Patent ID: 9660121
Date: 2017-05-23
CPC Classifications: H01L,Y02E

Claim:
1. A solar module comprising a plurality of first and second cell portions of rear contact solar cells arranged along a longitudinal axis, wherein each of the first and second cell portions comprises soldering pad arrangements on top of each of emitter contacts and base contacts which soldering pad arrangements each comprise one or more soldering pads arranged linearly and the soldering pad arrangements being arranged on the rear surface of the semiconductor substrate asymmetrically with respect to a longitudinal axis of the semiconductor substrate; wherein the plurality of first and second cell portions of the rear contact solar cells are arranged alternately along a line such that the second cell portions are arranged in a 180° orientation with respect to the first cell portions and such that soldering pad arrangements of emitter contacts and of base contacts of the first cell portions are aligned with soldering pad arrangements of base contacts and of emitter contacts of the second cell portions, respectively; and wherein the plurality of first and second cell portions of the rear contact solar cells are connected in series by linear ribbon-type connectors strips each being arranged on top of a linear soldering pad arrangement of an emitter contact of each first cell portion and on top of an aligned linear soldering pad arrangement of a base contact of a second cell portion neighboring the respective first cell portion on one side and by linear ribbon-type connector strips each being arranged on top of a linear soldering pad arrangement of a base contact of the respective first cell portion and on top of an aligned linear soldering pad arrangement of an emitter contact of a second cell portion neighboring the respective first cell portion on an opposite side, wherein no insulation layer is interposed between each of the connector strips and the emitter and base contacts, wherein the soldering pad arrangement of an emitter contact continuously extends from a first end arranged close but spaced to a first edge of a cell portion to a second end arranged at an opposite second edge of the cell portion, wherein the first end is spaced apart from the first edge by between 4 and 96% of the distance between the first and second edges.