Patent ID: 6373543
Filing Date: 2002-04-16
Classification: G02F

Abstract:
A method of forming an array of pixel cells for a silicon light valve, the method comprising:forming a plurality of discrete raised active pixel electrodes over an intermetal dielectric layer, the active pixel electrodes separated by trenches, the active pixel electrodes and trenches creating a topography; flowing a first quantity of a first material in liquid form over the active pixel electrodes such that the first quantity of first material settles within the trenches, the first material having a first viscosity; curing the first quantity of first material to form a lower layer within the trenches, the lower layer reducing the topography offered by the trenches and the discrete pixel electrodes; flowing a second quantity of second material in liquid form over the discrete pixel electrodes and the lower layer, the second alignment material having a second viscosity, the first quantity being smaller than the second quantity, the first viscosity being lower than the second viscosity; and curing the second quantity of second material to form a planar surface layer of uniform thickness over the discrete pixel electrodes and the lower layer.