Patent ID: 7405500

Claim:
A bonding apparatus comprising a mounting base and a bonding motor provided on said mounting base and has a movable element and a motor main body, wherein said motor main body is movable in an opposite direction from said movable element when said movable element is driven, so that a reaction force applied to said mounting base as a result of driving of said movable element is canceled, said bonding apparatus further comprising: motor guides which guide movement of said motor main body, and a plurality of laminated bodies which are disposed between said motor main body and said motor guides, wherein each of said plurality of laminated bodies comprises flat rigid plates and viscoelastic flat rubber plates having spring elements and damping elements, so that said flat rigid plates and viscoelastic flat rubber plates are alternately disposed and stacked in a plurality of stages with mutually facing surfaces of said plates fastened to each other; with reference to an external force applied between one surface and another surface of said laminated body, rigidity in a direction perpendicular to laminated surfaces of said flat rigid plates and viscoelastic flat rubber plates is set to be greater than rigidity in a direction parallel to the laminated surfaces of said flat rigid plates and viscoelastic flat rubber plates, thus having a recovery force and a damping force based on viscoelasticity thereof; and said laminated surfaces are disposed parallel to a direction of movement of said motor main body, and one surface of each one of said laminated bodies is attached to said motor main body while another surface thereof is attached to each one of said motor guides.