Patent ID: 7601613
Filing Date: 2009-10-13
Classification: H01L

Abstract:
1. A manufacturing method of a bond wafer comprising: a first ion implantation step of conducting first ion implantation on a bond wafer so that a concentration peak of ion implantation is located at a position with a predetermined depth in an ion implantation profile in a depth direction from the surface of the bond wafer; an additional function layer deposition step of depositing an additional function layer on a ion implantation surface side of the bond wafer; a second ion implantation step of conducting second implantation through the additional function layer with the first ion implantation position as a target from the additional function layer side of the bond wafer; a bonding step of bonding the additional function layer side of the bond wafer to a base wafer; and a delamination step of separating the bond wafer off at the position of the first ion implantation, wherein the additional function layer is made of one of a polysilicon layer and an amorphous silicon layer.