KR101458038B1 - 은을 포함한 배선을 구비한 반도체 구조체와 그 형성 방법 - Google Patents
은을 포함한 배선을 구비한 반도체 구조체와 그 형성 방법 Download PDFInfo
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- KR101458038B1 KR101458038B1 KR1020097013755A KR20097013755A KR101458038B1 KR 101458038 B1 KR101458038 B1 KR 101458038B1 KR 1020097013755 A KR1020097013755 A KR 1020097013755A KR 20097013755 A KR20097013755 A KR 20097013755A KR 101458038 B1 KR101458038 B1 KR 101458038B1
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- rhodium
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- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
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- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
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- H01L23/53204—Conductive materials
- H01L23/53209—Conductive materials based on metals, e.g. alloys, metal silicides
- H01L23/53228—Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (17)
- 반도체 구조체(200)를 형성하는 방법으로서,유전체 물질의 층(210)을 포함하는 반도체 기판(201)을 제공하는 단계와, 여기서 상기 유전체 물질의 층(210) 내에는 접촉 비아(contact via)(211, 212, 213)가 제공되고, 상기 접촉 비아(211, 212, 213)는 상기 반도체 기판(201) 내에 그리고 위에 형성되는 회로 소자(202)의 일부분(205, 208, 209)을 노출시키며;은(silver)을 포함하는 물질로 상기 접촉 비아(211, 212, 213)를 충전(filling)하는 단계와; 그리고상기 은을 포함하는 물질로 상기 접촉 비아(211, 212, 213)를 충전한 이후에, 상기 회로 소자(202)의 상기 노출된 일부분(205, 208, 209) 상에 은 실리사이드(silver silicide)가 형성되도록 어닐링 공정(annealing process)을 수행하는 단계를 포함하는 것을 특징으로 하는 반도체 구조체 형성 방법.
- 제1항에 있어서,상기 은을 포함하는 물질로 상기 접촉 비아를 충전하기 이전에, 상기 접촉 비아의 측벽과 바닥 표면 중 적어도 하나 위에 로듐(rhodium)을 포함하는 물질의 층(214)을 형성하는 단계를 더 포함하며, 상기 로듐을 포함하는 물질의 층(214)은 원자층 증착(atomic layer deposition)과 스퍼터링(sputtering) 중 하나에 의해 형성되는 것을 특징으로 하는 반도체 구조체 형성 방법.
- 제2항에 있어서,상기 로듐을 포함하는 물질의 층(214)은 추가적으로 상기 접촉 비아 바깥의 상기 반도체 기판의 일부분들 위에 형성되는 것을 특징으로 하는 반도체 구조체 형성 방법.
- 제1항에 있어서,상기 은을 포함하는 물질로 상기 접촉 비아를 충전하는 단계는, 상기 반도체 기판 위에 상기 은을 포함하는 물질의 층(216)을 증착하는 것을 포함하는 것을 특징으로 하는 반도체 구조체 형성 방법.
- 삭제
- 제4항에 있어서,상기 접촉 비아 바깥에 위치된 상기 은을 포함하는 물질의 층(216)의 일부분들을 제거하는 단계를 더 포함하는 것을 특징으로 하는 반도체 구조체 형성 방법.
- 제3항에 있어서,상기 접촉 비아 바깥에 위치한 상기 로듐을 포함하는 물질의 층(214)의 일부분들을 제거하는 단계를 더 포함하는 것을 특징으로 하는 반도체 구조체 형성 방법.
- 제1항에 있어서,상기 반도체 기판(201) 위에 로듐을 포함하는 물질의 층(217)을 형성하는 단계를 더 포함하며, 상기 로듐을 포함하는 물질의 층(217)을 형성하는 단계는 상기 접촉 비아를 상기 은을 포함하는 물질로 충전한 이후에 수행되는 것을 특징으로 하는 반도체 구조체 형성 방법.
- 제8항에 있어서,상기 로듐을 포함하는 물질의 층(217)을 형성하는 단계 이후에, 상기 은을 포함하는 물질로 충전된 상기 접촉 비아를 덮는 마스크(218)를 형성하는 단계와; 그리고상기 마스크(218)에 의해 덮이지 않은 상기 로듐을 포함하는 물질의 층(217)의 일부분들을 제거하도록 된 식각 공정을 수행하는 단계를 더 포함하는 것을 특징으로 하는 반도체 구조체 형성 방법.
- 제1항에 있어서,상기 은을 포함하는 물질로 충전된 상기 접촉 비아 위에 전기 전도성 라인(222, 223, 224)을 형성하는 단계를 더 포함하며, 상기 은을 포함하는 물질로 충전된 상기 접촉 비아는, 상기 전기 전도성 라인과 상기 접촉 비아 아래의 상기 반도체 기판 내에 형성된 회로 소자(208, 206, 209)와의 사이에 전기적 연결을 제공하는 것을 특징으로 하는 반도체 구조체 형성 방법.
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Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006056620A DE102006056620B4 (de) | 2006-11-30 | 2006-11-30 | Halbleiterstruktur und Verfahren zu ihrer Herstellung |
DE102006056620.3 | 2006-11-30 | ||
US11/776,155 US7638428B2 (en) | 2006-11-30 | 2007-07-11 | Semiconductor structure and method of forming the same |
US11/776,155 | 2007-07-11 | ||
PCT/US2007/024564 WO2008066884A1 (en) | 2006-11-30 | 2007-11-29 | Semiconductor structure with interconnect comprising silver and method of forming the same |
Publications (2)
Publication Number | Publication Date |
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KR20090094356A KR20090094356A (ko) | 2009-09-04 |
KR101458038B1 true KR101458038B1 (ko) | 2014-11-03 |
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KR1020097013755A Expired - Fee Related KR101458038B1 (ko) | 2006-11-30 | 2007-11-29 | 은을 포함한 배선을 구비한 반도체 구조체와 그 형성 방법 |
Country Status (2)
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KR (1) | KR101458038B1 (ko) |
WO (1) | WO2008066884A1 (ko) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10116907A (ja) * | 1996-10-07 | 1998-05-06 | Motorola Inc | 半導体装置を形成する方法 |
JP2006120870A (ja) * | 2004-10-21 | 2006-05-11 | Ebara Corp | 配線形成方法及び装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4687552A (en) * | 1985-12-02 | 1987-08-18 | Tektronix, Inc. | Rhodium capped gold IC metallization |
US5656542A (en) * | 1993-05-28 | 1997-08-12 | Kabushiki Kaisha Toshiba | Method for manufacturing wiring in groove |
JP4221100B2 (ja) * | 1999-01-13 | 2009-02-12 | エルピーダメモリ株式会社 | 半導体装置 |
US7205228B2 (en) * | 2003-06-03 | 2007-04-17 | Applied Materials, Inc. | Selective metal encapsulation schemes |
-
2007
- 2007-11-29 KR KR1020097013755A patent/KR101458038B1/ko not_active Expired - Fee Related
- 2007-11-29 WO PCT/US2007/024564 patent/WO2008066884A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10116907A (ja) * | 1996-10-07 | 1998-05-06 | Motorola Inc | 半導体装置を形成する方法 |
JP2006120870A (ja) * | 2004-10-21 | 2006-05-11 | Ebara Corp | 配線形成方法及び装置 |
Also Published As
Publication number | Publication date |
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WO2008066884A8 (en) | 2009-07-16 |
WO2008066884A1 (en) | 2008-06-05 |
KR20090094356A (ko) | 2009-09-04 |
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