公开(公告)号：EP2883429A1

公开(公告)日：2015-06-17

申请号：EP13827230.7

申请日：2013-08-09

申请人： Dalhousie University

发明人： BEZANSON, Andre B. ,  ADAMSON, Robert B.A. ,  BROWN, Jeremy A.

IPC分类号： H05K3/32 ,  A61B8/12 ,  G01S15/89 ,  G01S7/52 ,  H05K3/42

CPC分类号： A61B8/12 ,  A61B8/4488 ,  H05K1/189 ,  H05K3/0052 ,  H05K3/403 ,  H05K2203/049 ,  Y10T29/49151 ,  Y10T29/49165

摘要： To address limitations of conventional transducers, a phased array transducer is provided with a form factor suitable o for packaging into, e.g., an endoscope. A method of manufacture of small packaging transducers is also provided, whereby the overall package size is reduced by electrically connecting signal wires to array electrodes at an angle approximately normal to the array surface, thus largely eliminating the bend radius requirements of conventional printed circuit boards or flex circuits.

公开(公告)号：EP2769421A1

公开(公告)日：2014-08-27

申请号：EP12841615.3

申请日：2012-10-18

申请人： Dalhousie University

发明人： GARLAND, Philip P ,  ADAMSON, Robert B.A. ,  BEZANSON, Andre B. ,  BROWN, Jeremy A.

IPC分类号： H01L41/253 ,  B06B1/06 ,  C30B19/12 ,  C30B33/04 ,  G01S7/52 ,  G02B6/132 ,  G10K11/18 ,  H01L41/18 ,  G01B9/02 ,  H01L41/047

CPC分类号： H01L41/18 ,  B06B1/0622 ,  C30B1/04 ,  C30B29/30 ,  C30B29/32 ,  C30B30/02 ,  C30B33/02 ,  C30B33/04 ,  G01S7/52 ,  G02B6/105 ,  G10K11/24 ,  H01L41/047 ,  H01L41/257 ,  H01L41/29 ,  Y10T428/24983

摘要： Among other things, piezoelectric materials and methods of their manufacture are described; particularly methods of forming regions of varying crystal structure within a relaxor piezoelectric substrate. Such methods may including heating the piezoelectric substrate above the transition temperature and below the Curie temperature such that a first phase transition occurs to a first crystal structure; rapidly cooling the piezoelectric substrate below the transition temperature at a cooling rate that is sufficiently high for the first crystal structure to persist; and applying an electric field through one or more selected regions of the piezoelectric substrate, such that within the one or more selected regions, a second phase transition occurs and results in a second crystal structure.

公开(公告)号：EP2883429B1

公开(公告)日：2019-05-15

申请号：EP13827230.7

申请日：2013-08-09

申请人： Dalhousie University

发明人： BEZANSON, Andre B. ,  ADAMSON, Robert B.A. ,  BROWN, Jeremy A.

IPC分类号： H05K3/32 ,  A61B8/12 ,  G01S15/89 ,  G01S7/52 ,  H05K3/42

公开(公告)号：EP2769421B1

公开(公告)日：2017-04-05

申请号：EP12841615.3

申请日：2012-10-18

申请人： Dalhousie University

发明人： GARLAND, Philip P ,  ADAMSON, Robert B.A. ,  BEZANSON, Andre B. ,  BROWN, Jeremy A.

IPC分类号： H01L41/257

CPC分类号： H01L41/18 ,  B06B1/0622 ,  C30B1/04 ,  C30B29/30 ,  C30B29/32 ,  C30B30/02 ,  C30B33/02 ,  C30B33/04 ,  G01S7/52 ,  G02B6/105 ,  G10K11/24 ,  H01L41/047 ,  H01L41/257 ,  H01L41/29 ,  Y10T428/24983