Patent ID: 11955336
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. A method of manufacturing a semiconductor device, comprising:
forming a polymer layer over plurality of features disposed over a substrate, wherein the plurality of features are separated by a distance D1 of less than 20 nm and two adjacent features are separated by a gap having a depth D2 from a top surface of the features of greater than 10 nm,
wherein the plurality of features include a metal layer disposed over a plurality of projections extending from a substrate, and
wherein the polymer layer fills the gaps and extends over the top surface of the features;
forming a photoresist layer over the polymer layer;
selectively exposing the photoresist layer to actinic radiation;
developing the selectively exposed photoresist layer to form a photoresist pattern; and
forming a conductive contact in contact with the metal layer after developing the selectively exposed photoresist layer.