JP2007165584A - 半導体基板の製造方法及び半導体装置の製造方法 - Google Patents
半導体基板の製造方法及び半導体装置の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 245
- 239000000758 substrate Substances 0.000 title claims abstract description 179
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 86
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 143
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 143
- 239000010703 silicon Substances 0.000 claims abstract description 143
- 238000000034 method Methods 0.000 claims abstract description 72
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims abstract description 47
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000005530 etching Methods 0.000 claims description 16
- 238000000151 deposition Methods 0.000 claims description 2
- 238000011109 contamination Methods 0.000 abstract description 15
- 229910052732 germanium Inorganic materials 0.000 abstract description 14
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 abstract description 14
- 230000002542 deteriorative effect Effects 0.000 abstract description 3
- 238000003892 spreading Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 44
- 239000013078 crystal Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 12
- 238000002955 isolation Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 229910052814 silicon oxide Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910020328 SiSn Inorganic materials 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052949 galena Inorganic materials 0.000 description 2
- 229910003465 moissanite Inorganic materials 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 229910000078 germane Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000077 silane Inorganic materials 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
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76264—SOI together with lateral isolation, e.g. using local oxidation of silicon, or dielectric or polycristalline material refilled trench or air gap isolation regions, e.g. completely isolated semiconductor islands
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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
- H01L21/20—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy
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- 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
- H01L29/66742—Thin film unipolar transistors
- H01L29/66772—Monocristalline silicon transistors on insulating substrates, e.g. quartz substrates
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Abstract
【解決手段】半導体基板41の製造方法は、シリコン基板11上におけるSOI素子形成領域13のみに、シリコンバッファ層18及びシリコンゲルマニウム層15が成長する条件でエピタキシャル成長させる。次に、シリコン基板11上の全面にシリコン層16を成長させる。そのあと、シリコンゲルマニウム層15に代えて埋め込み絶縁層31を埋め込む。これにより、引き続く工程において、シリコン基板11上に汚染の原因であるシリコンゲルマニウム層15が残ることを少なくすることができ、処理を行う炉の中にゲルマニウムが広がることを抑えることが可能となる。
【選択図】図4
Description
Claims (8)
- 半導体基材上に第1半導体層を形成する工程と、
前記第1半導体層よりもエッチングの選択比が小さい第2半導体層を前記第1半導体層の上に形成する工程と、
素子領域周辺の前記第2半導体層および前記第1半導体層の一部を除去して前記半導体基材を露出させる支持体穴を形成する工程と、
前記支持体穴を埋め、かつ前記第2半導体層が覆われるようにして前記半導体基材上に支持体形成層を形成する工程と、
前記支持体穴と前記素子領域とを含む領域を残して、その他の部分をエッチングすることにより、支持体および前記支持体の下方に位置する前記第1半導体層及び前記第2半導体層の端部の一部を露出させる露出面を形成する工程と、
