JPWO2020121827A1 - テラヘルツ装置およびテラヘルツ装置の製造方法 - Google Patents
テラヘルツ装置およびテラヘルツ装置の製造方法 Download PDFInfo
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- JPWO2020121827A1 JPWO2020121827A1 JP2020559116A JP2020559116A JPWO2020121827A1 JP WO2020121827 A1 JPWO2020121827 A1 JP WO2020121827A1 JP 2020559116 A JP2020559116 A JP 2020559116A JP 2020559116 A JP2020559116 A JP 2020559116A JP WO2020121827 A1 JPWO2020121827 A1 JP WO2020121827A1
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Abstract
Description
図1〜図5は、第1実施形態にかかるテラヘルツ装置を示している。第1実施形態のテラヘルツ装置A1は、テラヘルツ素子11、封止樹脂20、内部電極30、複数の外部電極40、複数の接合部51および枠状導電体61を備えている。封止樹脂20は、第1樹脂層21および第2樹脂層22を含み、内部電極30は、複数の柱状導電体31および複数の配線層32を含む。
図22〜図25は、第2実施形態にかかるテラヘルツ装置を示している。第2実施形態のテラヘルツ装置B1は、テラヘルツ装置A1と比較して、主に、テラヘルツ素子11と異なる1つ以上の電子部品16を備えている点で異なる。
図40〜図42は、第3実施形態にかかるテラヘルツ装置を示している。第3実施形態のテラヘルツ装置C1は、テラヘルツ装置A1と比較して、主に、第2樹脂層22の形状が異なる。
図50および図51は、第4実施形態にかかるテラヘルツ装置を示している。第4実施形態のテラヘルツ装置D1は、テラヘルツ装置A1と比較して、テラヘルツ波が出射(あるいは入射)される面(第2樹脂層主面221)に、電磁波制御部材が形成されている点で異なる。本実施形態においては、電磁波制御部材は、テラヘルツ波を制御するものであり、この制御には、偏波制御、周波数制御、指向性制御、分散制御、共振制御、あるいは、近接場制御などがある。本実施形態では、テラヘルツ装置A1において、電磁波制御部材を追加した構成のテラヘルツ装置D1を示すが、先述のテラヘルツ装置B1,C1あるいはそれらの変形例に追加してもよい。
[付記1]
第1方向において離間する第1樹脂層主面および第1樹脂層裏面を有する第1樹脂層と、
前記第1樹脂層主面と同じ方向を向く第1導電体主面および前記第1樹脂層裏面と同じ方向を向く第1導電体裏面を有し、前記第1樹脂層を前記第1方向に貫通する第1導電体と、
前記第1樹脂層主面と前記第1導電体主面とに跨る第1配線層と、
前記第1樹脂層主面と同じ方向を向く素子主面および前記第1樹脂層裏面と同じ方向を向く素子裏面を有し、テラヘルツ波と電気エネルギーとの変換を行うテラヘルツ素子と、
前記第1樹脂層主面と同じ方向を向く第2樹脂層主面および前記第1樹脂層主面に接する第2樹脂層裏面を有し、前記第1配線層および前記テラヘルツ素子を覆う第2樹脂層と、
前記第1樹脂層よりも前記第1樹脂層裏面が向く方向側に配置され、前記第1導電体に導通する外部電極と、
を備えており、
前記テラヘルツ素子は、前記第1配線層に導通接合されていることを特徴とするテラヘルツ装置。
[付記2]
前記素子裏面は、前記テラヘルツ波の発振あるは受信を行う能動面である、付記1に記載のテラヘルツ装置。
[付記3]
