Patent ID: 6387783
Filing Date: 2002-05-14
Classification: H01L

Abstract:
A method of forming a T-gate on a substrate comprising:providing a substrate; depositing a first hybrid resist layer on the substrate; providing a first mask having a reticle feature with an edge; positioning the mask above the first hybrid resist layer so that the edge of the reticle feature is above a desired location for a base of the T-gate; exposing only the portion of the first hybrid resist layer underlying the edge of the reticle to radiation through the mask; developing the exposed portion of the first hybrid resist layer to define a first opening therein for the base of the T-gate, the opening having a loop feature formed in the first hybrid resist layer having a pattern consistent with the edge of the reticle; trimming the loop feature formed in the first hybrid resist layer by filling in a portion of the loop feature with a second resist layer and forming a second opening over the first opening to define a location for the T-gate; and forming the T-gate within the defined location.