Patent ID: 7886956
Filing Date: 2011-02-15
Classification: H01L

Abstract:
1. A bonding apparatus comprising: a bonding stage for holding a bonding target on a surface thereof; a reference plane lying along the surface of the bonding stage between a surface of the bonding target farthest from the surface of the bonding stage and the surface on which the bonding target is placed; a bonding arm configured to be rotated about a rotation center that is arranged separately from the reference plane and to move a bonding tool attached at a tip end thereof toward and away from the bonding target obliquely with respect to the reference plane in the plane of rotation thereof; and optical position detection means having an optical axis included in a plane parallel to the plane of rotation of the bonding arm and arranged in a region on the opposite side of the rotation center with respect to a circular arc including a motion trajectory of a tip end of the bonding tool, the optical position detection means being configured to optically detect a bonding position on the bonding target, wherein an angle between the optical axis heading for the optical position detection means from the reference plane and the reference plane is equal to an angle between the motion trajectory of the tip end of the bonding tool and the reference plane.