METHOD FOR MANUFACTURING MULTI-LAYER CERAMIC SUBSTRATE

摘要

The present invention relates to a method for manufacturing multi-layer ceramic substrate, a plurality of aluminum oxide ceramic substrate units are piled together, between each two ceramic substrate units is an oxide medium layer which can grow crystal grain during sintering. Such that the upper and lower ceramic substrate units will compactly bind together with the oxide medium layer because the grown crystal grains enter into the gaps or holes formed between the crystal grains of the surfaces of ceramic substrate units during sintering process.