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

US10343948B2 · kind B2 · utility

Assignee

• Guardian Glass, LLC · US

Inventors

• Guowen Ding · San Jose, US
• Guizhen Zhang · Santa Clara, US
• Daniel Schweigert · Fremont, US
• Daniel Lee · San Jose, US
• Scott Jewhurst · Auburn Hills, US
• Cesar Clavero · San Jose, US
• Minh Huu Le · San Jose, US
• Brent Boyce · Novi, US

Key dates

• Filing date: Nov 16, 2018
• Grant date: Jul 9, 2019
• Expiry date: Nov 16, 2038

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 a plurality of high refractive index dielectric layers of or including a nitride of Zr and Al. In certain example embodiments, the high refractive index dielectric layers of or including a nitride of Zr and Al may be amorphous or substantially amorphous so as to allow the low-E coating to better withstand optional heat treatment (HT) such as thermal tempering. In certain example embodiments, the low-E coating may be used in applications such as monolithic or insulating glass (IG) window unit, vehicle windows, of the like.