Cells that are in the process division are vulnerable to damage by AC electric fields that have specific frequency and field strength characteristics. 2% based on the dry weight of said cationically bulked kaolin of a condensed naphthalene sulfonate complex having a molecular weight of 2000 to 10,000 and a sodium polyacrylate salt having a molecular weight of 2000 to 5000, said dispersant being free from lignosulfonate. The stepped cylinders sheath the mounting hardware to limit insulation tearing and resultant loss of insulation integrity. The hitch pin is then rotated relative to the nut to clamp the shank tube against the receiver tube. This arrangement allows the semiconductor storage device to read data with accuracy at high speed and allows the semiconductor storage device to be miniaturized at low cost.