• DocumentCode
    2365993
  • Title

    Resonant frequency tuning of two dimensional PZT array using laser trimming

  • Author

    Ochoco, Jomar ; Sigurdsson, O.J. ; Lal, Amit

  • Author_Institution
    SonicMEMS Lab., Wisconsin Univ., Madison, WI, USA
  • Volume
    2
  • fYear
    2001
  • fDate
    2001
  • Firstpage
    1007
  • Abstract
    Two-dimensional PZT (lead-zirconate-titanate oxide) arrays can be used in microfluidics applications, but require identical resonance frequencies across the entire array for a phase control scheme. To tune the resonance frequencies, one can remove material from a pixel. Removing the nickel electrode increases the resonance frequency while removing PZT causes a reduction in the resonance frequency. The laser pulses excite the second harmonic, which can be used to tune the resonance frequency in-situ of a packaged microfluidics device
  • Keywords
    laser beam machining; lead compounds; microfluidics; piezoelectric transducers; ultrasonic transducer arrays; Ni; PZT; PbZrO3TiO3; laser trimming; nickel electrode; packaged microfluidics device; phase control; resonant frequency tuning; second harmonic excitation; two-dimensional PZT array; Laser tuning; Lead compounds; Microfluidics; Nickel; Optical arrays; Optical materials; Phase control; Phased arrays; Resonance; Resonant frequency;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Ultrasonics Symposium, 2001 IEEE
  • Conference_Location
    Atlanta, GA
  • Print_ISBN
    0-7803-7177-1
  • Type

    conf

  • DOI
    10.1109/ULTSYM.2001.991890
  • Filename
    991890