JP4152276B2 - 低温原子層蒸着による窒化膜をエッチング阻止層として利用する半導体素子及びその製造方法 - Google Patents
低温原子層蒸着による窒化膜をエッチング阻止層として利用する半導体素子及びその製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 54
- 238000005530 etching Methods 0.000 title claims description 46
- 238000000034 method Methods 0.000 title claims description 44
- 238000000231 atomic layer deposition Methods 0.000 title claims description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 150000004767 nitrides Chemical class 0.000 title description 38
- 239000010410 layer Substances 0.000 claims description 76
- 239000000758 substrate Substances 0.000 claims description 30
- 239000011229 interlayer Substances 0.000 claims description 22
- 238000001312 dry etching Methods 0.000 claims description 18
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 15
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 15
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 14
- 238000001039 wet etching Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910021332 silicide Inorganic materials 0.000 claims description 8
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 8
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 7
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 239000005380 borophosphosilicate glass Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910003902 SiCl 4 Inorganic materials 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 239000010408 film Substances 0.000 description 89
- 230000002265 prevention Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- 239000012495 reaction gas Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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- 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
- H01L21/76897—Formation of self-aligned vias or contact plugs, i.e. involving a lithographically uncritical step
-
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
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- 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
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
-
- 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
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Electrodes Of Semiconductors (AREA)
- Drying Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Formation Of Insulating Films (AREA)
- Semiconductor Memories (AREA)
Description
102 ゲート電極パターン、
104 シリサイドパターン、
106 最上層パターン、
108 ゲートスペーサ、
110 ゲートパターン、
120 エッチング阻止層、
130 層間絶縁膜、
140 フォトレジストパターン、
150 自己整列コンタクトホール。
Claims (9)
- 半導体基板上に、最上部及び側壁に600℃以上の高温で低圧化学気相蒸着によって形成された第1シリコン窒化膜のあるゲートパターンを形成する段階と、
前記ゲートパターンの全体と前記半導体基板の全体とを一定の厚さで覆う、前記第1シリコン窒化膜よりも大きなエッチング率を有し密度の低い原子層蒸着により形成された第2シリコン窒化膜を材質とするエッチング阻止層を、500℃以下の低温で形成する段階と、
前記エッチング阻止層が形成された半導体基板上に層間絶縁膜を蒸着する段階と、
前記ゲートパターンを利用して前記層間絶縁膜を乾式エッチングでエッチングして自己整列コンタクトホールを形成する段階と、
前記自己整列コンタクトホールの領域に露出されたエッチング阻止層を湿式エッチングで除去する段階と、
を備え、
前記原子層蒸着による第2シリコン窒化膜を材質とするエッチング阻止層を形成するための反応ガスは、
シリコンソースにはSiH 4 、SiCl 2 H 2 、SiCl 4 のうち選択された何れか一つを使用し、
窒素ソースにはN 2 、NH 3 、N 2 Oのうち選択された何れか一つを使用することを特徴とする半導体素子の製造方法。 - 前記ゲートパターンを形成する段階は、
前記半導体基板上にゲート電極、シリサイド層及び低圧化学気相蒸着による第1シリコン窒化膜を材質とする最上層パターンを積層する段階と、
前記ゲート電極、シリサイド層及び最上層パターンの側壁に低圧化学気相蒸着による第1シリコン窒化膜を材質とするゲートスペーサを形成する段階と、
