Patent ID: 9018031
Filing Date: 2015-04-28
Classification: H01L,Y10S

Abstract:
1. A manufacturing method of a solid-state image sensor comprising: forming a first single crystal silicon layer on a principal surface of a first wafer by epitaxial growth; forming a silicon oxide layer on the first single crystal silicon layer; forming a defect layer inside the first single crystal silicon layer by ion implantation; bonding a second wafer to the silicon oxide layer on the first wafer; forming an SOI wafer including the silicon oxide layer formed on the second wafer and the first single crystal silicon layer formed on the silicon oxide layer by separating the first wafer including the first single crystal silicon layer from the second wafer including the first single crystal silicon layer in the defect layer; forming a second single crystal silicon layer on the first single crystal silicon layer by epitaxial growth; forming a photodiode in the first single crystal silicon layer or the second single crystal silicon layer; and forming an interconnect layer including a photodiode charge read-out structure on a surface of the second single crystal silicon layer which is opposite to the first single crystal silicon layer.