Chemically amplified resists resolving 25 nm 1:1 line: space features with EUV lithography

Author(s):  
James W. Thackeray ◽  
Roger A. Nassar ◽  
Robert Brainard ◽  
Dario Goldfarb ◽  
Thomas Wallow ◽  
...  
2007 ◽  
Vol 119 ◽  
pp. 299-302 ◽  
Author(s):  
Jae Hak Choi ◽  
Phil Hyun Kang ◽  
Young Chang Nho ◽  
Sung Kwon Hong

Nanocomposite materials based on poly(p-hydroxystyrene-co-2-methyl-2-adamantyl methacrylate-co-methacrylisobutyl-POSS) were synthesized and evaluated as EUV chemically amplified resists. Incorporation of 2-methyl-2-adamantyl and POSS groups into the matrix polymer made it possible to improve the dry-etch resistance, and excellent lithographic performance was obtained. The well-defined 250 nm positive patterns were obtained using a KrF excimer laser scanner, and 100 nm elbow patterns using an EUV lithography tool. The dry-etch resistance of this resist for a CF4-based plasma was comparable to that of poly(p-hydroxystyrene).


2015 ◽  
Vol 4 (4) ◽  
Author(s):  
Takahiro Kozawa

AbstractOwing to the worldwide efforts, the development of extreme ultraviolet (EUV) lithography has significantly progressed during the past decade. The resolution of chemically amplified resists has reached sub-16-nm region. From the viewpoint of the extendibility of EUV lithography, the development of resist materials capable of resolving sub-10-nm is an urgent task. In this review, the resist material options for EUV lithography are discussed on the basis of the EUV sensitization mechanisms after reviewing the problems for the sub-10-nm fabrication.


2021 ◽  
Vol 21 (8) ◽  
pp. 4466-4469
Author(s):  
Sang-Kon Kim

Although being the optical lithography, the extreme ultraviolet (EUV) lithography with 13.5-nm wavelength is very different from the deep ultraviolet (DUV) lithography with 193-nm wavelength. Hence, the understanding of the complex detailed EUV mechanisms to cause a chemical reaction in chemically amplified resists (CARs) is required to develop EUV resists and exposure process. In this paper, for organic, metal-organic and metal-oxide resists, the electron-scattering model of exposure mechanisms needs to include the elastic and inelastic mean free paths. On top of that, Dill’s parameters of DUV and EUV resisters from the photo-generated reaction are discussed to indicate the physical and chemical characteristics. For CAR and EUV resists, Dill B parameter is large than Dill A and B parameters.


2020 ◽  
Vol 59 (8) ◽  
pp. 086506
Author(s):  
Yuta Ikari ◽  
Kazumasa Okamoto ◽  
Akihiro Konda ◽  
Takahiro Kozawa ◽  
Takao Tamura

2014 ◽  
Vol 13 (4) ◽  
pp. 043017 ◽  
Author(s):  
Abhijit A. Patil ◽  
Yogendra Narayan Pandey ◽  
Manolis Doxastakis ◽  
Gila E. Stein

2000 ◽  
Author(s):  
Takeo Watanabe ◽  
Hiroo Kinoshita ◽  
Atsushi Miyafuji ◽  
Shigeo Irie ◽  
Shigeru Shirayone ◽  
...  

2006 ◽  
Vol 45 (No. 46) ◽  
pp. L1230-L1231
Author(s):  
Katsumi Maeda ◽  
Kaichiro Nakano ◽  
Masamitsu Shirai

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