Patent ID: 8199455
Filing Date: 2012-06-12
Classification: C03C,C04B,H01L,H05K

Abstract:
1. A glass ceramic composition comprising: a first ceramic powder containing forsterite as a primary component; a second ceramic powder containing at least one of strontium titanate and titanium oxide as a primary component; 2 to 20 percent by weight of a third ceramic powder containing BaZrO more than 2 up to 20 percent by weight of a fourth ceramic powder containing SrZrO 3 to 20 percent by weight of a borosilicate glass containing 3 to 15 percent by weight of lithium calculated in the form of Li wherein the content of the additive component contained in the borosilicate glass powder is up to 15 percent by weight when in the form of CaO, and up to 25 percent by weight when in the form of BaO or SrO, and when the second ceramic powder includes the ceramic powder containing strontium titanate as a primary component, the content of strontium titanate is in the range of 3 to 13 percent by weight in the form of SrTiO