Surface acoustic wave device having salient pole and its manufacturing method

Application Number: 00108181
Application Date: 2000.04.28
Publication Number: 1271999
Publication Date: 2000.11.01
Priority Information: 1999/4/28 JP 122508/99; 1999/10/5 JP 284260/99
International: H03H9/145;H03H3/08
Applicant(s) Name: Murata Manufacturing Co. Ltd.
Inventor(s) Name: Taga Shigeto
Patent Agency Code: 31100
Patent Agent: shen zhaokun
Abstract An electronic element includes a substrate with electrode pads provided thereon. Intermediate electrodes include base electrodes on the bottom surface of the intermediate electrodes, and the bottom surface of the intermediate electrodes are disposed on the electrode pads. Bump electrodes are provided on the intermediate electrodes and include a metal having a melting point of about 450 DEG C. or more. Further, the base electrodes include a metallic material that can reduce orientation of the intermediate electrodes.