KR102434699B1 - 확산방지층을 포함하는 다층구조체 및 이를 구비하는 소자 - Google Patents
확산방지층을 포함하는 다층구조체 및 이를 구비하는 소자 Download PDFInfo
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- KR102434699B1 KR102434699B1 KR1020150108864A KR20150108864A KR102434699B1 KR 102434699 B1 KR102434699 B1 KR 102434699B1 KR 1020150108864 A KR1020150108864 A KR 1020150108864A KR 20150108864 A KR20150108864 A KR 20150108864A KR 102434699 B1 KR102434699 B1 KR 102434699B1
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Abstract
Description
도 2는 본 발명의 다른 실시예에 따른 확산방지층을 포함하는 다층구조체를 보여주는 단면도이다.
도 3은 본 발명의 다른 실시예에 따른 확산방지층을 포함하는 다층구조체를 보여주는 단면도이다.
도 4는 본 발명의 실시예에 따른 확산방지층이 가질 수 있는 삼각 프리즘형 결정구조(trigonal prismatic crystal structure)를 보여주는 도면이다.
도 5는 도 4의 삼각 프리즘형 결정구조가 이차원적으로 연속 배열된 확산방지층의 측면도(side view)이다.
도 6은 도 4의 삼각 프리즘형 결정구조가 이차원적으로 연속 배열된 확산방지층의 상측 평면도(top view)이다.
도 7은 본 발명의 다른 실시예에 따른 확산방지층이 가질 수 있는 팔면체 결정구조(octahedral crystal structure)를 보여주는 도면이다.
도 8은 도 7의 팔면체 결정구조가 이차원적으로 연속 배열된 확산방지층의 측면도(side view)이다.
도 9는 도 7의 팔면체 결정구조가 이차원적으로 연속 배열된 확산방지층의 상측 평면도(top view)이다.
도 10은 본 발명의 실시예에 따른 확산방지층이 가질 수 있는 이차원적 원자 배열 구조를 예시적으로 보여주는 상측 평면도(top view)이다.
도 11은 도 10의 확산방지층의 측면도(side view)이다.
도 12는 본 발명의 실시예에 따른 확산방지층을 통해서 금속 원자(Cu 원자)가 이동하는 경우를 예시적으로 보여주는 모식도이다.
도 13은 본 발명의 실시예에 따른 확산방지층에 적용할 수 있는 MoS2층을 기판 상에 형성한 경우를 보여주는 TEM(transmission electron microscope) 사진이다.
도 14는 본 발명의 예시적인 일 실시예에 따른 확산방지층을 포함하는 다층구조체를 보여주는 단면도이다.
도 15는 도 14의 확산방지층의 확산 방지 효과를 보여주는 실험 데이터이다.
도 16은 본 발명의 예시적인 다른 실시예에 따른 확산방지층을 포함하는 다층구조체를 보여주는 단면도이다.
도 17은 도 16의 확산방지층의 확산 방지 효과를 보여주는 실험 데이터이다.
도 18은 본 발명의 다른 실시예에 따른 확산방지층을 포함하는 다층구조체를 보여주는 단면도이다.
도 19는 본 발명의 다른 실시예에 따른 확산방지층을 포함하는 다층구조체를 보여주는 단면도이다.
도 20은 본 발명의 다른 실시예에 따른 확산방지층을 보여주는 단면도이다.
도 21은 본 발명의 다른 실시예에 따른 확산방지층을 포함하는 다층구조체를 보여주는 단면도이다.
도 22는 본 발명의 다른 실시예에 따른 확산방지층을 포함하는 다층구조체를 보여주는 단면도이다.
도 23은 본 발명의 실시예에 따른 것으로, 확산방지층을 포함하는 전자소자(반도체소자)의 일부를 보여주는 단면도이다.
도 24는 본 발명의 다른 실시예에 따른 것으로, 확산방지층을 포함하는 전자소자(반도체소자)의 일부를 보여주는 단면도이다.
도 25는 본 발명의 실시예에 따른 확산방지층을 적용할 수 있는 전자소자(반도체소자)의 구성을 보여주는 단면도이다.
도 26은 본 발명의 실시예에 따른 확산방지층을 포함하는 전자소자(반도체소자)를 예시적으로 보여주는 단면도이다.
