Patent ID: 8332995

Claim:
A piezoelectric component manufacturing method comprising: a step for preparing an integrated piezoelectric substrate, and forming comb-shaped electrodes and wiring electrodes having element wiring connecting to the comb-shape electrodes on a primary surface of the piezoelectric substrate, by sputtering or vapor deposition; a step for forming an SiO 2 layer by coating an entire primary surface of said piezoelectric substrate on which said comb-shaped electrodes and said wiring electrodes are formed; a step for performing a characteristics inspection on the piezoelectric substrate and marking defective piezoelectric elements; a step for coating said SiO 2 layer surface, excluding at least said comb-shaped electrodes and said wiring electrodes, with photosensitive resin, and then exposing and developing to form an insulating layer; a step for vapor-depositing a metal layer serving as an adhesion layer and an electrode layer on a surface of said insulating layer, and removing said metal layer adhered to resist by an organic solvent when removing the resist, to form a rewiring layer; a step for coating said rewiring layer, excluding said comb-shaped electrodes and said wiring electrode forming section, with photosensitive resin, and then exposing and developing to form a photosensitive resin layer which forms outer wall sections; a step for affixing a photosensitive resin film to a top end surface of said photosensitive resin layer, and then exposing and developing to form ceiling sections, and at the same time removing said photosensitive resin layer and said photosensitive film at the region where electrode posts are to be formed, to form holes; a step for forming electrode posts in the holes by electroplating; and a step for dicing, after said electroplating is completed, said piezoelectric substrate along scribe lines to obtain individual piezoelectric components.