Electrically contactable grids manufacture

US8574950B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Lawrence A. Clevenger · Saratoga Springs, US
• Rainer Krause · Hochheim, DE
• Zhengwen Li · Danbury, US
• Kevin S. Petrarca · Newburgh, US
• Roger A. Quon · Austin, US
• Carl Radens · Lagrangeville, US
• Brian C. Sapp · Guilderland, US

Key dates

• Filing date: Oct 29, 2010
• Grant date: Nov 5, 2013
• Expiry date: Aug 29, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/50

Abstract

A method for manufacturing one or more electrically contactable grids on at least one surface of a semiconductor substrate for use in a solar cell product includes the following. A heat-sensitive masking agent layer is deposited on the surface of the substrate of the solar cell product. The masking agent layer is locally heated to form a grid mask. Selected parts of the masking agent layer defined by locally heating are removed to form openings in the grid mask. A contact metallization is applied on the grid mask.