KR101961938B1 - 화학 증폭 포지티브형 레지스트 조성물 및 레지스트 패턴 형성 방법 - Google Patents
화학 증폭 포지티브형 레지스트 조성물 및 레지스트 패턴 형성 방법 Download PDFInfo
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- KR101961938B1 KR101961938B1 KR1020160022639A KR20160022639A KR101961938B1 KR 101961938 B1 KR101961938 B1 KR 101961938B1 KR 1020160022639 A KR1020160022639 A KR 1020160022639A KR 20160022639 A KR20160022639 A KR 20160022639A KR 101961938 B1 KR101961938 B1 KR 101961938B1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2037—Exposure with X-ray radiation or corpuscular radiation, through a mask with a pattern opaque to that radiation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Plasma & Fusion (AREA)
- Materials For Photolithography (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Toxicology (AREA)
Abstract
Description
공정
실시예 1 내지 63, 비교예 1 내지 6
실시예 | 산확산 제어제 (pbw) |
수지 1 (pbw) |
수지 2 (pbw) |
고분자 화합물(D) (pbw) |
산발생제 (pbw) |
용제 1 (pbw) |
용제 2 (pbw) |
용제 3 (pbw) |
|
1 | Salt-1 (3) |
폴리머 A1 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
2 | Salt-1 (3) |
폴리머 A1 (80) |
PAG-B (9) |
PGMEA (840) |
CyH (2,130) |
||||
3 | Salt-1 (3) |
폴리머 A1 (80) |
PAG-C (9) |
PGMEA (840) |
CyH (2,130) |
||||
4 | Salt-1 (3) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
5 | Salt-1 (3) |
폴리머 A3 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
6 | Salt-1 (3) |
폴리머 P1 (40) |
폴리머 A1 (40) |
PGMEA (840) |
CyH (2,130) |
||||
7 | Salt-1 (3) |
폴리머 P1 (40) |
폴리머 A2 (40) |
PGMEA (840) |
CyH (2,130) |
||||
8 | Salt-1 (3) |
폴리머 P1 (40) |
폴리머 A3 (40) |
PGMEA (840) |
CyH (2,130) |
||||
9 | Salt-2 (3) |
폴리머 A1 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
10 | Salt-2 (3) |
폴리머 A1 (80) |
PAG-B (9) |
PGMEA (840) |
CyH (2,130) |
||||
11 | Salt-2 (3) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
12 | Salt-2 (3) |
폴리머 A3 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
13 | Salt-2 (3) |
폴리머 P1 (40) |
폴리머 A1 (40) |
PGMEA (840) |
CyH (2,130) |
||||
14 | Salt-2 (3) |
폴리머 P1 (40) |
폴리머 A2 (40) |
PGMEA (840) |
CyH (2,130) |
||||
15 | Salt-2 (3) |
폴리머 P1 (40) |
폴리머 A3 (40) |
PGMEA (840) |
CyH (2,130) |
||||
16 | Salt-3 (3) |
폴리머 A1 (80) |
PAG-A (9) |
PGMEA (255) |
EL (1,640) |
PGME (1,310) |
|||
17 | Salt-3 (3) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (255) |
EL (1,640) |
PGME (1,310) |
|||
18 | Salt-3 (3) |
폴리머 A3 (80) |
PAG-A (9) |
