Patent ID: 8389405

Claim:
A method for forming a fine pattern, the method comprising: forming a first film on a substrate; forming a first film pattern including a first level area and a second level area having different distances from the substrate by changing a profile of an upper surface of the first film; forming a photoresist film having a first area covering the first level area and a second area covering the second level area; light-exposing the photoresist film under a light exposure condition, in which an optimal focused electron beam is eradiated on the first area and a defocused electron beam is eradiated on the second area, by using a photo mask having a light exposure pattern for simultaneously light-exposing the first area and the second area with the same width; forming a plurality of photoresist patterns continuously extending over the first level area and the second level area of the first film pattern with different widths on the first level area and the second level area by developing the light-exposed photoresist film; and forming a plurality of first fine patterns having different widths on the first level area and the second level area by etching the first film pattern using the plurality of photoresist patterns as an etching mask.