JP4670872B2 - 弾性表面波装置 - Google Patents
弾性表面波装置 Download PDFInfo
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Description
12 圧電基板
24,24x,24y,24z ビア配線
25v,25x,25y,25z カバー配線
28,28a〜28h 外部電極
30 支持層
32 カバー
50 受信側弾性表面波フィルタ
60 送信側弾性表面波フィルタ
70 受信側弾性表面波フィルタ
80 弾性表面波フィルタ
500 弾性境界波装置
510 圧電基板
525 ビア配線
526 支持層配線
530 支持層
540 カバー
Claims (6)
- 2つの主面を有する圧電基板と、上面および下面を有するカバーとを備え、
前記圧電基板と前記カバーとが、支持層を介して間隔を設けて結合され、
前記圧電基板の前記カバーの前記下面に対向する一方主面には、前記支持層の内側に、送信側弾性表面波フィルタと受信側弾性表面波フィルタとが形成され、
前記カバーの前記上面側に、前記送信側弾性表面波フィルタ及び前記受信側弾性表面波フィルタに電気的に接続されたアンテナ端子と、前記送信側弾性表面波フィルタに電気的に接続された送信入力端子と、前記受信側弾性表面波フィルタに電気的に接続された受信出力端子とを含む外部電極が形成された、弾性表面波装置において、
前記受信側弾性表面波フィルタと前記アンテナ端子とを電気的に接続する配線が、
前記圧電基板の前記一方主面上に形成された圧電基板配線と、
前記カバーの前記上面または前記下面に設けられているカバー配線と、
前記圧電基板配線の一端と前記カバー配線の一端とを、前記支持層および前記カバーを貫通して接続するビア配線と、
を含み、
前記圧電基板の前記一方主面に垂直な方向から見たとき、前記圧電基板の周部よりも内側に前記カバーが配置されており、
前記カバーの前記上面から前記圧電基板の前記一方主面の前記周部まで全体的に覆う補強樹脂をさらに備えたことを特徴とする、弾性表面波装置。 - 前記受信側弾性表面波フィルタは、不平衡信号が入力される一つの不平衡信号端子と、平衡信号を出力する一対の平衡信号端子とを含むバランス型弾性表面波フィルタであり、
前記アンテナ端子は、前記不平衡信号端子に電気的に接続され、
前記受信出力端子は、前記平衡信号端子に電気的に接続されていることを特徴とする、請求項1に記載の弾性表面波装置。 - 2つの主面を有する圧電基板と、上面および下面を有するカバーとを備え、
前記圧電基板と前記カバーとが、支持層を介して間隔を設けて結合され、
前記圧電基板の前記カバーの前記下面に対向する一方主面には、前記支持層の内側に、送信側弾性表面波フィルタと受信側弾性表面波フィルタとが形成され、
前記カバーの前記上面側に、前記送信側弾性表面波フィルタ及び前記受信側弾性表面波フィルタに電気的に接続されたアンテナ端子と、前記送信側弾性表面波フィルタに電気的に接続された送信入力端子と、前記受信側弾性表面波フィルタに電気的に接続された受信出力端子とを含む外部電極が形成された、弾性表面波装置において、
前記送信側弾性表面波フィルタは、直列接続された複数の弾性表面波共振子を含み、
互いに隣り合って直列接続された少なくとも1組の前記弾性表面波共振子の間を電気的に接続する配線が、
前記カバーの前記上面または前記下面に設けられている少なくとも1個のカバー配線と、
該少なくとも1個のカバー配線と、前記互いに隣り合って直列接続された少なくとも1組の前記弾性表面波共振子の一方および他方とを、少なくとも前記支持層を貫通して接続する少なくとも1組のビア配線と、
を含み、
前記圧電基板の前記一方主面に垂直な方向から見たとき、前記圧電基板の周部よりも内側に前記カバーが配置されており、
前記カバーの前記上面から前記圧電基板の前記一方主面の前記周部まで全体的に覆う補強樹脂をさらに備えたことを特徴とする、弾性表面波装置。 - 2つの主面を有する圧電基板と、上面および下面を有するカバーとを備え、
前記圧電基板と前記カバーとが、支持層を介して間隔を設けて結合され、
前記圧電基板の前記カバーの前記下面に対向する一方主面には、前記支持層の内側に、送信側弾性表面波フィルタと受信側弾性表面波フィルタとが形成され、
