KR100571896B1 - 반도체 장치의 제조 방법 - Google Patents
반도체 장치의 제조 방법 Download PDFInfo
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- KR100571896B1 KR100571896B1 KR1020050042561A KR20050042561A KR100571896B1 KR 100571896 B1 KR100571896 B1 KR 100571896B1 KR 1020050042561 A KR1020050042561 A KR 1020050042561A KR 20050042561 A KR20050042561 A KR 20050042561A KR 100571896 B1 KR100571896 B1 KR 100571896B1
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- layer
- insulating layer
- film
- wiring
- dielectric constant
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Abstract
Description
Claims (13)
- 반도체 장치의 제조 방법에 있어서,반도체 기판 위에 각각 제1 절연층, 제2 절연층 및 제3 절연층으로 이루어지는 복수의 배선층을 형성하는 공정,상기 제3 절연층, 상기 제2 절연층 및 상기 제1 절연층을 순차 선택적으로 제거하여 스루홀을 형성하는 공정,상기 스루홀의 내벽을 덮도록 제1 도전막을 형성하는 공정, 및상기 제1 도전막을 덮도록 상기 스루홀의 내벽에 제2 도전막을 매립하여 배선 도체를 형성하는 공정을 포함하고,상기 복수의 배선층 중 상층에 위치하는 배선층의 제1 절연층이, 인접하여 설치되어 있는 하층에 위치하는 배선층의 제3 절연층을 겸하도록 형성되고, 상기 복수의 배선층 중 하층에 위치하는 제2 절연층의 유전율을 상층에 위치하는 제2 절연층에 비교하여 작게 되도록 형성하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- (1) 반도체 기판의 위쪽에 제1 절연층, 제2 절연층, 제3 절연층을 갖는 제1 배선층을 형성하는 공정,(2) 상기 제1 배선층 중 상기 제3 절연층에 개구를 형성하는 공정,(3) 상기 제1 배선층 중 상기 제3 절연층 상에 제2 절연층, 제3 절연층을 갖는 제2 배선층을 형성하는 공정,(4) 상기 제2 배선층의 제3 절연층, 제2 절연층을 선택적으로 제거한 후, 상기 제1 배선층의 제2 절연층, 제1 절연층을 선택적으로 제거하여 상기 제2 배선층 및 상기 제1 배선층을 관통하는 개구를 형성하는 공정,(5) 상기 개구의 내벽을 덮도록 제1 도전막을 형성한 후, 상기 개구의 내부에 구리로 이루어지는 제2 도전막을 매립하여 배선 도체를 형성하는 공정, 및(6) 상기 제2 배선층 중, 제3 절연층을 제거하여 듀얼 다마신 구조체를 형성하는 공정을 포함하고,상기 (1) 내지 (6)의 각 공정을 반복하여 적층 구조를 갖는 반도체 장치의 제조 방법으로서,상기 배선층 중 하층에 위치하는 배선층의 제2 절연층을 상층에 위치하는 배선층에 비교하여 작은 유전율을 갖도록 형성하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 삭제
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- 제1항에 있어서,상기 배선층 중 하층에 위치하는 배선층의 제2 절연층을, 상기 제1 절연층의 위에 실리콘 함유의 용액을 도포한 후, 상기 용액을 가열하여 형성하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제2항에 있어서,상기 배선층 중 하층에 위치하는 제1 배선층의 제2 절연층을, 상기 제1 절연층의 위에 실리콘 함유의 용액을 도포한 후, 상기 용액을 가열하여 형성하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제6항에 있어서,상기 실리콘 함유의 용액이 실세스퀴옥산 수소 화합물 또는 실세스퀴옥산 메틸 화함물을 포함하여 이루어지고, 상기 제2 절연층 중에 직경이 0.05 nm 이상 4 nm 이하인 범위의 보이드를 형성시켜 이루어지는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제7항에 있어서,상기 실리콘 함유의 용액이 실세스퀴옥산 수소 화합물 또는 실세스퀴옥산 메틸 화함물을 포함하여 이루어지고, 상기 제2 절연층 중에 직경이 0.05 nm 이상 4 nm 이하인 범위의 보이드를 형성시켜 이루어지는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제8항에 있어서,상기 제2 절연층의 비유전율이 2.7 이하인 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제9항에 있어서,상기 제2 절연층의 비유전율이 2.7 이하인 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제1항에 있어서,상기 배선층 중 하층에 위치하는 배선층의 제2 절연층을, 상기 제1 절연층의 위에 알킬 실란 화합물 또는 알콕시 실란 화합물을 주성분으로 한 박막을 형성한 후, 상기 박막을 가열하는 것에 의해 형성하고, 상기 제2 절연층 중에 직경이 0.05 nm 이상 4 nm 이하인 범위의 보이드를 형성시키고, 상기 제2 절연층의 비유전율이 2.7 이하가 되도록 한 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제2항에 있어서,상기 배선층 중 하층에 위치하는 배선층의 제2 절연층을, 상기 제1 절연층의 위에 알킬 실란 화합물 또는 알콕시 실란 화합물을 주성분으로 한 박막을 형성한 후, 상기 박막을 가열하는 것에 의해 형성하고, 상기 제2 절연층 중에 직경이 0.05 nm 이상 4 nm 이하인 범위의 보이드를 형성시키고, 상기 제2 절연층의 비유전율이 2.7 이하가 되도록 한 것을 특징으로 하는 반도체 장치의 제조 방법.
