Implementing Z directional macro port assignment
US8448121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2011 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Aug 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2115/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system and computer program product are provided for implementing an enhanced Z-directional macro port assignment or three-dimensional port creation for random logic macros of heterogeneous hierarchical integrated circuit chips. An initial port placement is provided on a layer for a macro. The initial port placement is expanded to provide a three-dimensional port shape including a plurality of metal layers along a z-axis. Wire routing of each of the macro level and a chip top level is defined within the expanded three-dimensional port shape. Each unnecessary metal layer of the expanded three-dimensional port shape is removed, providing a final three-dimensional port shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.