PGMEA (255) |
EL (1,640) |
PGME (1,310) |
|||
19 | Salt-3 (3) |
폴리머 P1 (40) |
폴리머 A1 (40) |
PGMEA (255) |
EL (1,640) |
PGME (1,310) |
|||
20 | Salt-3 (3) |
폴리머 P1 (40) |
폴리머 A2 (40) |
PGMEA (255) |
EL (1,640) |
PGME (1,310) |
|||
21 | Salt-3 (3) |
폴리머 P1 (40) |
폴리머 A3 (40) |
PGMEA (255) |
EL (1,640) |
PGME (1,310) |
|||
22 | Salt-4 (3) |
폴리머 A1 (80) |
PAG-A (9) |
EL (1,850) |
PGME (1,280) |
||||
23 | Salt-4 (3) |
폴리머 A2 (80) |
PAG-A (9) |
EL (1,850) |
PGME (1,280) |
||||
24 | Salt-4 (3) |
폴리머 A3 (80) |
PAG-A (9) |
EL (1,850) |
PGME (1,280) |
||||
25 | Salt-4 (3) |
폴리머 P1 (40) |
폴리머 A1 (40) |
EL (1,850) |
PGME (1,280) |
||||
26 | Salt-5 (2.5) |
폴리머 A1 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
27 | Salt-5 (2.5) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
28 | Salt-5 (2.5) |
폴리머 A2 (80) |
PAG-C (9) |
PGMEA (840) |
CyH (2,130) |
||||
29 | Salt-5 (2.5) |
폴리머 A2 (80) |
폴리머 B (3) |
PAG-C (9) |
PGMEA (840) |
CyH (2,130) |
|||
30 | Salt-5 (2.5) |
폴리머 A3 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
31 | Salt-5 (2.5) |
폴리머 P1 (40) |
폴리머 A1 (40) |
PGMEA (840) |
CyH (2,130) |
||||
32 | Salt-6 (2.2) |
폴리머 A1 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
33 | Salt-6 (2.2) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
34 | Salt-6 (2.2) |
폴리머 A3 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
35 | Salt-6 (2.2) |
폴리머 P1 (40) |
폴리머 A1 (40) |
PGMEA (840) |
CyH (2,130) |
||||
36 | Salt-7 (2.0) |
폴리머 A1 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
37 | Salt-7 (2.0) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
38 | Salt-7 (2.0) |
폴리머 A3 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
||||
39 | Salt-7 (2.0) |
폴리머 P1 (40) |
폴리머 A1 (40) |
PGMEA (840) |
CyH (2,130) |
실시예 | 산확산 제어제 (pbw) |
수지 1 (pbw) |
수지 2 (pbw) |
고분자 화합물(D) (pbw) |
산발생제 (pbw) |
용제 1 (pbw) |
용제 2 (pbw) |
용제 3 (pbw) |
40 | Salt-8 (2.2) |
폴리머 A1 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
|||
41 | Salt-8 (2.2) |
폴리머 A1 (80) |
PAG-B (9) |
PGMEA (840) |
CyH (2,130) |
|||
42 | Salt-8 (2.2) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
|||
43 | Salt-8 (2.2) |
폴리머 A3 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
|||
44 | Salt-8 (2.2) |
폴리머 P1 (40) |
폴리머 A1 (40) |
PGMEA (840) |
CyH (2,130) |
|||
45 | Salt-9 (3.1) |
폴리머 A1 (80) |
PAG-A (9) |
PGMEA (840) |
EL (2,130) |
|||
