Two-dimensional array transducers using thick film connection technology.

Two-dimensional array transducers using thick film connection technology. Research Abstract Details 

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Two-dimensional array transducers using thick film connection technology. Abstract Text:

S W Smith,E D Light,

A connection technique for two-dimensional array ultrasound transducers developed by combining a conductive lambda/4 mismatching layer with a multi-layer ceramic (MLC) connector using thick-film microelectronic technology is described. The connector consists of 20 thick films of alumina and screen printed metallization with customized interconnections between the layers called vias. Ten ground layers are interleaved between ten signal layers to reduce elecrical crosstalk. A lambda/4 mismatching layer of conductive epoxy is bonded between each PZT element and the silver metal pad of the MLC connector to provide an effective low impedance backing. In the current configuration, a 16x16 transducer array, 0.6 mm element spacing, is expanded to a 16x16 grid of connector pins at a standard spacing of 2.5 mm. Vector impedance, sensitivity, bandwidth, interelement uniformity, and crosstalk are all in good agreement with arrays of conventional fabrication. However, an array with MLC connector can be fabricated more quickly independent of the number of elements.

Two-dimensional array transducers using thick film connection technology. Publishing Authors By Initials

SW Smith,ED Light,

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Two-dimensional array transducers using thick film connection technology. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: IEEE transactions on ultrasonics, ferroelectrics,

VOLUME: 40

Page Numbers: 727-34

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ISSN: 0885-3010

DAY: 11

MONTH: 02

YEAR: 1993

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LANGUAGE: eng

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Grant and Affiliation Information for Two-dimensional array transducers using thick film connection technology.

AFFILIATION: Dept. of Biomed. Eng., Duke Univ., Durham, NC.

Country: United States

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MEDLINETA: IEEE Trans Ultrason Ferroelect

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