Invention Application
US20160223896A1 METHOD FOR A LOW PROFILE ETCHABLE EUV ABSORBER LAYER WITH EMBEDDED PARTICLES IN A PHOTOLITHOGRAPHY MASK 有权
用于在光刻胶掩模中具有嵌入颗粒的低轮廓可蚀刻的EUV吸收层的方法

  • Patent Title: METHOD FOR A LOW PROFILE ETCHABLE EUV ABSORBER LAYER WITH EMBEDDED PARTICLES IN A PHOTOLITHOGRAPHY MASK
  • Patent Title (中): 用于在光刻胶掩模中具有嵌入颗粒的低轮廓可蚀刻的EUV吸收层的方法
  • Application No.: US14609588
    Application Date: 2015-01-30
  • Publication No.: US20160223896A1
    Publication Date: 2016-08-04
  • Inventor: Lei SUNObert Reeves WOOD, II
  • Applicant: GLOBALFOUNDRIES Inc.
  • Main IPC: G03F1/22
  • IPC: G03F1/22
METHOD FOR A LOW PROFILE ETCHABLE EUV ABSORBER LAYER WITH EMBEDDED PARTICLES IN A PHOTOLITHOGRAPHY MASK
Abstract:
Methods for creating a EUV photolithography mask with a thinner highly EUV absorbing absorber layer and the resulting device are disclosed. Embodiments include forming a multilayer reflector (MLR); forming first and second layers of a first EUV absorbing material over the MLR, the second layer being between the first layer and the MLR; and implanting the first layer with particles of a second EUV absorbing material, wherein the first EUV absorbing material is etchable and has a lower EUV absorption coefficient than the second EUV absorbing material, and wherein the implanted particles are substantially separated from each other.
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