ち、μlの記号が用いられ、10−6リットルの単位を表す)、ナノリットル(即ち、nlの記号が用いられ、10−9リットルの単位を表す)又はピコリットル(即ち、plの記号が用いられ、10−12リットルの単位を表す)のオーダーの量で流体の操作および/または制御を可能にすることができる。
特定の例が、上記で特定された図面に示され、以下で詳述される。図面は一律の縮尺に従っておらず、図面の特定の特徴要素および特定の表示は、縮尺で誇張されて、或いは明瞭化および/または簡潔さのために模式的に示され得る。更に、本明細書で開示された例示的な微小流体装置の幾つかの構成要素は、明瞭化のために図面(単数または複数)の幾つかから取り除かれている。以下は、例示的な方法および装置を開示するが、留意されるべきは、係る方法および装置は単なる例示であり、本開示の範囲を制限するものとみなされるべきではない。
Claims (15)
- 基部層および中間層を有する基板アセンブリにセンサチャンバを形成するために前記中間層の一部をエッチングし、前記基部層が、第1の材料からなり、前記中間層が前記第1の材料と異なる第2の材料からなり、
センサ装置の第1の電極および第2の電極を前記センサチャンバ内に形成し、
前記センサチャンバと流体連絡する流体移送チャネルを形成することを含み、前記流体移送チャネルが、前記第1の材料および前記第2の材料と異なる第3の材料からなる、方法。 - 前記中間層を、第2の分離層に隣接する第1の分離層として提供することを更に含む、請求項1に記載の方法。
- 前記第1の分離層上にパッシベーション層を、及び前記第2の分離層上にキャップ層を堆積することを更に含む、請求項2に記載の方法。
- 前記基板アセンブリ上にスピンオンガラス層を付着することを更に含む、請求項1〜3の何れか1項に記載の方法。
- 前記流体移送チャネルを形成することが、前記スピンオンガラス層および前記基板アセンブリ上にエポキシ層を堆積することを含む、請求項4に記載の方法。
- 前記エポキシ層がスピンオンガラス材料上に堆積された後、前記センサチャンバから前記スピンオンガラス層を除去することを更に含む、請求項5に記載の方法。
- 前記センサチャンバを形成するために前記中間層の一部をエッチングすることが、約3μmから5μmの深さを前記中間層にエッチングすること、及び約2μmから5μmの幅を前記中間層にエッチングすることを含む、請求項1〜6の何れか1項に記載の方法。
- 前記センサチャンバに前記第1の電極および前記第2の電極を形成することが、前記基板アセンブリ上に及び前記センサチャンバ内に導電層を堆積し、前記第1の電極および前記第2の電極をマスキングし又はパターン形成し、前記センサチャンバ内に配置された三次元の第1の電極および三次元の第2の電極を提供するために前記導電層をエッチングすることを含む、請求項1〜7の何れか1項に記載の方法。
- 基部層および中間層を有する基板アセンブリにセンサチャンバを形成するために前記中間層の一部をエッチングし、
前記センサチャンバ内に導電層を堆積し、
前記導電層を通して前記センサチャンバ内でセンサ装置の少なくとも2つの電極をエッチングし、
前記センサチャンバをスピンオンガラス層でコーティングし、
前記センサチャンバと流体連絡する流体移送チャネルを形成するために前記スピンオンガラス層の上にエポキシ層を堆積することを含む、方法。 - 前記中間層における前記センサチャンバのエッチングが、約2μmから5μmの幅、及び約3μmから5μmの深さでもって前記中間層をエッチングすることを含む、請求項9に記載の方法。
- 前記エポキシ層が前記スピンオンガラス層上に堆積された後、前記センサチャンバから前記スピンオンガラス層を除去することを更に含む、請求項9又は10に記載の方法。
- 微小流体デバイス用のセンサ装置を形成するための方法であって、
第1の材料からなる基部層と、
前記基部層上に堆積され、第2の材料から形成された第1の分離層と、
前記第1の分離層上に配置されたパッシベーション層と、
前記パッシベーション層上に堆積された第2の分離層と、
前記第2の分離層上に堆積されたキャップ層とを有する基板アセンブリを形成し、
センサチャンバを画定するために前記キャップ層および前記第2の分離層をエッチングし、
前記キャップ層および前記センサチャンバ上に導電層を堆積し、
前記センサチャンバ内に配置された前記センサ装置の第1の電極および第2の電極を画定するために前記導電層の一部をエッチングし、
前記導電層、前記センサチャンバ内に配置された前記パッシベーション層、及び前記キャップ層を、スピンオンガラス層でコーティングし、
前記センサチャンバ内に配置された前記スピンオンガラス層を除いて、前記スピンオンガラス層をエッチングにより除去し、
前記導電層、前記スピンオンガラス層、及びキャップ層上にダイ表面最適化層を堆積し、
前記ダイ表面最適化層の上にエポキシ層を堆積し、
前記センサチャンバ内から前記スピンオンガラス層を除去することを含む、方法。 - 前記キャップ層上に第1のフォトレジスト層をスピン塗布し、前記キャップ層および前記第2の分離層をエッチングする前に前記キャップ層の上にセンサチャンバのパターンをマスキングすることを更に含む、請求項12に記載の方法。
- 前記センサチャンバの形成後で、前記キャップ層および前記センサチャンバ上に前記導電層を堆積する前に、前記キャップ層、前記パッシベーション層、又は前記センサチャンバを画定する前記第2の分離層の壁の少なくとも1つの上に原子層堆積層を堆積することを更に含む、請求項12又は13に記載の方法。
- 前記原子層堆積層の上にボンディング層を堆積し、次いで前記ボンディング層の上に前記導電層を堆積することを更に含む、請求項14に記載の方法。
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