Patent ID: 7721411
Filing Date: 2010-05-25
Classification: H03H,Y10T

Abstract:
1. A method of manufacturing an acoustic wave device comprising: forming a conductive pattern on a wafer made of a piezoelectric substrate having an acoustic wave element, the conductive pattern including a first conductive pattern, a second conductive pattern, a third conductive pattern and a peripheral pattern, the first conductive pattern being continuously formed on a cutting region for individuating the wafer, the second conductive pattern being formed on an electrode region where a plated electrode is to be formed and being connected to the acoustic wave element, the third conductive pattern connecting the first conductive pattern and the second conductive pattern; the peripheral pattern being formed on a peripheral region of the wafer and being connected to the first conductive pattern; forming an insulating layer on the wafer so as to have an opening on the second conductive pattern; forming the plated electrode on the second conductive pattern by providing an electrical current to the second conductive pattern only via the peripheral pattern, the first conductive pattern and the third conductive pattern; and cutting off and individuating the wafer along the cutting region.