基本信息:
- 专利标题: ARRAYED ULTRASONIC TRANSDUCER
- 专利标题(中):阵列超声波传感器
- 申请号:PCT/US2005013473 申请日:2005-04-20
- 公开(公告)号:WO2005104210A3 公开(公告)日:2006-12-14
- 发明人: LUKACS MARC , FOSTER STUART F
- 申请人: VISUALSONICS INC , SUNNYBROOK & WOMENS COLLEGE , LUKACS MARC , FOSTER STUART F
- 专利权人: VISUALSONICS INC,SUNNYBROOK & WOMENS COLLEGE,LUKACS MARC,FOSTER STUART F
- 当前专利权人: VISUALSONICS INC,SUNNYBROOK & WOMENS COLLEGE,LUKACS MARC,FOSTER STUART F
- 优先权: US56378404 2004-04-20
- 主分类号: H01L41/04
- IPC分类号: H01L41/04 ; B06B1/06 ; H01L21/44 ; H01L21/48 ; H01L41/083
摘要:
An ultrasonic transducer comprises a stack having a first face, an opposed second face and a longitudinal axis extending therebetween. The stack comprises a plurality of layers, each layer having a top surface and an opposed bottom surface, wherein the plurality of layers of the stack comprises a piezoelectric layer and a dielectric layer. The dielectric layer is connected to the piezoelectric layer and defines an opening extending a second predetermined length in a direction substantially parallel to the axis of the stack. A plurality of first kerf slots are defined therein the stack, each first kerf slot extending a predetermined depth therein the stack and a first predetermined length in a direction substantially parallel to the axis. The first predetermined length of each first kerf slot is at least as long as the second predetermined length of the opening defined by the dielectric layer and is shorter than the longitudinal distance between the first face and the opposed second face of the stack in a lengthwise direction substantially parallel to the axis.
摘要(中):
超声波换能器包括具有第一面,相对的第二面和在它们之间延伸的纵轴的叠层。 所述堆叠包括多个层,每个层具有顶表面和相对的底表面,其中堆叠的多个层包括压电层和电介质层。 电介质层连接到压电层并且限定了在基本上平行于堆叠的轴线的方向上延伸第二预定长度的开口。 在其中限定了多个第一切口槽,每个第一切口槽在堆叠中延伸预定深度,并且在基本上平行于轴线的方向上延伸第一预定长度。 每个第一切口槽的第一预定长度至少等于由电介质层限定的开口的第二预定长度,并且短于堆叠的第一面和相对的第二面之间在纵向上的纵向距离 基本上平行于轴线。
IPC结构图谱:
H | 电学 |
--H04 | 电通信技术 |
----H04R | 扬声器、送话器、唱机拾音器或类似的传感器 |
------H01L41/02 | .零部件 |
--------H01L41/04 | ..压电器件的或电致伸缩器件的 |