The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 1999
Filed:
Apr. 17, 1997
Ikuhiro Yokota, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A device simulation method of conducting processing for recognizing a line of electric force for use in numerical analyses of a semiconductor device including a line of electric force calculating step of calculating a search direction vector, with a predetermined point as a starting point, linking the starting point of the search direction vector with a point set on a straight line extending in the direction of the search direction vector, and repeating, as necessary, the processing for calculating a search direction vector, with the newly set point as a starting point, and the processing for linking the starting point of the calculated search direction vector with a newly set point, and a line of electric force subdividing step of repeating the processing for setting another new point on a line segment linking a starting point of a search direction vector with a newly set point to shorten the line segment and when predetermined conditions are satisfied, replacing the point set at the line of electric force calculating step with a lastly set point to return the routine to the line of electric force calculating step.