Surface segregation of photoresist copolymers containing polyhedral oligomeric silsesquioxanes studied by x-ray photoelectron spectroscopy

被引:14
作者
Eon, D
Cartry, G
Fernandez, V
Cardinaud, C
Tegou, E
Bellas, V
Argitis, P
Gogolides, E
机构
[1] Inst Mat Jean Rouxel, Lab Plasmas & Couches Minces, F-44322 Nantes, France
[2] Inst Microelect NCRS Demokritos, Aghia Paraskevi 15310, Greece
来源
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2004年 / 22卷 / 05期
关键词
D O I
10.1116/1.1798871
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Copolymers containing polyhedral oligomeric silsesquioxane (POSS) pendant groups and various acrylate type monomers are studied by x-ray photoelectron spectroscopy. These copolymers have potential application as bilayer resist material for next generation lithography. Two methods are used in order to characterize resist surfaces, angular resolved XPS and inelastic background signal quantification (Tougaard method). The existence of a surface layer rich in POSS is proven. About 1.5 nm thick, this layer stands above a material with uniform POSS concentration. Evaluation of POSS concentration depth profiles shows that surface segregation depends on the polymer comonomers and on the silicon content. (C) 2004 American Vacuum Society.
引用
收藏
页码:2526 / 2532
页数:7
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