CAPACITOR ELECTRODE AND METHOD OF MANUFACTURING THE SAME

摘要

This invention relates to a capacitor electrode which includes porous layers made of a fiber and/or a whisker containing crystal tungsten oxides. The tungsten oxide fiber and/or whisker contain W 18 O 49 as a main ingredient. The tungsten oxide fiber and/or whisker are made on a substrate. When manufacturing the capacitor electrode the substrate or its precursor is heated in vacuo or in an inactive containing a minute amount of oxygen, thereby completing the fiber and/or whisker.