Piezoelectric element


Application Number: 00108683
Application Date: 2000.05.15
Publication Number: 1274197
Publication Date: 2000.11.22
Priority Information: 1999/5/14 JP 134018/99
International: H03H9/15
Applicant(s) Name: Murata Mfg. Co. Ltd.
Address:
Inventor(s) Name: Sawai Hisahitoo;Hashimoto Hisayuki
Patent Agency Code: 31100
Patent Agent: shen zhaokun
Abstract A low-cost piezoelectric component which is efficiently manufactured and which provides excellent electrical characteristics, includes a piezoelectric element, a damping member, a supporting substrate for mounting the piezoelectric element, and a cover member. On a surface of the piezoelectric element, the damping member has a predetermined hardness and a vibrating electrode. In the case of a piezoelectric trap filter, a damping member is provided which has a Shore hardness of about 35 to about 80. In the case of a piezoelectric discriminator, the damping member has a Shore hardness of about 80 to about 100.