SURFACE ACOUSTIC WAVE DEVICE, ESPECIALLY ARRANGING DIFFERENTLY PLURAL IDTS ON THE PARALLELOGRAM-SHAPED

摘要

PURPOSE: A surface acoustic wave device is provided, which allows a user to arrange IDTs more than finger numbers on the same size die by arranging differently plural IDTs on the parallelogram-shaped. CONSTITUTION: A surface acoustic wave device includes a die, a top IDT(Inter Digital Transducer), and a bottom IDT. The die(11) is formed with a shape of parallelogram. The top IDT(12) is formed on one side of the die. The top IDT is arranged on a center part of an upper side of the die. The bottom IDT(14) is arranged on a center part of a bottom side of the top IDT. The bottom IDT is arranged cornerwise to the top IDT.