46 | Salt-9 (3.1) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
EL (2,130) |
|||
47 | Salt-9 (3.1) |
폴리머 A2 (80) |
PAG-C (9) |
PGMEA (840) |
EL (2,130) |
|||
48 | Salt-9 (3.1) |
폴리머 A2 (80) |
폴리머 B (3) |
PAG-C (9) |
PGMEA (840) |
EL (2,130) |
||
49 | Salt-9 (3.1) |
폴리머 P1 (40) |
폴리머 A1 (40) |
PGMEA (840) |
EL (2,130) |
|||
50 | Salt-10 (3.0) |
폴리머 A1 (80) |
PAG-A (9) |
PGMEA (840) |
EL (2,130) |
|||
51 | Salt-10 (3.0) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
EL (2,130) |
|||
52 | Salt-10 (3.0) |
폴리머 A2 (80) |
PAG-C (9) |
PGMEA (840) |
EL (2,130) |
|||
53 | Salt-10 (3.0) |
폴리머 A2 (80) |
폴리머 B (3) |
PAG-C (9) |
PGMEA (840) |
EL (2,130) |
||
54 | Salt-10 (3.0) |
폴리머 P1 (40) |
폴리머 A1 (40) |
PGMEA (840) |
EL (2,130) |
|||
55 | Salt-11 (2.4) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
EL (2,130) |
|||
56 | Salt-11 (2.4) |
폴리머 A2 (80) |
PAG-C (9) |
PGMEA (840) |
EL (2,130) |
|||
57 | Salt-11 (2.4) |
폴리머 A2 (80) |
폴리머 B (3) |
PAG-C (9) |
PGMEA (840) |
EL (2,130) |
||
58 | Salt-12 (2.2) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
EL (2,130) |
|||
59 | Salt-12 (2.2) |
폴리머 A2 (80) |
PAG-C (9) |
PGMEA (840) |
EL (2,130) |
|||
60 | Salt-12 (2.2) |
폴리머 A2 (80) |
폴리머 B (3) |
PAG-C (9) |
PGMEA (840) |
EL (2,130) |
||
61 | Salt-13 (2.1) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
EL (2,130) |
|||
62 | Salt-13 (2.1) |
폴리머 A2 (80) |
PAG-C (9) |
PGMEA (840) |
EL (2,130) |
|||
63 | Salt-13 (2.1) |
폴리머 A2 (80) |
폴리머 B (3) |
PAG-C (9) |
PGMEA (840) |
EL (2,130) |
||
비교예1 | 비교 Salt-1 (4) |
폴리머 A1 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
|||
비교예2 | 비교 Salt-1 (4) |
폴리머 A1 (80) |
PAG-B (9) |
PGMEA (840) |
CyH (2,130) |
|||
비교예3 | 비교 Salt-1 (4) |
폴리머 A1 (80) |
PAG-C (9) |
PGMEA (840) |
CyH (2,130) |
|||
비교예4 | 비교 Salt-1 (4) |
폴리머 A2 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
|||
비교예5 | 비교 Salt-1 (4) |
폴리머 A3 (80) |
PAG-A (9) |
PGMEA (840) |
CyH (2,130) |
|||
비교예6 | 비교 Salt-1 (4) |
폴리머 P1 (40) |
폴리머 A1 (40) |
PGMEA (840) |
CyH (2,130) |
최적 노광량 (μC/cm2) |
한계 해상성 (nm) |
LER (nm) |
패턴 형상 | |
실시예 1 | 50 | 35 | 4.5 | 직사각형 |
실시예 2 | 50 | 40 | 4.8 | 직사각형 |
실시예 3 | 49 | 35 | 4.4 | 직사각형 |
실시예 4 | 50 | 35 | 4.7 | 직사각형 |
실시예 5 | 51 | 35 | 4.6 | 직사각형 |
실시예 6 | 52 | 35 | 4.4 | 직사각형 |
실시예 7 | 50 | 35 | 4.5 | 직사각형 |
실시예 8 | 49 | 35 | 4.5 | 직사각형 |
실시예 9 | 48 | 35 | 4.7 | 직사각형 |
