JP4395871B2 - 周辺領域のmosfet素子の製造方法 - Google Patents
周辺領域のmosfet素子の製造方法 Download PDFInfo
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- JP4395871B2 JP4395871B2 JP2005281364A JP2005281364A JP4395871B2 JP 4395871 B2 JP4395871 B2 JP 4395871B2 JP 2005281364 A JP2005281364 A JP 2005281364A JP 2005281364 A JP2005281364 A JP 2005281364A JP 4395871 B2 JP4395871 B2 JP 4395871B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 35
- 239000000758 substrate Substances 0.000 claims description 44
- 125000006850 spacer group Chemical group 0.000 claims description 32
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 24
- 229910052710 silicon Inorganic materials 0.000 claims description 24
- 239000010703 silicon Substances 0.000 claims description 24
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 20
- 229920005591 polysilicon Polymers 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 17
- 238000005468 ion implantation Methods 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 10
- -1 spacer nitride Chemical class 0.000 claims description 10
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 claims description 8
- 229910021342 tungsten silicide Inorganic materials 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 7
- 150000004767 nitrides Chemical class 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 238000000059 patterning Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims 1
- 239000010408 film Substances 0.000 description 99
- 230000008021 deposition Effects 0.000 description 4
- 238000010405 reoxidation reaction Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000000427 thin-film deposition Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
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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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823412—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the channel structures, e.g. channel implants, halo or pocket implants, or channel materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66234—Bipolar junction transistors [BJT]
- H01L29/66325—Bipolar junction transistors [BJT] controlled by field-effect, e.g. insulated gate bipolar transistors [IGBT]
- H01L29/66333—Vertical insulated gate bipolar transistors
- H01L29/66348—Vertical insulated gate bipolar transistors with a recessed gate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66674—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/66712—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/66719—With a step of forming an insulating sidewall spacer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
2、22 素子分離膜
23 犠牲酸化膜
24 マスク用ポリシリコン膜
25 溝
3、26 ゲート酸化膜
4、27 ドーピングされたポリシリコン膜
5、28 タングステンシリサイド膜
6、29 ハードマスク膜
7、30a、30b ゲート
8、31 スクリーン酸化膜
9、32 LDD領域
10、33 ゲートバッファ酸化膜
11、34 ゲートスペーサ窒化膜
12、35 ゲートスペーサ酸化膜
13、36 ゲートスペーサ
14、37 ソース/ドレーン領域
40a、40b MOSFET素子
A 高密度パターン領域
B 低密度パターン領域
Claims (10)
- 周辺領域内の高密度パターン領域と低密度パターン領域とを有するシリコン基板にアクティブ領域を画定する素子分離膜を形成する第1ステップと、
前記高密度パターン領域のゲートが形成される部分の前記シリコン基板の表面にリセスチャネルが得られるように溝を形成する第2ステップと、
前記素子分離膜及び溝を含む前記シリコン基板の全面上に、ゲート絶縁膜、ゲート導電膜、及びハードマスク膜を順次形成する第3ステップと、
前記ハードマスク膜、ゲート導電膜、及びゲート絶縁膜をパターニングして、前記高密度パターン領域の溝と前記低密度パターン領域の前記シリコン基板の表面上に各々ゲートを形成する第4ステップと、
前記ゲートの両側の前記シリコン基板の表面内にLDD領域を形成する第5ステップと、
前記第1〜第5ステップによって形成された結果物上に、ゲートバッファ酸化膜、ゲートスペーサ窒化膜、及びゲートスペーサ酸化膜を順次蒸着する第6ステップと、
前記ゲートスペーサ酸化膜、ゲートスペーサ窒化膜、及びゲートバッファ酸化膜をエッチングして前記ゲートの両側壁にゲートスペーサを形成する第7ステップと、
前記ゲートスペーサを含む前記ゲート両側の前記シリコン基板の表面内にソース/ドレーン領域を形成する第8ステップとを含むことを特徴とする周辺領域のMOSFET素子の製造方法。 - 前記第2ステップは、
前記素子分離膜が形成された前記シリコン基板の全面上に犠牲酸化膜及びマスク用ポリシリコン膜を順次形成する第9ステップと、
前記高密度パターン領域のゲートが形成される部分の前記シリコン基板上の前記マスク用ポリシリコン膜及びその下の犠牲酸化膜をエッチングすると共に、前記シリコン基板を所定の深さまでエッチングする第10ステップと、
前記マスク用ポリシリコン膜及び犠牲酸化膜を除去する第11ステップとを含むことを特徴とする請求項1に記載の周辺領域のMOSFET素子の製造方法。 - 前記犠牲酸化膜は、100〜200Åの厚さに形成され、前記マスク用ポリシリコン膜は1000〜1500Åの厚さに形成されることを特徴とする請求項2に記載の周辺領域のMOSFET素子の製造方法。
- 前記溝は300〜1000Åの深さに形成されることを特徴とする請求項1または2に記載の周辺領域のMOSFET素子の製造方法。
- 前記第2ステップの後、かつ、前記第3ステップの前に、ウェルイオン注入、チャネルストップイオン注入、及びしきい値電圧調節イオン注入を行うステップを更に含むことを特徴とする請求項1に記載の周辺領域のMOSFET素子の製造方法。
- 前記ゲート絶縁膜は酸化膜であり、前記ゲート導電膜はドーピングされたポリシリコン膜及びタングステンシリサイド膜の積層膜であり、前記ハードマスク膜は窒化膜であることを特徴とする請求項1に記載の周辺領域のMOSFET素子の製造方法。
