Patent ID: 7227293
Filing Date: 2007-06-05
Classification: H03H

Abstract:
1. A surface acoustic wave device comprising: a piezoelectric substrate; an input inter digital transducer including a first digital structure and a second digital structure formed on said piezoelectric substrate, wherein said first and second digital structures are interlaced with and electrically independent from each other; an output inter digital transducer including a third digital structure and a fourth digital structure formed on said piezoelectric substrate, wherein said third and fourth digital structures interlace with and are electrically independent from each other; an input sacrificial electrode having a first electrode and a second electrode formed on said piezoelectric substrate, wherein said first and second electrodes are electrically independent from each other, and said first electrode is electrically coupled to said first digital structure, and said second electrode is electrically coupled to said second digital structure; and an output sacrificial electrode having a third electrode and a fourth electrode formed on said piezoelectric substrate, wherein said third and fourth electrodes are electrically independent from each other, and said third electrode is electrically coupled to said third digital structure, and said fourth electrode is electrically coupled to said fourth digital structure; wherein said first, second, third, and fourth electrodes include fractal configurations.