Lithographic apparatus and device manufacturing method
First Claim
Patent Images
1. An apparatus, comprising:
- a patterning array of individually controllable elements, each of the individually controllable elements includinga cell;
a polar fluid located in the cell;
a non-polar fluid located in the cell; and
an electrode coupled to the polar fluid and to a voltage source.
1 Assignment
0 Petitions
Accused Products
Abstract
A lithographic apparatus includes a patterning device that patterns a projected beam. The patterning device includes an array of cells that contain a polar fluid, a non-polar fluid, and an electrode. A potential difference across the electrode and the polar fluid causes displacement of the non-polar fluid. Based on a difference in refractive index between the polar fluid and the non-polar fluid, a beam of light which passes through the cell will have its phase changed in dependence on the relative thickness on the polar and non-polar fluids and on their refractive indices.
27 Citations
20 Claims
-
1. An apparatus, comprising:
a patterning array of individually controllable elements, each of the individually controllable elements including a cell; a polar fluid located in the cell; a non-polar fluid located in the cell; and an electrode coupled to the polar fluid and to a voltage source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
11. A method, comprising:
-
selecting an individually controllable element from a patterning array of individually controllable elements; forming a first shape of boundary regions between polar and non-polar liquids within respective cells in an array of cells during a first state; applying a potential across one or more of the cells to form corresponding second shapes of the boundary regions during a second state; and changing a phase of respective portions of a beam of radiation passing through respective ones of the cells in the second state based on the second shapes.
-
-
12. A patterning array of individually controllable elements, the individually controllable elements comprising:
-
a cell; a polar fluid located in the cell; a non-polar fluid located in the cell; and an electrode coupled to the polar fluid and to a voltage source; wherein the polar and non-polar fluids are configured to change a phase of part of a beam of radiation passing therethrough by a predetermined amount relative to other parts of the beam using an electrowetting technique. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
-
Specification