Techniques are disclosed for fabricating a device using a
photolithographic process. The method includes providing a first
anti-reflective coating over a surface of a substrate. A layer which is
transparent to a wavelength of light used during the photolithographic
process is provided over the first anti-reflective coating, and a
photosensitive material is provided above the transparent layer. The
photosensitive material is exposed to a source of radiation including the
wavelength of light. Preferably, the first anti-reflective coating
extends beneath substantially the entire transparent layer. The complex
refractive index of the first anti-reflective coating can be selected to
maximize the absorption at the first anti-reflective coating to reduce
notching of the photosensitive material.