前記第2樹脂層は、前記第2樹脂層主面から前記第1方向に窪んだ凹部を含んでおり、
前記凹部は、底面および連絡面を有し、
前記底面は、前記第2樹脂層主面と同じ方向を向き、
前記連絡面は、前記底面と前記第2樹脂層主面とに繋がる、付記1または付記2に記載のテラヘルツ装置。
[付記4]
前記連絡面を覆う金属膜をさらに備えている、付記3に記載のテラヘルツ装置。
[付記5]
前記凹部は、前記第1方向に見て、前記テラヘルツ素子に重なる、付記3または付記4に記載のテラヘルツ装置。
[付記6]
前記第2樹脂層を前記第1方向に貫通する第2導電体をさらに備えており、
前記第2導電体は、前記第1方向に見て、前記テラヘルツ素子の周囲に配置されている、付記1ないし付記5のいずれかに記載のテラヘルツ装置。
[付記7]
前記第2導電体は、前記第1方向に見て、前記テラヘルツ素子を包囲している、付記6に記載のテラヘルツ装置。
[付記8]
前記第2導電体は、前記第1方向に見て、前記第1配線層から離間している、付記6または付記7に記載のテラヘルツ装置。
[付記9]
前記第2導電体は、前記第2樹脂層主面と同じ方向を向く第2導電体主面を有する、付記6ないし付記8のいずれかに記載のテラヘルツ装置。
[付記10]
前記第2導電体主面は、前記第2樹脂層主面に対して、窪んでいる、付記9に記載のテラヘルツ装置。
[付記11]
前記外部電極は、前記第1導電体裏面を覆う第1導電体被覆部を含んでいる、付記1ないし付記10のいずれかに記載のテラヘルツ装置。
[付記12]
前記第1樹脂層裏面と同じ方向を向く第2配線層裏面を有する第2配線層をさらに備えており、
前記第2配線層裏面は、前記第1樹脂層から露出している、付記1ないし付記10のいずれかに記載のテラヘルツ装置。
[付記13]
前記テラヘルツ素子とは異なる電子部品をさらに備えており、
前記電子部品は、前記第2配線層に導通接合され、前記第1樹脂層に覆われている、付記12に記載のテラヘルツ装置。
[付記14]
前記第2配線層は、前記第1樹脂層主面と同じ方向を向く第2配線層主面をさらに有しており、
前記第1導電体裏面は、前記第2配線層主面に接している、付記12または付記13に記載のテラヘルツ装置。
[付記15]
前記外部電極は、前記第2配線層裏面を覆う第2配線層被覆部を含んでいる、付記12ないし付記14のいずれかに記載のテラヘルツ装置。
[付記16]
前記第2配線層裏面のうち前記外部電極から露出する部分を覆う保護膜をさらに備えている、付記15に記載のテラヘルツ装置。
[付記17]
前記第1樹脂層主面には、研削痕が形成されている、付記1ないし付記16のいずれかに記載のテラヘルツ装置。
[付記18]
前記第1導電体主面は、前記第1樹脂層主面に対して、窪んでいる、付記17に記載のテラヘルツ装置。
[付記19]
前記テラヘルツ素子と前記第1配線層とを接合する導電性接合層をさらに備えており、
前記第1配線層は、前記第1方向に見て、一部が前記テラヘルツ素子に重なり、
前記導電性接合層は、前記素子裏面と前記第1配線層との間に介在する、付記1ないし付記18のいずれかに記載のテラヘルツ装置。
[付記20]
第1方向において離間する基板主面および基板裏面を有する支持基板を用意する支持基板用意工程と、
前記基板主面の上に、第1導電体を形成する第1導電体形成工程と、
前記第1導電体を覆う第1樹脂層を形成する第1樹脂層形成工程と、
前記基板主面が向く側から前記基板裏面が向く側に前記第1樹脂層を研削し、前記第1導電体の一部を前記第1樹脂層から露出させることで、各々が前記第1方向において前記基板主面と同じ側を向く第1導電体主面および第1樹脂層主面を形成する第1樹脂層研削工程と、
前記第1樹脂層主面と前記第1導電体主面とに跨る第1配線層を形成する第1配線層形成工程と、
