KR100695993B1 - 적층형 엠아이엠 캐패시터 및 그 제조 방법 - Google Patents
적층형 엠아이엠 캐패시터 및 그 제조 방법 Download PDFInfo
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- KR100695993B1 KR100695993B1 KR1020040116970A KR20040116970A KR100695993B1 KR 100695993 B1 KR100695993 B1 KR 100695993B1 KR 1020040116970 A KR1020040116970 A KR 1020040116970A KR 20040116970 A KR20040116970 A KR 20040116970A KR 100695993 B1 KR100695993 B1 KR 100695993B1
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- capacitor
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- 239000003990 capacitor Substances 0.000 title claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 238000000151 deposition Methods 0.000 claims abstract description 9
- 239000007769 metal material Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 49
- 239000011229 interlayer Substances 0.000 claims description 16
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 239000010410 layer Substances 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper 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
- 229910052721 tungsten Inorganic materials 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000000206 photolithography Methods 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 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 claims description 4
- 229910008807 WSiN Inorganic materials 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 claims description 3
- HWEYZGSCHQNNEH-UHFFFAOYSA-N silicon tantalum Chemical compound [Si].[Ta] HWEYZGSCHQNNEH-UHFFFAOYSA-N 0.000 claims description 3
- WNUPENMBHHEARK-UHFFFAOYSA-N silicon tungsten Chemical compound [Si].[W] WNUPENMBHHEARK-UHFFFAOYSA-N 0.000 claims description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 3
- IVHJCRXBQPGLOV-UHFFFAOYSA-N azanylidynetungsten Chemical compound [W]#N IVHJCRXBQPGLOV-UHFFFAOYSA-N 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 3
- 229910004156 TaNx Inorganic materials 0.000 description 2
- 229910008599 TiW Inorganic materials 0.000 description 2
- 229910008764 WNx Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
- H10D1/692—Electrodes
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/7687—Thin films associated with contacts of capacitors
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- 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
- H01L23/5222—Capacitive arrangements or effects of, or between wiring layers
- H01L23/5223—Capacitor integral with wiring layers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Integrated Circuits (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (12)
- 금속물질로 형성된 제 1 배선;상기 제 1 배선의 상부에 도전물질로 형성되는 복수개의 제 1 비아콘택플러그;상기 복수개의 제 1 비아콘택플러그 중 어느 하나와 접속되는 제 1 상부전극과 상기 제 1 상부 전극 상에 형성되는 제 1 유전체막과 그 일측이 상기 복수개의 제 1 비아콘택플러그 중 어느 하나에 접속되며 상기 제 1 유전체막 상에 형성되는 공통하부전극으로 구성되는 제 1 캐패시터;상기 공통하부전극을 공통으로 사용하고, 상기 공통하부전극의 상부에 제 2 유전체막, 및 제 2 상부전극이 순차적으로 증착되어 형성된 제 2 캐패시터;상기 제 2 캐패시터의 제 2 상부전극과 접속되는 제 2 비아콘택플러그; 및상기 제 2 비아콘택플러그에 접속되는 제 2 배선을 포함하여 구성함을 특징으로 하는 적층형 엠아이엠 캐패시터.
- 제 1항에 있어서, 상기 제 1 상부전극과 상기 공통하부전극은 탄탈륨 나이트라이드(TaN), 탄탈륨실리콘나이트라이드(TaSiN), 텅스텐 나이트라이드(WN), 및 텅스텐실리콘나이트라이드(WSiN)막 중에서 어느 하나의 물질로 구성됨을 특징으로 하는 적층형 엠아이엠 캐패시터.
- 제 1항에 있어서, 상기 제 1 및 제 2 배선과 상기 제 2 상부전극은 알루미늄(Al), 텅스텐(W), 및 구리(Cu) 중에서 어느 하나의 물질로 구성됨을 특징으로 하는 적층형 엠아이엠 캐패시터.