前記カバーの前記上面側に、前記送信側弾性表面波フィルタ及び前記受信側弾性表面波フィルタに電気的に接続されたアンテナ端子と、前記送信側弾性表面波フィルタに電気的に接続された送信入力端子と、前記受信側弾性表面波フィルタに電気的に接続された受信出力端子とを含む外部電極が形成された、弾性表面波装置において、
前記受信側弾性表面波フィルタは、直列接続された複数の弾性表面波共振子を含み、
互いに隣り合って直列接続された少なくとも1組の前記弾性表面波共振子の間を電気的に接続する配線が、
前記カバーの前記上面または前記下面に設けられている少なくとも1個のカバー配線と、
該少なくとも1個のカバー配線と、前記互いに隣り合って直列接続された少なくとも1組の前記弾性表面波共振子の一方および他方とを、少なくとも前記支持層を貫通して接続する少なくとも1組のビア配線と、
を含み、
前記圧電基板の前記一方主面に垂直な方向から見たとき、前記圧電基板の周部よりも内側に前記カバーが配置されており、
前記カバーの前記上面から前記圧電基板の前記一方主面の前記周部まで全体的に覆う補強樹脂をさらに備えたことを特徴とする、弾性表面波装置。 - 2つの主面を有する圧電基板と、上面および下面を有するカバーとを備え、
前記圧電基板と前記カバーとが、支持層を介して間隔を設けて結合され、
前記圧電基板の前記カバーの前記下面に対向する一方主面には、前記支持層の内側に、弾性表面波フィルタが形成され、
前記カバーの前記上面側に、前記弾性表面波フィルタに電気的に接続された入力端子と出力端子を含む外部端子が形成された、弾性表面波装置において、
前記弾性表面波フィルタは、直列接続された複数の弾性表面波素子を含み、
互いに隣り合って直列接続された少なくとも1組の前記弾性表面波素子の間を電気的に接続する配線が、
前記カバーの前記上面または前記下面に設けられている少なくとも1個のカバー配線と、
該少なくとも1個のカバー配線と、前記互いに隣り合って直列接続された少なくとも1組の前記弾性表面波素子の一方および他方とを、少なくとも前記支持層を貫通して接続する少なくとも1組のビア配線と、
を含み、
前記圧電基板の前記一方主面に垂直な方向から見たとき、前記圧電基板の周部よりも内側に前記カバーが配置されており、
前記カバーの前記上面から前記圧電基板の前記一方主面の前記周部まで全体的に覆う補強樹脂をさらに備えたことを特徴とする、弾性表面波装置。 - 前記カバー配線が、メッキによって形成されることを特徴とする、請求項1〜5のいずれか一項に記載の弾性表面波装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006010482 | 2006-01-18 | ||
JP2006010482 | 2006-01-18 | ||
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KR20190097275A (ko) | 2017-02-03 | 2019-08-20 | 가부시키가이샤 무라타 세이사쿠쇼 | 탄성 표면파 장치 |
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Also Published As
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CN101361267A (zh) | 2009-02-04 |
EP2501039B1 (en) | 2015-04-15 |
EP2501039A2 (en) | 2012-09-19 |
JPWO2007083432A1 (ja) | 2009-06-11 |
US7583161B2 (en) | 2009-09-01 |
US20080266023A1 (en) | 2008-10-30 |
CN101361267B (zh) | 2011-09-14 |
EP2501039A3 (en) | 2013-06-05 |
EP1976118A1 (en) | 2008-10-01 |
WO2007083432A1 (ja) | 2007-07-26 |
EP1976118A4 (en) | 2011-12-14 |
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