Abstract
Although fine ceramics are both electrically and mechanically excellent, it is not used as common element parts. In order to reduce the processing cost, element processing should be carried out after press working and before baking. The demanding state should be processed after the baking. In order to examine the processing technique, 500 pieces of silicon nitride printing guides which require precise processing technique were prepared. As the result, it was possible to reduce the processing by 1/2 without loosing the quality.
