JP6987876B2 - メモリデバイスおよび方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 description 68
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- 229910052581 Si3N4 Inorganic materials 0.000 description 13
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 239000007769 metal material Substances 0.000 description 6
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- 229910052732 germanium Inorganic materials 0.000 description 5
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 5
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 5
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- 229910001218 Gallium arsenide Inorganic materials 0.000 description 3
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 3
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- 238000000059 patterning Methods 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- 229910002601 GaN Inorganic materials 0.000 description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
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- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000004549 pulsed laser deposition Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005689 Fowler Nordheim tunneling Effects 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- 229910018503 SF6 Inorganic materials 0.000 description 1
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- 229910045601 alloy Inorganic materials 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
- 238000000137 annealing Methods 0.000 description 1
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- -1 for example Substances 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
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- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052914 metal silicate Inorganic materials 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
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- 239000012811 non-conductive material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002902 organometallic compounds 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
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 229920005591 polysilicon Polymers 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
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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
- H10B43/20—EEPROM devices comprising charge-trapping gate insulators characterised by three-dimensional arrangements, e.g. with cells on different height levels
-
- 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
- H10B43/50—EEPROM devices comprising charge-trapping gate insulators characterised by the boundary region between the core and peripheral circuit regions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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 potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—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 potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/06—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 potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
- H01L27/0688—Integrated circuits having a three-dimensional layout
-
- 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
-
- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
-
- 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
- H10B43/10—EEPROM devices comprising charge-trapping gate insulators characterised by the top-view layout
-
- 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
- H10B43/20—EEPROM devices comprising charge-trapping gate insulators characterised by three-dimensional arrangements, e.g. with cells on different height levels
- H10B43/23—EEPROM devices comprising charge-trapping gate insulators characterised by three-dimensional arrangements, e.g. with cells on different height levels with source and drain on different levels, e.g. with sloping channels
- H10B43/27—EEPROM devices comprising charge-trapping gate insulators characterised by three-dimensional arrangements, e.g. with cells on different height levels with source and drain on different levels, e.g. with sloping channels the channels comprising vertical portions, e.g. U-shaped channels
-
- 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
- H10B43/35—EEPROM devices comprising charge-trapping gate insulators characterised by the memory core region with cell select transistors, e.g. NAND
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
- Thin Film Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Description
Claims (11)
- メモリデバイスであって、
基板と、
前記基板の上で第1の方向に沿って延伸する複数のワード線であって、前記複数のワード線は、第1の領域内で階段構造を形成する複数のワード線と、
第2の領域内に形成され、前記複数のワード線を貫通する複数のチャネルであって、前記第2の領域は、領域境界において前記第1の領域に隣接する、複数のチャネルと、
前記第1の領域および前記第2の領域内に、前記第1の方向に沿って形成されている絶縁スリットと
を備え、
前記絶縁スリットは、前記第1の領域内に形成され、前記第1の領域を分割する第1の絶縁スリット、および、前記第2の領域内に形成され、前記第2の領域を分割する第2の絶縁スリットを含み、
第2の方向において測定される前記第1の絶縁スリットの第1の幅は、前記第2の方向において測定される前記第2の絶縁スリットの第2の幅よりも大きく、
前記第1の幅は、前記第1の方向に沿って、前記領域境界から離れるに従って増大する、
メモリデバイス。 - 前記第1の方向は、前記基板の上面に平行である、
請求項1に記載のメモリデバイス。 - 前記第2の方向は、前記第1の方向に垂直である、
請求項1に記載のメモリデバイス。 - 前記第1の絶縁スリットは、湾曲端部構造を含む、
請求項1に記載のメモリデバイス。 - 前記湾曲端部構造は、弧状構造を含む、
請求項4に記載のメモリデバイス。 - 前記メモリデバイスは、前記第1の領域内に形成された複数のコンタクト構造をさらに備え、前記複数のコンタクト構造の各コンタクト構造は、前記複数のワード線のうちの少なくとも1つのワード線に電気的に接続され、前記領域境界から最も遠い、前記複数のコンタクト構造のコンタクト構造、および前記湾曲端部構造のそれぞれの部分は、前記第1の方向において約0.5μm〜約2μm離れている、
請求項4に記載のメモリデバイス。 - メモリデバイスであって、
第1の方向に沿って延伸するワード線階段領域と、
領域境界において前記ワード線階段領域に隣接するアレイ領域と、
複数のスリット構造と
を備え、
各スリット構造は、それぞれ前記ワード線階段領域内に形成され、前記ワード線階段領域を分割する第1のスリット構造、および、前記アレイ領域内に形成され、前記アレイ領域を分割する第2のスリット構造を含み、
前記第1のスリット構造の幅は、前記第2のスリット構造の幅より大きく、
前記第1のスリット構造の幅は、前記第1の方向に沿って漸進的に増大する、
メモリデバイス。 - 前記複数のスリット構造は、前記第1の方向に沿って延在し、前記幅は、前記第1の方向に垂直な第2の方向において測定される、
請求項7に記載のメモリデバイス。 - 前記複数のスリット構造のスリット構造は、湾曲端部構造を含む、
請求項7に記載のメモリデバイス。 - 前記湾曲端部構造は、弧状構造を含む、
請求項9に記載のメモリデバイス。 - メモリデバイスを形成するための方法であって、
第1の方向に沿って延伸するワード線階段領域および領域境界において前記ワード線階段領域に隣接するアレイ領域を備える基板を提供することと、
前記ワード線階段領域内に前記ワード線階段領域を分割するワード線階段スリットを形成するために、前記基板をエッチングすることと、
前記アレイ領域内に前記アレイ領域を分割するアレイスリットを形成するために、前記基板をエッチングすることと
を含み、
前記ワード線階段スリットの幅は、前記アレイスリットの幅よりも大きく、
前記ワード線階段スリットの幅は、前記第1の方向に沿って漸進的に増大する、
方法。
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CN (3) | CN106876391B (ja) |
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CN106876391B (zh) | 2017-03-07 | 2018-11-13 | 长江存储科技有限责任公司 | 一种沟槽版图结构、半导体器件及其制作方法 |
KR102369654B1 (ko) | 2017-06-21 | 2022-03-03 | 삼성전자주식회사 | 반도체 장치 |
US10998331B2 (en) * | 2018-06-27 | 2021-05-04 | Sandisk Technologies Llc | Three-dimensional inverse flat NAND memory device containing partially discrete charge storage elements and methods of making the same |
JP2020047819A (ja) * | 2018-09-20 | 2020-03-26 | キオクシア株式会社 | 半導体記憶装置 |
CN112002696B (zh) * | 2018-10-26 | 2023-08-04 | 长江存储科技有限责任公司 | 3dnand存储器件的结构及其形成方法 |
KR20240148938A (ko) * | 2018-12-07 | 2024-10-11 | 양쯔 메모리 테크놀로지스 씨오., 엘티디. | 새로운 3d nand 메모리 소자 및 그 형성 방법 |
KR102679480B1 (ko) * | 2018-12-24 | 2024-07-01 | 삼성전자주식회사 | 워드라인 컷을 포함하는 반도체 장치 |
US10854616B2 (en) * | 2019-04-22 | 2020-12-01 | Macronix International Co., Ltd. | Semiconductor structure and method forming the same |
JP2021048302A (ja) * | 2019-09-19 | 2021-03-25 | キオクシア株式会社 | 半導体記憶装置 |
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