| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric vibration piece which has reduced manufacture cost in a frequency adjustment process by simplifying the structure of a probing terminal or an operation for bringing the probing terminal into contact. SOLUTION: A crystal vibration piece 10 as one example of the piezoelectric vibration piece includes a piezoelectric vibration part 11, a frame part 12 surrounding the periphery of the piezoelectric vibration part 11, connection parts 15a and 15b connecting the piezoelectric vibration part 11 and the frame part 12, a first excitation electrode 13 provided on an upper surface 11a which is one surface of the piezoelectric vibration part 11, a second excitation electrode 14 provided on a lower surface 11b which is the other surface of the piezoelectric vibration part 11, a first connection electrode 23 electrically connected with the first excitation electrode 13, and a second connection electrode 33 electrically connected with the second excitation electrode 14. The first connection electrode 23 is extended further to the side face 15e of the connection part 15a, the other surface (lower surface) 15d of the connection part 15a and the other surface (lower surface) 12d of the inner side part 12a of the frame part 12. COPYRIGHT: (C)2010,JPO&INPIT |
