Patent ID: 8273457

Claim:
A circuit board comprising: a first circuit member having a first connecting terminal; and a second circuit member having a second connecting terminal, the first connecting terminal and the second connecting terminal being disposed facing each other, and an adhesive being put between the first connecting terminal and the second connecting terminal which are facing each other; and the first connecting terminal and the second connecting terminal disposed facing each other are electrically interconnected by pressing, wherein the adhesive comprises: one adhesive layer having a coefficient of thermal expansion at 30 to 100° C. of from 20 to 70 ppm/° C.; and another adhesive layer having a coefficient of thermal expansion at 30 to 100° C., of from 30 to 100 ppm/° C., which is larger than that of the one adhesive layer; the adhesive being disposed in such a way that the one adhesive layer is applied on the side of one of said circuit members which has a higher modulus of elasticity than the other, and the another adhesive layer is applied on the side of the other circuit member having a lower modulus of elasticity.