JP3945504B2 - 弾性表面波装置の製造方法 - Google Patents
弾性表面波装置の製造方法 Download PDFInfo
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- JP3945504B2 JP3945504B2 JP2004319821A JP2004319821A JP3945504B2 JP 3945504 B2 JP3945504 B2 JP 3945504B2 JP 2004319821 A JP2004319821 A JP 2004319821A JP 2004319821 A JP2004319821 A JP 2004319821A JP 3945504 B2 JP3945504 B2 JP 3945504B2
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Description
12…LiTaO3基板
13a,13b…IDT
15…SiO2膜
Claims (2)
- 圧電基板を用意する工程と、
前記圧電基板上に少なくとも1つのIDTを、Auを用いて形成する工程と、
前記IDTを形成した後に、周波数調整を行う工程と、
前記周波数調整後に、前記IDTを被覆するように、表面波の波長で規格化された膜厚が0.03〜0.45の範囲にあるSiO2膜を形成する工程とを有することを特徴とする、弾性表面波装置の製造方法。 - 前記圧電基板は、25°〜55°回転Y板(オイラー角(0°,115°〜145°,0°))のLiTaO3基板であることを特徴とする、請求項1に記載の弾性表面波装置の製造方法。
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JP2004319821A JP3945504B2 (ja) | 2001-10-12 | 2004-11-02 | 弾性表面波装置の製造方法 |
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JP2001315181 | 2001-10-12 | ||
JP2004319821A JP3945504B2 (ja) | 2001-10-12 | 2004-11-02 | 弾性表面波装置の製造方法 |
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JP2002291991A Division JP3945363B2 (ja) | 2001-10-12 | 2002-10-04 | 弾性表面波装置 |
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JP2005039867A JP2005039867A (ja) | 2005-02-10 |
JP3945504B2 true JP3945504B2 (ja) | 2007-07-18 |
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JP2004319821A Expired - Lifetime JP3945504B2 (ja) | 2001-10-12 | 2004-11-02 | 弾性表面波装置の製造方法 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112436816B (zh) * | 2020-12-03 | 2024-04-09 | 广东广纳芯科技有限公司 | 温度补偿型声表面波器件及其制造方法 |
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JP2005039867A (ja) | 2005-02-10 |
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