In this case, the fluidity of the material can be controlled by varying the quantity of the hardener or the filler in the resin. [1046] Embodiment 19 [1047]FIG. 17 (a) is a sectional view showing the surface acoustic wave apparatus according to Embodiment 19. [1048] In this figure, a printed circuit board 1 is an insulating substrate such as ceramic, glass coated ceramic, glass-epoxy, or the like.