Invention Grant
- Patent Title: Method providing for asymmetric pupil configuration for an extreme ultraviolet lithography process
-
Application No.: US15040049Application Date: 2016-02-10
-
Publication No.: US09886543B2Publication Date: 2018-02-06
- Inventor: Chia-Chun Chung , Norman Chen , Chih-Tsung Shih , Jeng-Horng Chen , Shinn-Sheng Yu , Anthony Yen
- Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Haynes and Boone, LLP
- Main IPC: G06F17/50
- IPC: G06F17/50 ; G03F1/24

Abstract:
A pattern of features of an integrated circuit is provided. A configuration of a pupil of an extreme ultraviolet wavelength radiation beam (also referred to as an illumination mode), is selected. The selected configuration is an asymmetric, single pole configuration. At least one disparity is determined between a simulated imaging using the selected configuration and a designed imaging for the pattern of features. A parameter (also referred to as a compensation parameter) is then modified to address the at least one disparity, wherein the parameter at least one a design feature, a mask feature, and a lithography process parameter. A substrate is then exposed to the pattern of features using the selected configuration and the modified parameter.
Public/Granted literature
- US20170228490A1 METHOD PROVIDING FOR ASYMMETRIC PUPIL CONFIGURATION FOR AN EXTREME ULTRAVIOLET LITHOGRAPHY PROCESS Public/Granted day:2017-08-10
Information query