| 摘要 |
PROBLEM TO BE SOLVED: To provide a small sized surface acoustic wave device whose cover can easily be open without the use of a solvent to dissolve a resin adhesive. SOLUTION: A grooved-like recessed part 11 is provided along a connection face F between a support base 1 and a cover 10 at a lower end of two side circumferential faces of short-sides of the cover 10 opposite to each other in this device. Or the similar effect can be obtained in such a way that the cover 10 is arranged with a deviation on the connection face F in a direction in parallel with a rectangular side, one circumferential side of a short side of the cover 10 is projected outward from the side circumferential face of the support base 1, and the side circumferential face of the support base 1 at the opposite short side is projected outward from the side circumferential face of the upper cover 10. |
