发明名称 |
STRUCTURE FOR PIEZOELECTRIC DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To provide a crystal vibrator capable of cleanly washing both front surface and back surface of a crystal base plate arranged at a base by providing an annular frame whose upper and lower surfaces are opened and an upper lid and a lower lid for tightly closing the openings of the frame. SOLUTION: A ceramic base 9 in the form of the annular frame is provided with a conductive pad 4 for fixing and connecting the crystal base plate 2 and the crystal base plate 2 is fixed to the base 9 by a solder or conductive adhesive material. After performing washing in the state of fixing the crystal base plate 2 to the base 9, a ceramic cap 10 which is the upper lid of a box shape and the ceramic cap 11 which is the lower lid of the box shape are airtightly sealed by the sealing material 8 of glass for instance. Further, a conductive pattern 12 is formed from the side face to the back side of a package by the means of plating or the like. Washing liquid is easily stuck even at the time of washing the back surface of the crystal base plate 2 and a water stream at the time of washing-away is also sufficiently abutted equivalently to the front surface.
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申请公布号 |
JP2000031782(A) |
申请公布日期 |
2000.01.28 |
申请号 |
JP19980198654 |
申请日期 |
1998.07.14 |
申请人 |
TOYO COMMUN EQUIP CO LTD |
发明人 |
SAITO HIROAKI;ISHITA AKINORI |
分类号 |
H01L41/09;H03H9/10;H03H9/19;(IPC1-7):H03H9/19 |
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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