前記第1配線層の上に、テラヘルツ波と電気エネルギーとの変換を行うテラヘルツ素子を導通接合するテラヘルツ素子搭載工程と、
前記第1配線層および前記テラヘルツ素子を覆う第2樹脂層を形成する第2樹脂層形成工程と、
前記支持基板を除去することで、前記第1方向において前記第1樹脂層主面と反対側を向く第1樹脂層裏面を露出させる支持基板除去工程と、
前記第1樹脂層よりも前記第1樹脂層裏面が向く方向側に配置され、前記第1導電体に導通する外部電極を形成する外部電極形成工程と、を有することを特徴とするテラヘルツ装置の製造方法。
[付記21]
前記支持基板用意工程の後であり、前記第1導電体形成工程の前に、前記基板主面の一部を覆う第2配線層を形成する第2配線層形成工程をさらに有しており、
前記第1導電体形成工程では、前記第2配線層の上に、前記第1導電体を形成する、付記20に記載のテラヘルツ装置の製造方法。
[付記22]
前記第2配線層の上に、前記テラヘルツ素子と異なる電子部品を導通接合する電子部品搭載工程をさらに有する、付記21に記載のテラヘルツ装置の製造方法。
[付記23]
前記第1樹脂層研削工程の後であって、前記第2樹脂層形成工程の前に、前記第1樹脂層の一部の上に、第2導電体を形成する第2導電体形成工程をさらに有している、付記20ないし付記22のいずれかに記載のテラヘルツ装置の製造方法。
Claims (23)
- 第1方向において離間する第1樹脂層主面および第1樹脂層裏面を有する第1樹脂層と、
前記第1樹脂層主面と同じ方向を向く第1導電体主面および前記第1樹脂層裏面と同じ方向を向く第1導電体裏面を有し、前記第1樹脂層を前記第1方向に貫通する第1導電体と、
前記第1樹脂層主面と前記第1導電体主面とに跨る第1配線層と、
前記第1樹脂層主面と同じ方向を向く素子主面および前記第1樹脂層裏面と同じ方向を向く素子裏面を有し、テラヘルツ波と電気エネルギーとの変換を行うテラヘルツ素子と、
前記第1樹脂層主面と同じ方向を向く第2樹脂層主面および前記第1樹脂層主面に接する第2樹脂層裏面を有し、前記第1配線層および前記テラヘルツ素子を覆う第2樹脂層と、
前記第1樹脂層よりも前記第1樹脂層裏面が向く方向側に配置され、前記第1導電体に導通する外部電極と、
を備えており、
前記テラヘルツ素子は、前記第1配線層に導通接合されている、
ことを特徴とするテラヘルツ装置。 - 前記素子裏面は、前記テラヘルツ波の発振あるは受信を行う能動面である、
請求項1に記載のテラヘルツ装置。 - 前記第2樹脂層は、前記第2樹脂層主面から前記第1方向に窪んだ凹部を含んでおり、
前記凹部は、底面および連絡面を有し、
前記底面は、前記第2樹脂層主面と同じ方向を向き、
前記連絡面は、前記底面と前記第2樹脂層主面とに繋がる、
請求項1または請求項2に記載のテラヘルツ装置。 - 前記連絡面を覆う金属膜をさらに備えている、
請求項3に記載のテラヘルツ装置。 - 前記凹部は、前記第1方向に見て、前記テラヘルツ素子に重なる、
請求項3または請求項4に記載のテラヘルツ装置。 - 前記第2樹脂層を前記第1方向に貫通する第2導電体をさらに備えており、
前記第2導電体は、前記第1方向に見て、前記テラヘルツ素子の周囲に配置されている、
請求項1ないし請求項5のいずれか一項に記載のテラヘルツ装置。 - 前記第2導電体は、前記第1方向に見て、前記テラヘルツ素子を包囲している、
請求項6に記載のテラヘルツ装置。 - 前記第2導電体は、前記第1方向に見て、前記第1配線層から離間している、
請求項6または請求項7に記載のテラヘルツ装置。 - 前記第2導電体は、前記第2樹脂層主面と同じ方向を向く第2導電体主面を有する、
請求項6ないし請求項8のいずれか一項に記載のテラヘルツ装置。 - 前記第2導電体主面は、前記第2樹脂層主面に対して、窪んでいる、
請求項9に記載のテラヘルツ装置。 - 前記外部電極は、前記第1導電体裏面を覆う第1導電体被覆部を含んでいる、
