Patent ID: 8822307

Claim:
A semiconductor manufacturing apparatus configured to bond a first semiconductor substrate and a second semiconductor substrate, the bonding being formed by propagating a bond front from a bonding initiation point to the periphery, the bonding initiation point being formed by bringing bonding surfaces of the first and second semiconductor substrates in contact at a single point, the semiconductor manufacturing apparatus comprising: a stage configured to support outer periphery portions of the first semiconductor substrate from below; a substrate supporter configured to hold the back of the second semiconductor substrate such that the bonding surface of the second semiconductor substrate faces to the bonding surface of the first semiconductor substrate supported by the stage; first and second pushers configured to be capable of coming into contact with the first and second semiconductor substrates, the first and second pushers being coaxially disposed with respect to a normal direction of the opposed bonding surfaces, the first and second pushers sandwiching the first and second semiconductor substrates and being disposed movably along the normal direction; a controller configured to form the bonding initiation point between the first and second semiconductor substrates, the bonding initiation point being formed by pressing a single point of an opposite side of the bonding surface with respect to the second semiconductor substrate with the second pusher; a bladder made of a deformable film-shaped member and disposed inside of the stage, fluid being filled inside of the bladder; and an adjuster configured to adjust at least one of temperature and pressure of the fluid, and supply the adjusted fluid into the inside of the bladder, wherein the bladder is configured to support a center portion of the first semiconductor substrate, the adjuster supplying the bladder with the fluid.