Directed Self-assembly of Topcoat-free, Integration-friendly High-χ Block Copolymers

被引:5
作者
Vora, Ankit [1 ]
Chunder, Anindarupa [1 ]
Tjio, Melia [1 ]
Balakrishman, Srinivasan [1 ]
Lofano, Elizabeth [1 ]
Cheng, Joy [1 ]
Sanders, Daniel P. [1 ]
Hirahara, Eri [2 ]
Akiyama, Yasushi [2 ]
Polishchuk, Orest [3 ]
Paunescu, Margareta [3 ]
Baskaran, Durairaj [3 ]
Hong, SungEun [3 ]
Lin, Guanyang [3 ]
机构
[1] IBM Res Almaden, San Jose, CA 95120 USA
[2] AZ Elect Mat Mfg Japan KK, Shizuoka 4371412, Japan
[3] AZ Elect Mat USA Corp, Somerville, NJ 08876 USA
关键词
Directed self-assembly; organic high-chi block copolymers; topcoat-free; perpendicular lamellae and cylinders; THIN-FILMS; ORIENTATION; LITHOGRAPHY; DOMAINS; BULK;
D O I
10.2494/photopolymer.27.419
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
To extend the scaling beyond the most widely used poly(styrene-b-methyl methacrylate) (PS-b-PMMA), organic high-chi block copolymers (BCPs) were developed. Vertically oriented BCP domains were obtained by simple coat and bake process without application of an additional layer of a topcoat material. In addition, process-friendly conditions including low bake temperature (<200 degrees C) and short bake time (<= 5 min) provided a simple scheme to integrate these high-chi block copolymers to standard lithography process and pre-patterns defined by 193i lithography. Successful demonstration of directed self-assembly of these high-chi block copolymers on 193i-defined guiding pre-patterns offers a simple route to access well-aligned perpendicular lamellae and cylinders with a pitch less than 20 nm.
引用
收藏
页码:419 / 424
页数:6
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