Patent ID: 7300807

Claim:
A method of forming a precision element on a semiconductor substrate comprising: forming a first element comprising a calibration structure in a first region of a semiconductor substrate; forming a plurality of second elements in a second region of the substrate, the plurality of second elements comprising individual elements, the individual elements ranging in value about a desired value, wherein the plurality of second elements comprise one element having a nominal value about equal to the desired value, another element having a value of about 10% less than the desired value, and a further element having a nominal value of about 10% greater than the value of the desired element; measuring the value of the first element; comparing the measured value to a target value; and selecting at least one of the individual second elements corresponding to the result of the comparison to provide a precision element comprised of the at least one selected individual second element that has said target value, wherein when the measured value of the first element is greater than the target value, the element having a nominal value of about 10% less than the desired value is selected.