JP4175650B2 - 半導体装置の製造方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims description 75
- 238000004519 manufacturing process Methods 0.000 title claims description 53
- 239000000758 substrate Substances 0.000 claims description 114
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 112
- 229910052710 silicon Inorganic materials 0.000 claims description 112
- 239000010703 silicon Substances 0.000 claims description 112
- 238000000034 method Methods 0.000 claims description 91
- 238000005468 ion implantation Methods 0.000 claims description 49
- 238000002955 isolation Methods 0.000 claims description 47
- 229910052739 hydrogen Inorganic materials 0.000 claims description 35
- 239000001257 hydrogen Substances 0.000 claims description 35
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 31
- 239000011521 glass Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 23
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- 238000002347 injection Methods 0.000 description 6
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000004913 activation Effects 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
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- 238000000059 patterning Methods 0.000 description 1
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
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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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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
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- 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
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/32—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers using masks
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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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
- H01L21/71—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
- H01L21/76251—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques
- H01L21/76254—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques with separation/delamination along an ion implanted layer, e.g. Smart-cut, Unibond
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1203—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body the substrate comprising an insulating body on a semiconductor body, e.g. SOI
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/68—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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78651—Silicon transistors
- H01L29/78654—Monocrystalline silicon transistors
Description
Michel Bruel ,"Smart-Cut:A New Silicon On Insulator Material Technology Based on Hydorogen Implantation and Wafer Bonding",Jpn.J.Appl.Phys.,Vol.36(1997),pp.1636-1641
