Patent ID: 7044182

Claim:
A bonding apparatus including a positioning mechanism that performs bonding by positioning by said positioning mechanism an object of bonding, which is held in a bonding tool, in a determined position of a substrate disposed on a bonding execution surface, said positioning mechanism being comprised of: a first camera that measures a position of an object relating to the bonding tool by way of taking at least one of the bonding tool, the object of bonding held in the bonding tool and a measurement member held in the bonding tool as said object relating to the bonding tool; and a second camera that measures a position of the substrate; wherein said positioning mechanism is further comprised of: a target which has a position reference and which can be observed from both sides thereof; a correction camera which is disposed on one side of the target; a first measurement means in which the object relating to the bonding tool is disposed on another side of the target in a predetermined positional relationship, the target and the object relating to the bonding tool are separately or simultaneously imaged by the correction camera, and a first positional deviation between the position reference of the target and a reference position of the object relating to the bonding tool is determined from image data of the correction camera; a second measurement means in which the second camera is disposed on another side of the target in a predetermined positional relationship, the target is imaged by the second camera, and a second positional deviation between the position reference of the target and an imaging reference position of the second camera is determined from image data of the second camera; a third measurement means in which the first camera is caused to face the object relating to the bonding tool in a predetermined positional relationship, the object relating to the bonding tool is imaged by the first camera, and a third positional deviation between the reference position of the object relating to the bonding tool and an imaging reference position of the first camera is determined from image data of the first camera; and a calculating means which determines a positional deviation in bonding based upon the first positional deviation, second positional deviation and third positional deviation; and wherein the positional deviation in bonding is corrected based upon calculation results of the calculating means.