JP2020088189A - 生体適合性貫通電極付きガラス基板ならびに生体適合性小型電子デバイス - Google Patents
生体適合性貫通電極付きガラス基板ならびに生体適合性小型電子デバイス Download PDFInfo
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- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/111—Pads for surface mounting, e.g. lay-out
- H05K1/112—Pads for surface mounting, e.g. lay-out directly combined with via connections
- H05K1/113—Via provided in pad; Pad over filled via
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
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- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
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Abstract
Description
Claims (25)
- 生体適合性ガラスのガラス板と、このガラス板を貫通して設けられた生体適合性金属の貫通電極とからなる生体適合性貫通電極付きガラス基板。
- 前記貫通電極は、少なくとも表面が生体適合性金属からなる請求項1に記載の生体適合性貫通電極付きガラス基板。
- 前記生体適合性ガラスは、体内に存在する元素であるケイ素、ホウ素、カルシウム、ナトリウム、リン、酸素のみで構成され、主成分としてSiO2のベースにNa2O、CaOの少なくとも1つを含み、これに必要に応じてB2O3、P2O3の少なくとも1つをさらに含んだガラスからなる請求項1または請求項2に記載の生体適合性貫通電極付きガラス基板。
- 前記生体適合性金属は、体内環境で不溶性かつ非腐食性の白金、タンタル、タングステン、チタン、チタン合金、Co−Cr合金、ステンレス鋼の何れかの1つからなる請求項1ないし請求項3の何れか1つに記載の生体適合性貫通電極付きガラス基板。
- 生体適合性ガラスのガラス板と、このガラス板を貫通して設けられた生体適合性金属の貫通電極を有する生体適合性貫通電極付きガラス基板と、前記ガラス板に封着されかつ前記貫通電極と電気接続された電気・電子装置とからなる生体適合性電子デバイス。
- 前記貫通電極は、少なくとも表面が生体適合性金属からなる請求項5に記載の生体適合性電子デバイス。
- 前記生体適合性ガラスは、体内に存在する元素であるケイ素、ホウ素、カルシウム、ナトリウム、リン、酸素のみで構成され、主成分としてSiO2のベースにNa2O、CaOの少なくとも1つを含み、これに必要に応じてB2O3、P2O3の少なくとも1つをさらに含んだガラスからなる請求項5または請求項6に記載の生体適合性電子デバイス。
- 前記生体適合性金属は、体内環境で不溶性かつ非腐食性の白金、タンタル、タングステン、チタン、チタン合金、Co−Cr合金、ステンレス鋼の何れかの1つからなる請求項5ないし請求項7の何れか1つに記載の生体適合性電子デバイス。
- 前記貫通電極に接続用のバンプを有する請求項5ないし請求項8の何れかに記載の生体適合性電子デバイス。
- 前記バンプは、生体適合性の軟金属である請求項9に記載の生体適合性電子デバイス。
- 前記軟金属は、金または金合金である請求項10に記載の生体適合性電子デバイス。
- 前記バンプの一部に替えて前記電気・電子装置とは別の半導体素子からなる能動部品、コンデンサ、抵抗器、コイル、アンテナ、センサからなる受動部品または機構部品の何れかを前記貫通電極に実装した請求項9ないし請求項11の何れか1つに記載の生体適合性電子デバイス。
- 前記デバイス表面にナイロン、ポリプロピレン、ポリテトラフルオロエチレン、ポリアミド樹脂の有機化学材または水酸化リン酸カルシウム、TiN、バイオガラス、炭素、アルミナ・セラミクス、ジルコニア・セラミクスの無機化学材からなる生体適合性被覆をさらに有する請求項5ないし請求項12の何れか1つに記載の生体適合性電子デバイス。
- 前記生体適合性被覆は、前記有機化学材と前記無機化学材から構成した有機/無機複合被覆からなる請求項13に記載の生体適合性電子デバイス。
- 1)生体適合性ガラスのガラス板と前記ガラス板を貫通して設けられた生体適合性金属の貫通電極を有する生体適合性貫通電極付きガラス基板ウエハと、電気・電子装置ウエハとを用意する準備工程と、2)前記生体適合性貫通電極付きガラス基板ウエハと、前記電気・電子装置ウエハの電極同士を突き合わせて互いに貼り合せるウエハ載置工程と、3)載置した前記ウエハ同士を炉中で加熱し前記生体適合性ガラスと前記電気・電子装置の接触界面を気密封着して互いの電極同士を電気接続させて、前記生体適合性貫通電極付きガラス基板ウエハと前記電気・電子装置ウエハを一体成形させる生体適合性ガラス封着工程と、4)前記生体適合性ガラス封着工程後、一体成形した前記ウエハの前記貫通電極上に接続用のバンプを形成するバンプ形成工程と、5)さらにバンプ形成後、一体成形した前記ウエハをダイシングし、個々の電気・電子素子に分離して生体適合性電子デバイスとするダイシング工程からなる生体適合性電子デバイスの製造方法。
- 前記貫通電極は、少なくとも表面が前記生体適合性金属からなる請求項15に記載の生体適合性電子デバイスの製造方法。
- 前記生体適合性ガラスは、体内に存在する元素であるケイ素、ホウ素、カルシウム、ナトリウム、リン、酸素のみで構成され、主成分としてSiO2のベースにNa2O、CaOの少なくとも1つを含み、これに必要に応じてB2O3、P2O3の少なくとも1つをさらに含んだガラスからなる請求項15または請求項16に記載の生体適合性電子デバイスの製造方法。
- 前記生体適合性金属は、体内環境で不溶性かつ非腐食性の白金、タンタル、タングステン、チタン、チタン合金、Co−Cr合金、ステンレス鋼の何れかの1つからなる請求項15ないし請求項17の何れか1つに記載の生体適合性電子デバイスの製造方法。
- 前記バンプは、生体適合性の軟金属である請求項15ないし請求項18の何れか1つに記載の生体適合性電子デバイスの製造方法。
- 前記軟金属は、金または金合金である請求項19に記載の生体適合性電子デバイスの製造方法。
- 前記ダイシング工程の後に、生体に与える機械的な刺激を軽減するために生体適合性電子デバイスの隅角を丸く加工する研磨工程を追加した請求項15ないし請求項20の何れか1つに記載の生体適合性電子デバイスの製造方法。
- 前記ダイシング工程の後に、デバイス表面にナイロン、ポリプロピレン、ポリテトラフルオロエチレン、ポリアミド樹脂の有機化学材または水酸化リン酸カルシウム、TiN、バイオガラス、炭素、アルミナ・セラミクス、ジルコニア・セラミクスの無機化学材からなる生体適合性被覆材を施す被覆工程を追加した請求項15ないし請求項21の何れか1つに記載の生体適合性電子デバイスの製造方法。
- 前記生体適合性被覆材は、前記有機化学材と前記無機化学材から構成した有機/無機複合被覆からなる請求項22に記載の生体適合性電子デバイスの製造方法。
- 前記生体適合性被覆材は、Chemical Vapour Deposition(CDV)により施した厚さ2〜30μm程度の薄膜コーティングである請求項22または請求項23に記載の生体適合性電子デバイスの製造方法。
- 前記バンプ形成工程は、前記バンプの一部に替えて前記電気・電子装置とは別の半導体素子からなる能動部品、コンデンサ、抵抗器、コイル、アンテナ、センサからなる受動部品または機構部品の何れかを前記貫通電極に実装させることを特徴とした請求項15ないし請求項24の何れか1つに記載の生体適合性電子デバイスの製造方法。
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