Non-contact lithography based on optical superlensing at 193 nm

We are proposing the development of a “negative-index” material at 193 nm for use as a “superlens” for high resolution lithography. Superlensing has already been demonstrated at 365 nm, and this work will simply extend the demonstrated principles to 193 nm with a new set of materials.In Phase I, we will demonstrate this superlens with 30 nm half-pitch features, while restricting ourselves to a contact mask. In Phase II, we will extend the scheme to non-contact lithography based on superlensing at 193 nm.