Elastic Boundary wave device and method for mfg. same

Elastic Boundary wave device and method for mfg. same

  • CN 100,347,953 C
  • Filed: 05/06/1998
  • Issued: 11/07/2007
  • Est. Priority Date: 05/08/1997
  • Status: Active Grant
First Claim
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1. acoustic boundary wave device is characterized in that comprising:

  • First matrix of piezoelectricity;

    Be formed at a plurality of electrodes of the described first matrix interarea, excitation sound wave;

    Be formed on the described first matrix interarea to cover described a plurality of electrode fully and to keep the dielectric film of smooth surface;

    AndDirectly be bonded in second matrix on the described dielectric film surface, that form by silica-base material.

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