Patent ID: 11953835
Assignee: ASML NETHERLANDS B.V.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method of exposing a substrate by a patterned radiation beam, the method comprising:
imparting a radiation beam by an array of individually controllable elements;
generating, from the radiation beam, a patterned radiation beam, by tilting the individually controllable elements between different positions about a tilting axis;
projecting the patterned radiation beam towards a substrate; and
scanning a substrate across the patterned radiation beam in a scanning direction so as to expose the substrate to the patterned radiation beam,
wherein the tilting axis of the individually controllable elements is substantially perpendicular to the scanning direction, and
wherein a tilt angle variation of a controllable element of the array of individually controllable elements causes substantially only a positional variation in the scanning direction of a portion of the patterned radiation beam that is imparted by the controllable element and that is projected towards the substrate.