| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a piezoelectric oscillator having excellent oscillation characteristics, a piezoelectric actuator, an electronic device, and a manufacturing method for the piezoelectric oscillator. <P>SOLUTION: The piezoelectric oscillator 30 has piezoelectric elements 31, 32 and a reinforcing plate 33 on which the piezoelectric elements 31, 32 are laminated. The reinforcing plate 33 has a reinforcing-plate body 331 having the substantially same shape in a plane view as that of the piezoelectric elements 31, 32 and on which the piezoelectric elements 31, 32 are laminated and a fixing part 333 for fixing the reinforcing plate 33 at a prescribed position. The reinforcing-plate body 331 and the piezoelectric elements 31, 32 are formed so as to have the substantially rectangular shape in a plane view, and respectively have first side faces 311, 321, and 3311 and second side faces 312, 322, and 3312 along each long side, and third side faces 313, 323, and 3313 and fourth side faces 314, 324, and 3314 along each short side. The fixing part 333 protrudes to the outside from the piezoelectric elements 31, 32 only from the first side face 3311 while each of the second side faces 312, 322, and 3312 is aligned in a plane view. <P>COPYRIGHT: (C)2011,JPO&INPIT |
