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Tsai et al., 2009 - Google Patents

The improvement of dynamic characteristics of ultrasonic therapeutic transducers using fine-grain PZT-based piezoceramics

Tsai et al., 2009

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Document ID
5339386653646010875
Author
Tsai C
Chiang T
Chu S
Publication year
Publication venue
IEEE transactions on ultrasonics, ferroelectrics, and frequency control

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Snippet

Optimizing the dynamic resonant characteristics of ultrasonic therapeutic transducers depends most importantly on fine-grain piezoceramics with good resonant properties. In this paper, we prepare and compare modified Pb/. 99 Sr 0.01 [0.03 (Mn 1/3 Nb 2/3)-0.97 (Zr 0.51 …
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Classifications

    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L41/00—Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L41/16—Selection of materials
    • H01L41/18—Selection of materials for piezo-electric or electrostrictive devices, e.g. bulk piezo-electric crystals
    • H01L41/187—Ceramic compositions, i.e. synthetic inorganic polycrystalline compounds incl. epitaxial, quasi-crystalline materials
    • H01L41/1875—Lead based oxides
    • H01L41/1876—Lead zirconate titanate based
    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L41/00—Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L41/08—Piezo-electric or electrostrictive devices
    • H01L41/09—Piezo-electric or electrostrictive devices with electrical input and mechanical output, e.g. actuators, vibrators
    • H01L41/0926—Piezo-electric or electrostrictive devices with electrical input and mechanical output, e.g. actuators, vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L41/00—Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L41/02—Details
    • H01L41/04—Details of piezo-electric or electrostrictive devices
    • H01L41/047—Electrodes or electrical connection arrangements
    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L41/00—Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L41/22—Processes or apparatus specially adapted for the assembly, manufacture or treatment of piezo-electric or electrostrictive devices or of parts thereof
    • H01L41/33—Shaping or machining of piezo-electric or electrostrictive bodies
    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L41/00—Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L41/22—Processes or apparatus specially adapted for the assembly, manufacture or treatment of piezo-electric or electrostrictive devices or of parts thereof
    • H01L41/31—Applying piezo-electric or electrostrictive parts or bodies onto an electrical element or another base
    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L41/00—Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L41/22—Processes or apparatus specially adapted for the assembly, manufacture or treatment of piezo-electric or electrostrictive devices or of parts thereof
    • H01L41/35—Forming piezo-electric or electrostrictive materials
    • H01L41/39—Inorganic materials
    • H01L41/43—Inorganic materials by sintering

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