Patent ID: 8330332
Filing Date: 2012-12-11
Classification: H01L,H04R,Y10T

Abstract:
1. An ultrasound transducer comprising: an application specific integrated circuit (ASIC) having a plurality of contact pads on a surface of the ASIC that are separated from adjacent ones thereof by a first pitch; an array of acoustic elements separated from adjacent ones thereof by a second pitch; and a pitch independent interposer featuring a plurality of conductive elements, wherein the plurality of conductive elements are separated from adjacent ones thereof by a third pitch different from both the first pitch and the second pitch, the pitch independent interposer being electrically coupled (i) on a first side to the ASIC via a first subset of the plurality of conductive elements and (ii) on a second side to the array of acoustic elements via a second subset of the plurality of conductive elements, wherein one or more of the plurality of conductive elements electrically couples a contact pad of the ASIC with a corresponding acoustic element of the array of acoustic elements, further comprising: a rerouting flex disposed in-between the ASIC and the pitch independent interposer, the rerouting flex configured for providing signal rerouting to accommodate a pitch change between the contact pads on the ASIC and the acoustic elements, wherein the rerouting flex includes pads on a lower surface thereof that are pitch matched to the contact pads of the ASIC of the first pitch and contact pads on an upper surface thereof that are pitch matched to the corresponding acoustic elements of the second pitch.