PIEZOELECTRIC VIBRATOR HOUSING PACKAGE AND PIEZOELECTRIC DEVICE

• Main Author: NAKAMOTO KOTARO
• Format: Patent
• Language: English
• Published: 16.06.2005
• Edition: 7
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

PROBLEM TO BE SOLVED: To provide a piezoelectric vibrator housing package capable of electrically and mechanically excellently connecting an electrode of a piezoelectric vibrator to an upper metallize layer with high positional accuracy even if the piezoelectric vibrator housing package becomes more small-sized and thinner, and a highly reliable piezoelectric device using this piezoelectric vibrator housing package. SOLUTION: The piezoelectric vibrator housing package comprises an insulating substrate 3 including a recess 2 for housing a piezoelectric vibrator 1 on its upper principal surface, and a step 6 which is formed in a corner on the base of the recess 2 and composed of an upper metallize layer 4 and a lower metallize layer 5 and in which a terminal portion of a lower surface of the planar piezoelectric vibrator 1 is mounted on an upper surface of the upper metallize layer 4, the upper metallize layer 4 being formed while partially covering the lower metallize layer 5 in a plane view and being expanded outward from the lower metallize layer 5. COPYRIGHT: (C)2005,JPO&NCIPI