Patent ID: 6052516
Filing Date: 2000-04-18
Classification: G06F

Abstract:
An automatic layout apparatus which lays out elements in an analog LSI layout design, comprising: connection information storage means for storing connection information; extracted-element storage means for storing an extracted element; layout condition storage means for storing layout conditions; element layout means for laying out an element; layout candidate element extration means for extracting a layout candidate element; layout candidate element selection means for selecting said layout candidate element; and selected-element determination means for determining said selected layout candidate element, wherein an element is laid out by said element layout means on the basis of information of said connection information storage means and a result of said selected-element determination means, a layout candidate element is extracted by said layout candidate element extraction means on the basis of a result of said element layout means and information of said connection information storage means, information about said extracted layout candidate element is stored in said extracted-element storage means, said layout candidate element is selected by said layout candidate element selection means on the basis of a result of said layout candidate element extraction means or the information stored in said extracted-element storage means and information stored in said layout condition storage means, a selection result is determined by said selected-element determination means, and when a layout candidate element must be selected again on the basis of a determination result, a layout candidate element is selected by said layout candidate selection means.