JP6948892B2 - 半導体記憶装置 - Google Patents
半導体記憶装置 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 45
- 229910052710 silicon Inorganic materials 0.000 claims description 39
- 239000010703 silicon Substances 0.000 claims description 39
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 52
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 38
- 239000000758 substrate Substances 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 229910052814 silicon oxide Inorganic materials 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 7
- 229920005591 polysilicon Polymers 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 6
- 229910052721 tungsten Inorganic materials 0.000 description 6
- 239000010937 tungsten Substances 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- -1 for example Substances 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 238000005530 etching Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010893 electron trap Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 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
- 238000001039 wet etching Methods 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
- H10B43/10—EEPROM devices comprising charge-trapping gate insulators characterised by the top-view layout
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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
- H10B41/20—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by three-dimensional arrangements, e.g. with cells on different height levels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/528—Geometry or layout of the interconnection structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/5228—Resistive arrangements or effects of, or between, wiring layers
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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
-
- 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
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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
- 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
-
- 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
- H10B43/40—EEPROM devices comprising charge-trapping gate insulators characterised by the peripheral circuit region
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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- Computer Hardware Design (AREA)
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- Power Engineering (AREA)
- Geometry (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
Description
図1は、本実施形態に係る半導体記憶装置を示す断面図である。
図2は、図1に示すA−A’線による断面図である。
図3は、図1の領域Bを示す一部拡大断面図である。
上述の如く、配線層15は絶縁板11aと絶縁板11bとの間に配置されている。配線層15は、絶縁部材17によって複数の部分に区画されている。すなわち、配線層15においては、ハイウェイ部15a及び15b、ブリッジ部15c及び15d、フィンガー部15e及び15fが設けられている。
図4は、本実施形態に係る半導体記憶装置の製造方法を示す断面図である。
図5は、図4に示すA−A’線による断面図である。
図6〜図8は、本実施形態に係る半導体記憶装置の製造方法を示す断面図である。
図9は、図8に示すA−A’線による断面図である。
本実施形態に係る半導体記憶装置1においては、隣り合う2枚の絶縁板11間に配置された1つの積層体13内に、Y方向に沿って複数本の柱状部材18が配列されている。これにより、1つの積層体13内に、Y方向に沿って複数個、例えば、4個のメモリセルトランジスタ36が配列される。このため、半導体記憶装置1は、メモリセルトランジスタ36の集積密度が高い。
Claims (5)
- 第1方向及び前記第1方向に対して交差した第2方向を含む平面に沿って拡がり、前記平面に対して交差した第3方向において相互に離隔した第1絶縁板及び第2絶縁板と、
前記第1絶縁板と前記第2絶縁板との間に設けられ、複数の絶縁層と複数の配線層が前記第1方向に沿って交互に積層された第1積層体と、
