Patent ID: 8168295
Filing Date: 2012-05-01
Classification: C03C,G06F,H01L,Y02E,Y10T

Abstract:
1. A tempered glass substrate, which has a compression stress layer on a surface thereof, and has a glass composition comprising, in terms of mass %, 40 to 71% of SiO 2 , 3 to 21% of Al 2 O 3 , 0 to 3.5% of Li 2 O, 7 to 20% of Na 2 O, 0 to 15% of K 2 O, 0.01 to 3% of SnO 2 , 0 to less than 0.1% of Sb 2 O 3 , and 0 to 0.5% of TiO 2 .