Patent ID: 8147633
Filing Date: 2012-04-03
Classification: B32B,C04B,H01G,H05K,Y10T

Abstract:
1. A method of manufacturing a ceramic sintered body, the method comprising: preparing at least one ceramic sheet having first ceramic particles and glass particles; preparing at least one constraining sheet having second ceramic particles having a smaller particle size than the glass particles and the first ceramic particles; and forming a ceramic laminate by alternating the ceramic sheet and the constraining sheet while the ceramic sheet and the constraining sheet are in contact with each other, wherein the glass particles comprise a composition represented by (Ca, Sr, Ba)O—Al wherein the ceramic sheet comprises 40 to 80 wt % of the glass particles and 20 to 60 wt % of the first ceramic particles, wherein the 40 to 80 wt % of the glass particles comprise 2 to 10 wt % of ZnO, wherein the constraining sheet does not contain glass particles, wherein the method further comprises: sintering the ceramic laminate so that ZnO, which does not react with the first ceramic particles, from the glass particles is moved into the constraining sheet to allow the constraining sheet to be sintered while the ceramic sheet is sintered.