Patent ID: 6835584
Filing Date: 2004-12-28
Classification: G02F

Abstract:
A method for making a microdisplay pixel cell, the method comprising:providing a semiconductor substrate defined with a plurality of active areas; forming a gate oxide layer and a gate conductive layer sequentially on the semiconductor substrate; performing a photo-etching-process(PEP) to the gate conductive layer to form two gates on the semiconductor substrate and the each gate covering a portion of the active area; forming four sources and two drains in the active area not covered by the two gates; forming a first dielectric layer on the semiconductor substrate to cover the two gates, the four sources and the two drains; forming at least one row select contact plug in the first dielectric layer to electrically connect to the two gates; forming at least one row select line atop the first dielectric layer, the row select line being electrically connected to the two gates through the row select contact plug; forming a second dielectric layer atop the first dielectric layer and covering the row select line; forming four pixel cap top plates atop the second dielectric layer; forming a capacitor dielectric layer atop the surface of the top plate; and forming one pixel cap bottom plate atop the second dielectric layer and covering the four top plates.