Patent ID: 6396106
Filing Date: 2002-05-28
Classification: H01L

Abstract:
A thin film transistor comprising:an insulating substrate including a transistor area and a capacitor area; a gate electrode and a lower electrode of a capacitor formed at the transistor area and the capacitor area of the insulating substrate, respectively; a gate insulating film formed on the insulating substrate to cover the gate electrode and the lower electrode, said gate insulating film having a thickness which is greater at a portion corresponding to the gate electrode than at a portion covering the lower electrode; an active layer formed on the gate insulating film at a portion corresponding to the gate electrode; an ohmic contact layer formed at each side of the active layer; source and drain electrodes formed on the gate insulating film to contact the ohmic contact layer; and an upper electrode formed on the gate insulating film at a portion corresponding to the lower electrode provided at the capacitor area.