| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surface mount crystal oscillator which has a reduced height dimension and thereby suppresses a change in oscillation frequency caused by stray capacitance. <P>SOLUTION: The surface mount crystal oscillator includes: a container body 1 of recessed laminated ceramic including an inner wall step composed of a bottom wall 6 and frame walls 7a, 7b; an IC chip 3 fixed on an inner bottom surface of the container body 1; and a crystal piece 2 which is fixed, at both sides of its one terminal portion, in the inner wall step. The bottom wall 6 of the container body 1 is only one layer. An IC terminal 12 is provided on a surface of the IC chip 3 opposite from a circuit formation surface 11 by a through-electrode, and the surface of the IC chip 3 opposite from the circuit formation surface 11 is fixed on the inner bottom surface of the container body 1. <P>COPYRIGHT: (C)2010,JPO&INPIT |
