The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2015
Filed:
Jan. 29, 2010
Jun-sik Hwang, Hwaseong-si, KR;
Dong-kyun Kim, Suwon-si, KR;
Seok-whan Chung, Suwon-si, KR;
Byung-gil Jeong, Anyang-si, KR;
Jun-sik Hwang, Hwaseong-si, KR;
Dong-kyun Kim, Suwon-si, KR;
Seok-whan Chung, Suwon-si, KR;
Byung-gil Jeong, Anyang-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
Provided are a piezoelectric micro speaker having a piston diaphragm and a method of manufacturing the piezoelectric micro speaker. The piezoelectric micro speaker includes: a substrate having a cavity formed therein; a vibrating membrane that is disposed on the substrate and covers at least a center part of the cavity; a piezoelectric actuator disposed on the vibrating membrane so as to vibrate the vibrating membrane; and a piston diaphragm that is disposed in the cavity and performs piston motion by vibration of the vibrating membrane. When the vibrating membrane vibrates by the piezoelectric actuator, the piston diaphragm, which is connected to the vibrating membrane through a piston bar, performs a piston motion in the cavity.