CN111403404B - 存储结构及其制备方法 - Google Patents
存储结构及其制备方法 Download PDFInfo
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- CN111403404B CN111403404B CN202010134948.1A CN202010134948A CN111403404B CN 111403404 B CN111403404 B CN 111403404B CN 202010134948 A CN202010134948 A CN 202010134948A CN 111403404 B CN111403404 B CN 111403404B
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- 238000003860 storage Methods 0.000 title abstract description 19
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 57
- 238000005530 etching Methods 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 39
- 230000015654 memory Effects 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 28
- 230000000149 penetrating effect Effects 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 11
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 6
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 6
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 6
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 6
- 238000003475 lamination Methods 0.000 claims 2
- 239000010410 layer Substances 0.000 description 205
- 238000010586 diagram Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000004886 process control Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- -1 silicon carbide nitride Chemical class 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- H10B43/20—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
Landscapes
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
Abstract
Description
Claims (14)
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CN111403404A CN111403404A (zh) | 2020-07-10 |
CN111403404B true CN111403404B (zh) | 2021-08-13 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112185981B (zh) * | 2020-09-30 | 2022-06-14 | 长江存储科技有限责任公司 | 三维存储器结构制备方法 |
CN112802849B (zh) * | 2021-03-29 | 2023-04-21 | 长江存储科技有限责任公司 | 一种三维存储器及其制作方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109314118A (zh) * | 2018-08-21 | 2019-02-05 | 长江存储科技有限责任公司 | 具有贯穿阵列触点的三维存储器件及其形成方法 |
CN109314114A (zh) * | 2018-06-28 | 2019-02-05 | 长江存储科技有限责任公司 | 用于三维存储器件双侧布线的阶梯结构 |
CN109712977A (zh) * | 2019-01-15 | 2019-05-03 | 长江存储科技有限责任公司 | 三维存储器件及其制备方法 |
CN109844931A (zh) * | 2019-01-02 | 2019-06-04 | 长江存储科技有限责任公司 | 具有贯穿阶梯触点的三维存储设备及其形成方法 |
CN110277394A (zh) * | 2018-03-14 | 2019-09-24 | 东芝存储器株式会社 | 半导体存储装置 |
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US10128261B2 (en) * | 2010-06-30 | 2018-11-13 | Sandisk Technologies Llc | Cobalt-containing conductive layers for control gate electrodes in a memory structure |
WO2021022402A1 (en) * | 2019-08-02 | 2021-02-11 | Yangtze Memory Technologies Co., Ltd. | Three-dimensional memory devices and fabricating methods thereof |
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- 2020-03-02 CN CN202010134948.1A patent/CN111403404B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110277394A (zh) * | 2018-03-14 | 2019-09-24 | 东芝存储器株式会社 | 半导体存储装置 |
CN109314114A (zh) * | 2018-06-28 | 2019-02-05 | 长江存储科技有限责任公司 | 用于三维存储器件双侧布线的阶梯结构 |
CN109314118A (zh) * | 2018-08-21 | 2019-02-05 | 长江存储科技有限责任公司 | 具有贯穿阵列触点的三维存储器件及其形成方法 |
CN109844931A (zh) * | 2019-01-02 | 2019-06-04 | 长江存储科技有限责任公司 | 具有贯穿阶梯触点的三维存储设备及其形成方法 |
CN109712977A (zh) * | 2019-01-15 | 2019-05-03 | 长江存储科技有限责任公司 | 三维存储器件及其制备方法 |
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Inventor after: Xu Wei Inventor after: Yang Xingmei Inventor after: Wang Jianlu Inventor after: Wu Jijun Inventor after: Huang Pan Inventor after: Zhou Wenbin Inventor after: Huo Zongliang Inventor before: Xu Wei Inventor before: Yang Xingmei Inventor before: Wang Jianlu Inventor before: Wu Jijun Inventor before: Huang Pan Inventor before: Zhou Wenbin |
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