JP7284683B2 - バルク弾性波コンポーネントと無線通信デバイス - Google Patents
バルク弾性波コンポーネントと無線通信デバイス Download PDFInfo
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- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10N30/01—Manufacture or treatment
- H10N30/08—Shaping or machining of piezoelectric or electrostrictive bodies
- H10N30/085—Shaping or machining of piezoelectric or electrostrictive bodies by machining
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Description
本願は、2018年10月18日に出願された「バルク弾性波コンポーネントとそのプラズマダイシングの方法」との名称の米国仮特許出願第62/747,486号の優先権の利益を主張し、その開示は、全体がここに参照により組み入れられる。
Claims (20)
- バルク弾性波コンポーネントであって、
シリコン基板と、
前記シリコン基板上の少なくとも一つのバルク弾性波共振器と、
前記シリコン基板の、前記少なくとも一つのバルク弾性波共振器とは反対側のバッファ層と、
前記少なくとも一つのバルク弾性波共振器を封入するキャップと
を含み、
前記バッファ層は、シリコンのエッチング速度と比べて30倍以上遅いエッチング速度を有する材料を含み、
前記キャップは、前記シリコン基板のエッジから離間した側壁を含み、
前記キャップの頂部はシリコンキャップ基板を含み、
前記側壁は、前記シリコン基板のエッジから5ミクロン以下に存在する、バルク弾性波コンポーネント。 - 前記側壁は、前記シリコン基板のエッジから3ミクロンに存在する、請求項1のバルク弾性波コンポーネント。
- 前記側壁は、前記シリコン基板のエッジから少なくとも1ミクロンに存在する、請求項1のバルク弾性波コンポーネント。
- 前記シリコン基板を貫通するビアと、
前記ビアの中の導電層と
をさらに含み、
前記バッファ層の一部分が前記ビアの中に存在し、
前記バッファ層は樹脂を含む、請求項1のバルク弾性波コンポーネント。 - 前記シリコン基板を貫通するビアと、
前記ビアから側方に延びて前記ビアの中の導電層に電気的に接続された導体と、
前記導体上で前記ビアから側方に配置されて前記ビアとは重ならないはんだと
をさらに含む、請求項1のバルク弾性波コンポーネント。 - 前記少なくとも一つのバルク弾性波共振器は薄膜バルク弾性波共振器を含む、請求項1のバルク弾性波コンポーネント。
- 前記少なくとも一つのバルク弾性波共振器はソリッドマウント共振器を含む、請求項1のバルク弾性波コンポーネント。
- 前記側壁は銅を含む、請求項1のバルク弾性波コンポーネント。
- 前記少なくとも一つのバルク弾性波共振器は、無線周波数信号をフィルタリングするべく配列されたフィルタに含まれた複数のバルク弾性波共振器を含む、請求項1のバルク弾性波コンポーネント。
- 前記複数のバルク弾性波共振器は、少なくとも10個のバルク弾性波共振器を含む、請求項9のバルク弾性波コンポーネント。
- 前記側壁は、プラズマダイシングの結果として前記シリコン基板のエッジから5ミクロン以下に存在する、請求項1のバルク弾性波コンポーネント。
- バルク弾性波コンポーネントであって、
シリコン基板と、
前記シリコン基板上の少なくとも一つのバルク弾性波共振器と、
前記シリコン基板の、前記少なくとも一つのバルク弾性波共振器とは反対側のバッファ層と、
前記少なくとも一つのバルク弾性波共振器を封入するキャップと
を含み、
前記バッファ層は、プラズマダイシングを目的とするシリコンのエッチング速度と比べて前記プラズマダイシングを目的とする30倍以上遅いエッチング速度を有する材料を含み、
前記キャップは、キャップ基板及び側壁を含み、
前記キャップ基板はシリコンを含み、
前記側壁は、前記シリコン基板のエッジから、1ミクロンから5ミクロンの範囲にある距離だけ離間される、バルク弾性波コンポーネント。 - 前記シリコン基板を貫通するビアと、
前記ビアの中の導電層と
をさらに含み、
前記バッファ層の一部分が前記ビアの中に存在し、
前記バッファ層は樹脂を含む、請求項12のバルク弾性波コンポーネント。 - 前記シリコン基板を貫通するビアと、
前記ビアから側方に延びて前記ビアの中の導電層に電気的に接続された導体と、
前記導体上で前記ビアから側方に配置されて前記ビアとは重ならないはんだと
をさらに含む、請求項12のバルク弾性波コンポーネント。 - 前記側壁は銅を含む、請求項12のバルク弾性波コンポーネント。
- 前記少なくとも一つのバルク弾性波共振器は、無線周波数信号をフィルタリングするべく配列された弾性波フィルタに含まれた少なくとも10個のバルク弾性波共振器を含む、請求項12のバルク弾性波コンポーネント。
- 前記バッファ層はフェノール樹脂を含む、請求項12のバルク弾性波コンポーネント。
- 無線通信デバイスであって、
アンテナと、
シリコン基板、前記シリコン基板上のバルク弾性波共振器、前記シリコン基板の、前記少なくとも一つのバルク弾性波共振器とは反対側のバッファ層、及び前記バルク弾性波共振器を封入するキャップを含むバルク弾性波コンポーネントと
を含み、
前記バッファ層は、シリコンのエッチング速度と比べて30倍以上遅いエッチング速度を有する材料を含み、
前記キャップは、前記シリコン基板のエッジから、5ミクロン以下だけ離間した側壁を含み、
前記キャップの頂部はシリコンキャップ基板を含み、
前記バルク弾性波共振器は、前記アンテナと通信するフィルタに含まれる、無線通信デバイス。 - 前記無線通信デバイスは携帯電話機として構成される、請求項18の無線通信デバイス。
- 前記フィルタと通信する無線周波数増幅器と、
前記フィルタと前記アンテナとの間に結合されたスイッチと
をさらに含む、請求項18の無線通信デバイス。
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