| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized surface acoustic wave device that seals an element using a very easy method. SOLUTION: In the surface acoustic wave device S1, in which a surface acoustic wave element 15 whose exiting electrode 2 is formed to a lower side of a piezoelectric substrate 1 is placed on a base substrate 9, the circumferential part of which an external electrode 12 is formed, a lead electrode 21 connected to the exciting electrode 2 of the surface acoustic wave element 15 and an external electrode 12 of the base substrate 9 are connected via connection conductor (7, 19), an insulating recessed frame 5 surrounding the excitation electrode 2 is placed in a way of covering part of the lead electrode 21 and a sealing member 8 is filled to a recessed part of a recessed frame 5 to seal the piezoelectric substrate 1 and the base substrate 9 air tightly.
|
