Lithographic performance and optimization of chemically amplified single-layer resists for EUV lithography

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


2000 ◽  
Vol 53 (1-4) ◽  
pp. 689-692
Author(s):  
Shigeyasu Mori ◽  
Shigeru Shirayone ◽  
Shigeo Irie ◽  
Nobuyuki Matsuzawa ◽  
Hiroaki Oizumi ◽  
...  

1998 ◽  
Vol 11 (3) ◽  
pp. 419-429 ◽  
Author(s):  
F. M. Houlihan ◽  
J. M. Kometani ◽  
A. G. Timko ◽  
R. S. Hutton ◽  
A. H. Gabor ◽  
...  

2006 ◽  
Vol 19 (4) ◽  
pp. 533-538 ◽  
Author(s):  
Seiya Masuda ◽  
Yasutomo Kawanishi ◽  
Shuuji Hirano ◽  
Sou Kamimura ◽  
Kazuyoshi Mizutani ◽  
...  

Author(s):  
Takahiro KOZAWA

Abstract The manufacturing of semiconductor devices using extreme ultraviolet (EUV) lithography started in 2019. A high numerical aperture (NA) tool under development is capable of resolving 8 nm line-and-space optical images and will extend the application of EUV lithography. However, resist materials have not been yet applicable to the production with 8 nm resolution. In this study, the relationships among the half-pitch of line-and-space patterns (resolution), chemical gradient [an indicator of line edge roughness (LER)], and sensitivity were investigated in the sub-10 nm half-pitch region for chemically amplified EUV resists. The chemical gradient was simulated on the basis of their sensitization and reaction mechanisms. The relationship was formulated as a function of total sensitizer concentration (the sum of photoacid generator and photodecomposable quencher concentrations) and the thermalization distance of secondary electrons. The effect of thermalized electrons was well incorporated into the trade-off relationships between resolution, LER, and sensitivity.


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.


2009 ◽  
Author(s):  
Masamitsu Shirai ◽  
Koichi Maki ◽  
Haruyuki Okamura ◽  
Koji Kanayama ◽  
Toshiro Itani

2016 ◽  
Author(s):  
Tatsuya Fujii ◽  
Shogo Matsumaru ◽  
Tomotaka Yamada ◽  
Yoshitaka Komuro ◽  
Daisuke Kawana ◽  
...  

1994 ◽  
Vol 23 (1-4) ◽  
pp. 283-286 ◽  
Author(s):  
I.W. Rangelow ◽  
P. Hudek ◽  
I. Kostič ◽  
Z. Borkowicz ◽  
G. Stangl

Author(s):  
A. G. Timko ◽  
F. M. Houlihan ◽  
R. A. Cirelli ◽  
O. Nalamasu ◽  
Hiroshi Yoshino ◽  
...  

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