すなわち、このような段差構造があるとシリコン基板101に水素注入層115を確実に形成できない結果、所定の厚さのシリコン層を有する半導体装置を製造することが極めて困難であるという問題がある。なお、段差構造があれば上記LOCOS酸化膜を形成する手法に限らず同様の問題がある。
次に、本発明の作用について説明する。
図1〜図14は、本発明に係る半導体装置及びその製造方法の実施形態1を示す断面図である。
次に、本発明に係る半導体装置Sの製造方法について、図1〜図14を参照して説明する。
したがって、この実施形態1によると、シリコン基板1の第2領域R2に溝部35を形成して、第2領域R2の溝部35に形成するLOCOS酸化膜5の表面を、活性領域30の上のゲート酸化膜7の表面と同じ高さに形成するようにしたので、模式図である図15に矢印で示すように、シリコン層1の第1領域R1及び第2領域R2の双方に対し、同じ深さに比較的均一に剥離用物質である水素19をイオン注入することができる。その結果、水素19のシリコン層1へのイオン注入を容易に制御できるため、シリコン層1に剥離層32精度良く形成し、シリコン層1の一部を確実に分離することができる。
図16〜図18は、本発明に係る半導体装置の実施形態2を示す断面図である。尚、図1〜図14と同じ部分については、同じ符号を付して、その詳細な説明は省略する。
次に、本実施形態の半導体装置Sの製造方法について、図16〜図17を参照して説明する。
図19〜図27は、本発明に係る半導体装置Sの実施形態3を示す断面図である。
次に、本実施形態の半導体装置Sの製造方法について、図19〜図27を参照して説明する。
上記実施形態では、シリコン基板1に予め溝部35を形成するようにしたが、本発明はこれに限定されるものではない。すなわち、溝部35を形成しないで、平面状のシリコン基板1の表面に、直接にLOCOS酸化膜5をLOCOS法により形成するようにしてもよい。この場合、LOCOS酸化膜5は、活性領域を覆うゲート酸化膜7等の膜の表面から突出して形成されるため、平坦化することが必要となる。
R1 第1領域
R2 第2領域
1 シリコン層、シリコン基板(半導体層)
5 LOCOS酸化膜
7 ゲート酸化膜(活性領域を覆う膜)
8 ゲート電極
9 ゲート配線層
16d ドレイン領域
16s ソース領域
19 水素(剥離用物質)
22d ドレイン電極(導電部)
22s ソース電極(導電部)
23 絶縁膜(平坦化膜)
24 ガラス基板(基板)
30 活性領域
32 剥離層
35 溝部
Claims (13)
- 活性領域が形成された複数の第1領域と、該各第1領域同士の間に設けられた第2領域とを有する基体層を備えた半導体装置の製造方法であって、
前記活性領域を覆う膜の表面と高さが同じようになるように前記第2領域に素子分離用絶縁膜を形成する素子分離用絶縁膜形成工程と、
前記素子分離用絶縁膜形成工程の後に、前記基体層に剥離用物質をイオン注入して剥離層を形成する剥離層形成工程と、
前記剥離層に沿って前記基体層の一部を分離する分離工程とを備え、
前記第1領域には、MOSトランジスタが形成され、
前記活性領域を覆う膜は、ゲート酸化膜であり、
前記ゲート酸化膜の表面に、前記MOSトランジスタのゲート電極を形成する工程を備えている
ことを特徴とする半導体装置の製造方法。 - 活性領域が形成された複数の第1領域と、該各第1領域同士の間に設けられた第2領域とを有する基体層を備えた半導体装置の製造方法であって、
前記第2領域における前記基体層の表面に対し、予め溝部を形成する溝部形成工程と、
前記溝部に対し、前記活性領域を覆う膜の表面と同じ高さになるように、LOCOS法によりLOCOS酸化膜を形成するLOCOS酸化膜形成工程と、
前記LOCOS酸化膜形成工程の後に、前記基体層に剥離用物質をイオン注入して剥離層を形成する剥離層形成工程と、
前記剥離層に沿って前記基体層の一部を分離する分離工程とを備え、
前記第1領域には、MOSトランジスタが形成され、
前記活性領域を覆う膜は、ゲート酸化膜であり、
前記ゲート酸化膜の表面に、前記MOSトランジスタのゲート電極を形成する工程を備えている
ことを特徴とする半導体装置の製造方法。 - 活性領域が形成された複数の第1領域と、該各第1領域同士の間に設けられた第2領域とを有する基体層を備えた半導体装置の製造方法であって、
前記第2領域に対し、LOCOS法によりLOCOS酸化膜を形成するLOCOS酸化膜形成工程と、
前記第2領域における前記LOCOS酸化膜の表面を、前記活性領域を覆う膜の表面と同じ高さに平坦化する平坦化工程と、
前記平坦化工程の後に、前記基体層に剥離用物質をイオン注入して剥離層を形成する剥離層形成工程と、
前記剥離層に沿って前記基体層の一部を分離する分離工程とを備え、
前記第1領域には、MOSトランジスタが形成され、
前記活性領域を覆う膜は、ゲート酸化膜であり、
前記ゲート酸化膜の表面に、前記MOSトランジスタのゲート電極を形成する工程を備えている
ことを特徴とする半導体装置の製造方法。 - 活性領域が形成された複数の第1領域と、該各第1領域同士の間に設けられた第2領域とを有する基体層を備えた半導体装置の製造方法であって、
前記第2領域における前記基体層の表面に対し、予め溝部を形成する溝部形成工程と、
前記溝部に素子分離用絶縁膜を充填した後、前記活性領域を覆う膜の表面と、前記第2領域の前記素子分離領用絶縁膜の表面とが同じ高さになるように平坦化する平坦化工程と、
前記平坦化工程の後に、前記基体層に剥離用物質をイオン注入して剥離層を形成する剥離層形成工程と、
前記剥離層に沿って前記基体層の一部を分離する分離工程とを備え、
前記第1領域には、MOSトランジスタが形成され、
前記活性領域を覆う膜は、ゲート酸化膜であり、
前記ゲート酸化膜の表面に、前記MOSトランジスタのゲート電極を形成する工程を備えている
ことを特徴とする半導体装置の製造方法。 - 請求項1又は4において、
前記第1領域の基体層と、前記素子分離用絶縁膜とを覆う平坦化膜を形成する平坦化膜形成工程と、
前記平坦化膜に基板を貼り付ける貼付工程とを備え、
前記貼付工程は、前記分離工程の前に行われる
ことを特徴とする半導体装置の製造方法。 - 請求項2又は3において、
前記第1領域の基体層と、前記LOCOS酸化膜とを覆う平坦化膜を形成する平坦化膜形成工程と、
前記平坦化膜に基板を貼り付ける貼付工程とを備え、
前記貼付工程は、前記分離工程の前に行われる
