Patent ID: 8604334
Filing Date: 2013-12-10
Classification: H01L,Y02E

Abstract:
1. A photoelectric conversion device comprising a support substrate; a first photoelectric conversion cell fixed on an upwards surface of the support substrate with a first insulating bonding layer interposed therebetween; a second photoelectric conversion cell fixed on the upwards surface of the support substrate with a second insulating bonding layer interposed therebetween; and a protective layer, wherein the first photoelectric conversion cell includes a first single crystal semiconductor layer, a first electrode on a downwards surface of the first single crystal semiconductor layer, and a second electrode on an upwards surface of the first single crystal semiconductor layer, wherein the second photoelectric conversion cell includes a second single crystal semiconductor layer, a third electrode on a downwards surface of the second single crystal semiconductor layer, and a fourth electrode on an upwards surface of the second single crystal semiconductor layer, wherein the fourth electrode extends from the upwards surface of the second single crystal semiconductor layer to be in direct contact with the first electrode through a through hole formed in the first single crystal semiconductor layer, wherein the fourth electrode comprises a conductive monolayer in direct contact with the upwards surface of the second single crystal semiconductor layer and with the first electrode in the through hole formed in the first single crystal semiconductor layer, and wherein the protective layer is interposed between the fourth electrode and both of a top portion and a side portion of the first single crystal semiconductor layer, and is in direct contact with the support substrate in a region between the first photoelectric conversion cell and the second photoelectric conversion cell.