Coated article having low-E coating with IR reflecting layer(s) and hafnium inclusive high index nitrided dielectric layer

US10266937B2 · kind B2 · utility

Assignee

• Guardian Glass, LLC · US

Inventors

• Guowen Ding · San Jose, US
• Daniel Schweigert · Fremont, US
• Albert Lee · Cupertino, US
• Daniel Lee · San Jose, US
• Scott Jewhurst · Auburn Hills, US
• Guizhen Zhang · Santa Clara, US
• Gaurav Saraf · Santa Clara, US
• Minh Huu Le · San Jose, US
• Marcus Frank · Gelnhausen, DE

Key dates

• Filing date: Mar 9, 2017
• Grant date: Apr 23, 2019
• Expiry date: Jul 14, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C2218/154
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A coated article includes a low emissivity (low-E) coating having at least one infrared (IR) reflecting layer of a material such as silver, gold, or the like, and at least one hafnium (Hf) inclusive high index nitrided dielectric layer. In certain example embodiments, the hafnium inclusive high index nitrided dielectric layer(s) may be of or include one or more of HfSiAlN, HfZrSiAlN, HfSiN, HfAlN, and/or HfAlZrN. The high index layer may be a transparent dielectric high index layer, with a high refractive index (n) and/or low k value. In example embodiments, the low-E coating may be used in applications such as monolithic or insulating glass (IG) window units, vehicle windows, or the like.