The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2017
Filed:
Aug. 26, 2013
Kyocera Corporation, Kyoto-shi, Kyoto, JP;
KYOCERA Corporation, Kyoto, JP;
Abstract
To improve characteristics, reliability, and the like of a solar cell element, the solar cell element includes: a semiconductor substrate which includes a first main surface and a second main surface that is positioned opposite to the first main surface, and in which a p-type semiconductor region and an n-type semiconductor region are stacked in such a manner that the p-type semiconductor region is positioned closest to the first main surface and the n-type semiconductor region is positioned closest to the second main surface; a first passivation layer which is disposed on the p-type semiconductor region that is positioned closest to the first main surface, and which includes aluminum oxide; and a first protective layer that is disposed on the first passivation layer. The first protective layer includes an oxide that contains at least one kind of zirconium and hafnium.