Fabrication of a reflective spatial light modulator
First Claim
Patent Images
1. A method of fabricating a spatial light modulator, the method comprising:
- forming cavities in a first side of a first substrate;
fabricating electrodes and addressing and control circuitry on a first side of a second substrate;
then bonding the first side of the first substrate to the first side of the second substrate; and
then forming hinges, connectors, and mirror plates on a second side of the first substrate.
0 Assignments
0 Petitions
Accused Products
Abstract
Fabrication of a reflective spatial light modulator including a micro-mirror array. In one embodiment, the micro-mirror array is fabricated from a substrate that is a single crystal material by only two main etching steps. A first etch forms cavities in a first side of the material. A second etch forms support post, a vertical hinge, and a mirror plate. Between the first and second etches, the substrate can be bonded to addressing and control circuitry.
-
Citations
24 Claims
-
1. A method of fabricating a spatial light modulator, the method comprising:
-
forming cavities in a first side of a first substrate;
fabricating electrodes and addressing and control circuitry on a first side of a second substrate;
then bonding the first side of the first substrate to the first side of the second substrate; and
then forming hinges, connectors, and mirror plates on a second side of the first substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of fabricating a plurality of mirror plates of a spatial light modulator for display applications, the method comprising:
-
forming a plurality of wells in a first side of a first substrate;
fabricating addressing and control circuitry and electrodes on a second substrate;
bonding the first side of the first substrate to the second substrate; and
then processing the second side of the first substrate to release the plurality of mirror plates from the first substrate. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A method of fabricating an array of micro-mirrors for a reflective spatial light modulator, the method comprising:
-
forming an array of cavities in a first side of a first substrate;
fabricating addressing and control circuitry and an array of electrodes on a first side of a second substrate;
then bonding the first side of the first substrate to the first side of the second substrate; and
then forming the array of micro-mirrors on a second side of the first substrate, wherein the micro-mirrors in the array of micro-mirrors comprise a mirror plate and a hinge. - View Dependent Claims (20, 21, 22, 23, 24)
-
Specification