This invention prevents a substrate of a semiconductor chip that has through-silicon vias collectively arranged in a specific area thereof from becoming cracked. The invention thus relates to the plants, seeds and tissue cultures of the variety CH956667, and to methods for producing a corn plant produced by crossing a corn plant of variety CH956667 with itself or with another corn plant, such as a plant of another variety. The anode is connected with a platinum cathode in an electrolyte into which compounds of low molecular weight, preferably monomers of the polymer film, are introduced. And a sound source generates a tone of the tone color specified by the CPU.