請求項1ないし請求項10のいずれか一項に記載のテラヘルツ装置。 - 前記第1樹脂層裏面と同じ方向を向く第2配線層裏面を有する第2配線層をさらに備えており、
前記第2配線層裏面は、前記第1樹脂層から露出している、
請求項1ないし請求項10のいずれか一項に記載のテラヘルツ装置。 - 前記テラヘルツ素子とは異なる電子部品をさらに備えており、
前記電子部品は、前記第2配線層に導通接合され、前記第1樹脂層に覆われている、
請求項12に記載のテラヘルツ装置。 - 前記第2配線層は、前記第1樹脂層主面と同じ方向を向く第2配線層主面をさらに有しており、
前記第1導電体裏面は、前記第2配線層主面に接している、
請求項12または請求項13に記載のテラヘルツ装置。 - 前記外部電極は、前記第2配線層裏面を覆う第2配線層被覆部を含んでいる、
請求項12ないし請求項14のいずれか一項に記載のテラヘルツ装置。 - 前記第2配線層裏面のうち前記外部電極から露出する部分を覆う保護膜をさらに備えている、
請求項15に記載のテラヘルツ装置。 - 前記第1樹脂層主面には、研削痕が形成されている、
請求項1ないし請求項16のいずれか一項に記載のテラヘルツ装置。 - 前記第1導電体主面は、前記第1樹脂層主面に対して、窪んでいる、
請求項17に記載のテラヘルツ装置。 - 前記テラヘルツ素子と前記第1配線層とを接合する導電性接合層をさらに備えており、
前記第1配線層は、前記第1方向に見て、一部が前記テラヘルツ素子に重なり、
前記導電性接合層は、前記素子裏面と前記第1配線層との間に介在する、
請求項1ないし請求項18のいずれか一項に記載のテラヘルツ装置。 - 第1方向において離間する基板主面および基板裏面を有する支持基板を用意する支持基板用意工程と、
前記基板主面の上に、第1導電体を形成する第1導電体形成工程と、
前記第1導電体を覆う第1樹脂層を形成する第1樹脂層形成工程と、
前記基板主面が向く側から前記基板裏面が向く側に前記第1樹脂層を研削し、前記第1導電体の一部を前記第1樹脂層から露出させることで、各々が前記第1方向において前記基板主面と同じ側を向く第1導電体主面および第1樹脂層主面を形成する第1樹脂層研削工程と、
前記第1樹脂層主面と前記第1導電体主面とに跨る第1配線層を形成する第1配線層形成工程と、
前記第1配線層の上に、テラヘルツ波と電気エネルギーとの変換を行うテラヘルツ素子を導通接合するテラヘルツ素子搭載工程と、
前記第1配線層および前記テラヘルツ素子を覆う第2樹脂層を形成する第2樹脂層形成工程と、
前記支持基板を除去することで、前記第1方向において前記第1樹脂層主面と反対側を向く第1樹脂層裏面を露出させる支持基板除去工程と、
前記第1樹脂層よりも前記第1樹脂層裏面が向く方向側に配置され、前記第1導電体に導通する外部電極を形成する外部電極形成工程と、
を有することを特徴とするテラヘルツ装置の製造方法。 - 前記支持基板用意工程の後であり、前記第1導電体形成工程の前に、前記基板主面の一部を覆う第2配線層を形成する第2配線層形成工程をさらに有しており、
前記第1導電体形成工程では、前記第2配線層の上に、前記第1導電体を形成する、
請求項20に記載のテラヘルツ装置の製造方法。 - 前記第2配線層の上に、前記テラヘルツ素子と異なる電子部品を導通接合する電子部品搭載工程をさらに有する、
請求項21に記載のテラヘルツ装置の製造方法。 - 前記第1樹脂層研削工程の後であって、前記第2樹脂層形成工程の前に、前記第1樹脂層の一部の上に、第2導電体を形成する第2導電体形成工程をさらに有している、
請求項20ないし請求項22のいずれか一項に記載のテラヘルツ装置の製造方法。
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