Invention Grant
US08728710B2 Photo-imageable hardmask with dual tones for microphotolithography
有权
用于显微光刻的具有双色调的可光成像硬掩模
- Patent Title: Photo-imageable hardmask with dual tones for microphotolithography
- Patent Title (中): 用于显微光刻的具有双色调的可光成像硬掩模
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Application No.: US12749893Application Date: 2010-03-30
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Publication No.: US08728710B2Publication Date: 2014-05-20
- Inventor: Sam Xunyun Sun
- Applicant: Sam Xunyun Sun
- Main IPC: G03F7/075
- IPC: G03F7/075 ; G03F7/20 ; G03F7/30 ; G03F7/36 ; G03F7/38

Abstract:
Disclosed is a method of making polysiloxane and polysilsesquioxane based hardmask respond to radiations with positive tone and negative tone simultaneously. Unradiated films are insoluble in developers, showing positivity tone. Radiated films are insoluble in developers as well, showing negative tone. Only half-way radiated films are soluble in developers. The dual-tone photo-imageable hardmask produces splitted patterns. Compositions of dual-tone photo-imageable hardmask based on the chemistry of polysiloxane and polysilsesquioxanes are disclosed as well. Further disclosed are processes of using photo-imageable hardmasks to create precursor structures on semiconductor substrates with or without an intermediate layer.
Public/Granted literature
- US20120202349A1 Photo-imageable Hardmask with Dual Tones for Microphotolithography Public/Granted day:2012-08-09
Information query
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