Patent ID: 8857487

Claim:
A room temperature bonding apparatus comprising: an angle adjustment mechanism configured to support a first sample stage holding a first substrate to a first stage so as to be able to change a direction of said first sample stage; a first driving device configured to drive said first stage in a first direction; a second driving device configured to drive a second sample stage holding a second substrate in a second direction not parallel to said first direction; and a carriage support table configured to support said second sample stage in said first direction when said second substrate and said first substrate are brought into press contact with each other, wherein said angle adjustment mechanism includes a ball flange configured to include a support portion fixed to said first sample stage and a flange portion formed in a spherical shape, a ball seat configured to be fixed to said first stage and be in contact with said flange portion at a ball seat surface, and a fixed flange configured to fix said ball flange to said ball seat by caulking said ball flange, wherein said ball seat is bonded to the fixed flange such that said ball seat surface is in close contact with said flange portion, wherein before angle adjustment is performed by said angle adjustment mechanism, said fixed flange is released, and after said angle adjustment is performed, said fixed flange is fastened to be rigidly fixed such that said flange portion does not relatively move with respect to said ball seat, wherein said fixed flange includes a first split ring, and a second split ring, wherein said first and second split rings are respectively formed as parts of a ring, and said first and second split rings are arranged such that an inside of the ring formed by the first and second split rings is in contact with said flange portion of said ball flange, and fastened to be bonded to the flange portion when said fixed flanged is fastened.