JP6618528B2 - フィン緩和を含む半導体デバイスを製造するための方法および関連する構造 - Google Patents
フィン緩和を含む半導体デバイスを製造するための方法および関連する構造 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 108
- 238000000034 method Methods 0.000 title claims description 101
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000463 material Substances 0.000 claims description 101
- 238000010438 heat treatment Methods 0.000 claims description 90
- 230000008569 process Effects 0.000 claims description 57
- 239000000758 substrate Substances 0.000 claims description 35
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 22
- 229910052710 silicon Inorganic materials 0.000 claims description 22
- 239000010703 silicon Substances 0.000 claims description 22
- 239000013078 crystal Substances 0.000 claims description 17
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 12
- 230000005669 field effect Effects 0.000 claims description 10
- 230000000873 masking effect Effects 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 7
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical group [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 238000005530 etching Methods 0.000 description 8
- 230000002040 relaxant effect Effects 0.000 description 5
- 241000894007 species Species 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 241001417523 Plesiopidae Species 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
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- H01L29/66409—Unipolar field-effect transistors
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- H01L29/66795—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
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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
- H01L21/823821—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of transistors with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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- 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
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- H01L21/84—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 other than a semiconductor body, e.g. being an insulating body
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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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/20—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L29/201—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds including two or more compounds, e.g. alloys
- H01L29/205—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds including two or more compounds, e.g. alloys in different semiconductor regions, e.g. heterojunctions
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- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
本出願は、2014年5月8日出願の「METHOD FOR FABRICATING A SEMICONDUCTOR DEVICE INCLUDING FIN RELAXATION, AND RELATED STRUCTURES(フィン緩和を含む半導体デバイスを製造するための方法および関連する構造)」という名称の米国特許出願第14/272,660号の出願日の利益を主張する。
本明細書において使用されるように、「フィン」という用語は、長さ、幅、および高さを有する細長く、三次元の有限で境界のある半導体材料の体積を意味し、ここでは長さが幅よりも大きい。フィンの幅および長さは、いくつかの実施形態ではフィンの長さに沿って変化することがある。
BOXの粘性を低下させる技術を使用することが、同様の処理時間を維持しつつ、ηの低下の各桁ごとに100℃だけアニーリングT°を低下させることを可能にする。
アニールの後で、第1のフィン108の下方の絶縁性層104内の歪みが、やはり少なくとも実質的に減少するまたは除去されることがあり得るが、歪みは、第2のフィン110の各々の少なくとも一部分の下方の絶縁性層104に残ることがある。
− 緩和nFETおよびpFET(小さい漏れ)を有するSRAM部品
開示の追加の非限定的な例の実施形態が下記に述べられる。
実施形態4: 歪み半導体材料の層が、引張り歪みシリコン層を含む、実施形態1から3のいずれか1つに記載の方法。
実施形態6: 1μmよりも短い長さを有するように少なくとも1つの第1のフィンを形成するステップをさらに含む、実施形態1から4のいずれか1つに記載の方法。
実施形態11: 歪み半導体材料の層が、圧縮歪みシリコンゲルマニウム層を含む、実施形態10に記載の方法。
実施形態13: 1μmよりも短い長さを有するように少なくとも1つの第1のフィンを形成するステップをさらに含む、実施形態10から12のいずれか1つに記載の方法。
実施形態16: 少なくとも1つの第1のフィンを形成するステップに先立って絶縁性層中へとイオンを注入するステップと、注入したイオンを使用して絶縁性層の粘性を低下させるステップとをさらに含む、実施形態1から15のいずれか1つに記載の方法。
Claims (14)
- 半導体デバイスを製造する方法であって、
ベース基板上の絶縁性層の上に積層されている歪み半導体材料の層(102)に少なくとも1つの第1のフィン(108)を形成するステップと、
前記ベース基板上の絶縁性層の上に積層されている歪み半導体材料の層(102)に少なくとも1つの第2のフィン(110)を形成するステップと、
