A semiconductor device capacitor fabrication method that is capable of enabling the simultaneous use of an oxide capacitor and a PIP capacitor of a semiconductor device depending upon whether metal line terminals are used. The optical waveguide has a hole passing therethrough in its thickness direction to leave the electrode pad exposed. The tray or tray assembly can be built with a bracket that opposed diverging channels that engage diverging struts on the ladder so as to support the tray and its contents. At least three types of inks among the inks are different in specific gravity from one another, and at least two types of inks among the at least three types of inks are different in specific gravity by 0.