Patent ID: 9006564
Filing Date: 2015-04-14
Classification: H01L,Y02E,Y02P

Abstract:
1. A solar cell, comprising: a semiconductor substrate; a first semiconductor layer having a first conductivity formed on a first region on one main surface of the semiconductor substrate; a second semiconductor layer having a second conductivity positioned on a second region on the one main surface of the semiconductor substrate; a first electrode formed on the first semiconductor layer, on the first region; and a second electrode formed on the second semiconductor layer, on the second region, wherein the second semiconductor layer continuously extends under both the first and second electrodes from the second region and covers the first semiconductor layer, wherein a portion of the second semiconductor layer that is exposed from the first electrode and the second electrode includes a portion having a thickness in a direction orthogonal to the one main surface that is smaller than a portion of the second semiconductor layer that is covered by the first electrode and the second electrode.