JP5528430B2 - 酸化層の形成方法 - Google Patents
酸化層の形成方法 Download PDFInfo
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- JP5528430B2 JP5528430B2 JP2011506732A JP2011506732A JP5528430B2 JP 5528430 B2 JP5528430 B2 JP 5528430B2 JP 2011506732 A JP2011506732 A JP 2011506732A JP 2011506732 A JP2011506732 A JP 2011506732A JP 5528430 B2 JP5528430 B2 JP 5528430B2
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- 238000000034 method Methods 0.000 title claims description 109
- 230000015572 biosynthetic process Effects 0.000 title description 7
- 239000000758 substrate Substances 0.000 claims description 111
- 239000008151 electrolyte solution Substances 0.000 claims description 37
- 239000004065 semiconductor Substances 0.000 claims description 35
- 230000002378 acidificating effect Effects 0.000 claims description 16
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- 238000007743 anodising Methods 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 238000005530 etching Methods 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 235000006408 oxalic acid Nutrition 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 115
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 34
- 229940021013 electrolyte solution Drugs 0.000 description 30
- 229910052814 silicon oxide Inorganic materials 0.000 description 30
- 238000002048 anodisation reaction Methods 0.000 description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 21
- 229910052710 silicon Inorganic materials 0.000 description 21
- 239000010703 silicon Substances 0.000 description 21
- 239000010408 film Substances 0.000 description 13
- 230000003647 oxidation Effects 0.000 description 13
- 238000007254 oxidation reaction Methods 0.000 description 13
- 235000012431 wafers Nutrition 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 241000237503 Pectinidae Species 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 235000020637 scallop Nutrition 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- H01L21/30—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
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/3165—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation
- H01L21/31654—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation of semiconductor materials, e.g. the body itself
- H01L21/3167—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation of semiconductor materials, e.g. the body itself of anodic oxidation
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/0223—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate
- H01L21/02233—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer
- H01L21/02236—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor
- H01L21/02238—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor silicon in uncombined form, i.e. pure silicon
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/02258—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by anodic treatment, e.g. anodic oxidation
-
- 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
- H01L21/30—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
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/3165—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation
- H01L21/31654—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation of semiconductor materials, e.g. the body itself
- H01L21/3167—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation of semiconductor materials, e.g. the body itself of anodic oxidation
- H01L21/31675—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation of semiconductor materials, e.g. the body itself of anodic oxidation of silicon
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Formation Of Insulating Films (AREA)
Description
半導体基板を得る工程と、
酸性電解質溶液中で基板を陽極酸化することにより、基板上に酸化層を形成する工程と、を含む。
基板を電解質溶液中に浸責する工程と、
電解質溶液中のカソードと、基板上または基板により形成されたアノードとの間に電位を与え、これにより基板を陽極酸化する工程と、で行われる。基板が3次元構造を含む場合、この構造は基板と一緒に陽極酸化される。電位を与えることにより、電池を通って電流が流れる。陽極層が成長すると、プロセスを行い続けるために、(一定の電流では)より大きな電位が必要となる。所定の電圧に達した場合、所定の酸化物膜厚が達成される。電圧が一定に維持された場合、残りの陽極酸化時間の間に電流が指数関数的に減少し、その間に陽極酸化層中の欠陥が治癒されて酸化物が緻密化される。
最初に、所定の時間、酸化層を形成するために、固定された電流密度が、基板を通って得られ、
所定の時間が経過した後に、固定された電位が、酸化層を治癒するために得られる。
平坦に横たわり、3次元構造を含む基板を得る工程であって、3次元構造は、例えばホールやバイアのような、基板の面に対して実質的に垂直な少なくとも1つの面を含む工程と、
酸性電解質溶液中で基板を陽極酸化することにより3次元構造の上または中に酸化層を形成する工程と、を含む。
Claims (6)
- 半導体基板の上に酸化層を形成する方法であって、
分離領域を有するデバイス基板、多層の相互結合構造、およびデバイス基板と多層の相互結合構造との間の絶縁層を含む半導体基板を得る工程と、
デバイス基板の裏側から絶縁層まで、デバイス基板中に含まれる分離領域を通って少なくとも1つのホールをエッチングする工程と、
酸性の電解質溶液中で基板を陽極酸化することにより、基板の上に酸化層を形成する工程と、を含み、
