JP6353440B2 - シリコンオンインシュレータ基板上に導波路の光分離を提供する方法および構造 - Google Patents
シリコンオンインシュレータ基板上に導波路の光分離を提供する方法および構造 Download PDFInfo
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- JP6353440B2 JP6353440B2 JP2015516072A JP2015516072A JP6353440B2 JP 6353440 B2 JP6353440 B2 JP 6353440B2 JP 2015516072 A JP2015516072 A JP 2015516072A JP 2015516072 A JP2015516072 A JP 2015516072A JP 6353440 B2 JP6353440 B2 JP 6353440B2
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- 239000000758 substrate Substances 0.000 title claims description 55
- 238000000034 method Methods 0.000 title claims description 47
- 239000012212 insulator Substances 0.000 title claims description 18
- 238000002955 isolation Methods 0.000 title claims description 15
- 230000003287 optical effect Effects 0.000 title description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 47
- 229910052710 silicon Inorganic materials 0.000 claims description 44
- 239000010703 silicon Substances 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 239000003989 dielectric material Substances 0.000 claims description 20
- 238000005253 cladding Methods 0.000 claims description 17
- 239000004065 semiconductor Substances 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 2
- 239000002019 doping agent Substances 0.000 claims 1
- 230000005669 field effect Effects 0.000 claims 1
- 238000000059 patterning Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 description 48
- 239000011162 core material Substances 0.000 description 39
- 239000010410 layer Substances 0.000 description 12
- 239000011797 cavity material Substances 0.000 description 11
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000005530 etching Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000408659 Darpa Species 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 230000000644 propagated effect Effects 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
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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
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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
- H01L21/76283—Lateral isolation by refilling of trenches with dielectric material
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/13—Integrated optical circuits characterised by the manufacturing method
- G02B6/136—Integrated optical circuits characterised by the manufacturing method by etching
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
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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
- H01L21/76202—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using a local oxidation of silicon, e.g. LOCOS, SWAMI, SILO
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/01—Manufacture or treatment
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12035—Materials
- G02B2006/12061—Silicon
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- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
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Description
Claims (20)
- 集積構造を形成する方法であって、
第1の基板中に分離領域を形成することと、
第2の基板上に酸化物層を形成することと、
前記分離領域が前記酸化物層と相対するように、前記第1の基板と前記第2の基板を接合することと、
前記第1の基板と接合された前記第2の基板を切断して、前記酸化物層上に前記第2の基板の一部を残存させた半導体材料層を形成することと、
前記半導体材料層をパターン化して、前記分離領域の上方に整列され、前記半導体材料層からなる導波路コアを形成することと、
を含み、
