Boron phosphate glass-ceramics with low dielectric loss

US11236012B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• George Halsey Beall · Big Flats, US
• Heather Debra Boek · Corning, US
• Ling Cai · Corning, US
• Jin Su Kim · Riverside, US
• Dean Michael Thelen · Addison, US
• Mark Owen Weller · Corning, US

Key dates

• Filing date: Mar 28, 2019
• Grant date: Feb 1, 2022
• Expiry date: Mar 28, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C2204/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A glass-ceramic that includes: SiO2 from about 35 mol % to about 80 mol %; B2O3 from about 10 mol % to about 50 mol %; P2O5 from about 10 mol % to about 50 mol %; and an optional addition of one or more of CaO, MgO and Bi2O3 from 0 mol % to about 5 mol %, wherein the glass-ceramic further comprises a boron-phosphate crystalline phase.