Patent ID: 8536068

Claim:
A method for forming a radiation sensitive photoresist on a substrate comprising: exposing a substrate sequentially to alternating pulses of a first precursor containing substituents with cross-linkable moieties and a reactant selected from ozone, H 2 O, H 2 O 2 , NH 3 , reactive oxygen, reactive nitrogen, and reactive hydrogen and a second precursor containing reactive, moieties cross-linkable with the substituents in the first precursor to form a deposited layer such that reactive, cross-linkable moieties present in the first precursor and second precursor in the deposited layer remain partially unreacted and soluble to developer solution; and selectively exposing portions of the deposited layer to radiation selected from EUV, far UV, X-ray and e-beam to create a pattern in which exposed portions of the deposited layer contain cross-linked moieties that form a film on the substrate that is less soluble than unexposed portions of the deposited layer.