Patent ID: 8067135

Claim:
A method of manufacturing a semiconductor device, the method comprising: providing a mask including a plurality of corner rounding test patterns formed thereon, the plurality of corner rounding test patterns comprising at least two angle-containing patterns; providing a first semiconductor device having a layer of photosensitive material disposed thereon; patterning the layer of photosensitive material of the first semiconductor device with a plurality of corner rounding test features using the mask and a lithography process; measuring an amount of corner rounding of the lithography process by analyzing at least one of the plurality of corner rounding test features relative to other of the plurality of corner rounding test features formed on the layer of photosensitive material of the first semiconductor device; altering a parameter of the lithography process or the mask in response to the amount of corner rounding measured; providing a second semiconductor device; and affecting the second semiconductor device using the altered lithography process or the altered mask.