ことを特徴とする半導体装置の製造方法。 - 請求項5において、
前記素子分離用絶縁膜に、前記MOSトランジスタのゲート電極に接続されるゲート配線層を形成する工程を備えている
ことを特徴とする半導体装置の製造方法。 - 請求項6において、
前記LOCOS酸化膜に、前記MOSトランジスタのゲート電極に接続されるゲート配線層を形成する工程を備えている
ことを特徴とする半導体装置の製造方法。 - 請求項5〜8の何れか1つにおいて、
前記基板は、ガラス基板である
ことを特徴とする半導体装置の製造方法。 - 請求項1〜9の何れか1つにおいて、
前記基体層は、シリコン層である
ことを特徴とする半導体装置の製造方法。 - 請求項1〜10の何れか1つにおいて、
前記剥離用物質は、水素である
ことを特徴とする半導体装置の製造方法。 - 請求項5〜8の何れか1つにおいて、
前記MOSトランジスタのソース領域又はドレイン領域に接続される導電部を形成する導電部形成工程を備え、
前記導電部形成工程は、前記貼付工程の前に行われる
ことを特徴とする半導体装置の製造方法。 - 請求項5〜8の何れか1つにおいて、
前記MOSトランジスタのソース領域又はドレイン領域に接続される導電部を形成する導電部形成工程を備え、
前記導電部形成工程は、前記貼付工程の後に行われる
ことを特徴とする半導体装置の製造方法。
Priority Applications (5)
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JP2004246579A JP4175650B2 (ja) | 2004-08-26 | 2004-08-26 | 半導体装置の製造方法 |
US11/199,166 US7425475B2 (en) | 2004-08-26 | 2005-08-09 | Method for fabricating semiconductor device and semiconductor device |
KR1020050073449A KR100727525B1 (ko) | 2004-08-26 | 2005-08-10 | 반도체장치의 제조방법, 및 반도체장치 |
TW094129366A TWI270110B (en) | 2004-08-26 | 2005-08-26 | Method for fabricating semiconductor device and semiconductor device |
US12/222,598 US8017492B2 (en) | 2004-08-26 | 2008-08-12 | Method for fabricating semiconductor device and semiconductor device with separation along peeling layer |
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JP2004246579A JP4175650B2 (ja) | 2004-08-26 | 2004-08-26 | 半導体装置の製造方法 |
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JP4175650B2 true JP4175650B2 (ja) | 2008-11-05 |
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US (2) | US7425475B2 (ja) |
JP (1) | JP4175650B2 (ja) |
KR (1) | KR100727525B1 (ja) |
TW (1) | TWI270110B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102426177B (zh) * | 2011-09-07 | 2014-02-19 | 郑宜金 | 谷物在线水份自动测试仪 |
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US7897443B2 (en) * | 2005-04-26 | 2011-03-01 | Sharp Kabushiki Kaisha | Production method of semiconductor device and semiconductor device |
JP4451488B2 (ja) * | 2006-03-28 | 2010-04-14 | シャープ株式会社 | 半導体素子の転写方法及び半導体装置の製造方法 |
WO2009078215A1 (ja) * | 2007-12-18 | 2009-06-25 | Sharp Kabushiki Kaisha | 半導体装置の製造方法及び半導体装置 |
EP2226835A1 (en) * | 2007-12-28 | 2010-09-08 | Sharp Kabushiki Kaisha | Semiconductor device and method for manufacturing the same |
FR2935535B1 (fr) * | 2008-09-02 | 2010-12-10 | S O I Tec Silicon On Insulator Tech | Procede de detourage mixte. |
JP5781720B2 (ja) * | 2008-12-15 | 2015-09-24 | ルネサスエレクトロニクス株式会社 | 半導体装置及び半導体装置の製造方法 |
US20110278678A1 (en) * | 2009-01-29 | 2011-11-17 | Sharp Kabushiki Kaisha | Semiconductor device and method for manufacturing same |
US9209305B1 (en) * | 2014-06-06 | 2015-12-08 | Stmicroelectronics, Inc. | Backside source-drain contact for integrated circuit transistor devices and method of making same |
