Abstract: An article including an inorganic compound according to the present invention includes a porous part and a no-porous frame body surrounding the porous part in a plane direction, and includes a stress relaxation part between the porous part and the frame body.

Abstract: A substantially rectangular insulating substrate is prepared. Next, pairs of lead electrodes are formed on the substrate such that they extend in parallel with regular intervals and slantwise with reference to the longitudinal direction of the substrate. The electrodes are formed by use of a lithography technology, including deposition and etching. Then, a resistor material is pasted on the substrate and the electrodes by screen printing, to thereby form a strip-shaped resistor extending in the longitudinal direction. Finally, a protective layer is formed on the resultant structure, so as to prevent the resistor and the electrodes from being oxidized or worn away, thereby completing the fabrication of a thermal head. In this thermal head, each of those portions of the strip-shaped resistor which are defined by a pair of adjacent lead electrodes serves as a parallelogrammatic heating resistor used for recording one pixel.