发明名称 |
PIEZOELECTRIC MICRO SPEAKER INCLUDING ANNULAR RING-SHAPED VIBRATING MEMBRANES AND METHOD OF MANUFACTURING THE PIEZOELECTRIC MICRO SPEAKER |
摘要 |
A piezoelectric micro speaker and a method of manufacturing the same are provided. The piezoelectric micro speaker includes a substrate having a cavity formed therein and a diaphragm that is disposed on the substrate that overlaps the cavity. A plurality of first vibrating membranes having concentric annular ring shapes are disposed in a first region of the diaphragm corresponding to a center of the cavity. A second vibrating membrane including a different material from that of the first vibrating membranes is formed in the second region of the diaphragm corresponding to an edge of the cavity. A piezoelectric actuator for vibrating the first vibrating membranes is formed on and between the concentric annular rings of the first vibrating membranes.
|
申请公布号 |
US2011064250(A1) |
申请公布日期 |
2011.03.17 |
申请号 |
US20100704029 |
申请日期 |
2010.02.11 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JEONG BYUNG-GIL;KIM DONG-KYUN;CHUNG SEOK-WHAN;HWANG JUN-SIK |
分类号 |
H04R17/00;H04R25/00;H04R31/00 |
主分类号 |
H04R17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|