Patent ID: 7322093
Filing Date: 2008-01-29
Classification: H03H,Y10T

Abstract:
1. A method for producing a boundary acoustic wave device that includes a first medium, a second medium, a third medium and a fourth medium laminated in that order; and electrodes disposed at an interface between the first medium and the second medium, the method comprising the steps of: preparing a laminate including the first medium, the second medium, and the third medium formed in that order and electrodes disposed at the interface between the first medium and the second medium; adjusting at least one of a frequency and an acoustic velocity of a surface acoustic wave, a pseudo-boundary acoustic wave, or a boundary acoustic wave after the step of preparing the laminate; and after the adjusting step, forming the fourth medium, at least one of the acoustic velocity in the fourth medium and the material of the fourth medium being different from that of the third medium.