Method for fabricating a ceramic multi-layer substrate

H - Electricity – 05 – K

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H05K 1/14 (2006.01) H05K 3/40 (2006.01) H05K 3/46 (2006.01) H05K 1/03 (2006.01) H05K 1/09 (2006.01)

Patent

CA 2093407

A method for fabricating a ceramic multi-layer substrate by a greensheet process includes a step of bonding an organic resin film on a ceramic greensheet cast on a carrier film; a step of forming a through-hole on said ceramic greensheet in a state in which this ceramic greensheet retains one or both of said films and filling conductive paste in said through-hole by using one of said films as a mask; a step of removing one of said films. placing said ceramic green-sheet on a stack of ceramic greensheets forming a base. forming a laminate assembly by applying pressure thereto, and removing the other of said films remaining in said assembly. It is possible to suppress the occurrence of deformation in dimensions of greensheets when they are processed and of displacement or misalignment when they are laminated.

Méthode de fabrication d'un substrat multicouche au moyen du procédé de la plaque de céramique verte qui inclut une étape consistant à lier une pellicule de résine organique sur une plaque de céramique verte coulée sur une pellicule de support; une étape visant à former un trou métallisé sur la plaque de céramique verte dans un état dans lequel cette plaque de céramique verte retient une ou deux de ces pellicules, et à remplir de pâte conductrice le trou métallisé en utilisant une de ces pellicules comme masque; une étape consistant à enlever une de ces pellicules. Placer ces plaques de céramique verte sur un empilage de plaques de céramique verte formant une base, former un stratifié en y appliquant de la pression, et en enlevant l'autre pellicule qui reste dans ce stratifié. Il est possible d'éviter la déformation des plaques de céramique verte (dimensions) lorsqu'elles sont traitées et leur déplacement ou mauvais alignement lorsqu'elles sont stratifiées.

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