PROBLEM TO BE SOLVED: To provide a method for manufacturing a composite piezoelectric body, capable of suppressing degradation in a polarization structure of piezoelectric materials, such as ceramics, forming highly reliable electrodes at low cost, and reducing surface roughness of the composite piezoelectric body, to provide a method for manufacturing an ultrasonic probe, and to provide the composite piezoelectric body, the ultrasonic probe, and an ultrasonic image diagnosis apparatus.SOLUTION: A method for manufacturing a composite piezoelectric body comprises the steps of: forming the composite piezoelectric body by filling non-conductive polymers between a plurality of piezoelectric materials arranged in an array at a predetermined interval and polishing one surface of the composite piezoelectric body, where at least the piezoelectric materials and the polymers of the composite piezoelectric body are exposed, by using a polishing film formed of a base film where abrasive particles are applied.COPYRIGHT: (C)2014,JPO&INPIT【課題】セラミック等の圧電材料の分極構造の劣化を抑制するとともに、低コストで信頼性の高い電極形成が可能で、複合圧電体の表面粗さを小さくすることができる複合圧電体の製造方法、超音波探触子の製造方法、複合圧電体、超音波探触子及び超音波画像診断装置を提供する。【解決手段】複合圧電体形成工程では、アレイ状に所定間隔にて配列された複数の圧電材料の間に非導電性の重合体を充填して複合圧電体を形成する。研磨工程では、基材フィルムに研磨剤粒子が塗布された研磨フィルムを用いて複合圧電体の少なくとも圧電材料及び重合体が露出する1面を研磨する。【選択図】図3
