Patent ID: 8032857

Claim:
A system for computer aided design of a 3-D integrated circuit, the system comprising: a computer having at least one processor; a hierarchical cell data structure defined on said computer; a 3-D hierarchical cell comprising a part of said hierarchical cell data structure and representing said 3-D integrated circuit; and a graphical user interface in communication with said at least one processor, said graphical user interface configured to define said 3-D hierarchical cell, said graphical user interface having, a cell name input component configured to input a name for said 3-D hierarchical cell of said 3-D integrated circuit; a technology selection component for said 3-D hierarchical cell; a 3-D technology file referenced by said technology selection component and containing information relating to how said 3-D integrated circuit is to be constructed said 3-D technology file providing means to define rules for electrical or physical interaction between geometries for 3-D design layers on specific circuit levels; a circuit level selection component configured to specify a 2-D fabrication technology for said 3-D integrated circuit; and a child cell name input component for a child cell of said 3-D hierarchical cell.