JP2009534849A - ストレッサを備える構造及びその製造方法 - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 239000004065 semiconductor Substances 0.000 claims abstract description 25
- 238000005530 etching Methods 0.000 claims description 54
- 239000000463 material Substances 0.000 claims description 10
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 2
- 230000000873 masking effect Effects 0.000 claims 1
- 229910021332 silicide Inorganic materials 0.000 description 11
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical group [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 11
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 229920002120 photoresistant polymer Polymers 0.000 description 9
- 238000001312 dry etching Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 230000007547 defect Effects 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 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
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- 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
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823807—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the channel structures, e.g. channel implants, halo or pocket implants, or channel materials
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- H—ELECTRICITY
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- 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
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823864—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate sidewall spacers, e.g. double spacers, particular spacer material or shape
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- 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
- H01L29/7842—Field effect transistors with field effect produced by an insulated gate means for exerting mechanical stress on the crystal lattice of the channel region, e.g. using a flexible substrate
- H01L29/7843—Field effect transistors with field effect produced by an insulated gate means for exerting mechanical stress on the crystal lattice of the channel region, e.g. using a flexible substrate the means being an applied insulating layer
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- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/665—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using self aligned silicidation, i.e. salicide
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- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Drying Of Semiconductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
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Abstract
Description
理論に拘束されないとすると、CMOS素子に観察される欠陥の発生、及び素子性能の変化は、一部の理由として、引っ張りストレッサ膜及び圧縮ストレッサ膜を画定するために使用されるエッチングプロセスによって、基板上の金属シリサイド領域(ソース領域及びドレイン領域の上に延びる領域だけでなく、ゲート電極の上に延びる領域を含む)も部分的にエッチングされて、これらの領域が部分的に除去されるために生じると考えられている。同様に、これらのエッチングプロセスによって、一方の、または両方のストレッサ膜が薄くなり、これによって今度は、これらの膜から素子のチャネル領域に加わる圧縮応力または引っ張り応力の大きさが変化するとも考えられている。
次に、図3に示すように、第1フォトレジスト層117を構造の上に塗布し、そしてパターニングして、構造の内、第1ゲート構造105を含む領域が露出し、かつ構造の内、第2ゲート構造107を含む領域がマスクされるようにする。次に、引っ張りストレッサ層115の露出部分を素子からドライエッチングで図4に示すように除去する。次に、第1フォトレジスト層117を図5に示すように剥離し、その後、コンフォーマルな圧縮ストレッサ層119を構造の上に、図6に示すように堆積させる。
Claims (20)
- 第1及び第2ゲート構造が基板の上に配設されている基板を設ける工程と、
前記基板の上に第1ストレッサ層を形成する工程と、
前記第1ストレッサ層の上に犠牲層を形成する工程と、
前記犠牲層の上に第2ストレッサ層を形成する工程とからなる、半導体素子の製造方法。 - 前記第2ストレッサ層を前記第1ストレッサ層の上に配置する、請求項1に記載の半導体素子の製造方法。
- 前記半導体素子はCMOSトランジスタである、請求項1に記載の半導体素子の製造方法。
- 前記トランジスタのPMOS領域には第1ゲート構造を設け、及び前記トランジスタのNMOS領域には第2ゲート構造を設ける、請求項3に記載の半導体素子の製造方法。
- 前記第1ストレッサ層は前記第2ゲート構造の上に延伸し、及び前記第2ストレッサ層は前記第1ゲート構造の上に延伸している、請求項4に記載の方法。
