Patent ID: 7086020

Claim:
A method for matching electrical characteristics of components of a semiconductor integrated circuit, comprising the steps of: dividing at least a first component and a second component of a semiconductor integrated circuit into a plurality of unit cells, wherein the first component and second component are components whose electrical properties are to be precisely or proportionally matched, and wherein each unit cell is the same size; and Uniformly distributing the plurality of unit cells for the first and second components in an array, wherein dividing at least a first component and a second component of a semiconductor integrated circuit into a plurality of unit cells, comprises: defining a full-unit cell that includes a plurality of sub-elements, wherein each sub-element is used for forming a component; defining a sub-unit cell having a same layout area and amount of sub-elements as the full-unit cell, wherein at least one or more of the sub-elements are dummy elements; and determining a number full-unit cells and sub-unit cells to be used for forming the first component and the second component.