WO2018004653A1 (en) * | 2016-07-01 | 2018-01-04 | Intel Corporation | Backside contact resistance reduction for semiconductor devices with metallization on both sides |
US9780210B1 (en) * | 2016-08-11 | 2017-10-03 | Qualcomm Incorporated | Backside semiconductor growth |
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JPH043457A (ja) | 1990-04-19 | 1992-01-08 | Nec Corp | 能動層積層素子用配線形成方法 |
JPH07169961A (ja) | 1993-12-14 | 1995-07-04 | Ricoh Co Ltd | 半導体装置およびその製造方法 |
JPH07201773A (ja) | 1993-12-28 | 1995-08-04 | Nippon Steel Corp | 半導体装置の製造方法 |
KR0147428B1 (ko) * | 1994-12-27 | 1998-11-02 | 김주용 | 고집적 반도체 소자 및 그 제조방법 |
KR0154292B1 (ko) * | 1995-06-20 | 1998-12-01 | 김주용 | 반도체 소자의 소자분리막 형성방법 |
JPH11297972A (ja) | 1998-04-10 | 1999-10-29 | Fujitsu Ltd | 半導体装置の製造方法 |
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KR100298202B1 (ko) * | 1998-07-08 | 2001-08-07 | 박종섭 | 에스오아이 소자 및 그 제조방법 |
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JP2001028354A (ja) | 1999-05-12 | 2001-01-30 | Sony Corp | 半導体装置の製造方法 |
JP2001102523A (ja) * | 1999-09-28 | 2001-04-13 | Sony Corp | 薄膜デバイスおよびその製造方法 |
JP4776752B2 (ja) * | 2000-04-19 | 2011-09-21 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2003007816A (ja) | 2001-06-25 | 2003-01-10 | Sony Corp | 半導体素子の製造方法 |
JP2003142667A (ja) | 2001-08-24 | 2003-05-16 | Seiko Epson Corp | 半導体基板の製造方法、半導体基板、電気光学装置並びに電子機器 |
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JP4837240B2 (ja) | 2002-09-25 | 2011-12-14 | シャープ株式会社 | 半導体装置 |
JP2004241755A (ja) * | 2003-01-15 | 2004-08-26 | Renesas Technology Corp | 半導体装置 |
JP2005150686A (ja) * | 2003-10-22 | 2005-06-09 | Sharp Corp | 半導体装置およびその製造方法 |
US7179719B2 (en) * | 2004-09-28 | 2007-02-20 | Sharp Laboratories Of America, Inc. | System and method for hydrogen exfoliation |
-
2004
- 2004-08-26 JP JP2004246579A patent/JP4175650B2/ja not_active Expired - Fee Related
-
2005
- 2005-08-09 US US11/199,166 patent/US7425475B2/en not_active Expired - Fee Related
- 2005-08-10 KR KR1020050073449A patent/KR100727525B1/ko not_active IP Right Cessation
- 2005-08-26 TW TW094129366A patent/TWI270110B/zh not_active IP Right Cessation
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2008
- 2008-08-12 US US12/222,598 patent/US8017492B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102426177B (zh) * | 2011-09-07 | 2014-02-19 | 郑宜金 | 谷物在线水份自动测试仪 |
Also Published As
Publication number | Publication date |
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KR100727525B1 (ko) | 2007-06-14 |
US20060043485A1 (en) | 2006-03-02 |
TWI270110B (en) | 2007-01-01 |
TW200608459A (en) | 2006-03-01 |
US8017492B2 (en) | 2011-09-13 |
KR20060050391A (ko) | 2006-05-19 |
US7425475B2 (en) | 2008-09-16 |
US20080318390A1 (en) | 2008-12-25 |
JP2006066591A (ja) | 2006-03-09 |
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