Patent ID: 9431434
Filing Date: 2016-08-30
CPC Classification: H01L

Claim Text:
1. A method of manufacturing a pixel unit, including steps of: forming a polysilicon layer on a substrate; performing a single patterning process on the polysilicon layer so as to form an active region of a thin film transistor and a lower electrode region of a storage capacitor; forming a first insulating layer on the polysilicon layer, portions of the first insulating layer being used as a gate insulating layer of the thin film transistor and a dielectric layer of the storage capacitor; performing a single doping process on the active region and the lower electrode region so as to form heavily doped regions of the thin film transistor and a lower electrode of the storage capacitor respectively; forming a gate of the thin film transistor and an upper electrode of the storage capacitor on the first insulating layer; forming, before performing an ion activation treatment in the heavily doped regions and the lower electrode region, a second insulating layer on the first insulating layer, the gate and the upper electrode; and after forming the second insulating layer, processing the substrate at a temperature above 400° C. so that an ion activation reaction and a hydrogenation reaction occur in the active region and the lower electrode region.