基板の上に酸化層を形成する工程は、
電解質溶液中に基板を浸責する工程と、
電解質溶液中に配置されたカソードと、デバイス基板からなるアノードとの間に10Vと400Vの間の電位を与え、これにより基板を陽極酸化する工程と、で行われ、
陽極酸化する工程は、
最初に、所定の時間、固定された電流密度が、基板を通って得られるように電位を与える工程と、
所定の時間が経過した後に、10Vと400Vの間の固定された電位を与える工程との、2工程のプロセスで行われる方法。 - 酸性の電解質溶液中で基板を陽極酸化する工程は、クエン酸、酢酸、シュウ酸、硫酸、リン酸、硝酸、またはそれらの組み合わせを含む電解質溶液中に、基板を浸責する工程を含む請求項1に記載の方法。
- 酸性の電解質溶液中で基板を陽極酸化する工程は、0%(含有せず)と20%の間の酸濃度を有する電解質溶液中に基板を浸責する工程を含む請求項1に記載の方法。
- 基板の上に酸化層を形成する工程は、少なくとも1つのホールの側壁に、酸化層を形成する工程を含む請求項1に記載の方法。
- 電位を与える工程は、時間の関数として基板を通る電流密度が変化するように、電位を与えて行われる請求項1に記載の方法。
- 半導体デバイスの製造プロセスにおける、請求項1〜5のいずれかに記載の方法の使用。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5009208P | 2008-05-02 | 2008-05-02 | |
US61/050,092 | 2008-05-02 | ||
PCT/EP2009/055312 WO2009133196A1 (en) | 2008-05-02 | 2009-04-30 | Method for providing oxide layers |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011523202A JP2011523202A (ja) | 2011-08-04 |
JP2011523202A5 JP2011523202A5 (ja) | 2012-02-09 |
JP5528430B2 true JP5528430B2 (ja) | 2014-06-25 |
Family
ID=40941299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2011506732A Expired - Fee Related JP5528430B2 (ja) | 2008-05-02 | 2009-04-30 | 酸化層の形成方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8822330B2 (ja) |
EP (1) | EP2272087B1 (ja) |
JP (1) | JP5528430B2 (ja) |
WO (1) | WO2009133196A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US8912522B2 (en) * | 2009-08-26 | 2014-12-16 | University Of Maryland | Nanodevice arrays for electrical energy storage, capture and management and method for their formation |
US10032569B2 (en) * | 2009-08-26 | 2018-07-24 | University Of Maryland, College Park | Nanodevice arrays for electrical energy storage, capture and management and method for their formation |
US9219032B2 (en) * | 2012-07-09 | 2015-12-22 | Qualcomm Incorporated | Integrating through substrate vias from wafer backside layers of integrated circuits |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4005452A (en) * | 1974-11-15 | 1977-01-25 | International Telephone And Telegraph Corporation | Method for providing electrical isolating material in selected regions of a semiconductive material and the product produced thereby |
US4849370A (en) * | 1987-12-21 | 1989-07-18 | Texas Instruments Incorporated | Anodizable strain layer for SOI semiconductor structures |
JP2938152B2 (ja) * | 1990-07-06 | 1999-08-23 | 株式会社東芝 | 半導体装置およびその製造方法 |
JPH06350064A (ja) * | 1993-06-07 | 1994-12-22 | Canon Inc | 半導体装置及びその実装方法 |
US5511428A (en) * | 1994-06-10 | 1996-04-30 | Massachusetts Institute Of Technology | Backside contact of sensor microstructures |
JP3893645B2 (ja) * | 1996-03-18 | 2007-03-14 | ソニー株式会社 | 薄膜半導体装置およびicカードの製造方法 |
JP2815001B2 (ja) * | 1996-10-21 | 1998-10-27 | 日本電気株式会社 | 薄膜soi基板の製造方法 |
US5736454A (en) * | 1997-03-20 | 1998-04-07 | National Science Council | Method for making a silicon dioxide layer on a silicon substrate by pure water anodization followed by rapid thermal densification |
JPH11126906A (ja) * | 1997-10-22 | 1999-05-11 | Semiconductor Energy Lab Co Ltd | 陽極酸化方法 |
US6352893B1 (en) * | 1999-06-03 | 2002-03-05 | Infineon Technologies Ag | Low temperature self-aligned collar formation |
DE10147894B4 (de) * | 2001-07-31 | 2007-08-23 | Infineon Technologies Ag | Verfahren zum Füllen von Gräben in integrierten Halbleiterschaltungen |
DE10138981B4 (de) * | 2001-08-08 | 2005-09-08 | Infineon Technologies Ag | Verfahren zur Bildung von Siliziumoxid durch elektrochemische Oxidation eines Halbleiter-Substrats mit Vertiefungen |
JP4717290B2 (ja) * | 2001-09-12 | 2011-07-06 | 株式会社フジクラ | 貫通電極の製造方法 |
WO2003096401A1 (fr) * | 2002-05-14 | 2003-11-20 | Matsushita Electric Works, Ltd. | Procede d'oxydation electrochimique |
JP4035066B2 (ja) * | 2003-02-04 | 2008-01-16 | 株式会社ルネサステクノロジ | 半導体装置の製造方法 |
JP4199206B2 (ja) * | 2005-03-18 | 2008-12-17 | シャープ株式会社 | 半導体装置の製造方法 |
-
2009
- 2009-04-30 WO PCT/EP2009/055312 patent/WO2009133196A1/en active Application Filing
- 2009-04-30 JP JP2011506732A patent/JP5528430B2/ja not_active Expired - Fee Related
- 2009-04-30 EP EP09738240.2A patent/EP2272087B1/en not_active Not-in-force
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2010
- 2010-10-18 US US12/906,766 patent/US8822330B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2009133196A1 (en) | 2009-11-05 |
US20110086507A1 (en) | 2011-04-14 |
US8822330B2 (en) | 2014-09-02 |
JP2011523202A (ja) | 2011-08-04 |
EP2272087B1 (en) | 2018-04-04 |
EP2272087A1 (en) | 2011-01-12 |
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