Patent ID: 6784005
Filing Date: 2004-08-31
Classification: G03F,H01L,Y10S

Abstract:
A method comprising:determining a corrective bias to be applied to each of a plurality of contacts at different pitches for achieving a substantially identical critical dimension for each of the plurality of contacts at the different pitches, based on a first critical dimension for each of the plurality of contacts at the different pitches before photoresist reflow and a second critical dimension for each of the plurality of contacts at the different pitches after photoresist reflow; and, constructing a photomask for a semiconductor design, incorporating the corrective bias determined for contacts of the semiconductor design, such that lithographical processing of the semiconductor design on a semiconductor wafer using the photomask and subsequent photoresist reflow on the semiconductor wafer achieves a substantially identical critical dimension for each of the contacts of semiconductor design.