Patent ID: 8042593

Claim:
A semiconductor chip bonding apparatus, comprising: a bond head unit to apply a bonding load; a chip holding unit to hold a semiconductor chip to be attached to a substrate; a balance control unit to transfer the bonding load of the bond head unit to the chip holding unit and to move the chip holding unit so that the chip holding unit is balanced to the substrate, the balance control unit having a load transfer member that is fixed with respect to the bond head unit and a connecting member connected to the chip holding unit to move the chip holding unit with respect to the bond head unit; and an elastic member to bias the connecting member away from the bond head unit, wherein the load transfer member is connected to the bond head unit and moves upward and downward to transfer the bonding load to the chip holding unit, the connecting member connects the load transfer member to the chip holding unit such that the chip holding unit rotates relative to the load transfer member according to an upward and downward movement of the load transfer member, and wherein the load transfer member comprises: an axis member connected to the bond head unit to move upward and downward; and a pressure member connected to a lower portion of the axis member and to be in contact with the chip holding unit to apply the bonding load according to an upward and downward movement of the axis member.