Patent ID: 6635409
Filing Date: 2003-10-21
Classification: G03F

Abstract:
A method of forming a photoresist layer, comprising the steps of:providing a surface; depositing a photoresist layer on the surface, the photoresist layer having material properties and comprising a matrix material, a photoactivated sensitizer material that is sensitized when exposed to radiation of a first wavelength, a solvent material, and a cross-linkable material capable of forming cross-links when exposed to radiation of a second wavelength in an ultraviolet range and different than the first wavelength; exposing the photoresist layer to radiation of the first wavelength through a mask to create an exposed area of photoresist and an unexposed area of photoresist; developing the photoresist layer to remove the exposed area of the photoresist; and exposing the photoresist layer to radiation of the second wavelength while the photoresist layer is immersed in a liquid to change the material properties.