Leakage Reduction Using Stress-Enhancing Filler Cells

摘要

Aspects of the disclosed technology relate to techniques of inserting stress-enhancing filler cells for leakage reduction. Stress analysis is first performed to identify devices with large leakage current in a layout design. An optimization zone in a row of cells that contains one or more of the devices with large leakage current is then determined. Stress-enhancing filler cells are inserted into the optimization zone to replace some or all of the one or more filler cells while placement of the cells in the optimization zone is adjusted based on a leakage reduction analysis.

主权项

1. One or more non-transitory computer-readable media storing computer-executable instructions for causing one or more processors to perform a method, the method comprising:
determining an optimization zone in a row of cells on a layout design, the optimization zone being a portion of the row of cells between two consecutive fixed cells, the optimization zone comprising unfixed cells and one or more filler cells, the fixed cells being functional cells of which positions cannot be changed, and the unfixed cells being functional cells of which positions can be changed; and inserting stress-enhancing filler cells into the optimization zone to replace some or all of the one or more filler cells while cell placement of the optimization zone is adjusted based on a leakage reduction analysis.