JPWO2020179875A1 - 電子部品装置を製造する方法、及びこれに用いられる積層フィルム - Google Patents
電子部品装置を製造する方法、及びこれに用いられる積層フィルム Download PDFInfo
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- JPWO2020179875A1 JPWO2020179875A1 JP2020542475A JP2020542475A JPWO2020179875A1 JP WO2020179875 A1 JPWO2020179875 A1 JP WO2020179875A1 JP 2020542475 A JP2020542475 A JP 2020542475A JP 2020542475 A JP2020542475 A JP 2020542475A JP WO2020179875 A1 JPWO2020179875 A1 JP WO2020179875A1
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- rewiring
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Abstract
Description
支持体、仮固定材層、及び硬化性の接着層を備え、これらがこの順に積層されている、複合基材を準備する工程と、
前記複合基材の前記接着層上に、複数の電子部品を、前記接着層に接する接続部を前記接着層と前記電子部品との間に介在させながら配置する工程と、
前記接着層を硬化させることにより、前記複数の電子部品を前記複合基材に対して固定する工程と、
前記電子部品を封止する封止層を前記接着層上に形成する工程と、
前記封止層を硬化させる工程と、
前記仮固定材層を前記接着層から剥離することにより、前記接着層、前記電子部品及び前記封止層を有する封止構造体を得る工程と、
前記封止構造体を前記接着層側から研削することにより、前記封止層及び前記接続部が露出した回路面を形成する工程と、を含む。
Claims (9)
- 支持体、仮固定材層、及び硬化性の接着層を備え、これらがこの順に積層されている、複合基材を準備する工程と、
前記複合基材の前記接着層上に、複数の電子部品を、前記接着層に接する接続部を前記接着層と前記電子部品との間に介在させながら配置する工程と、
前記接着層を硬化させることにより、前記複数の電子部品を前記複合基材に対して固定する工程と、
前記電子部品を封止する封止層を前記接着層上に形成する工程と、
前記封止層を硬化させる工程と、
前記仮固定材層を前記接着層から剥離することにより、前記接着層、前記電子部品及び前記封止層を有する封止構造体を得る工程と、
前記封止構造体を前記接着層側から研削することにより、前記封止層及び前記接続部が露出した回路面を形成する工程と、
をこの順で含み、
前記複数の電子部品が、ICチップ、及びチップ型の受動部品を含み、
前記ICチップが、本体部、及び該本体部の一方の主面側に設けられたバンプを有し、
前記ICチップが、前記接続部としての前記バンプが前記接着層に接する向きで前記接着層上に配置され、
前記受動部品が、パターン形成用の導電体前駆体を前記接続部として前記接着層上に配置することと、前記導電体前駆体上に前記受動部品を載せることと、前記導電体前駆体を加熱することによって導電パターンを前記接続部として形成することと、をこの順で含む方法により、前記接着層上に配置される、
電子部品装置を製造する方法。 - 当該方法が、
前記封止層の前記接着層とは反対側の面から前記接着層に向けて延びるビア孔を、前記封止層内に形成する工程と、
前記ビア孔に導電性ビア用の導電体前駆体を充填する工程と、
前記ビア孔内の前記導電体前駆体を加熱することにより、導電性ビアを形成する工程と、
を更に含み、
前記封止構造体が前記導電性ビアを更に有し、前記導電性ビアが前記封止層及び前記接続部とともに前記回路面に露出するように、前記封止構造体が前記接着層側から研削される、請求項1に記載の方法。 - 前記ビア孔が、前記封止層を硬化させる工程の前に、前記封止層の前記接着層とは反対側の面に対してモールドを押し込むインプリント法によって形成される、請求項2に記載の方法。
- 導電性ビア用の前記導電体前駆体が、複数の金属粒子及び該複数の金属粒子が分散した有機バインダーを含有し、
前記導電体前駆体が加熱されたときに、前記複数の金属粒子が、遷移的液相焼結により金属焼結体を形成し、それにより前記金属焼結体を含む前記導電性ビアが形成される、請求項2又は3に記載の方法。 - 当該方法が、前記封止層の前記接続部とは反対側の面を覆い、前記導電性ビアと接続された導電性のシールド膜を形成する工程を更に含む、請求項2〜4のいずれか一項に記載の方法。
- 当該方法が、前記接続部に接続された配線を有する再配線層を前記回路面上に設ける工程を更に含む、請求項1〜5のいずれか一項に記載の方法。
- 対向する2つの主面を有する前記再配線層と前記再配線層の一方の主面上に設けられた複数のバンプとを備える再配線構造体であって、前記配線が前記複数のバンプに接続されている、再配線構造体を準備することと、
前記封止構造体と前記再配線構造体とを、前記回路面と前記複数のバンプとが対向する向きで、絶縁性接着層を介在させながら、前記接続部と前記複数のバンプのうち少なくとも一部とが接続されるように接着し、それにより前記封止構造体と前記再配線構造体とを、前記配線が前記バンプを介して前記接続部に接続されるように接続することと、
を含む方法により、前記再配線層が前記回路面上に設けられる、請求項6に記載の方法。 - 前記再配線構造体が、支持体及び該支持体上に設けられた仮固定材層を備えるキャリア基材の前記仮固定材層上に設けられ、
当該方法が、前記再配線層を前記回路面上に設ける工程の後、前記キャリア基材を前記再配線構造体から剥離する工程を更に含む、請求項7に記載の方法。 - 仮固定材層、及び前記仮固定材層上に設けられた硬化性の接着層を有し、請求項1〜8のいずれか一項に記載の方法において前記複合基材を準備するために用いられる、電子部品装置製造用積層フィルム。
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