Global Patent Index - EP 1274518 B1

EP 1274518 B1 20100421 - UNIDIRECTIONAL ACOUSTIC PROBE AND METHOD FOR MAKING SAME

Title (en)

UNIDIRECTIONAL ACOUSTIC PROBE AND METHOD FOR MAKING SAME

Title (de)

AKUSTISCHER RICHTWANDLER UND HERSTELLUNGSVERFAHREN

Title (fr)

SONDE ACOUSTIQUE UNIDIRECTIONNELLE ET PROCEDE DE FABRICATION

Publication

EP 1274518 B1 (FR)

Application

EP 01915456 A

Priority

  • FR 0100711 W
  • FR 0003253 A

Abstract (en)

[origin: WO0168273A1] The invention concerns unidirectional acoustic probe, comprising an efficient interconnection array, and a method for making such a probe. Said unidirectional probe comprises linear piezoelectric transducers (TPi) at the surface of a dielectric film (CIS), said dielectric film including electrical means for connecting said piezoelectric transducers to a control device. The invention is characterised in that the connection means comprise primary connection pads (TPPCi), opposite the piezoelectric transducers; secondary connection pads (SPSCi), offset relative to the piezoelectric transducers, so that said transducers can be connected to the control device; strip conductors (PI) connecting the primary connection pads (TPPCi) to the secondary connection pads (SPSCi), said strip conductors (PI) being arranged along a direction Dx perpendicular to the direction Dy defined by the longitudinal axis of the piezoelectric transducers. The advantage of such a probe lies in the fact that during its configuration which consists in positioning the probe on a curved support absorbing the acoustic waves, the interconnection array defined is more robust than what is known in prior art.

IPC 8 full level

B06B 1/06 (2006.01); H04R 17/00 (2006.01); H01L 41/09 (2006.01); H01L 41/22 (2006.01); H02N 2/00 (2006.01); H04R 31/00 (2006.01)

CPC (source: EP US)

B06B 1/0622 (2013.01 - EP); Y10T 29/42 (2015.01 - EP US); Y10T 29/49005 (2015.01 - EP US); Y10T 29/49128 (2015.01 - EP US)

Designated contracting state (EPC)

FR IT NL

DOCDB simple family (publication)

FR 2806332 A1 20010921; FR 2806332 B1 20020614; CN 1234468 C 20060104; CN 1418135 A 20030514; EP 1274518 A1 20030115; EP 1274518 B1 20100421; JP 2003527013 A 20030909; KR 100721738 B1 20070525; KR 20020092980 A 20021212; US 2003011277 A1 20030116; US 6954024 B2 20051011; WO 0168273 A1 20010920

DOCDB simple family (application)

FR 0003253 A 20000314; CN 01806538 A 20010309; EP 01915456 A 20010309; FR 0100711 W 20010309; JP 2001566819 A 20010309; KR 20027011903 A 20020911; US 20443202 A 20020830