发明名称 |
Surface-mount type crystal oscillator |
摘要 |
A surface-mount type crystal oscillator includes: a container body with a first recess and a second recess; a crystal blank including excitation electrodes on respective principal surfaces thereof and hermetically encapsulated in the first recess; and an IC chip which is accommodated in the second recess and into which at least an oscillation circuit using the crystal blank is integrated. The container body includes a bottom wall and a frame wall provided on the bottom wall. Two openings which make up the first and second recesses, respectively, are formed in juxtaposition in the frame wall. A pair of inspection terminals are provided in an area of a top surface of the frame wall which surrounds the second recess. The inspection terminals are electrically connected to the excitation electrodes of the crystal blank. |
申请公布号 |
US8031013(B2) |
申请公布日期 |
2011.10.04 |
申请号 |
US20090370774 |
申请日期 |
2009.02.13 |
申请人 |
NIHON DEMPA KOGYO CO., LTD. |
发明人 |
TAKEUCHI TOSHIAKI;SUGAWARA KENICHI;MORIYA KOUICHI |
分类号 |
H03B1/00;H03B5/32 |
主分类号 |
H03B1/00 |
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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