| 摘要 |
PURPOSE:To reduce the area of an element by differentiating the thicknesses of wiring layers for every wiring. CONSTITUTION:A metallic wiring layer 7 is selectively attached to only the wiring portion of high-current regions. The thickness h4 of the metallic wiring in the high- current regions 6 and 7 is thicker than the thickness h3 of the metallic wiring in the low-current region 5. By this method, the wiring width l4 which is one fifth the width of conventional wirings is possible, and the area required for wiring in the high-current regions in a large-scale-integrated circuit can be reduced. |
