Patent ID: 7947523

Claim:
A method for manufacturing a photoelectric conversion device, comprising: forming a first impurity semiconductor layer over a single crystal semicondcutor substrate; irradiating the single crystal semiconductor substrate with ions to form an embrittlement layer in the single crystal semiconductor substrate; forming a first electrode over the first impurity semiconductor layer; forming an insulating layer over the first electrode; attaching the insulating layer and a supporting substrate to each other to bond the single crystal semiconductor substrate and the supporting substrate and then separating the single crystal semiconductor substrate along the embrittlement layer, whereby a stack including the insulating layer, the first electrode, the first impurity semiconductor layer, and a first single crystal semiconductor layer is provided on the supporting substrate; forming a first semiconductor layer over the first single crystal semiconductor layer; forming a second semiconductor layer over the first semiconductor layer under a condition different from that of the first semiconductor layer; forming a second single crystal semiconductor layer by improving crystallinity of the first semiconductor layer and the second semiconductor layer by solid phase growth; forming a second impurity semiconductor layer having a conductivity type opposite to that of the first impurity semiconductor layer over the second single crystal semiconductor layer; and forming a second electrode over the second impurity semiconductor layer.