を備えることを特徴とする請求項1に記載の半導体素子の製造方法。 - 前記第2シリコン窒化膜を形成する温度は100〜500℃の範囲であることを特徴とする請求項1に記載の半導体素子の製造方法。
- 前記第2シリコン窒化膜は100〜700Åの厚さで形成することを特徴とする請求項1に記載の半導体素子の製造方法。
- 前記層間絶縁膜はSiO2、BPSG及びHDPオキシドよりなる酸化膜のうち選択された何れか一つの単一膜であることを特徴とする請求項1に記載の半導体素子の製造方法。
- 前記層間絶縁膜はSiO2、BPSG及びHDPオキシドよりなる酸化膜のうち選択された何れか一つを含む多層膜であることを特徴とする請求項1に記載の半導体素子の製造方法。
- 前記自己整列コンタクトホールを形成するための乾式エッチングは、
前記エッチング阻止層が露出されるまで進行することを特徴とする請求項1に記載の半導体素子の製造方法。 - 前記エッチング阻止層を除去するための湿式エッチングは、
フッ酸溶液をエッチング液として使用することを特徴とする請求項1に記載の半導体素子の製造方法。 - 前記エッチング阻止層を除去するための湿式エッチングは、
NH 4 OH:H 2 O 2 :H 2 Oが1:1:5の比率である洗浄液(80℃)で10分間洗浄し、次に純水でリンスし、次に1%のHF液で浸清洗浄し、次に純水でリンスし、次にHCl:H 2 O 2 :H 2 Oが1:1:6比率の洗浄液(80℃)で10分間洗浄し、次に純水でリンスし、最後にスピンドライの順に行なうことを特徴とする請求項1に記載の半導体素子の製造方法。
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KR10-2002-0055005A KR100459724B1 (ko) | 2002-09-11 | 2002-09-11 | 저온 원자층증착에 의한 질화막을 식각저지층으로이용하는 반도체 소자 및 그 제조방법 |
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JP2020056104A (ja) | 2018-10-02 | 2020-04-09 | エーエスエム アイピー ホールディング ビー.ブイ. | 選択的パッシベーションおよび選択的堆積 |
US11965238B2 (en) | 2019-04-12 | 2024-04-23 | Asm Ip Holding B.V. | Selective deposition of metal oxides on metal surfaces |
US11139163B2 (en) | 2019-10-31 | 2021-10-05 | Asm Ip Holding B.V. | Selective deposition of SiOC thin films |
TWI707058B (zh) * | 2019-12-19 | 2020-10-11 | 汎銓科技股份有限公司 | 一種物性分析試片的製備方法 |
TW202140833A (zh) | 2020-03-30 | 2021-11-01 | 荷蘭商Asm Ip私人控股有限公司 | 相對於金屬表面在介電表面上之氧化矽的選擇性沉積 |
TW202140832A (zh) | 2020-03-30 | 2021-11-01 | 荷蘭商Asm Ip私人控股有限公司 | 氧化矽在金屬表面上之選擇性沉積 |
TW202204658A (zh) | 2020-03-30 | 2022-02-01 | 荷蘭商Asm Ip私人控股有限公司 | 在兩不同表面上同時選擇性沉積兩不同材料 |
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US5292677A (en) * | 1992-09-18 | 1994-03-08 | Micron Technology, Inc. | Reduced mask CMOS process for fabricating stacked capacitor multi-megabit dynamic random access memories utilizing single etch stop layer for contacts |
US5930650A (en) * | 1997-08-01 | 1999-07-27 | Chung; Bryan Chaeyoo | Method of etching silicon materials |
US6350659B1 (en) * | 1999-09-01 | 2002-02-26 | Agere Systems Guardian Corp. | Process of making semiconductor device having regions of insulating material formed in a semiconductor substrate |
US7192888B1 (en) * | 2000-08-21 | 2007-03-20 | Micron Technology, Inc. | Low selectivity deposition methods |
KR100378186B1 (ko) * | 2000-10-19 | 2003-03-29 | 삼성전자주식회사 | 원자층 증착법으로 형성된 박막이 채용된 반도체 소자 및그 제조방법 |
KR20020057769A (ko) * | 2001-01-06 | 2002-07-12 | 윤종용 | 자기정렬된 콘택 패드를 구비하는 반도체 소자의 제조방법 |
US6638879B2 (en) * | 2001-12-06 | 2003-10-28 | Macronix International Co., Ltd. | Method for forming nitride spacer by using atomic layer deposition |
KR20030049159A (ko) * | 2001-12-14 | 2003-06-25 | 주식회사 하이닉스반도체 | 반도체 소자 제조 방법 |
KR20030050671A (ko) * | 2001-12-19 | 2003-06-25 | 주식회사 하이닉스반도체 | 반도체소자의 제조 방법 |
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US6858533B2 (en) | 2005-02-22 |
US20050146037A1 (en) | 2005-07-07 |
US20040046189A1 (en) | 2004-03-11 |
JP2004104098A (ja) | 2004-04-02 |
KR20040023297A (ko) | 2004-03-18 |
US20050142781A1 (en) | 2005-06-30 |
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