JP4901476B2 - 格子定数の異なる材料を用いる半導体構造及び同構造の形成方法 - Google Patents
格子定数の異なる材料を用いる半導体構造及び同構造の形成方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 127
- 239000000463 material Substances 0.000 title claims description 121
- 238000000034 method Methods 0.000 title claims description 33
- 239000000758 substrate Substances 0.000 claims description 74
- 230000007704 transition Effects 0.000 claims description 64
- 230000007547 defect Effects 0.000 claims description 41
- 239000000203 mixture Substances 0.000 claims description 12
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 25
- 238000002955 isolation Methods 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 229910003811 SiGeC Inorganic materials 0.000 description 8
- 230000008901 benefit Effects 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 6
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 6
- 238000005530 etching Methods 0.000 description 6
- MDPILPRLPQYEEN-UHFFFAOYSA-N aluminium arsenide Chemical compound [As]#[Al] MDPILPRLPQYEEN-UHFFFAOYSA-N 0.000 description 5
- 239000003989 dielectric material Substances 0.000 description 5
- 238000000059 patterning Methods 0.000 description 5
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 4
- 239000002800 charge carrier Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 3
- 229910021332 silicide Inorganic materials 0.000 description 3
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical group [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 235000012431 wafers Nutrition 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- AXQKVSDUCKWEKE-UHFFFAOYSA-N [C].[Ge].[Si] Chemical compound [C].[Ge].[Si] AXQKVSDUCKWEKE-UHFFFAOYSA-N 0.000 description 2
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001289 rapid thermal chemical vapour deposition Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910005540 GaP Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- HZXMRANICFIONG-UHFFFAOYSA-N gallium phosphide Chemical compound [Ga]#P HZXMRANICFIONG-UHFFFAOYSA-N 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Description
図中の各要素は簡単明瞭であるように図示されており、必ずしも縮尺通りに描かれていない点は当業者であれば理解するであろう。例えば、図中の一部の要素の寸法は、本発明の開示の実施形態の理解向上を助けるために他の要素に対して強調している場合がある。
34 半導体デバイス層
36 歪み材料層
40 ゲート誘電体材料
44 拡大注入領域
46 側壁スペーサ
48 ソース/ドレイン領域
Claims (4)
- 第1格子定数を有する第1緩和半導体材料を含む基板と、
前記基板を覆い、前記第1格子定数とは異なる第2格子定数を有する第2緩和半導体材料を含む半導体デバイス層と、
前記基板と前記半導体デバイス層との間に介在された誘電体層と、
を備え、
前記誘電体層が、前記第1格子定数と前記第2格子定数との間で遷移するように前記誘電体層内に配置されたプログラムされた遷移帯を有し、前記プログラムされた遷移帯が複数層を含み、前記複数層の隣接する層が異なる格子定数を有し、該隣接する層の1つが欠陥を形成するのに必要な第1限界厚さを超える第1厚さを有し、且つ前記隣接する層の他のものが第2限界厚さを超えない第2厚さを有しており、前記複数層の各隣接する層が、前記プログラムされた遷移帯内の欠陥を促進して前記プログラムされた遷移帯の縁部に移行させる境界面を形成することを特徴とする半導体構造体。 - 前記半導体デバイス層を覆い、欠陥を最小化して歪みを維持するために限界厚さ未満の厚さを有する歪み材料層を更に備える請求項1に記載の半導体構造体。
- 半導体デバイス構造の形成方法であって、
第1格子定数を有する第1緩和材料から構成された基板手段を形成する段階と、
前記基板手段を覆い、前記第1格子定数を有する前記第1緩和材料から異なる第2格子定数の材料に遷移するようにプログラムされた遷移帯を定める開口部を有する誘電体層手段を形成する段階と、
欠陥を形成して歪みを除去するような材料組成の限界厚さを超える厚さを有する層と、歪みを生じる材料組成の限界厚さを超えない厚さを有する層とを交互に形成し、欠陥を促進して前記プログラムされた遷移帯の縁部に移行させる境界面を形成するために、隣接する任意の層とは異なる格子定数を各々が含む複数層を備え、最上層が欠陥が無いようにする前記プログラムされた遷移帯を形成する段階と、
少なくとも前記プログラムされた遷移帯を覆い、前記異なる格子定数である第2格子定数を有する第2緩和材料から構成される半導体デバイス層手段を形成する段階と、
を含み、
前記プログラムされた遷移帯は、前記基板手段及び前記半導体デバイス層手段間の格子定数の差異によって生じる歪が完全に除去され、且つ、全ての欠陥が前記プログラムされた遷移帯内で終端するように形成されていることを特徴とする半導体デバイスを形成する方法。 - 半導体デバイスを形成する方法であって、
第1格子定数を有する第1緩和材料からなる基板手段を形成する段階と、
前記基板手段の上に横たわる誘電層手段を形成する段階であって、該誘電層手段が、第1格子定数を備えた第1の関連する材料から、異なる第2格子定数材料まで遷移するようにプログラムされた遷移帯を画定するための開口部を備え、
複数層を備えて前記プログラムされた遷移帯を形成する段階と、
を含み、
前記複数層の複数層の隣接する層が異なる格子定数を有し、該隣接する層の各々の1つが欠陥を形成するのに必要な限界厚さを超える第1厚さを有し且つ前記隣接する層の各々の他のものが欠陥を形成するのに要求される限界厚さを超えない第2厚さを有しており、前記複数層の各隣接する層が、前記プログラムされた遷移帯内の欠陥を促進して前記プログラムされた遷移帯の縁部に移行させる境界面を形成し、前記プログラムされた遷移帯の最上層が欠陥が無いようにする段階と、
を含む方法。
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US10/677,844 | 2003-10-02 | ||
US10/677,844 US6831350B1 (en) | 2003-10-02 | 2003-10-02 | Semiconductor structure with different lattice constant materials and method for forming the same |
PCT/US2004/031516 WO2005034230A1 (en) | 2003-10-02 | 2004-09-27 | Semiconductor structure with different lattice constant materials and method for forming the same |
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US8324660B2 (en) | 2005-05-17 | 2012-12-04 | Taiwan Semiconductor Manufacturing Company, Ltd. | Lattice-mismatched semiconductor structures with reduced dislocation defect densities and related methods for device fabrication |
US9153645B2 (en) | 2005-05-17 | 2015-10-06 | Taiwan Semiconductor Manufacturing Company, Ltd. | Lattice-mismatched semiconductor structures with reduced dislocation defect densities and related methods for device fabrication |
FR2888400B1 (fr) * | 2005-07-08 | 2007-10-19 | Soitec Silicon On Insulator | Procede de prelevement de couche |
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US7479422B2 (en) * | 2006-03-10 | 2009-01-20 | Freescale Semiconductor, Inc. | Semiconductor device with stressors and method therefor |
US7777250B2 (en) | 2006-03-24 | 2010-08-17 | Taiwan Semiconductor Manufacturing Company, Ltd. | Lattice-mismatched semiconductor structures and related methods for device fabrication |
US7700420B2 (en) * | 2006-04-12 | 2010-04-20 | Freescale Semiconductor, Inc. | Integrated circuit with different channel materials for P and N channel transistors and method therefor |
EP2062290B1 (en) | 2006-09-07 | 2019-08-28 | Taiwan Semiconductor Manufacturing Company, Ltd. | Defect reduction using aspect ratio trapping |
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US6831350B1 (en) | 2004-12-14 |
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JP2007507896A (ja) | 2007-03-29 |
CN100487876C (zh) | 2009-05-13 |
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TWI356491B (en) | 2012-01-11 |
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