실시예 10 | 49 | 40 | 4.8 | 직사각형 |
실시예 11 | 50 | 35 | 4.7 | 직사각형 |
실시예 12 | 50 | 35 | 4.7 | 직사각형 |
실시예 13 | 49 | 35 | 4.6 | 직사각형 |
실시예 14 | 50 | 35 | 4.4 | 직사각형 |
실시예 15 | 51 | 35 | 4.5 | 직사각형 |
실시예 16 | 51 | 35 | 4.8 | 직사각형 |
실시예 17 | 50 | 35 | 4.7 | 직사각형 |
실시예 18 | 50 | 35 | 4.8 | 직사각형 |
실시예 19 | 50 | 35 | 4.5 | 직사각형 |
실시예 20 | 51 | 35 | 4.5 | 직사각형 |
실시예 21 | 51 | 35 | 4.6 | 직사각형 |
실시예 22 | 52 | 35 | 4.7 | 직사각형 |
실시예 23 | 52 | 35 | 4.8 | 직사각형 |
실시예 24 | 51 | 35 | 4.7 | 직사각형 |
실시예 25 | 52 | 35 | 4.6 | 직사각형 |
실시예 26 | 51 | 40 | 4.5 | 직사각형 |
실시예 27 | 51 | 40 | 4.5 | 직사각형 |
실시예 28 | 51 | 35 | 4.4 | 직사각형 |
실시예 29 | 50 | 35 | 4.3 | 직사각형 |
실시예 30 | 52 | 40 | 4.6 | 직사각형 |
실시예 31 | 52 | 35 | 4.4 | 직사각형 |
실시예 32 | 52 | 40 | 4.6 | 직사각형 |
실시예 33 | 51 | 40 | 4.6 | 직사각형 |
실시예 34 | 52 | 40 | 4.6 | 직사각형 |
실시예 35 | 52 | 40 | 4.5 | 직사각형 |
실시예 36 | 51 | 40 | 4.5 | 직사각형 |
실시예 37 | 52 | 40 | 4.4 | 직사각형 |
실시예 38 | 52 | 40 | 4.4 | 직사각형 |
실시예 39 | 53 | 35 | 4.4 | 직사각형 |
최적 노광량 (μC/cm2) |
한계 해상성 (nm) |
LER (nm) |
패턴 형상 | |
실시예 40 | 51 | 45 | 4.8 | 직사각형 |
실시예 41 | 52 | 45 | 4.9 | 직사각형 |
실시예 42 | 53 | 45 | 4.7 | 직사각형 |
실시예 43 | 52 | 45 | 4.6 | 직사각형 |
실시예 44 | 53 | 45 | 4.5 | 직사각형 |
실시예 45 | 53 | 35 | 4.5 | 직사각형 |
실시예 46 | 54 | 37 | 4.4 | 직사각형 |
실시예 47 | 52 | 35 | 4.3 | 직사각형 |
실시예 48 | 52 | 35 | 4.2 | 직사각형 |
실시예 49 | 51 | 40 | 4.8 | 직사각형 |
실시예 50 | 53 | 37 | 4.5 | 직사각형 |
실시예 51 | 52 | 40 | 4.5 | 직사각형 |
실시예 52 | 51 | 35 | 4.4 | 직사각형 |
실시예 53 | 52 | 35 | 4.3 | 직사각형 |
실시예 54 | 51 | 37 | 4.7 | 직사각형 |
실시예 55 | 51 | 40 | 4.6 | 직사각형 |
실시예 56 | 52 | 35 | 4.4 | 직사각형 |
실시예 57 | 52 | 35 | 4.3 | 직사각형 |
실시예 58 | 52 | 37 | 4.6 | 직사각형 |
실시예 59 | 51 | 35 | 4.4 | 직사각형 |
실시예 60 | 52 | 35 | 4.2 | 직사각형 |
실시예 61 | 49 | 37 | 4.6 | 직사각형 |
실시예 62 | 51 | 35 | 4.4 | 직사각형 |
실시예 63 | 52 | 35 | 4.3 | 직사각형 |
비교예 1 | 49 | 55 | 5.6 | 역 테이퍼 |
비교예 2 | 50 | 55 | 5.7 | 역 테이퍼 |
비교예 3 | 51 | 50 | 5.2 | 역 테이퍼 |
비교예 4 | 50 | 55 | 5.6 | 역 테이퍼 |
비교예 5 | 49 | 55 | 5.5 | 역 테이퍼 |
비교예 6 | 49 | 50 | 5.4 | 역 테이퍼 |
최적 노광량 (μC/cm2) |
한계 해상성 (nm) |
|
실시예 1 | 48 | 60 |
실시예 2 | 48 | 70 |
실시예 3 | 50 | 60 |
실시예 4 | 49 | 60 |
실시예 5 | 49 | 60 |
실시예 6 | 50 | 60 |
실시예 7 | 49 | 60 |
실시예 8 | 48 | 60 |
비교예 1 | 47 | 80 |
비교예 2 | 48 | 90 |
비교예 3 | 49 | 80 |
비교예 4 | 48 | 80 |
비교예 5 | 47 | 80 |
비교예 6 | 47 | 80 |
일부 실시형태를 기술하였으나, 상기 교시내용에 많은 변형이 가해질 수 있다. 따라서 본 발명은 첨부 청구범위에서 벗어나지 않고 구체적으로 기술된 것과 달리 실시될 수도 있음이 이해되어야 한다.
