KR100934841B1 - 반도체 장치 및 그 제조 방법 - Google Patents
반도체 장치 및 그 제조 방법 Download PDFInfo
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- KR100934841B1 KR100934841B1 KR1020030065030A KR20030065030A KR100934841B1 KR 100934841 B1 KR100934841 B1 KR 100934841B1 KR 1020030065030 A KR1020030065030 A KR 1020030065030A KR 20030065030 A KR20030065030 A KR 20030065030A KR 100934841 B1 KR100934841 B1 KR 100934841B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 146
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 229910021332 silicide Inorganic materials 0.000 claims abstract description 105
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims abstract description 105
- 239000000758 substrate Substances 0.000 claims abstract description 63
- 239000004020 conductor Substances 0.000 claims abstract description 40
- 239000002019 doping agent Substances 0.000 claims abstract description 40
- 239000012535 impurity Substances 0.000 claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims description 60
- 238000002955 isolation Methods 0.000 claims description 18
- 229920002120 photoresistant polymer Polymers 0.000 abstract description 52
- 230000015556 catabolic process Effects 0.000 abstract description 29
- 239000010410 layer Substances 0.000 description 92
- 238000005468 ion implantation Methods 0.000 description 28
- 238000000206 photolithography Methods 0.000 description 18
- 238000004528 spin coating Methods 0.000 description 16
- 230000001133 acceleration Effects 0.000 description 15
- 230000005684 electric field Effects 0.000 description 9
- 239000011229 interlayer Substances 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 229910021417 amorphous silicon Inorganic materials 0.000 description 6
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 4
- 229910021342 tungsten silicide Inorganic materials 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910021341 titanium silicide Inorganic materials 0.000 description 1
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Abstract
Description
Claims (10)
- 반도체 기판 위에 절연막을 개재하여 형성된 게이트 전극과,상기 게이트 전극의 일측에 형성되고, 저농도 소스 영역과, 상기 저농도 소스 영역보다 캐리어 농도가 높은 고농도 소스 영역을 갖는 소스 영역과,상기 게이트 전극의 다른측에 형성되고, 저농도 드레인 영역과, 상기 저농도 드레인 영역보다 캐리어 농도가 높은 고농도 드레인 영역을 갖는 드레인 영역과,상기 소스 영역 위에 형성된 제1 실리사이드층과,상기 드레인 영역 위에 형성된 제2 실리사이드층과,상기 제1 실리사이드층에 접속된 제1 도체 플러그와,상기 제2 실리사이드층에 접속된 제2 도체 플러그를 갖고,상기 고농도 드레인 영역은, 상기 저농도 드레인 영역 중 주연부를 제외한 영역에 형성되어 있으며,상기 제2 실리사이드층은, 상기 고농도 드레인 영역 중 주연부를 제외한 영역에 형성되어 있는 것을 특징으로 하는 반도체 장치.
- 제1항에 있어서,상기 제2 도체 플러그는, 상기 제2 실리사이드층 중 주연부를 제외한 영역에 도달하도록 형성되어 있는 것을 특징으로 하는 반도체 장치.
- 제1항 또는 제2항에 있어서,상기 고농도 드레인 영역의 상기 게이트 전극측의 엣지부와 상기 저농도 드레인 영역의 상기 게이트 전극측의 엣지부와의 사이의 거리가, 상기 고농도 소스 영역의 상기 게이트 전극측의 엣지부와 상기 저농도 소스 영역의 상기 게이트 전극측의 엣지부와의 사이의 거리보다 긴 것을 특징으로 하는 반도체 장치.
- 제1항 또는 제2항에 있어서,상기 제2 실리사이드층의 상기 게이트 전극측의 엣지부와 상기 고농도 드레인 영역의 상기 게이트 전극측의 엣지부와의 사이의 거리가, 상기 제1 실리사이드층의 상기 게이트 전극측의 엣지부와 상기 고농도 소스 영역의 상기 게이트 전극측의 엣지부와의 사이의 거리보다 긴 것을 특징으로 하는 반도체 장치.
- 제1항 또는 제2항에 있어서,상기 제2 실리사이드층의 엣지부와 상기 고농도 드레인 영역의 엣지부와의 사이의 거리가, 0.1㎛ 이상인 것을 특징으로 하는 반도체 장치.
- 제5항에 있어서,상기 제2 실리사이드층의 엣지부와 상기 고농도 드레인 영역의 엣지부와의 사이의 거리가, 0.5㎛ 이상인 것을 특징으로 하는 반도체 장치.
- 제1항 또는 제2항에 있어서,상기 드레인 영역에 인접하는 소자 분리 영역을 더 갖고,상기 고농도 드레인 영역은, 상기 소자 분리 영역으로부터 이격되도록 형성되어 있는 것을 특징으로 하는 반도체 장치.
- 제1항 또는 제2항에 있어서,상기 도체 플러그의 엣지부와 상기 제2 실리사이드층의 엣지부와의 거리가, 0.3㎛ 이상인 것을 특징으로 하는 반도체 장치.
- 반도체 기판 위에 게이트 절연막을 개재하여 게이트 전극을 형성하는 공정과,상기 게이트 전극을 마스크로 하여, 상기 반도체 기판에 도우펀트 불순물을 도입함으로써 상기 게이트 전극의 일측의 상기 반도체 기판에 저농도 소스 영역을 형성함과 함께, 상기 게이트 전극의 다른측의 상기 반도체 기판에 저농도 드레인 영역을 형성하는 공정과,상기 게이트 전극의 측면에 측벽 절연막을 형성하는 공정과,상기 저농도 드레인 영역의 주연부를 덮도록 형성된 제1 마스크와 상기 게이트 전극과 상기 측벽 절연막을 마스크로 하여, 상기 반도체 기판에 도우펀트 불순물을 도입함으로써, 상기 게이트 전극의 일측의 상기 반도체 기판 내에 고농도 소스 영역을 형성함과 함께, 상기 저농도 드레인 영역 중 주연부를 제외한 영역에 고 농도 드레인 영역을 형성하는 공정과,상기 고농도 드레인 영역의 주연부를 덮도록 형성된 제2 마스크를 마스크로 하여 상기 고농도 소스 영역 위에 제1 실리사이드층을 형성함과 함께, 상기 고농도 드레인 영역 중 주연부를 제외한 영역에 제2 실리사이드층을 형성하는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제9항에 있어서,상기 제1 실리사이드층과 상기 제2 실리사이드층을 형성하는 공정 후, 상기 제1 실리사이드층에 접속된 제1 도체 플러그와, 상기 제2 실리사이드층에 접속된 제2 도체 플러그를 형성하는 공정을 더 포함하며,상기 제1 도체 플러그와 상기 제2 도체 플러그를 형성하는 공정에서는, 상기 제2 실리사이드층 중 주연부를 제외한 영역에 도달하도록 상기 제2 도체 플러그를 형성하는 것을 특징으로 하는 반도체 장치의 제조 방법.
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EP1717850A1 (en) * | 2005-04-29 | 2006-11-02 | STMicroelectronics S.r.l. | Method of manufacturing a lateral power MOS transistor |
JP4842592B2 (ja) | 2005-09-02 | 2011-12-21 | 富士通セミコンダクター株式会社 | 半導体装置およびその製造方法 |
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