Abstract: A production method includes: preparing a metal clad laminate including a dielectric layer?30 ?m thick, a first metal foil on a first surface of the dielectric layer, a second metal foil on a second surface of the dielectric layer, first and second carriers on the metal foil via a releasable layer; arranging the pair of metal clad laminates on a resin substrate so the first carrier of each metal clad laminate faces the resin substrate on each surface of the resin substrate; releasing the second carrier from a laminated member to expose the second metal foil; forming a pattern on the second metal foil; arranging an insulating layer on the pattern and arranging a metal layer on the insulating layer; and separating the first carrier and the first metal foil from each other. The dielectric layer has a strain energy at break of 1.8 MJ or less.

Abstract: The present invention provides an exhaust gas cleaning catalyst containing a tetragonal-system composite oxide which is produced through a neutralization coprecipitation-drying-firing method and which is represented by A2BO4 (wherein A represents at least one member selected from the group consisting of Ca, Sr, and Ba; and B represents at least one member selected from the group consisting of Mn, Fe, Ti, Sn, and V), and a noble metal component which is present in the tetragonal-system composite oxide as a solid solution or which is carried by the composite oxide. The invention also provides a method for producing the tetragonal-system composite oxide. The exhaust gas cleaning catalyst exhibits high catalytic activity at low temperature and excellent heat resistance, thereby attaining reliable exhaust gas purification performance.