Characterizing cell using input waveform generation considering different circuit topologies

摘要

In some embodiments, in a method performed by at least one processor, a cell is characterized, by the at least one processor, with respect to an input transition characteristic considering different circuit topologies of a pre-driver driving the cell resulting in the same input transition characteristic.

主权项

1. A method, comprising:
characterizing, by at least one processor, a cell with respect to an input transition characteristic considering different circuit topologies of a pre-driver driving the cell resulting in the input transition characteristic, the characterizing comprising:
obtaining an input waveform with the input transition characteristic and a representative first characteristic,
the different circuit topologies of the pre-driver driving the cell resulting in different first characteristics,the representative first characteristic being selected from second characteristics collected from at feast a chip comprising circuit topologies representative of the different circuit topologies of the pre-driver driving the cell; andcharacterizing the cell using the input waveform to create an entry associated with the input transition characteristic in a library; generating a design layout based on performing circuit simulation using the entry in the library; and manufacturing an integrated circuit (IC) chip using the design layout.