EP 1951445 A2 20080806 - ARRAYED ULTRASONIC TRANSDUCER
Title (en)
ARRAYED ULTRASONIC TRANSDUCER
Title (de)
ULTRASCHALLWANDLERANORDNUNG
Title (fr)
TRANSDUCTEUR ULTRASONIQUE EN RESEAU
Publication
Application
Priority
- US 2006042889 W 20061102
- US 73309105 P 20051102
Abstract (en)
[origin: WO2007067282A2] 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 an upper unpoled piezoelectric layer, an underlying lower poled 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 through the upper piezoelectric layer and into the lower piezoelectric layer and a first predetermined length in a direction substantially parallel to the axis.
IPC 8 full level
B06B 1/06 (2006.01)
CPC (source: EP)
B06B 1/064 (2013.01)
Citation (search report)
See references of WO 2007067282A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007067282 A2 20070614; WO 2007067282 A3 20070816; WO 2007067282 A8 20081002; CA 2627927 A1 20070614; CN 101405090 A 20090408; EP 1951445 A2 20080806; JP 2009515439 A 20090409; JP 4807761 B2 20111102
DOCDB simple family (application)
US 2006042889 W 20061102; CA 2627927 A 20061102; CN 200680050188 A 20061102; EP 06827415 A 20061102; JP 2008539043 A 20061102