Patent ID: 7820468
Filing Date: 2010-10-26
Classification: H01L,H03H

Abstract:
1. A method for manufacturing a stack type surface acoustic wave package, comprising the steps of: a) preparing a lower wafer having input, output and IDT electrodes formed on an upper surface thereof, and a plurality of via-holes passing through the lower wafer; b) forming a metal dam to surround the input, output and IDT electrodes of the lower wafer; c) bonding an upper wafer having input, output and IDT electrodes formed thereon onto the lower wafer via a metallic bonding agent; d) forming separating grooves spaced a predetermined from each other and having a predetermined depth on the upper wafer; e) plating a metal layer of a predetermined thickness from the upper surface of the metal dam to cover the upper wafer; and f) dicing a central portion between the separating grooves plated with the metal layer.