PIEZOELECTRIC VIBRATION COMPONENT

摘要

A piezoelectric vibration component that includes a sealed space formed between first and second package members, and a piezoelectric vibrator is bonded to the first package member with first and second conductive adhesive portions. In the piezoelectric vibrator, a first vibration electrode and a first extended electrode are formed on a first surface of a piezoelectric substrate, and a second vibration electrode and a second extended electrode are formed on a second surface of the piezoelectric substrate. At least the second extended electrode provided on the second principal surface has a higher bonding strength with respect to the conductive adhesive than that of the electrodes on the first principal surface. The electrode patterns on the first and second principal surfaces differ from each other so that the first surface and the second surface can be distinguished from each other.

主权项

1. A piezoelectric vibration device comprising:
a package member having a surface with first and second connection electrodes disposed thereon;
a piezoelectric: vibrator including:
a piezoelectric substrate having first and second surfaces that oppose each other,a first vibration electrode disposed on the first surface of the piezoelectric substrate,a first extended electrode disposed on the first surface of the piezoelectric substrate and that is electrically connected to the first vibration electrode,a second vibration electrode disposed on the second surface of the piezoelectric substrate, anda second extended electrode disposed on the second surface of the piezoelectric substrate and that is electrically connected to the second vibration electrode; a first conductive adhesive member that secures the piezoelectric vibrator to the package member and that electrically connects the first connection electrode to the first extended electrode; and a second conductive adhesive member that secures the piezoelectric vibrator to the package member and that electrically connects the second connection electrode to the second extended electrode, wherein the first vibration electrode and the first extended electrode on the first surface form and first electrode pattern, and the second vibration electrode and the second extended electrode on the second surface form a second electrode pattern, and wherein the first and second electrode patterns differ from each other from a plan view of the first and second surfaces of the piezoelectric vibrator.