METHODS FOR MULTI-WIRE ROUTING AND APPARATUS IMPLEMENTING SAME

A rectangular interlevel connector array (RICA) is defined in a semiconductor chip. To define the RICA, a virtual grid for interlevel connector placement is defined to include a first set of parallel virtual lines that extend across the layout in a first direction, and a second set of parallel virtual lines that extend across the layout in a second direction perpendicular to the first direction. A first plurality of interlevel connector structures are placed at respective gridpoints in the virtual grid to form a first RICA. The first plurality of interlevel connector structures of the first RICA are placed to collaboratively connect a first conductor channel in a first chip level with a second conductor channel in a second chip level. A second RICA can be interleaved with the first RICA to collaboratively connect third and fourth conductor channels that are respectively interleaved with the first and second conductor channels.