| 摘要 |
<p>PURPOSE:To reduce the parasitic resistance value without increasing the area of the power supply wiring part for preventing the erroneous operation due to noise from occurring by a method wherein the thickness of the metallic wirings of a power supply wiring part is made larger than that of the metallic wiring of the other wiring part. CONSTITUTION:The metallic wirings of VCC wiring 5 and GND wiring 6 are made thicker than the metallic wiring of a memory cell array part 2. Since the parasitic resistance of the metallic wirings is inverse proportional to the thickness of the metallic wirings, the parasitic resistance value thereof can be reduced without increasing the area of the power supply wiring part.</p> |
