Patent ID: 7362387

Claim:
A method for fabricating a biomolecule array using a programmable mask having a lower substrate of which an upper surface has a polysilicon thin film transistor for switching a pixel area in accordance with an electrical signal applied thereto, a lower pixel electrode composed of a transparent electrode and connected to a drain electrode of said thin film transistor, and an orientation film formed on said lower pixel electrode and said thin film transistor that operates to orientate a liquid crystal, and of which a lower surface has a polarizer formed thereon; an upper substrate of which a lower surface has an upper pixel electrode composed of a transparent electrode and an orientation film formed under said upper pixel electrode, and of which an upper surface has a polarizer formed thereon and is positioned orthogonal to the polarizer formed on the lower surface of the thin film transistor; the liquid crystal is injected between said lower substrate and said upper substrate and varied in accordance with a voltage applied thereto to selectively transmit the light; and a driving circuit formed on the upper surface of said lower substrate, for driving the polysilicon thin film transistor in said pixel area, said method comprising the steps of: preparing said programmable mask; removing a color filter from said programmable mask; providing a sample substrate under said programmable mask; supplying an electrical signal to said programmable mask for adjusting the transmission of light in a selected pixel area by arrangement of the liquid crystal; illuminating the light selectively passing through said pixel area to said sample substrate; and generating optical reaction in a biomolecule contained in said sample substrate by the light illuminated thereto to form a biomolecule array according to the pattern of said programmable mask, wherein ultraviolet light passes through the liquid crystal without deactivating said programmable mask.