发明名称 |
Lithography model for 3D resist profile simulations |
摘要 |
Described herein is a method for simulating a three-dimensional spatial intensity distribution of radiation formed within a resist layer on a substrate resulting from an incident radiation, the method comprising: calculating an incoherent sum of forward propagating radiation in the resist layer and backward propagating radiation in the resist layer; calculating an interference of the forward propagating radiation in the resist layer and the backward propagating radiation in the resist layer; and calculating the three-dimensional spatial intensity distribution of radiation from the incoherent sum and the interference. |
申请公布号 |
US9235662(B2) |
申请公布日期 |
2016.01.12 |
申请号 |
US201313757472 |
申请日期 |
2013.02.01 |
申请人 |
ASML NETHERLANDS B.V. |
发明人 |
Liu Peng |
分类号 |
G06F17/50;G03F7/20 |
主分类号 |
G06F17/50 |
代理机构 |
Pillsbury Winthrop Shaw Pittman LLP |
代理人 |
Pillsbury Winthrop Shaw Pittman LLP |
主权项 |
1. A method for simulating a three-dimensional spatial intensity distribution of radiation formed within a resist layer on a substrate resulting from an incident radiation, the method comprising:
determining, using a computer system, an incoherent sum of forward propagating radiation in the resist layer and backward propagating radiation in the resist layer; determining, using the computer system, an interference of the forward propagating radiation in the resist layer and the backward propagating radiation in the resist layer; and determining, using the computer system, the three-dimensional spatial intensity distribution of radiation from the incoherent sum and the interference. |
地址 |
Veldhoven NL |