Method of manufacturing solar cell with doping patterns and contacts

US8129216B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Hans-Juergen Eickelmann · Mainz, DE
• Michael Haag · Boulder, US
• Harold J. Hovel · Katonah, US
• Rainer Krause · Hochheim, DE
• Markus Schmidt · Seibersbach, DE
• Steven E. Steen · Titicus, US

Key dates

• Filing date: Apr 29, 2009
• Grant date: Mar 6, 2012
• Expiry date: Aug 3, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/547

Abstract

A method of manufacturing a solar cell. The method includes the steps of providing a substrate, applying a first dopant to a first surface, applying a second dopant to a second surface, covering the doped first surface with a hard mask, applying a third dopant to the substrate side, removing the hard mask, applying a pattern of first electrical contacts to the doping pattern, and applying a pattern of second electrical contacts to the doped second surface, the pattern of second electrical contacts and the doping pattern being straight-lined opposed.