Automatic block composition tool for composing custom blocks having non-standard library cells in an integrated circuit design flow
US7890909B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2008 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Mar 30, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2115/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An automatic custom block composition tool for composing custom blocks of an integrated circuit (IC) design that may include non-standard library cells. The tool includes program instructions that are executable to create and use a placement control file that includes instructions for use by the custom block composition tool to place the one or more non-standard library cells into the custom block layout. In addition, the program instructions may instantiate a leafcell for each non-standard and each standard library cell included in a netlist. The program instructions may access the placement control file and place each leafcell in a row of the custom block layout according to the placement control file. The program instructions may also pre-route power, clock and critical network signals, and generate a router control file used during remaining routing of the custom block by a conventional router tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.