| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a crystal device in which sealer filled into a through-hole is melted and spread to all the corners of the through-hole to maintain airtightness inside a package. <P>SOLUTION: A crystal device 100 comprises a crystal frame 50 including a crystal vibration chip 30 with an electrode pattern and an outer frame 51 supporting the crystal vibration chip, connecting electrodes 42 and 44 formed on a first face, and external electrodes 45 and 46 formed on a second face opposite to the first face and conducted to the connecting electrode. In addition, the crystal device 100 comprises a crystal base 40 of which the first face couples to the crystal frame 50, and a crystal lid 20 coupled to the crystal frame 50 on a face opposite to the crystal base 40. Through electrodes 41 and 43 for conducting the connecting electrodes 42 and 44 to the external electrodes 45 and 46 have a non-circular section. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
