Laser etching a stack of thin layers for a connection of a photovoltaic cell

US9112099B2 · kind B2 · utility

Assignee

• NEXCIS · FR

Inventor

• Brendan Dunne · Gardanne, FR

Key dates

• Filing date: Jan 28, 2013
• Grant date: Aug 18, 2015
• Expiry date: Jan 28, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/541

Abstract

A treatment of thin layers for forming a connection of a photovoltaic cell including the thin layers, which includes a first layer, having photovoltaic properties, deposited on a second layer, and the second layer, which is a metal contact layer, deposited on a substrate, the treatment including etching, in the first layer, at least one first trench having a first width so as to expose the second layer; and etching, in the first trench, a second trench so as to expose the substrate, the second trench having a second width less than the first width.