Filter functioning with acoustic waves

Details Filter functioning with acoustic waves Filter functioning with acoustic waves

H - Electricity

03

H

356/200, 333/58

H03H 9/64 (2006.01) H03H 3/08 (2006.01) H03H 9/02 (2006.01) H03H 9/145 (2006.01)

Patent

CA 1246166

ABSTRACT OF THE DISCLOSURE Digital structures of a surface wave filter are manufactured in a photolithographic method with a lift-off or with an etching technique. The surface wave filter comprises at least one resonator structure, this resonator structure having auxiliary coatings of the substrate surface allocated to it. These auxiliary coatings are continuations of existing, neighboring pads which compensate during an exposure step associated with manufacture of the digital structures.

499667

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