前記露出面を介して前記第1半導体層をエッチングすることにより、前記素子領域の前記第2半導体層と前記半導体基材との間に空洞部を形成する工程と、
前記空洞部内に埋め込み絶縁層を形成する工程と、
前記第2半導体層の上方を平坦化処理し、前記第2半導体層上に位置する前記支持体の一部を取り除く工程と、を含み、
前記第1半導体層を形成する工程は、前記半導体基材上における酸化膜の無い第1領域に前記第1半導体層を第1条件で成膜することを特徴とする半導体基板の製造方法。 - 請求項1に記載の半導体基板の製造方法であって、
前記第1半導体層を形成する工程及び前記第2半導体層を形成する工程は、エピタキシャル成長技術を用いて前記第1半導体層及び前記第2半導体層を成長させることを特徴とする半導体基板の製造方法。 - 請求項1又は2に記載の半導体基板の製造方法であって、
前記第1半導体層を形成する工程における前記第1条件は、前記半導体基材の温度を450℃に維持するとともに、前記第1領域に前記第1半導体層を30nm成膜することを特徴とする半導体基板の製造方法。 - 請求項1〜3のいずれか一項に記載の半導体基板の製造方法であって、
前記第1半導体層を形成する工程の前に、前記半導体基材の結晶性を引き継いで前記第1半導体層を形成すべく前記半導体基材上に第3半導体層を形成する工程を更に有し、
前記第3半導体層を形成する工程は、前記半導体基材が露出している領域のみに前記第3半導体層を第2条件で成膜することを特徴とする半導体基板の製造方法。 - 請求項4に記載の半導体基板の製造方法であって、
前記第3半導体層を形成する工程における前記第2条件は、前記半導体基材の温度を600℃から450℃に下げながら、前記第1領域に前記第3半導体層を20nm成膜することを特徴とする半導体基板の製造方法。 - 請求項1〜5のいずれか一項に記載の半導体基板の製造方法であって、
前記第2半導体層を形成する工程における成膜条件は、前記半導体基材の温度を450℃から600℃に上げながら、前記第2半導体層を前記第1半導体層上及び前記半導体基材上に100nm成膜することを特徴とする半導体基板の製造方法。 - 請求項1〜6のいずれか一項に記載の半導体基板の製造方法であって、
前記第1半導体層は、シリコンゲルマニウム層であり、
前記第2半導体層は、シリコン層であることを特徴とする半導体基板の製造方法。 - 請求項1に記載の半導体基板の製造方法を行ったあとで、前記第2半導体層にトランジスタを形成する工程を有することを特徴とする半導体装置の製造方法。
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JP2005359984A JP4792957B2 (ja) | 2005-12-14 | 2005-12-14 | 半導体基板の製造方法及び半導体装置の製造方法 |
US11/605,588 US7396733B2 (en) | 2005-12-14 | 2006-11-29 | Method for manufacturing semiconductor substrate and method for manufacturing semiconductor device |
KR1020060126286A KR20070063432A (ko) | 2005-12-14 | 2006-12-12 | 반도체 기판의 제조 방법 및 반도체 장치의 제조 방법 |
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FR2881273B1 (fr) * | 2005-01-21 | 2007-05-04 | St Microelectronics Sa | Procede de formation d'un substrat semi-conducteur de circuit integre |
JP2007158295A (ja) * | 2005-11-10 | 2007-06-21 | Seiko Epson Corp | 半導体装置および半導体装置の製造方法 |
JP4792956B2 (ja) * | 2005-12-13 | 2011-10-12 | セイコーエプソン株式会社 | 半導体基板の製造方法及び半導体装置の製造方法 |
US7947552B2 (en) * | 2008-04-21 | 2011-05-24 | Infineon Technologies Ag | Process for the simultaneous deposition of crystalline and amorphous layers with doping |
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WO2005036638A1 (ja) * | 2003-10-10 | 2005-04-21 | Tokyo Institute Of Technology | 半導体基板、半導体装置及び半導体基板の作製方法 |
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EP1421607A2 (en) * | 2001-02-12 | 2004-05-26 | ASM America, Inc. | Improved process for deposition of semiconductor films |
US6703271B2 (en) * | 2001-11-30 | 2004-03-09 | Taiwan Semiconductor Manufacturing Company | Complementary metal oxide semiconductor transistor technology using selective epitaxy of a strained silicon germanium layer |
JP4678163B2 (ja) | 2004-09-30 | 2011-04-27 | セイコーエプソン株式会社 | 半導体基板の製造方法および半導体装置の製造方法 |
JP4759967B2 (ja) | 2004-10-01 | 2011-08-31 | セイコーエプソン株式会社 | 半導体装置の製造方法 |
JP4737378B2 (ja) | 2005-01-28 | 2011-07-27 | セイコーエプソン株式会社 | 半導体装置の製造方法 |
JP4792757B2 (ja) | 2005-01-31 | 2011-10-12 | セイコーエプソン株式会社 | 半導体基板の製造方法および半導体装置の製造方法 |
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US20070134885A1 (en) | 2007-06-14 |
KR20070063432A (ko) | 2007-06-19 |
JP4792957B2 (ja) | 2011-10-12 |
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