Contacts for solar cells formed by directing a laser beam with a particular shape on a metal foil over a dielectric region

US9653638B2 · kind B2 · utility

Assignees

• SUNPOWER CORPORATION · US
• TOTAL MARKETING SERVICES · FR

Inventors

• Matthieu Moors · Braine-le-Château, BE
• David D. Smith · Dublin, US
• Gabriel Harley · Mountain View, US
• Taeseok Kim · Pleasanton, US

Key dates

• Filing date: Dec 20, 2013
• Grant date: May 16, 2017
• Expiry date: Dec 20, 2033

Classification

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

Abstract

A method of fabricating a solar cell is disclosed. The method can include forming a dielectric region on a surface of a solar cell structure and forming a metal layer on the dielectric layer. The method can also include configuring a laser beam with a particular shape and directing the laser beam with the particular shape on the metal layer, where the particular shape allows a contact to be formed between the metal layer and the solar cell structure.