| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a highly-productive, inexpensive and miniaturized surface acoustic device. <P>SOLUTION: In the surface acoustic wave device, a sheet 5 for reducing the height of a vibration space part 9 is stuck to the surface of an insulating substrate 1 in the vibration space part 9 in a state opposed to combteeth part 7a and the vibration space part 9 formed between the insulating substrate 1 and a piezoelectric substrate 6 is sealed in a state that the piezoelectric substrate 6 is covered with a sealing resin part 10. Thereby the height of the vibration space part 9 can be reduced by the sheet 5, the intrusion of the sealing resin part 10 into the vibration space part 9 can be suppressed, a highly-operable and inexpensive sheet 5 can be obtained because the sheet 5 is simply stuck to the insulating substrate 1, and a laterally small-sized sheet 5 can be obtained because the sheet 5 is arranged oppositely to the combteeth part 7a. <P>COPYRIGHT: (C)2007,JPO&INPIT |
