- 专利标题: Multi-layer ceramic acoustic transducer
-
申请号: US11340411申请日: 2006-01-26
-
公开(公告)号: US20060117551A1公开(公告)日: 2006-06-08
- 发明人: Charles Baumgartner , Robert Lewandowski , George Sogoian
- 申请人: Charles Baumgartner , Robert Lewandowski , George Sogoian
- 主分类号: H01L41/18
- IPC分类号: H01L41/18
摘要:
A method for manufacturing a multi-layer acoustic transducer with reduced total electrical impedance. The method is based on the bonding of two piezoelectric ceramic layers with confronting metallized surfaces to a thin electrical conductor, then electrically connecting the top and bottom surfaces to form a wrap-around electrode while a center conductor forms a second electrode. The total electrical impedance of a two-layer ceramic stack comprised of piezoelectric layers connected in this manner is one-fourth that of a solid ceramic element of the same size. This provides for better matching of the acoustic stack impedance to that of the electrical cable, increased penetration depth for imaging within the body, and improved acoustic element sensitivity.
公开/授权文献
- US07148608B2 Multi-layer ceramic acoustic transducer 公开/授权日:2006-12-12
信息查询
IPC分类: