发明名称 |
Surface-acoustic-wave device having an improved pass-band characteristic and an improved degree of freedom for setting input and output impedances |
摘要 |
A surface acoustic wave device supported by a package body. At least one surface acoustic wave element having interdigital electrodes disposed on a propagation path of a surface acoustic wave on the piezoelectric substrate. These interdigital electrodes include an input-side interdigital electrode connected to a ground pad on the package body and an output-side interdigital electrode connected to another ground pad on the package body.
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申请公布号 |
US6271739(B1) |
申请公布日期 |
2001.08.07 |
申请号 |
US19990363751 |
申请日期 |
1999.07.30 |
申请人 |
FUJITSU LIMITED |
发明人 |
UEDA MASANORI;ENDOH GOU;KAWACHI OSAMU;FUJIWARA YOSHIRO |
分类号 |
H01L41/09;H03H9/00;H03H9/10;H03H9/145;H03H9/25;H03H9/64;(IPC1-7):H03H9/64 |
主分类号 |
H01L41/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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