KR20070116986A - 플래시 메모리 소자의 제조방법에 있어서 폴리-1층을정의하기 위한 비-임계 상보적 마스킹 방법 - Google Patents
플래시 메모리 소자의 제조방법에 있어서 폴리-1층을정의하기 위한 비-임계 상보적 마스킹 방법 Download PDFInfo
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- KR20070116986A KR20070116986A KR1020077025572A KR20077025572A KR20070116986A KR 20070116986 A KR20070116986 A KR 20070116986A KR 1020077025572 A KR1020077025572 A KR 1020077025572A KR 20077025572 A KR20077025572 A KR 20077025572A KR 20070116986 A KR20070116986 A KR 20070116986A
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 230000000295 complement effect Effects 0.000 title abstract description 14
- 238000004519 manufacturing process Methods 0.000 title description 16
- 230000000873 masking effect Effects 0.000 title description 3
- 230000002093 peripheral effect Effects 0.000 claims abstract description 29
- 239000004065 semiconductor Substances 0.000 claims abstract description 17
- 238000000151 deposition Methods 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims abstract description 7
- 150000004767 nitrides Chemical class 0.000 claims description 28
- 239000000758 substrate Substances 0.000 claims description 22
- 238000005530 etching Methods 0.000 claims description 11
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 11
- 229920005591 polysilicon Polymers 0.000 claims description 11
- 238000001459 lithography Methods 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
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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
- H01L21/02—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
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
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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
- H01L21/02—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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
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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
- H01L21/02—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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32139—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer using masks
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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
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
- H01L21/76229—Concurrent filling of a plurality of trenches having a different trench shape or dimension, e.g. rectangular and V-shaped trenches, wide and narrow trenches, shallow and deep trenches
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/40—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the peripheral circuit region
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/40—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the peripheral circuit region
- H10B41/42—Simultaneous manufacture of periphery and memory cells
- H10B41/43—Simultaneous manufacture of periphery and memory cells comprising only one type of peripheral transistor
- H10B41/48—Simultaneous manufacture of periphery and memory cells comprising only one type of peripheral transistor with a tunnel dielectric layer also being used as part of the peripheral transistor
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B43/00—EEPROM devices comprising charge-trapping gate insulators
- H10B43/30—EEPROM devices comprising charge-trapping gate insulators characterised by the memory core region
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Element Separation (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
Abstract
Description
Claims (7)
- 반도체 웨이퍼 상의 칩-상기 칩은 코어 메모리 영역(215)와 주변 영역(216)을 포함하며-에 폴리-1층(220)을 정의하는 방법(300)으로서,기판(213)의 상기 코어 메모리 영역(215)으로부터 돌출된 산화물(214) 메사(228)들을 형성하는 단계와;상기 기판(213) 위에 폴리-1층(220)과 상기 코어 메모리 영역(215)에 키가 큰 산화물(214) 메사(228)들을 증착하는 단계와;상기 코어 메모리(215)가 노출되게 남기면서 상기 주변 영역(216) 위에 비-임계 마스크(222)를 형성하는 단계와;상기 코어 메모리 영역(215)의 키가 큰 산화물 메사(225)들의 상부가 노출되도록 상기 반도체 웨이퍼를 연마(224)하는 단계; 및상기 비-임계 마스크(222)를 제거하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 키가 큰 산화물 메사(228)들은 600-1500 옹스트롬의 높이로 상기 기판으로부터 돌출된 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 주변 영역 위에 상기 비-임계 마스크(222)를 형성하는 단계는 리소그래피에 의해 수행되는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 주변 영역 위에 상기 비-임계 마스크(222)를 형성하는 단계는 i-선 리소그래피에 의해 수행되는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 연마(224) 단계는 화학적 기계적 평탄화(CMP; Chemical Mechanical Planarization)에 의해 수행되는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 연마(224) 단계는 상기 산화물 메사들의 상부(225)가 노출될 시 멈추는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 기판(213)의 상기 코어 메모리 영역(215)으로부터 돌출된 상기 산화물(214) 메사(228)들을 형성하는 단계는,상기 반도체 칩의 기판(213) 위에 두꺼운 질화물 배리어층(232)을 증착하는 단계;상기 질화물층(232) 및 상기 기판(213) 내로 식각하여 얕은 분리 트렌치(210)들을 형성하는 단계;산화물(214)로 상기 얕은 분리 트렌치(210)들을 충진하는 단계;상기 산화물(214)의 과다한 부분을 상기 질화물층(232)의 남은 부분의 상부로부터 제거하는 단계;상기 코어 메모리 영역(215) 상에 비-임계 마스크(227)를 증착하고, 상기 주변 영역(216)은 노출되게 남기는 단계;상기 노출된 주변 영역(216)에서의 상기 산화물(214)을 최종 폴리실리콘 두께와 대략 동일한 양(226)만큼 리세스하는 단계;상기 코어 메모리 영역 위의 제1비-임계 마스크(227)를 제거하는 단계;상기 질화물층(232)의 남은 부분을 제거하고, 이에 따라 상기 코어 메모리 영역(215)에 산화물 메사(228)들을 남기는 단계를 포함하는 것을 특징으로 하는 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/099,339 US7307002B2 (en) | 2005-04-04 | 2005-04-04 | Non-critical complementary masking method for poly-1 definition in flash memory device fabrication |