- 前記酸化膜は30〜50Åの厚さに形成され、前記ドーピングされたポリシリコン膜は400〜700Åの厚さに形成され、前記タングステンシリサイド膜は1000〜1500Åの厚さに形成され、前記窒化膜は2000〜2500Åの厚さに形成されることを特徴とする請求項6に記載の周辺領域のMOSFET素子の製造方法。
- 前記第4ステップの後、かつ、前記第5ステップの前に、前記ゲートが形成された結果物に対し、ゲート再酸化処理を行って、前記ゲートの側壁及び前記シリコン基板の表面上にスクリーン酸化膜を形成するステップを更に含むことを特徴とする請求項1に記載の周辺領域のMOSFET素子の製造方法。
- 前記ゲート再酸化処理は、前記スクリーン酸化膜が30〜60Åの厚さに成長するまで行われることを特徴とする請求項8に記載の周辺領域のMOSFET素子の製造方法。
- 前記ゲートバッファ酸化膜は80〜120Åの厚さに蒸着され、前記ゲートスペーサ窒化膜は90〜150Åの厚さに蒸着され、前記ゲートスペーサ酸化膜は400〜600Åの厚さに蒸着されることを特徴とする請求項1に記載の周辺領域のMOSFET素子の製造方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020040090415A KR100608369B1 (ko) | 2004-11-08 | 2004-11-08 | 주변영역에의 모스펫 소자 제조방법 |
Publications (2)
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JP2006135304A JP2006135304A (ja) | 2006-05-25 |
JP4395871B2 true JP4395871B2 (ja) | 2010-01-13 |
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JP2005281364A Expired - Fee Related JP4395871B2 (ja) | 2004-11-08 | 2005-09-28 | 周辺領域のmosfet素子の製造方法 |
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US (1) | US20060099762A1 (ja) |
JP (1) | JP4395871B2 (ja) |
KR (1) | KR100608369B1 (ja) |
Families Citing this family (8)
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KR100834746B1 (ko) | 2007-02-14 | 2008-06-05 | 삼성전자주식회사 | 센스 앰프를 포함하는 반도체 소자 |
US8034677B2 (en) | 2010-02-25 | 2011-10-11 | Taiwan Semiconductor Manufacturing Co., Ltd. | Integrated method for forming high-k metal gate FinFET devices |
KR101697594B1 (ko) * | 2010-03-03 | 2017-01-18 | 삼성전자주식회사 | 반도체 소자 및 이를 제조하는 방법 |
KR20130022534A (ko) * | 2011-08-25 | 2013-03-07 | 에스케이하이닉스 주식회사 | 비휘발성 메모리 장치 및 그 제조 방법 |
US20150021698A1 (en) * | 2013-07-18 | 2015-01-22 | International Business Machines Corporation | Intrinsic Channel Planar Field Effect Transistors Having Multiple Threshold Voltages |
US20150021699A1 (en) * | 2013-07-18 | 2015-01-22 | International Business Machines Corporation | FIN Field Effect Transistors Having Multiple Threshold Voltages |
DE102019113208B4 (de) | 2018-06-26 | 2022-08-25 | Taiwan Semiconductor Manufacturing Co. Ltd. | Integrierte Schaltung mit Grabengate-Hochvolttransistor für einen eingebetteten Speicher und Verfahren zu deren Herstellung |
US11189628B2 (en) * | 2018-06-26 | 2021-11-30 | Taiwan Semiconductor Manufacturing Company, Ltd. | Trench gate high voltage transistor for embedded memory |
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US5780340A (en) * | 1996-10-30 | 1998-07-14 | Advanced Micro Devices, Inc. | Method of forming trench transistor and isolation trench |
US5976956A (en) * | 1997-04-11 | 1999-11-02 | Advanced Micro Devices, Inc. | Method of controlling dopant concentrations using transient-enhanced diffusion prior to gate formation in a device |
JP2000260953A (ja) * | 1998-11-10 | 2000-09-22 | Texas Instr Inc <Ti> | ソースとドレイン端子用の拡大されたコンタクト領域を有するゲートデバイス及びその製造方法 |
US6630718B1 (en) * | 1999-07-26 | 2003-10-07 | Micron Technology, Inc. | Transistor gate and local interconnect |
KR100372639B1 (ko) * | 2000-06-21 | 2003-02-17 | 주식회사 하이닉스반도체 | 모스팻 소자의 제조방법 |
US6737316B2 (en) * | 2001-10-30 | 2004-05-18 | Promos Technologies Inc. | Method of forming a deep trench DRAM cell |
KR100568854B1 (ko) * | 2003-06-17 | 2006-04-10 | 삼성전자주식회사 | 반도체 메모리에서의 리세스 채널을 갖는 트랜지스터 형성방법 |
KR100511045B1 (ko) * | 2003-07-14 | 2005-08-30 | 삼성전자주식회사 | 리세스된 게이트 전극을 갖는 반도체 소자의 집적방법 |
US6844591B1 (en) * | 2003-09-17 | 2005-01-18 | Micron Technology, Inc. | Method of forming DRAM access transistors |
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2004
- 2004-11-08 KR KR1020040090415A patent/KR100608369B1/ko not_active IP Right Cessation
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2005
- 2005-05-02 US US11/120,576 patent/US20060099762A1/en not_active Abandoned
- 2005-09-28 JP JP2005281364A patent/JP4395871B2/ja not_active Expired - Fee Related
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Publication number | Publication date |
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US20060099762A1 (en) | 2006-05-11 |
KR100608369B1 (ko) | 2006-08-09 |
JP2006135304A (ja) | 2006-05-25 |
KR20060041351A (ko) | 2006-05-12 |
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