Process for Personalizing Green Ceramic Sheet with Dimensional Stability
Original Publication Date: 1980-Dec-01
Included in the Prior Art Database: 2005-Feb-14
Figs. 1 and 2 show steps in a process used in creating conductors 3, 4, and 5 in a ceramic green sheet. The ceramic green sheet 2 is first coated with a continuous layer of metallurgy. This sandwich structure is embossed, providing the raised portions 9 and 10, which are removed by a microtoming process using a blade 11 which leaves metal areas 3, 4, and 5 flush with the surface of the green ceramic. This metal coating 7 is formed by applying a metal paste to the surface. After application and during the paste drying stages, the paste solvent diffuses into the ceramic green sheet 2, plasticizing the ceramic green sheet and allowing stress relief and dimensional stabilization to occur prior to personalization by embossing. This provides a stable metallized green sheet for laminating a multilayer ceramic package.