前記少なくとも1つの第1のフィン(108)を形成するステップ、及び、前記ベース基板上の絶縁性層の上に積層されている歪み半導体材料の層(102)に少なくとも1つの第2のフィン(110)を形成するステップの後で、前記少なくとも1つの第1のフィン(108)内および前記少なくとも1つの第2のフィン(110)内の応力の緩和を生じさせるような、所定の時間、温度及び圧力で熱処理を行うステップと、
を含み、
前記少なくとも1つの第1のフィン(108)内および前記少なくとも1つの第2のフィン(110)内の応力の緩和を生じさせるような、所定の時間、温度及び圧力で熱処理を行うステップによって、前記少なくとも1つの第2のフィン(110)の応力が完全には緩和されないような長さを、前記少なくとも1つの第2のフィン(110)が有し、
前記少なくとも1つの第1のフィン(108)内および前記少なくとも1つの第2のフィン(110)内の応力の緩和を生じさせるような、所定の時間、温度及び圧力で熱処理を行うステップが、前記絶縁性層の密度を増加させるステップをさらに含む、
ことを特徴とする方法。 - 前記少なくとも1つの第1のフィン(108)が、前記少なくとも1つの第1のフィン(108)内および前記少なくとも1つの第2のフィン(110)内の応力の緩和を生じさせるような、所定の時間、温度及び圧力で熱処理を行うステップ後では第1の格子定数を有し、前記少なくとも1つの第2のフィン(110)が、前記第1の格子定数とは異なる第2の格子定数を有し、前記方法が、
前記少なくとも1つの第1のフィン(108)および前記少なくとも1つの第2のフィン(110)から選択される1つのフィンを含むn型電界効果トランジスタを形成するステップであって、前記1つのフィンが最大の格子定数を有する、形成するステップと、
前記少なくとも1つの第1のフィン(108)および前記少なくとも1つの第2のフィン(110)から選択されるもう1つのフィンを含むp型電界効果トランジスタを形成するステップであって、前記もう1つのフィンが最小の格子定数を有する、形成するステップと
をさらに含む、請求項1に記載の方法。 - 前記歪み半導体材料の層(102)が、引張り応力の状態である、請求項2に記載の方法。
- 前記歪み半導体材料の層(102)が、引張り歪みシリコン層を含む、請求項3に記載の方法。
- 少なくとも1μmの長さを有するように前記少なくとも1つの第2のフィン(110)を形成するステップと、1μmよりも短い長さを有するように前記少なくとも1つの第1のフィン(108)を形成するステップとをさらに含む、請求項1〜4のいずれか一項に記載の方法。
- 前記少なくとも1つの第1のフィン(108)内および前記少なくとも1つの第2のフィン(110)内の応力の緩和を生じさせるような、所定の時間、温度及び圧力で熱処理を行うステップが、950℃と1250℃との間の温度で、不活性雰囲気中で、1分と10時間との間の時間にわたって前記熱処理を実行するステップを含む、請求項1〜4のいずれか一項に記載の方法。
- 前記少なくとも1つの第1のフィン(108)内および前記少なくとも1つの第2のフィン(110)内の応力の緩和を生じさせるような、所定の時間、温度及び圧力で熱処理を行うステップの後で、かつ前記少なくとも1つの第1のフィン(108)と前記少なくとも1つの第2のフィン(110)から選択されるもう1つのフィンを含むp型電界効果トランジスタを形成するステップに先立って、
前記少なくとも1つの第1のフィン(108)と前記少なくとも1つの第2のフィン(110)から選択されるもう1つのフィンの上にエピタキシャルシリコンゲルマニウム混晶を堆積するステップと、
前記少なくとも1つの第1のフィン(108)と前記少なくとも1つの第2のフィン(110)から選択されるもう1つのフィンの中へとゲルマニウム原子を導入するため、および前記少なくとも1つの第1のフィン(108)と前記少なくとも1つの第2のフィン(110)から選択されるもう1つのフィンの表面を覆って酸化シリコン層を形成するために酸化濃縮プロセスを実行するステップと、
前記酸化シリコン層を除去するステップと、
を実行することをさらに含む、請求項2〜4のいずれか一項に記載の方法。 - 前記少なくとも1つの第1のフィン(108)と前記少なくとも1つの第2のフィン(110)から選択されるもう1つのフィンを覆ってエピタキシャルシリコンゲルマニウム混晶を堆積するステップの前に、前記少なくとも1つの第1のフィン(108)と前記少なくとも1つの第2のフィン(110)から選択されるもう1つのフィンをマスクするステップをさらに含む、請求項7に記載の方法。
- 前記歪み半導体材料の層(102)が、圧縮応力の状態である、請求項1に記載の方法。
- 前記歪み半導体材料の層(102)が、圧縮歪みシリコンゲルマニウム層を含む、請求項9に記載の方法。
- 少なくとも1μmの長さを有するように前記少なくとも1つの第2のフィン(110)を形成するステップと、1μmよりも短い長さを有するように前記少なくとも1つの第1のフィン(108)を形成するステップとをさらに含む、請求項9に記載の方法。
- 前記少なくとも1つの第1のフィン(108)内および前記少なくとも1つの第2のフィン(110)内の応力の緩和を生じさせるような、所定の時間、温度及び圧力で熱処理を行うステップが、950℃と1250℃との間の温度で、不活性雰囲気中で、10時間と1分との間の時間にわたって熱処理を実行するステップを含む、請求項9から11のいずれか一項に記載の方法。
- 前記少なくとも1つの第1のフィン(108)と前記少なくとも1つの第2のフィン(110)から選択されるもう1つのフィンの上にエピタキシャルシリコンゲルマニウム混晶を堆積するステップの前に、前記少なくとも1つの第2のフィン(110)をマスクするステップをさらに含む、請求項7に記載の方法。
- 前記ベース基板上の絶縁性層の上に積層されている歪み半導体材料の層(102)に少なくとも1つの第1のフィン(108)を形成するステップに先立って、前記絶縁性層中へとイオンを注入するステップと、前記注入したイオンを使用して前記絶縁性層の粘性を低下させるステップとをさらに含む、請求項1〜13のいずれか一項に記載の方法。
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PCT/US2015/027974 WO2015171362A1 (en) | 2014-05-08 | 2015-04-28 | Method for fabricating a semiconductor device including fin relaxation, and related structures |
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US9607901B2 (en) * | 2015-05-06 | 2017-03-28 | Stmicroelectronics, Inc. | Integrated tensile strained silicon NFET and compressive strained silicon-germanium PFET implemented in FINFET technology |
US9589811B2 (en) * | 2015-06-24 | 2017-03-07 | Varian Semiconductor Equipment Associates, Inc. | FinFET spacer etch with no fin recess and no gate-spacer pull-down |
US9728642B2 (en) * | 2015-11-04 | 2017-08-08 | International Business Machines Corporation | Retaining strain in finFET devices |
US9483592B1 (en) * | 2015-12-07 | 2016-11-01 | International Business Machines Corporation | Maintaining stress in a layout design of an integrated circuit having fin-type field-effect transistor devices |
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US7018909B2 (en) | 2003-02-28 | 2006-03-28 | S.O.I.Tec Silicon On Insulator Technologies S.A. | Forming structures that include a relaxed or pseudo-relaxed layer on a substrate |
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