Patent ID: 6042667
Filing Date: 2000-03-28
Classification: B32B,C04B,H05K,Y10T

Abstract:
A method of fabricating a ceramic multilayer substrate comprising:laminating a plurality of green sheets including an inside green sheet formed with a conductor pattern;forming release green sheets on opposite surfaces of a laminate of green sheets by selecting a binder type, binder property, plasticizer quantity or release green sheet grain size such that a percent change in thickness A of a release green sheet and a percent change in thickness B of a green sheet are A.ltoreq.B-6 during a subsequent pressing step;and pressing the laminate of green sheets under a predetermined pressure together with the release green sheets, thereby bonding the laminate and release green sheets together, each release green sheet having a smaller percent change in thickness than the green sheets during the bonding and a higher firing temperature than the green sheets;firing a bonded assemblage of the green sheets and release green sheets at a firing temperature of the green sheets; andremoving the release green sheets from the opposite surfaces of a fired body.