Patent ID: 7802218
Filing Date: 2010-09-21
Classification: G06F

Abstract:
1. A computer-implemented method for analyzing a layout for a semiconductor integrated circuit including a plurality of physical devices, the method comprising: holding, in a library, systematic variation distribution tables for measured physical parameters dependent on different layouts of the semiconductor integrated circuit among physical parameters related to characteristics of the semiconductor integrated circuit in which the variation distribution tables represent variation distributions in characteristics of the semiconductor integrated circuit with respect to variations in physical parameters dependent on the layout of the semiconductor integrated circuit and the variation distribution tables are generated in accordance with shapes, density, and locations of the physical devices; analyzing, by using a computer, a design layout pattern for the semiconductor integrated circuit, the design layout pattern to be analyzed including shapes of patterns of the physical devices, density of the patterns, and location of the patterns on a chip and selecting from the library a variation distribution table for each of the plurality of physical devices based on the result of the analysis of the design layout pattern; and generating a physical parameter distribution for the semiconductor integrated circuit based on the selected variation distribution tables respectively corresponding to the plurality of physical devices; wherein the semiconductor integrated circuit is formed by the chip including a plurality of areas; and the variation distribution tables for the measured physical parameters are dependent on the layout and assembly stress of the semiconductor integrated circuit and are generated for each area of the chip, the assembly stress representing external stress acting on the semiconductor integrated circuit when assembling the semiconductor integrated circuit, and different assembly stress is exerted on the physical devices dependent on locations of the physical devices in the semiconductor integrated circuit and contents of the assembling.