Thick-film pastes containing lead—tellurium—lithium—oxides, and their use in the manufacture of semiconductor devices

US8889980B2 · kind B2 · utility

Assignee

• E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

• Alan Frederick Carroll · Raleigh, US
• Kenneth Warren Hang · Hillsborough, US
• Brian J. Laughlin · Apex, US
• Kurt Richard Mikeska · Wilmington, US
• Carmine Torardi · Wilmington, US
• Paul Douglas Vernooy · Hockessin, US

Key dates

• Filing date: May 4, 2011
• Grant date: Nov 18, 2014
• Expiry date: May 4, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/52
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention provides a thick-film paste for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal, and a lead-tellurium-lithium-oxide dispersed in an organic medium.