US 12,337,348 B2
Ultrasonic transducer
Yi-Ting Su, Hsinchu (TW); Lung Chen, Taipei (TW); Wei-Jen Wu, Hsinchu County (TW); Sheng-Yen Tseng, Taoyuan (TW); and Ming-Chu Chang, Hsinchu County (TW)
Assigned to Unictron Technologies Corporation, Hsin-Chu (TW)
Filed by Unictron Technologies Corporation, Hsin-Chu (TW)
Filed on Jan. 27, 2022, as Appl. No. 17/585,584.
Claims priority of application No. 110144205 (TW), filed on Nov. 26, 2021.
Prior Publication US 2023/0166294 A1, Jun. 1, 2023
Int. Cl. B06B 1/06 (2006.01)
CPC B06B 1/0685 (2013.01) [B06B 1/067 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An ultrasonic transducer, comprising:
a piezoceramic element with a first surface and a second surface opposite to each other through the piezoceramic element and a lateral surface connecting with the first surface and the second surface;
an acoustic matching layer with a third surface and a fourth surface opposite to each other through the acoustic matching layer, and the third surface connects with the second surface of the piezoceramic element;
a first damping element with a fifth surface and a sixth surface opposite to each other through the first damping element, and the sixth surface connects with the first surface of the piezoceramic element; and
a second damping element encapsulating the first damping element and the lateral surface of the piezoceramic element, wherein the second damping element directly contacts an entire lateral surface of the first damping element and the entire lateral surface of the piezoceramic element.