Patent ID: 9356603
Filing Date: 2016-05-31
CPC Classification: B32B,C03B,C03C,H01L,H03K,Y10T

Claim Text:
1. A thermally tempered glass substrate comprising: a first glass structure including a first glass material having a first coefficient of thermal expansion (CTE) value; a plurality of second glass structures respectively including one or more second glass materials respectively having a second CTE value, the second CTE value being different from the first CTE value, wherein the plurality of second glass structures are integrally attached to the first glass structure such that the difference between the first CTE value and the second CTE value generates residual tensile and compressive stresses, and such that the residual tensile and compressive stresses remain stable until said thermally tempered glass substrate is subjected to an externally applied initial fracture force sufficient to generate secondary fractures that propagate throughout said thermally tempered glass substrate, whereby said thermally tempered glass substrate is powderized.