前記第1絶縁板と前記第2絶縁板との間に設けられ、複数の絶縁層と複数の配線層が前記第1方向に沿って交互に積層された第2積層体と、
前記第1積層体内に設けられ、前記第1方向において前記第1積層体を貫通する第1絶縁部材と、
前記第2積層体内に設けられ、前記第1方向において前記第2積層体を貫通する第2絶縁部材と、
前記第1積層体内に設けられ、前記第1方向に延びる第1半導体部材と、
前記第2積層体内に設けられ、前記第1方向に延びる第2半導体部材と、
前記配線層と前記第1半導体部材との間に設けられた電荷蓄積部材と、
を備え、
各前記配線層は、
前記第1絶縁板に接し、前記第2方向に延びる第1配線部と、
前記第2絶縁板に接し、前記第2方向に延びる第2配線部と、
前記第1配線部に接し、前記第1絶縁部材と前記第2絶縁部材との間に設けられ、前記第3方向に延びる第3配線部と、
前記第2配線部に接した第4配線部と、
前記第1絶縁板及び前記第2絶縁板から離隔し、前記第2方向に延び、前記第1積層体及び前記第2積層体に含まれ、前記第3配線部を介して前記第1配線部に接続され、前記第1絶縁部材及び前記第2絶縁部材によって前記第2配線部から絶縁された第5配線部と、
前記第1絶縁板及び前記第2絶縁板から離隔し、前記第2方向に延び、前記第4配線部を介して前記第2配線部に接続され、前記第1絶縁部材及び前記第2絶縁部材によって前記第1配線部から絶縁された第6配線部と、
を有し、
前記第1半導体部材は、前記第5配線部と前記第6配線部との間に配置された半導体記憶装置。 - 前記第1配線部及び前記第2配線部は金属を含み、
前記第5配線部及び前記第6配線部はシリコンを含む請求項1記載の半導体記憶装置。 - 前記第1配線部及び前記第2配線部の抵抗率は、前記第5配線部及び前記第6配線部の抵抗率よりも低い請求項1または2に記載の半導体記憶装置。
- 前記各配線層は、複数の前記第5配線部及び複数の前記第6配線部を有し、
前記複数の第5配線部と前記複数の第6配線部は、前記第3方向において交互に配列されている請求項1〜3のいずれか1つに記載の半導体記憶装置。 - 前記第1方向から見て、前記複数の配線層における前記第1〜第6配線部を含む配線パターンは相互に重なる請求項1〜4のいずれか1つに記載の半導体記憶装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2017178712A JP6948892B2 (ja) | 2017-09-19 | 2017-09-19 | 半導体記憶装置 |
TW106146173A TWI676271B (zh) | 2017-09-19 | 2017-12-28 | 半導體記憶裝置 |
CN201810076244.6A CN109524413A (zh) | 2017-09-19 | 2018-01-26 | 半导体存储装置 |
US15/923,488 US10236254B1 (en) | 2017-09-19 | 2018-03-16 | Semiconductor memory device |
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JP6948892B2 true JP6948892B2 (ja) | 2021-10-13 |
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JP (1) | JP6948892B2 (ja) |
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JP2021048188A (ja) | 2019-09-17 | 2021-03-25 | キオクシア株式会社 | 半導体記憶装置 |
EP4078677A4 (en) * | 2019-12-18 | 2023-09-27 | Micron Technology, Inc. | VERTICAL 3D MEMORY DEVICE AND MANUFACTURING METHOD THEREFOR |
US11296024B2 (en) * | 2020-05-15 | 2022-04-05 | Qualcomm Incorporated | Nested interconnect structure in concentric arrangement for improved package architecture |
JP2021182457A (ja) | 2020-05-18 | 2021-11-25 | キオクシア株式会社 | 半導体記憶装置 |
JP2022048039A (ja) | 2020-09-14 | 2022-03-25 | キオクシア株式会社 | 半導体記憶装置 |
JP2022048489A (ja) | 2020-09-15 | 2022-03-28 | キオクシア株式会社 | 半導体記憶装置 |
JP2022050069A (ja) | 2020-09-17 | 2022-03-30 | キオクシア株式会社 | 半導体記憶装置 |
JP2022147848A (ja) | 2021-03-23 | 2022-10-06 | キオクシア株式会社 | 半導体記憶装置 |
JP2023001828A (ja) | 2021-06-21 | 2023-01-06 | キオクシア株式会社 | 半導体記憶装置 |
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JPH07142597A (ja) * | 1993-11-12 | 1995-06-02 | Mitsubishi Electric Corp | 半導体記憶装置およびその製造方法 |
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TWI611560B (zh) | 2015-07-06 | 2018-01-11 | Toshiba Memory Corp | 半導體記憶裝置及其製造方法 |
TWI582962B (zh) | 2015-07-06 | 2017-05-11 | Toshiba Kk | Semiconductor memory device and manufacturing method thereof |
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- 2017-12-28 TW TW106146173A patent/TWI676271B/zh not_active IP Right Cessation
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- 2018-01-26 CN CN201810076244.6A patent/CN109524413A/zh active Pending
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US10236254B1 (en) | 2019-03-19 |
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JP2019054182A (ja) | 2019-04-04 |
CN109524413A (zh) | 2019-03-26 |
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