KR101128701B1 - Mim 커패시터 및 그 제조방법 - Google Patents
Mim 커패시터 및 그 제조방법 Download PDFInfo
- Publication number
- KR101128701B1 KR101128701B1 KR1020050032238A KR20050032238A KR101128701B1 KR 101128701 B1 KR101128701 B1 KR 101128701B1 KR 1020050032238 A KR1020050032238 A KR 1020050032238A KR 20050032238 A KR20050032238 A KR 20050032238A KR 101128701 B1 KR101128701 B1 KR 101128701B1
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- KR
- South Korea
- Prior art keywords
- tantalum
- layer
- alpha
- tantalum nitride
- nitride layer
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 56
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 12
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 8
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims 2
- 239000004065 semiconductor Substances 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 19
- 238000000151 deposition Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/75—Electrodes comprising two or more layers, e.g. comprising a barrier layer and a metal layer
-
- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/32051—Deposition of metallic or metal-silicide layers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (5)
- 마이너스 연결 라인에 연결되는 질화탄탈층 및 상기 질화탄탈층의 상부에 형성되는 알파-탄탈층으로 이루어지는 하부전극;상기 알파-탄탈층의 상부에 위치하는 절연층; 및상기 절연층의 상부에 위치하는 질화탄탈층 및 상기 질화탄탈층의 상부에 형성되며, 플러스 연결라인에 연결되는 알파-탄탈층으로 이루어지는 상부 전극을 포함하며,상기 알파-탄탈층은, 상기 알파-탄탈층 증착 시 상기 질화탄탈층의 질소 원자가 확산되어 형성되는 MIM 커패시터.
- 질화탄탈층을 형성하는 단계(S110);상기 질화탄탈층의 상부에 알파-탄탈층을 형성하는 단계(S120);상기 알파-탄탈층의 상부에 절연층을 형성하는 단계(S130);상기 절연층의 상부에 질화탄탈층을 형성하는 단계(S140);상기 질화탄탈층의 상부에 알파-탄탈층을 형성하는 단계(S150)를 포함하며,상기 알파-탄탈층은, 상기 알파-탄탈층 증착 시 상기 질화탄탈층의 질소 원자가 확산되어 형성되는 MIM 커패시터의 제조방법.
- 제2항에 있어서, 상기 S120 단계 및 S150 단계는,상온에서 수행되는 것을 특징으로 하는 MIM 커패시터의 제조방법.
- 제2항 또는 제3항에 있어서, 상기 S110 단계 및 S140 단계는,-50℃에서 수행되는 것을 특징으로 하는 MIM 커패시터의 제조방법.
- 제2항 또는 제3항에 있어서, 상기 S130 단계는,상기 절연층으로서 질화실리콘층을 형성하는 MIM 커패시터의 제조방법.
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KR1020050032238A KR101128701B1 (ko) | 2005-04-19 | 2005-04-19 | Mim 커패시터 및 그 제조방법 |
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KR1020050032238A KR101128701B1 (ko) | 2005-04-19 | 2005-04-19 | Mim 커패시터 및 그 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20060110069A KR20060110069A (ko) | 2006-10-24 |
KR101128701B1 true KR101128701B1 (ko) | 2012-03-23 |
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KR1020050032238A KR101128701B1 (ko) | 2005-04-19 | 2005-04-19 | Mim 커패시터 및 그 제조방법 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001053165A (ja) | 1999-08-05 | 2001-02-23 | Sony Corp | 半導体装置およびその駆動方法 |
KR20020002755A (ko) * | 2000-06-30 | 2002-01-10 | 박종섭 | 반도체 소자의 캐패시터 제조 방법 |
JP2003174092A (ja) * | 2001-12-04 | 2003-06-20 | Toshiba Corp | 半導体装置及びその製造方法 |
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- 2005-04-19 KR KR1020050032238A patent/KR101128701B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001053165A (ja) | 1999-08-05 | 2001-02-23 | Sony Corp | 半導体装置およびその駆動方法 |
KR20020002755A (ko) * | 2000-06-30 | 2002-01-10 | 박종섭 | 반도체 소자의 캐패시터 제조 방법 |
JP2003174092A (ja) * | 2001-12-04 | 2003-06-20 | Toshiba Corp | 半導体装置及びその製造方法 |
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