A11, A12 : 접착층 B10∼B12, B15, B16 : 확산방지층
L10∼L12, L15, L16 : 제1 물질층 L20∼L22, L25, L26 : 제2 물질층
M100, M110, M120 : 다층구조체 H10, H11 : 개구부
100, 101 : 하부구조물 110 : 반도체영역
111 : 요소층 120, 121 : 절연물질층
130, 131 : 확산방지층 140 : 도전성 플러그
141 : 도전체 141a : 도전성 플러그
141b : 전극부 150 : 전극
1000, 1100 : 기판부 2000, 2100 : 액티브 소자부
3000, 3100 : 연결배선부
Claims (26)
- 제1 물질층;
상기 제1 물질층과 이격된 제2 물질층; 및
상기 제1 및 제2 물질층 사이에 구비된 것으로, 그래핀과 다른 이차원 물질(2D material)을 포함하는 확산방지층;을 구비하며,
상기 제1 물질층은 절연체 또는 반도체이며, 상기 확산방지층은 상기 제1 물질층과 직접 접하는 다층구조체. - 제 1 항에 있어서,
상기 이차원 물질은 이차원적 결정구조를 갖는 금속 칼코게나이드계(metal chalcogenide-based) 물질을 포함하는 다층구조체. - 제 2 항에 있어서,
상기 금속 칼코게나이드계 물질은 Mo, W, Nb, V, Ta, Ti, Zr, Hf, Tc, Re, Ru, Co, Pd, Pt, Cu, Ga, In, Sn, Ge, Pb 중 적어도 하나의 금속 원소와 S, Se, Te, O 중 적어도 하나의 칼코겐(chalcogen) 원소를 포함하는 다층구조체. - 제 1 항에 있어서,
상기 이차원 물질은 TMDC(transition metal dichalcogenide) 물질을 포함하는 다층구조체. - 제 1 항에 있어서,
상기 이차원 물질은 삼각 프리즘형 결정구조(trigonal prismatic crystal structure) 또는 팔면체 결정구조(octahedral crystal structure)를 갖는 다층구조체. - 제 1 항에 있어서,
상기 확산방지층은 5 nm 이하의 두께를 갖는 다층구조체. - 제 1 항에 있어서,
상기 확산방지층은 3 nm 이하의 두께를 갖는 다층구조체. - 제 1 항에 있어서,
상기 확산방지층은 10-4 ∼ 10-2 Ω·cm 의 비저항(resistivity)을 갖는 다층구조체. - 제 1 항에 있어서,
상기 확산방지층은 도펀트(dopant)로 도핑된 다층구조체. - 제 1 항에 있어서,
상기 제2 물질층은 도전체인 다층구조체. - 삭제
- 제 1 항에 있어서,
하부구조물 상에 개구부를 갖는 절연물질층이 구비되고, 상기 확산방지층은 상기 개구부의 상기 절연물질층을 덮도록 구비되며, 상기 개구부 내부의 상기 확산방지층 상에 도전체가 구비되고,
상기 하부구조물 및 절연물질층 중 어느 하나의 적어도 일부는 상기 제1 물질층에 대응되고, 상기 도전체의 적어도 일부는 상기 제2 물질층에 대응되는 다층구조체. - 제 1 항에 있어서,
상기 제2 물질층과 상기 확산방지층 사이에 구비된 접착층(adhesion layer)을 더 포함하는 다층구조체. - 제 13 항에 있어서,
상기 접착층은 Mo, W, Nb, V, Ta, Ti, Zr, Hf, Tc, Re, Ru, Co, Pd, Pt, Cu, Ga, In, Sn, Ge 및 Pb 중 적어도 하나의 금속을 포함하는 다층구조체. - 제 13 항에 있어서,
상기 접착층은 상기 확산방지층에 포함된 금속 원소와 동일한 금속 원소를 포함하는 다층구조체. - 제 1 항에 있어서,
상기 확산방지층은 서로 다른 종류의 복수의 이차원 물질층을 포함하는 다층구조체. - 제 1 항에 있어서,
상기 다층구조체의 적어도 일부는 전자소자용 연결배선(interconnection)을 구성하는 다층구조체. - 청구항 1 내지 10, 및 12 내지 17 중 어느 하나에 기재된 다층구조체를 포함하는 소자.
- 하부구조물 상에 구비된 것으로, 개구부를 갖는 절연물질층;
상기 개구부의 상기 절연물질층을 덮도록 구비된 것으로, 그래핀과 다른 이차원 물질(2D material)을 포함하는 확산방지층; 및
상기 개구부 내부의 상기 확산방지층 상에 구비된 도전체;를 포함하며,
상기 확산방지층은 상기 절연물질층과 직접 접하는 전자소자. - 제 19 항에 있어서,
상기 이차원 물질은 이차원적 결정구조를 갖는 금속 칼코게나이드계(metal chalcogenide-based) 물질을 포함하는 전자소자. - 제 20 항에 있어서,
상기 금속 칼코게나이드계 물질은 Mo, W, Nb, V, Ta, Ti, Zr, Hf, Tc, Re, Ru, Co, Pd, Pt, Cu, Ga, In, Sn, Ge, Pb 중 적어도 하나의 금속 원소와 S, Se, Te, O 중 적어도 하나의 칼코겐(chalcogen) 원소를 포함하는 전자소자. - 제 19 항에 있어서,
상기 확산방지층은 5 nm 이하의 두께를 갖는 전자소자. - 제 19 항에 있어서,
상기 하부구조물은 반도체영역을 포함하고,
상기 확산방지층은 상기 반도체영역과 상기 도전체 사이의 물질 확산을 방지하는 전자소자. - 제 19 항에 있어서,
상기 확산방지층은 상기 절연물질층과 상기 도전체 사이의 물질 확산을 방지하는 전자소자. - 제 19 항에 있어서,
상기 확산방지층과 상기 도전체 사이에 구비된 접착층(adhesion layer)을 더 포함하는 전자소자. - 제 19 항에 있어서, 상기 전자소자는,
기판부(substrate portion);
상기 기판부 상에 구비된 액티브 소자부(active device portion); 및
상기 액티브 소자부 상에 구비된 연결배선부(interconnect portion);를 포함하는 전자소자.
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| US15/172,908 US10134628B2 (en) | 2015-07-31 | 2016-06-03 | Multilayer structure including diffusion barrier layer and device including the multilayer structure |
| EP16176425.3A EP3125291B1 (en) | 2015-07-31 | 2016-06-27 | Multilayer structure including diffusion barrier layer and device including the multilayer structure |
| CN201610601246.3A CN106410002B (zh) | 2015-07-31 | 2016-07-27 | 包括扩散阻挡层的多层结构体、包括其的器件和电子器件 |
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