Patent ID: 11952310
Assignee: CORNING INCORPORATED
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A silicate glass article comprising one or more of through glass vias, wherein
(a) the through glass via has a first surface diameter (DS1), a second surface diameter (DS2), and a waist diameter (Dw), wherein the ratio of DS1/Dw is from 1:1 to 2:1 and the ratio of DS2/Dw is from 1:1 to 2:1, and
(b) the silicate glass comprises:
(1) B2O3 in an amount of at least 5 mol %;
(2) the presence of Al2O3 and RO, wherein Al2O3 is in an amount of less than 10 mol % and RO in a total amount of less than 10 mol %, wherein R is Mg, Ca, Ba, Sr, or any combination thereof, and
(3) P2O5 in an amount of 1 mol % to 10 mol %,
wherein the silicate glass is alkali free and does not include TiO2.