Patent ID: 11773009

Abstract:
The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40≤SiO2≤60, 25≤B2O3≤45, 0<Al2O3≤18, 0<R2O≤5, and 0≤RO≤12, and satisfies at least one of: i) SiO2+B2O3≥80 and SiO2+B2O3+Al2O3≤99.9; and ii) SiO2+B2O3≥78, SiO2+B2O3+Al2O3≤99.9, and 0<RO<10. Another glass composition provided includes SiO2, B2O3, Al2O3, R2O, and 3<RO<8 at the same contents as the above, and satisfies SiO2+B2O3≥75 and SiO2+B2O3+Al2O3<97, where R2O═Li2O+Na2O+K2O and RO═MgO+CaO+SrO.