Claims (10)
- (A) 하기 일반식 (1) 또는 (2)로 표시되는 오늄염 화합물 및
(B) 하기 일반식 (U-1)로 표시되는 반복단위를 포함하고, 산의 작용에 의해 분해되고, 알칼리 현상액 중에서의 용해도가 증대하는 수지를 포함하며,
식 (1)로 표시되는 오늄염 화합물의 음이온부가 하기 식 (1)-1 내지 (1)-65로부터 선택되고, 식 (2)로 표시되는 오늄염 화합물의 음이온부가 하기 식 (2)-1 내지 (2)-43으로부터 선택되는,
고에너지선 리소그래피를 위한 화학 증폭 포지티브형 레지스트 조성물:
식 중, R01, R02, R03 및 R04는 각각 독립적으로 수소 원자, -L-CO2 -, 혹은 헤테로 원자로 치환되어 있어도 되고, 헤테로 원자가 개재해도 되는 직쇄상 C1-C20, 또는 분지상 또는 환상의 C3-C20 1가 탄화 수소기를 나타내고, 또는 R01과 R02, R02와 R03, 또는 R03과 R04의 쌍이, 서로 결합하여 이것들이 결합하는 탄소 원자와 함께 환을 형성해도 되고, L은 단결합을 나타내거나, 혹은 헤테로 원자로 치환되어 있어도 되고 헤테로 원자가 개재해도 되는 직쇄상 C1-C20, 또는 분지상 또는 환상의 C3-C20 2가 탄화 수소기를 나타내고, R05는 수소 원자 또는 헤테로 원자로 치환되어 있어도 되고 헤테로 원자가 개재해도 되는 직쇄상 C1-C20, 또는 분지상 또는 환상의 C3-C20 1가 탄화 수소기를 나타내고, R06, R07, R08, R09, R010 및 R011은 각각 독립적으로 수소 원자, 혹은 헤테로 원자로 치환되어 있어도 되고 헤테로 원자가 개재해도 되는 직쇄상 C1-C20, 또는 분지상 또는 환상의 C3-C20 1가 탄화 수소기를 나타내고, 또는 R06과 R07 쌍이 서로 결합하여 이것들이 결합하는 탄소 원자와 함께 환을 형성해도 되고, R08과 R011 쌍이 서로 결합하여 이것들이 결합하는 탄소 원자와 그것들 사이의 탄소 원자와 함께 환을 형성해도 되고, R09와 R010 쌍이 서로 결합하여 이것들이 결합하는 질소 원자와 함께 환을 형성해도 되고, j는 0 또는 1이며, j=0인 경우에는 0≤k≤1, j=1인 경우에는 0≤k≤3이고, 그리고 Z+는 하기 일반식 (a)로 표시되는 설포늄 양이온 또는 일반식 (b)로 표시되는 아이오도늄 양이온을 나타내며;
식 중, R100, R200 및 R300은 각각 독립적으로 헤테로 원자로 치환되어 있어도 되고 헤테로 원자가 개재해도 되는 직쇄상 C1-C20, 또는 분지상 또는 환상의 C3-C20 1가 탄화 수소기를 나타내고, 또는 R100, R200 및 R300 중 어느 2개 이상이 서로 결합하여 황 원자와 함께 환을 형성해도 되고, R400 및 R500은 각각 독립적으로 헤테로 원자로 치환되어 있어도 되고 헤테로 원자가 개재해도 되는 직쇄상 C1-C20, 또는 분지상 또는 환상의 C3-C20 1가 탄화 수소기를 나타내며; 그리고
으로 표시되는 부분 구조는 질소 원자를 개재하는 환상 구조를 나타내고, 이 환상 구조를 형성하기 위한 탄소 원자에 결합하고 있는 수소 원자는 직쇄상 C1-C20, 또는 분지상 또는 환상의 C3-C20 1가 탄화 수소기, 또는 -L-CO2 -로 치환되어 있어도 되고, 또한 상기 환상 구조를 형성하기 위한 탄소 원자는 일부가 황 원자, 산소 원자, 혹은 질소 원자로 치환되어 있어도 되고, 단, 상기 식 (1)에 있어서, 치환기 -L-CO2 -를 반드시 1개 가지며;
식 중, q는 0 또는 1을 나타내고, r은 0 내지 2의 정수를 나타내고, R1은 수소 원자, 불소 원자, 메틸기 및 트라이플루오로메틸기 중 어느 하나를 나타내고, R2는 각각 독립적으로 수소 원자 또는 C1-C6 알킬기를 나타내고, B1은 단결합, 또는 에터 결합을 포함해도 되는 C1-C10 알킬렌기를 나타내고, a는 a≤5+2r-b를 만족하는 정수이고, b는 1 내지 3의 정수이다.
