MARUWA has produced alumina (Al2O3) substrates for over 40 years under severe quality control with carefully selected high purity ceramic materials that ensures stable quality and excellent properties.
Our alumina substrate has well-balanced properties of insulation, thermal conductivity and breaking strength. Moreover, one of the unique properties is its surface roughness. We can provide the ceramic substrate which is excellent in adhesion with a thin film and thick film metalization due to fine particles.