| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a surface acoustic wave device which can reduce deterioration of electric characteristics and the number of manufacturing processes.SOLUTION: A method for manufacturing a surface acoustic wave device comprises the steps of: forming an IDT electrode on an upper surface of a piezoelectric substrate; forming a frame body, enclosing a formation region where the IDT electrode is formed on the piezoelectric substrate; placing a film-like lid on an upper surface of the frame body and joining the lid to the frame body, thereby forming a protection cover that covers the formation region and provides a sealed space between the protection cover and the formation region. |