- 제 1 항에 있어서, 상기 수지 (B)는 하기 일반식 (U-3) 및 일반식 (U-4)로 표시되는 반복단위 중 적어도 1개 이상을 더 포함하는 것을 특징으로 하는 레지스트 조성물:
식 중, f는 0 내지 6의 정수이고, R3은 각각 독립적으로 수소 원자, 임의로 할로젠 치환되어 있어도 되는 C1-C6 알킬기 또는 1차 혹은 2차 알콕시기, 또는 임의로 할로젠 치환되어 있어도 되는 C1-C7 알킬카본일옥시기이고, g는 0 내지 4의 정수이고, R4는 각각 독립적으로 수소 원자, 임의로 할로젠 치환되어 있어도 되는 C1-C6 알킬기 또는 1차 혹은 2차 알콕시기, 또는 임의로 할로젠 치환되어 있어도 되는 C1-C7 알킬카본일옥시기이다. - 제 1 항에 있어서, 상기 수지 (B)는 하기 일반식 (a1), (a2) 및 (a3)로 표시되는 반복단위를 적어도 1개 더 함유하는 것을 특징으로 하는 레지스트 조성물:
식 중, R12는 각각 독립적으로 수소 원자 또는 메틸기, R13은 단결합, 페닐렌기, -O-R22-, 또는 -C(=O)-Z2-R22-이고, Z2는 산소 원자 또는 NH, R22는 직쇄상 C1-C6 알킬렌기, 분지상 C2-C6 알킬렌기, 환상의 C3-C6 알킬렌기, 직쇄상 C2-C6 알켄일렌기, 분지상 C2-C6 알켄일렌기, 환상의 C3-C6 알켄일렌기 또는 페닐렌기이며, 카본일기(-CO-), 에스터기(-COO-), 에터기(-O-) 또는 하이드록시기를 포함하고 있어도 되고, L"은 단결합, 또는 -Z3-C(=O)-O-를 나타내고, Z3은 헤테로 원자로 치환되어 있어도 되고 헤테로 원자가 개재해도 되는 직쇄상 C1-C20 2가 탄화 수소기, 분지상 C2-C20 2가 탄화 수소기 또는 환상의 C3-C20 2가 탄화 수소기를 나타내고, Z1은 단결합, 메틸렌기, 에틸렌기, 페닐렌기, 불소화된 페닐렌기, -O-R23-, 또는 -C(=O)-Z4-R23-이고, Z4는 산소 원자 또는 NH, R23은 직쇄상 C1-C6 알킬렌기, 분지상 C2-C6 알킬렌기, 환상의 C3-C6 알킬렌기, 직쇄상 C2-C6 알켄일렌기, 분지상 C2-C6 알켄일렌기, 환상의 C3-C6 알켄일렌기 또는 페닐렌기이며, 카본일기, 에스터기, 에터기 또는 하이드록시기를 포함하고 있어도 되고, M-은 비구핵성 대향 이온을 나타내고, R14, R15, R16, R17, R18, R19, R20, 및 R21은 각각 독립적으로 직쇄상 C1-C20, 또는 분지상 또는 환상의 C3-C20 1가 탄화 수소기를 나타내고, 또한 이들 R14 내지 R21 중 1가 탄화 수소기의 수소 원자의 일부가 산소 원자, 황 원자, 질소 원자 및 할로젠 원자로부터 선택되는 헤테로 원자와 치환되어 있어도 되고 산소 원자, 황 원자 및 질소 원자로부터 선택되는 헤테로 원자가 개재해 있어도 되며, 그 결과 하이드록시기, 사이아노기, 카본일기, 에터 결합, 에스터 결합, 설폰산 에스터 결합, 카보네이트 결합, 락톤환, 설톤환, 카복실산 무수물 또는 할로 알킬기를 형성하거나 또는 개재해도 되며, R14와 R15 쌍이 서로 결합하여 황 원자와 함께 환을 형성해도 