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公开(公告)号:JP2001308191A
公开(公告)日:2001-11-02
申请号:JP2001070099
申请日:2001-03-13
Applicant: IBM
Inventor: JOSHI RAJIV V , KARL E KREHL
Abstract: PROBLEM TO BE SOLVED: To provide a computer program product concerning to design of the multi-input circuit, macro or chip, especially of an SOI circuit. SOLUTION: With regard to an multi-input circuit, an object list of items corresponding to a circuit device is generated. The items model local effect for a corresponding circuit element. The circuit is analyzed using static analysis or DC analysis and an initial local effect for the circuit device including body effect and local heat effect is obtained. The initial local effect is delivered to a circuit model for transient analysis. The local effect is inspected from inspected transient results and updated. Transient response is executed repetitively until variation of the local effect falls within an upper limit and the local effect is updated. In order to enhance efficiency, an unswitched device can be excluded from repetitive analysis and the analysis can be limited to a period where switching takes place.