METHOD FOR MANUFACTURING CRYSTAL OSCILLATOR, AND CRYSTAL OSCILLATOR

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a highly productive crystal oscillator by preventing the occurrence of any crack in a crystal wafer.

SOLUTION: This method for manufacturing a crystal oscillator includes a first process for forming a plurality of groove sections for forming a cross-sectional recessed crystal piece which is configured of an oscillation region whose plane is rectangular, and whose thickness is small and an outer-peripheral region arranged in the outer periphery of the oscillation region with thickness which is larger than that of the oscillation region, and a second process for forming a plurality of crystal pieces whose planes are rectangular by dividing the crystal wafer, wherein the four corner sections of the internal walls of the groove sections are made to obliquely cross the two orthogonal sides of the outer peripheral region.

COPYRIGHT: (C)2006,JPO&NCIPI