Patent · US Active

Alumino-silicate glass having high thermal stability and low processing temperature

US8828897B2 · kind B2 · utility

12Cited by

6References

35Claims

0Family size

Assignee

Schott AG · DE

Inventors

Jorg Fechner · Mainz, DE
Franz Ott · Mitterteich, DE
Erhard Dick · Mitterteich, DE
Christof Kass · Tirschenreuth, DE

Key dates

Filing date	Feb 29, 2012
Grant date	Sep 9, 2014
Priority date	—
Expiry date	Nov 15, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C4/0092
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to an alumino-silicate glass which has a thermal expansion coefficient in the range of 8 to 10×10−6/K in a temperature range of 20 to 300° C., a transformation temperature Tg in a range of 580° C. to 640° C., and a processing temperature VA in a range of 1065° C. to 1140° C. and which can therefore be used as an alternative for soda lime glasses. An object of the invention is also the use of the inventive glasses in applications where a high temperature stability of the glasses is advantageous, in particular as substrate glass, superstrate glass and/or cover glass in the field of semiconductor technology, preferably for Cd—Te or for CIS or CIGS photovoltaic applications and for other applications in solar technology.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.