发明名称 Electric/magnetic field guided acid profile control in a photoresist layer
摘要 Methods and apparatuses for minimizing line edge/width roughness in lines formed by photolithography are provided. In one example, a method of processing a substrate, the method includes applying a photoresist layer comprising a photoacid generator to a substrate, exposing a first portion of the photoresist layer unprotected by a photomask to a radiation light in a lithographic exposure process, and applying an electric field or a magnetic field to alter movement of photoacid generated from the photoacid generator substantially in a vertical direction.
申请公布号 US9366966(B2) 申请公布日期 2016.06.14
申请号 US201414478403 申请日期 2014.09.05
申请人 APPLIED MATERIALS, INC. 发明人 Xie Peng;Godet Ludovic
分类号 G03F7/26;G03F7/20 主分类号 G03F7/26
代理机构 Patterson & Sheridan, LLP 代理人 Patterson & Sheridan, LLP
主权项 1. A method of processing a substrate, the method comprising: applying a photoresist layer comprising a photoacid generator to a substrate; exposing a first portion of the photoresist layer unprotected by a photomask to a radiation light in a lithographic exposure process; and applying an electric field and a magnetic field to alter movement of photoacid generated from the photoacid generator substantially in a vertical direction.
地址 Santa Clara CA US