- 제 1항에 있어서, 상기 제 1 및 제 2 유전체막은 실리콘 나이트라이드(SiN) 및 산화탄탈륨(Ta2O5)중에서 어느 하나의 물질로 구성됨을 특징으로 하는 적층형 엠아이엠 캐패시터.
- (a) 제 1 배선이 형성된 제 1 절연막 상부에 층간절연막을 증착하는 공정;(b) 상기 제 1 배선상에 복수개의 비아 콘택플러그를 형성하고 상기 복수개의 비아 콘택플러그가 형성된 상기 층간절연막 상부에 상부전극과 유전체막 및 공통하부전극으로 이루어지는 제 1 캐패시터를 형성하는 공정;(c) 상기 제 1 캐패시터의 공통 하부전극을 하부전극으로 사용하고 제 2 배선을 상부전극으로 사용하는 제 2 캐패시터를 형성하는 공정; 및(d) 상기 제 2 캐패시터의 상부에 비아 콘택플러그를 형성하고 층간절연막을 증착한 후, 제 3 배선을 형성하는 공정;을 포함하는 것을 특징으로 하는 적층형 엠아이엠 캐패시터의 제조방법.
- 제 5항에 있어서, 상기 (b) 공정은,상기 복수개의 비아콘택플러그 중 어느 하나에 접속되도록 상부전극을 형성하는 공정;상기 상부전극의 상부에 유전체막을 형성하는 공정;상기 복수개의 비아콘택플러그 중 하나가 노출되도록 사진 식각 공정을 통해 상기 유전체막을 제거하는 공정; 및상기 유전체막의 상부에 도전물질을 증착하여 상기 노출된 비아콘택플러그에 연결되는 공통하부전극을 형성하는 공정을 포함하는 것을 특징으로 하는 적층형 엠아이엠 캐패시터의 제조방법.
- 제 6항에 있어서, 상기 (b) 공정은 상기 하부전극 및 상부전극을 탄탈륨 나이트라이드(TaN), 탄탈륨실리콘나이트라이드(TaSiN), 텅스텐 나이트라이드(WN), 및 텅스텐실리콘나이트라이드(WSiN)막 중에서 어느 하나의 물질을 이용하여 형성함을 특징으로 하는 적층형 엠아이엠 캐패시터의 제조방법
- 제 6항에 있어서, 상기 (b) 공정은 상기 유전체막을 실리콘 나이트라이드(SiN) 및 산화탄탈륨(Ta2O5)중에서 어느 하나의 물질을 이용하여 형성함을 특징으로 하는 적층형 엠아이엠 캐패시터의 제조방법.
- 제 5항에 있어서, 상기 (c) 공정은,상기 공통하부전극의 상부에 유전체막을 형성하는 공정; 및상기 유전체막의 상부에 상기 제 2 배선을 형성하는 공정을 포함하는 것을 특징으로 하는 적층형 엠아이엠 캐패시터의 제조방법.
- 제 9항에 있어서, 상기 제 2 배선을 형성하는 공정은,상기 유전체막 상부의 일측에 일정 깊이와 폭을 갖는 트렌치(trench)를 형성하는 공정; 및전기도금법을 이용하여 상기 트렌치를 소정의 도전물질로 매립하는 공정을 포함하는 것을 특징으로 하는 적층형 엠아이엠 캐패시터 제조방법.
- 제 10항에 있어서, 상기 제 2 배선은 알루미늄(Al), 텅스텐(W), 및 구리(Cu) 중에서 어느 하나의 물질을 이용하여 형성함을 특징으로 하는 적층형 엠아이엠 캐패시터 제조방법.
- 제 5항에 있어서, 상기 제 1 및 제 3 배선은 알루미늄(Al), 텅스텐(W), 및 구리(Cu) 중에서 어느 하나의 물질을 이용하여 형성함을 특징으로 하는 적층형 엠아이엠 캐패시터 제조방법.
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US10522456B2 (en) | 2017-08-11 | 2019-12-31 | Samsung Electronics Co., Ltd. | Capacitor structure and semiconductor device including the same |
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