US11/099,339 | 2005-04-04 |
Publications (1)
Publication Number | Publication Date |
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KR20070116986A true KR20070116986A (ko) | 2007-12-11 |
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KR1020077025572A Ceased KR20070116986A (ko) | 2005-04-04 | 2006-04-04 | 플래시 메모리 소자의 제조방법에 있어서 폴리-1층을정의하기 위한 비-임계 상보적 마스킹 방법 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7307002B2 (ko) |
EP (1) | EP1872399B1 (ko) |
JP (1) | JP4757909B2 (ko) |
KR (1) | KR20070116986A (ko) |
CN (1) | CN101185163A (ko) |
TW (1) | TW200723439A (ko) |
WO (1) | WO2006108007A2 (ko) |
Families Citing this family (9)
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JP5880049B2 (ja) * | 2012-01-04 | 2016-03-08 | 株式会社豊田自動織機 | 充電システム |
CN105355586B (zh) * | 2014-08-21 | 2018-07-03 | 中芯国际集成电路制造(上海)有限公司 | 隔离结构的制作方法及半导体器件 |
CN105655297B (zh) * | 2016-01-26 | 2018-06-05 | 上海华虹宏力半导体制造有限公司 | 半导体器件的形成方法 |
KR102524612B1 (ko) | 2017-09-19 | 2023-04-24 | 삼성전자주식회사 | 정보 저장 소자 및 그 제조방법 |
US10777424B2 (en) * | 2018-02-27 | 2020-09-15 | Kabushiki Kaisha Toshiba | Method for manufacturing semiconductor device |
US10804281B2 (en) | 2018-09-28 | 2020-10-13 | Taiwan Semiconductor Manufacturing Co., Ltd. | Anti-dishing structure for embedded memory |
DE102018127329B4 (de) * | 2018-09-28 | 2022-10-06 | Taiwan Semiconductor Manufacturing Co. Ltd. | Anti-Dishing-Struktur für eingebetteten Speicher |
CN111029297B (zh) * | 2019-12-10 | 2022-09-23 | 上海华力微电子有限公司 | 半导体器件的形成方法 |
WO2023024012A1 (en) * | 2021-08-26 | 2023-03-02 | Yangtze Memory Technologies Co., Ltd. | Three-dimensional nand memory and fabrication method thereof |
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US4145020A (en) * | 1978-01-19 | 1979-03-20 | Kustom Fit Manufacturing Company | Retractable apparatus for supporting an element |
US6518618B1 (en) | 1999-12-03 | 2003-02-11 | Intel Corporation | Integrated memory cell and method of fabrication |
JP3578688B2 (ja) * | 1999-12-24 | 2004-10-20 | Necエレクトロニクス株式会社 | 不揮発性メモリの製造方法 |
JP2001284557A (ja) * | 2000-04-03 | 2001-10-12 | Sharp Corp | 不揮発性半導体記憶装置の製造方法 |
KR100359780B1 (ko) * | 2000-11-22 | 2002-11-04 | 주식회사 하이닉스반도체 | 반도체 소자의 제조방법 |
JP2002217388A (ja) * | 2001-01-19 | 2002-08-02 | Hitachi Ltd | 半導体装置の製造方法 |
JP2002246485A (ja) * | 2001-02-13 | 2002-08-30 | Mitsubishi Electric Corp | 不揮発性半導体記憶装置およびその製造方法 |
US6627942B2 (en) * | 2001-03-29 | 2003-09-30 | Silicon Storage Technology, Inc | Self-aligned floating gate poly for a flash E2PROM cell |
US6924220B1 (en) * | 2001-08-03 | 2005-08-02 | Advanced Micro Devices, Inc. | Self-aligned gate formation using polysilicon polish with peripheral protective layer |
KR100466195B1 (ko) * | 2002-07-18 | 2005-01-13 | 주식회사 하이닉스반도체 | 플래시 메모리 제조방법 |
US7508048B2 (en) * | 2003-01-16 | 2009-03-24 | Samsung Electronics Co., Ltd. | Methods of fabricating a semiconductor device having multi-gate insulation layers and semiconductor devices fabricated thereby |
JP2004228421A (ja) * | 2003-01-24 | 2004-08-12 | Renesas Technology Corp | 不揮発性半導体記憶装置およびその製造方法 |
JP4761745B2 (ja) * | 2004-09-21 | 2011-08-31 | ルネサスエレクトロニクス株式会社 | 半導体装置の製造方法 |
JP4242822B2 (ja) * | 2004-10-22 | 2009-03-25 | パナソニック株式会社 | 半導体装置の製造方法 |
-
2005
- 2005-04-04 US US11/099,339 patent/US7307002B2/en active Active
-
2006
- 2006-04-04 TW TW095111926A patent/TW200723439A/zh unknown
- 2006-04-04 WO PCT/US2006/012575 patent/WO2006108007A2/en active Application Filing
- 2006-04-04 EP EP06749289.2A patent/EP1872399B1/en active Active
- 2006-04-04 JP JP2008505476A patent/JP4757909B2/ja not_active Expired - Fee Related
- 2006-04-04 CN CNA2006800106349A patent/CN101185163A/zh active Pending
- 2006-04-04 KR KR1020077025572A patent/KR20070116986A/ko not_active Ceased
Also Published As
Publication number | Publication date |
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WO2006108007A3 (en) | 2006-11-30 |
JP4757909B2 (ja) | 2011-08-24 |
US20060223278A1 (en) | 2006-10-05 |
EP1872399B1 (en) | 2014-06-18 |
TW200723439A (en) | 2007-06-16 |
US7307002B2 (en) | 2007-12-11 |
EP1872399A2 (en) | 2008-01-02 |
CN101185163A (zh) | 2008-05-21 |
JP2008535282A (ja) | 2008-08-28 |
WO2006108007A2 (en) | 2006-10-12 |
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