Patent ID: 8936973
Filing Date: 2015-01-20
Classification: H01L

Abstract:
1. A method of forming a gate dielectric in each MOTFT of an active matrix comprising the steps of: providing a substrate; depositing a layer of gate metal on the substrate; patterning the gate metal to define a matrix of MOTFTs aligned in rows and columns with each MOTFT including a gate electrode with all gate electrodes in each column connected together by a gate metal line and the gate metal line in each column connected at one end to the gate metal line in the next adjacent column by a gate metal bridging portion; anodizing the gate metal gate electrodes, the gate metal lines and the gate metal bridging portions, the anodizing forming a layer of gate dielectric material on the gate metal; depositing a layer of semiconductor metal oxide over the patterned anodized gate metal and patterning the layer of metal oxide to define an active layer for each MOTFT in the matrix of MOTFTs; forming source/drain metal electrodes on the layer of patterned semiconductor metal oxide for each MOTFT in the matrix of MOTFTs, the source/drain electrodes being spaced apart to partially cover a channel area defined in the active layer of each MOTFT; and using a laser, cutting the gate metal bridging portion electrically connecting each gate metal line to the next adjacent gate metal line.