前記第1の基板および前記第2の基板が各々、シリコンからなり、前記分離領域と整列する区域で画定されるシリコンフォトニクス区域をさらに備え、
前記分離領域を形成することは、前記第1の基板中にトレンチを形成し、前記トレンチを第1の誘電体材料で充填することを含み、
前記第2の基板上の前記酸化物層はBOXであって、前記BOXと前記分離領域の前記第1の誘電体材料を合わせた厚さが少なくとも1umであり、
前記BOXの厚さが、200nm以下である、集積構造を形成する方法。 - 前記導波路コアを形成することは、前記導波路コアが前記シリコンフォトニクス区域内に配置されるように前記半導体材料層をパターン化する、請求項1に記載の集積構造を形成する方法。
- 前記酸化物層上に前記第2の基板の一部を残存させた半導体材料層を形成することは、CMPまたは研削を含む技術により形成する、請求項1に記載の集積構造を形成する方法。
- 前記分離領域の前記第1の誘電体材料の厚さが、約800nm〜約1200nmの範囲である、請求項1に記載の集積構造を形成する方法。
- 前記導波路コアを包囲するクラッディング領域を形成することをさらに含み、前記クラッディング領域は、前記トレンチ内の前記第1誘電体材料と、前記シリコンフォトニクス区域内にある前記酸化物層の一部からなる、請求項1に記載の集積構造を形成する方法。
- 前記導波路コアがシリコンからなる、請求項5に記載の集積構造を形成する方法。
- 前記酸化物層が二酸化シリコンを含む、請求項6に記載の集積構造を形成する方法。
- 前記クラッディング領域を形成することは、前記導波路コアの側面上に第2の誘電体材料を形成することをさらに備える、請求項5に記載の集積構造を形成する方法。
- 前記第1の誘電体材料および前記第2の誘電体材料のそれぞれが、二酸化シリコンを含む、請求項8に記載の集積構造を形成する方法。
- 前記第1の基板と前記第2の基板を接合することは、非晶質シリコンを前記第1の基板および前記第2の基板上の酸化物層のうちのいずれか一方の上に形成することと、前記非晶質シリコンが接合材料として機能して前記第1の基板を前記第2の基板に接合するように、前記基板を一緒に押圧することと、をさらに含む、請求項1に記載の集積構造を形成する方法。
- 前記第1の基板と前記第2の基板を接合することは、前記酸化物層からなる埋め込み絶縁体を有するシリコンオンインシュレータ構造を形成する、請求項1に記載の集積構造を形成する方法。
- 前記第2の基板を切断することは、前記切断前に前記第2の基板中に切断線を形成するドーパントをインプラントすること、を含む請求項1に記載の集積構造を形成する方法。
- 前記第2の基板を切断することは、前記切断線に沿って切断して、前記第2の基板の一部分を除去することによって前記半導体材料層を形成すること、を含む請求項12に記載の集積構造を形成する方法。
- 前記第2の基板の前記除去された部分を、別の集積構造中の基板として用いられるように再利用することをさらに含む、請求項13に記載の集積構造を形成する方法。
- 前記分離領域は、前記導波路コアの幅よりも広い幅を有し、前記導波路コアの両側面を超えて外側に延在する、請求項1に記載の集積構造を形成する方法。
- 前記分離領域は、導波路コアの全長に沿って延在する、請求項15に記載の集積構造を形成する方法。
- 前記導波路コアの側面上の前記第2の誘電体材料上に第3の誘電体材料を形成すること、をさらに含む請求項8に記載の集積構造を形成する方法。
- 前記第3の誘電体材料は二酸化シリコンを含み、上部クラッディングとして機能する、請求項17に記載の集積構造を形成する方法。
- 前記半導体材料層からなる導波路コアを形成することは、前記シリコンフォトニクス区域以外の前記酸化物層上に前記半導体材料層からなる電子回路区域を形成することをさらに含む、請求項1に記載の集積構造を形成する方法。
- 前記電子回路区域に電界効果トランジスタを形成することをさらに含む、請求項19に記載の集積構造を形成する方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US13/487,573 | 2012-06-04 | ||
US13/487,573 US9709740B2 (en) | 2012-06-04 | 2012-06-04 | Method and structure providing optical isolation of a waveguide on a silicon-on-insulator substrate |
PCT/US2013/043347 WO2014042716A1 (en) | 2012-06-04 | 2013-05-30 | Method and structure providing optical isolation of a waveguide on a silicon-on-insulator substrate |
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JP2015526883A JP2015526883A (ja) | 2015-09-10 |
JP6353440B2 true JP6353440B2 (ja) | 2018-07-04 |
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US (4) | US9709740B2 (ja) |
EP (1) | EP2856499B1 (ja) |
JP (1) | JP6353440B2 (ja) |
KR (1) | KR101770886B1 (ja) |
CN (1) | CN104412375B (ja) |
SG (1) | SG11201408258TA (ja) |
TW (1) | TWI503585B (ja) |
WO (1) | WO2014042716A1 (ja) |
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US9709740B2 (en) | 2017-07-18 |
US20170315295A1 (en) | 2017-11-02 |
KR20150013900A (ko) | 2015-02-05 |
EP2856499B1 (en) | 2024-02-07 |
CN104412375B (zh) | 2018-03-09 |
JP2015526883A (ja) | 2015-09-10 |
TW201405184A (zh) | 2014-02-01 |
US20130322811A1 (en) | 2013-12-05 |
SG11201408258TA (en) | 2015-02-27 |
US20190377133A1 (en) | 2019-12-12 |
US20190162903A1 (en) | 2019-05-30 |
WO2014042716A1 (en) | 2014-03-20 |
EP2856499A1 (en) | 2015-04-08 |
US10215921B2 (en) | 2019-02-26 |
TWI503585B (zh) | 2015-10-11 |
US10502896B2 (en) | 2019-12-10 |
CN104412375A (zh) | 2015-03-11 |
KR101770886B1 (ko) | 2017-08-23 |
US11237327B2 (en) | 2022-02-01 |
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