Abstract: A method of modifying an integrated circuit includes operations related to identifying at least two fin-containing functional areas of the integrated circuit, generating a performance curve for each fin-containing functional area of the integrated circuit for each fin height of a series of fin heights, and determining whether an inflection point exists for each performance curve. The method further includes operations related to selecting a value of a performance characteristic for each of the fin-containing functional areas, the selected value having a corresponding fin height in each of the fin-containing functional areas, modifying each fin-containing functional area to have the fin height corresponding to the selected value of the performance characteristic; and combining the modified fin-containing functional areas to form a modified integrated circuit.