되고, 또는 R16, R17 및 R18 중 어느 2개 이상, 또는 R19, R20 및 R21 중 어느 2개 이상이 서로 결합하여 식 중의 황 원자와 함께 환을 형성해도 된다. - 제 1 항에 있어서, 하기 일반식 (3)으로 표시되는 반복단위와, 적어도 1개의 불소 원자를 포함하는 하기 일반식 (4), (5), (6) 및 (7)로 표시되는 반복단위로부터 선택되는 적어도 하나의 반복단위를 갖는 고분자 화합물 (D)를 더 포함하는 것을 특징으로 하는 레지스트 조성물:
식 중, R50은 수소 원자 또는 메틸기를 나타내고, R51은 수소 원자, 또는 헤테로 원자로 치환되어 있어도 헤테로 원자가 개재해도 되는 직쇄상 C1-C5 1가 탄화 수소기 또는 분지상의 C2-C5 1가 탄화 수소기를 나타내고, R52는 헤테로 원자로 치환되어 있어도 헤테로 원자가 개재해도 되는 직쇄상 C1-C5 1가 탄화 수소기 또는 분지상의 C2-C5 1가 탄화 수소기를 나타내고, R53은 각각 독립적으로 수소 원자, 불소 원자, 메틸기 또는 트라이플루오로메틸기를 나타내고, R53a 및 R53b는 각각 독립적으로 수소 원자, 또는 직쇄상 C1-C10 알킬기, 분지상 C2-C10 알킬기 또는 환상의 C3-C10 알킬기를 나타내고, R54는 각각 독립적으로 수소 원자, 직쇄상 C1-C15 1가 탄화 수소기 또는 불소화 1가 탄화 수소기, 분지상 C2-C15 1가 탄화 수소기 또는 불소화 1가 탄화 수소기, 환상의 C3-C15 1가 탄화 수소기 또는 불소화 1가 탄화 수소기, 또는 산 불안정기를 나타내고, R54가 1가 탄화 수소기 또는 불소화 1가 탄화 수소기인 경우, 탄소-탄소 결합 사이에, 에터 결합(-O-) 또는 카본일기(-C(=O)-)가 개재해 있어도 되며, m은 1 내지 3의 정수이고, n은 0≤n≤5+2p-m을 만족하는 정수이고, p는 0 또는 1이고, v는 1 내지 3의 정수이고, X1은 단결합, -C(=O)O- 또는 -C(=O)NH-를 나타내고, E는 직쇄상 C1-C20 (v+1)가의 탄화 수소기 또는 불소화 탄화 수소기, 분지상 C2-C20 (v+1)가의 탄화 수소기 또는 불소화 탄화 수소기, 또는 환상의 C3-C20 (v+1)가의 탄화 수소기 또는 불소화 탄화 수소기이다. - 피가공 기판 위에 제 1 항에 기재된 레지스트 조성물을 사용하여 레지스트막을 형성하는 공정, 레지스트막에 고에너지선을 패턴 노광하는 공정, 및 노광된 레지스트막을 알칼리 현상액을 사용하여 현상하여 레지스트 패턴을 형성하는 공정을 포함하는 것을 특징으로 하는 레지스트 패턴 형성 방법.
- 제 6 항에 있어서, 상기 고에너지선은 EUV 또는 EB 인 것을 특징으로 하는 레지스트 패턴 형성 방법.
- 제 6 항에 있어서, 상기 피가공 기판의 최표면은 크로뮴을 포함하는 재료로 이루어지는 것을 특징으로 하는 레지스트 패턴 형성 방법.
- 제 6 항에 있어서, 상기 피가공 기판은 포토마스크 블랭크인 것을 특징으로 하는 레지스트 패턴 형성 방법.
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