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JP4801296B2 (ja) * | 2001-09-07 | 2011-10-26 | 富士通セミコンダクター株式会社 | 半導体装置及びその製造方法 |
US6992391B2 (en) * | 2001-09-28 | 2006-01-31 | Intel Corporation | Dual-damascene interconnects without an etch stop layer by alternating ILDs |
JP2003163265A (ja) | 2001-11-27 | 2003-06-06 | Nec Corp | 配線構造およびその製造方法 |
JP2003264260A (ja) * | 2002-03-08 | 2003-09-19 | Toshiba Corp | 半導体チップ搭載基板、半導体装置、半導体モジュール及び半導体装置実装基板 |
TWI300971B (en) * | 2002-04-12 | 2008-09-11 | Hitachi Ltd | Semiconductor device |
JP4040363B2 (ja) * | 2002-05-20 | 2008-01-30 | 富士通株式会社 | 半導体装置 |
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2003
- 2003-03-07 TW TW095144838A patent/TWI300971B/zh not_active IP Right Cessation
- 2003-03-07 TW TW092104965A patent/TWI278962B/zh not_active IP Right Cessation
- 2003-04-11 US US10/411,130 patent/US6838771B2/en not_active Expired - Lifetime
- 2003-04-11 KR KR1020030022925A patent/KR100556641B1/ko active IP Right Grant
- 2003-04-12 CN CN2007101945770A patent/CN101197372B/zh not_active Expired - Lifetime
- 2003-04-12 CN CN03130796A patent/CN1452244A/zh active Pending
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2004
- 2004-12-01 US US11/000,442 patent/US7372154B2/en not_active Expired - Lifetime
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- 2005-05-20 KR KR1020050042561A patent/KR100571896B1/ko active IP Right Grant
- 2005-08-26 US US11/211,548 patent/US7772700B2/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
KR100556641B1 (ko) | 2006-03-03 |
JP2010045406A (ja) | 2010-02-25 |
US6838771B2 (en) | 2005-01-04 |
TWI278962B (en) | 2007-04-11 |
US7986041B2 (en) | 2011-07-26 |
TW200711041A (en) | 2007-03-16 |
CN101197372B (zh) | 2010-09-29 |
US20060001169A1 (en) | 2006-01-05 |
US7372154B2 (en) | 2008-05-13 |
US7247525B2 (en) | 2007-07-24 |
US20060001167A1 (en) | 2006-01-05 |
US20030213980A1 (en) | 2003-11-20 |
KR20050055677A (ko) | 2005-06-13 |
KR20030081161A (ko) | 2003-10-17 |
US7772700B2 (en) | 2010-08-10 |
CN1452244A (zh) | 2003-10-29 |
US20050093161A1 (en) | 2005-05-05 |
TWI300971B (en) | 2008-09-11 |
US20100252933A1 (en) | 2010-10-07 |
CN101197372A (zh) | 2008-06-11 |
TW200305255A (en) | 2003-10-16 |
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