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    • 14. 发明授权
    • Bi-layer photoresist method for forming high resolution semiconductor features
    • 用于形成高分辨率半导体特征的双层光致抗蚀剂方法
    • US06787455B2
    • 2004-09-07
    • US10032353
    • 2001-12-21
    • Ming-Huan TsaiHun-Jan TaoJu-Wang HsuCheng-Ku Chen
    • Ming-Huan TsaiHun-Jan TaoJu-Wang HsuCheng-Ku Chen
    • H01L214763
    • G03F7/094H01L21/0274H01L21/76802
    • A method for semiconductor device feature development using a bi-layer photoresist including providing a non-silicon containing photoresist layer over a substrate; providing a silicon containing photoresist over the non-silicon containing photoresist layer; exposing said silicon containing photoresist layer to an activating light source an exposure surface defined by an overlying pattern according to a photolithographic process; developing said silicon containing photoresist layer according to a photolithographic process to reveal a portion the non-silicon containing photoresist layer; and, dry developing said non-silicon containing photoresist layer in a plasma reactor by igniting a plasma from an ambient mixture including at least oxygen, carbon monoxide, and argon.
    • 一种使用双层光致抗蚀剂的半导体器件特征显影的方法,包括在衬底上提供不含硅的光致抗蚀剂层; 在含硅光致抗蚀剂层上提供含硅光致抗蚀剂; 将所述含硅光致抗蚀剂层暴露于激活光源,根据光刻工艺由覆盖图案限定的曝光表面; 根据光刻工艺显影所述含硅光致抗蚀剂层以露出含有非硅的光致抗蚀剂层的一部分; 以及通过从包括至少氧,一氧化碳和氩的环境混合物点燃等离子体,在等离子体反应器中干燥显影所述不含硅的光致抗蚀剂层。