- 前記第1ストレッサ層を前記PMOS領域から選択的に除去し、及び前記第2ストレッサ層を前記NMOS領域から選択的に除去する、請求項4に記載の半導体素子の製造方法。
- 前記第2ストレッサ層を前記NMOS領域からエッチングにより選択的に除去し、及び、エッチング中に前記犠牲層をエッチング停止層として利用する、請求項6記載の半導体素子の製造方法。
- 前記第1ストレッサ層が形成されるときには、前記第1ストレッサ層は前記第1及び第2ゲート構造の上に延伸するように形成される、請求項4に記載の半導体素子の製造方法。
- 前記第1ストレッサ層のうち、前記第1ゲート構造の上に延伸している部分を露出させ、かつ、前記第2ゲート構造の上に延伸している部分を被覆するための第1マスクを形成する工程と、
前記第1ストレッサ層の残りの露出部分を前記第1ゲート構造の上に延伸させるべく、前記第1ストレッサ層の露出部分を第1エッチングにより部分的にエッチングする工程とをさらに備える、請求項8に記載の半導体素子の製造方法。 - 前記第1ストレッサ層の残りの露出部分を、第1エッチングとは異なる第2エッチングにより除去する工程をさらに備える、請求項9に記載の半導体素子の製造方法。
- 前記第1マスクを前記第2エッチングの前に除去する、請求項10に記載の半導体素子の製造方法。
- 前記第1マスクを前記第2エッチングの後に除去する、請求項10に記載の半導体素子の製造方法。
- 前記第2エッチングでは、CH2F2,C4F8,C4F6,CO,N2,及びArから成るグループから選択されるガスを利用する、請求項10に記載の半導体素子の製造方法。
- 前記第2エッチングはHF(フッ酸)水溶液エッチングである、請求項10に記載の半導体素子の製造方法。
- 前記第1マスクを除去する工程と、
前記第1及び第2ゲート構造の上に延伸している第2ストレッサ層を形成する工程とをさらに備える、請求項10に記載の半導体素子の製造方法。 - 前記第2ストレッサ層のうち、前記第2ゲート構造の上に延在する部分を露出させ、かつ第1ゲート構造の上に延在する部分を被覆するための第2マスクを形成する工程と、
第2ストレッサ層の露出部分を除去する工程とをさらに備える、
請求項15に記載の半導体素子の製造方法。 - 前記第1ストレッサ層によって引っ張り応力が前記基板に加わり、及び、前記第2ストレッサ層によって圧縮応力が前記基板に加わる、請求項1に記載の半導体素子の製造方法。
- 前記第1及び第2ストレッサ層は窒化シリコンからなる、請求項1に記載の半導体素子の製造方法。
- 前記第2ストレッサ層によって引っ張り応力が前記基板に加わり、及び前記第1ストレッサ層によって圧縮応力が前記基板に加わる、請求項1に記載の半導体素子の製造方法。
- 素子のNMOS領域に第1ゲート構造が配置され、かつ前記素子のPMOS領域に第2ゲート構造が配置されている基板を設ける工程と、
前記基板の上に第1応力形成材料層を形成する工程と、
第1ゲート構造を露出させ、かつ第2ゲート構造を被覆するように前記素子をマスクする工程と、
前記第1応力形成材料層の一部分が第1ゲート構造を被覆しているように、第1エッチングにより前記第1応力形成材料層を部分的にエッチングする工程とを備える、半導体素子の製造方法。
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US11/408,347 US7528029B2 (en) | 2006-04-21 | 2006-04-21 | Stressor integration and method thereof |
US11/408,347 | 2006-04-21 | ||
PCT/US2007/063439 WO2007124209A2 (en) | 2006-04-21 | 2007-03-07 | Stressor integration and method thereof |
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JP2009534849A true JP2009534849A (ja) | 2009-09-24 |
JP5296672B2 JP5296672B2 (ja) | 2013-09-25 |
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EP (1) | EP2013903A4 (ja) |
JP (1) | JP5296672B2 (ja) |
KR (1) | KR20090008249A (ja) |
CN (1) | CN101427364A (ja) |
TW (1) | TW200741978A (ja) |
WO (1) | WO2007124209A2 (ja) |
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CN102376646B (zh) * | 2010-08-24 | 2014-03-19 | 中芯国际集成电路制造(上海)有限公司 | 改善双应力氮化物表面形态的方法 |
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- 2007-03-07 WO PCT/US2007/063439 patent/WO2007124209A2/en active Application Filing
- 2007-03-07 EP EP07758028A patent/EP2013903A4/en not_active Withdrawn
- 2007-03-07 KR KR1020087025621A patent/KR20090008249A/ko not_active Application Discontinuation
- 2007-03-07 JP JP2009506654A patent/JP5296672B2/ja active Active
- 2007-03-07 CN CNA2007800142585A patent/CN101427364A/zh active Pending
- 2007-03-21 TW TW096109790A patent/TW200741978A/zh unknown
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Cited By (3)
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WO2012002027A1 (ja) * | 2010-06-29 | 2012-01-05 | 東京エレクトロン株式会社 | エッチング方法及び装置 |
KR101333352B1 (ko) | 2010-06-29 | 2013-11-28 | 도쿄엘렉트론가부시키가이샤 | 에칭 방법 및 장치 |
US8835320B2 (en) | 2010-06-29 | 2014-09-16 | Tokyo Electron Limited | Etching method and device |
Also Published As
Publication number | Publication date |
---|---|
EP2013903A2 (en) | 2009-01-14 |
TW200741978A (en) | 2007-11-01 |
WO2007124209A2 (en) | 2007-11-01 |
WO2007124209A3 (en) | 2008-09-04 |
KR20090008249A (ko) | 2009-01-21 |
EP2013903A4 (en) | 2009-12-16 |
CN101427364A (zh) | 2009-05-06 |
US7528029B2 (en) | 2009-05-05 |
US20070249113A1 (en) | 2007-10-25 |
JP5296672B2 (ja) | 2013-09-25 |
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