JP6985212B2 - 半導体メモリ素子及びその製造方法 - Google Patents
半導体メモリ素子及びその製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 339
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- 239000012535 impurity Substances 0.000 claims description 58
- 238000003860 storage Methods 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 26
- 239000000126 substance Substances 0.000 claims description 17
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 15
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- 239000013256 coordination polymer Substances 0.000 description 45
- 239000011229 interlayer Substances 0.000 description 43
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 34
- 229910052710 silicon Inorganic materials 0.000 description 34
- 239000010703 silicon Substances 0.000 description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 25
- 229910052814 silicon oxide Inorganic materials 0.000 description 25
- 239000008186 active pharmaceutical agent Substances 0.000 description 23
- 150000004767 nitrides Chemical class 0.000 description 23
- 238000009413 insulation Methods 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 14
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 12
- 230000000903 blocking effect Effects 0.000 description 11
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- 230000000149 penetrating effect Effects 0.000 description 9
- 239000012528 membrane Substances 0.000 description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 7
- 229910052715 tantalum Inorganic materials 0.000 description 7
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 229910052719 titanium Inorganic materials 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 7
- 229910052721 tungsten Inorganic materials 0.000 description 7
- 239000010937 tungsten Substances 0.000 description 7
- 239000012212 insulator Substances 0.000 description 6
- 230000010354 integration Effects 0.000 description 6
- 239000007769 metal material Substances 0.000 description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 6
- 238000011065 in-situ storage Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052732 germanium Inorganic materials 0.000 description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 4
- 229910052723 transition metal Inorganic materials 0.000 description 4
- 150000003624 transition metals Chemical class 0.000 description 4
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 3
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 3
- 229910000449 hafnium oxide Inorganic materials 0.000 description 3
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- 229910021332 silicide Inorganic materials 0.000 description 3
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
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- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
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- 239000010409 thin film Substances 0.000 description 2
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 2
- 229910021342 tungsten silicide Inorganic materials 0.000 description 2
- 238000001947 vapour-phase growth Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 238000001193 catalytic steam reforming Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000011370 conductive nanoparticle Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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- 238000000059 patterning Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
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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
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76898—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics formed through a semiconductor substrate
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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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D88/00—Three-dimensional [3D] integrated devices
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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
-
- 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
- H01L23/538—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
- H01L23/5384—Conductive vias through the substrate with or without pins, e.g. buried coaxial conductors
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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
- H10B41/23—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates 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
- H10B41/27—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates 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
- H10B43/40—EEPROM devices comprising charge-trapping gate insulators 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
- H10B43/50—EEPROM devices comprising charge-trapping gate insulators characterised by the boundary region between the core and peripheral circuit regions
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Description
102 素子分離膜
103 残留基板
111 バッファ層
113 エッチング停止膜
120 絶縁層
128 パッドパターン
139 埋め込み絶縁層
140 共通ソースライン
141 分離トレンチ
145 分離パターン
164 ビットラインコンタクト
165 周辺コンタクト
191 上部コンタクト
193 保護層
BL ビットライン
BX 埋め込み絶縁層
CP チャネル半導体層
CR セルアレイ領域
DS 情報格納層
ER 連結領域
GP ゲート電極
IL1、IL2 層間絶縁膜
ML 上部配線
PG ゲート電極
PL 周辺配線
PR 周辺回路領域
PT 周辺トランジスタ
SK 連結導電パターン
ST 電極構造体
UT 周辺活性層
VS 垂直構造体
Claims (25)
- セルアレイ領域及び周辺回路領域を含む半導体メモリ素子において、
前記セルアレイ領域は、
ボディー導電層上に順に積層された複数の電極を含む電極構造体と、
前記電極構造体を貫通して前記ボディー導電層に連結される垂直構造体と、を含み、
前記周辺回路領域は、前記ボディー導電層上の残留基板及び前記残留基板を貫通して前記ボディー導電層に連結される連結導電パターンを含み、
前記ボディー導電層は、多結晶半導体層を含む、半導体メモリ素子。 - 前記連結導電パターンは、前記ボディー導電層の上面と接し、
前記ボディー導電層の上面と接する前記連結導電パターンの下部幅は、前記連結導電パターンの上部幅より小さい、請求項1に記載の半導体メモリ素子。 - 前記連結導電パターンの下面は、前記ボディー導電層の上面と実質的に同一なレベルである請求項1又は2に記載の半導体メモリ素子。
- 前記残留基板は、埋め込み絶縁層及び前記埋め込み絶縁層上の周辺活性層を含み、
前記連結導電パターンは、前記埋め込み絶縁層及び前記周辺活性層を貫通する、請求項1乃至3のいずれか一項に記載の半導体メモリ素子。 - 前記周辺活性層は、実質的に単結晶である、請求項4に記載の半導体メモリ素子。
- 前記連結導電パターンの上面は、前記残留基板の上面より高いレベルである、請求項1乃至5のいずれか一項に記載の半導体メモリ素子。
- 前記周辺回路領域は、その上に形成される周辺ゲート電極をさらに含み、
前記連結導電パターンの上面は、前記周辺ゲート電極の上面より高いレベルである、請求項6に記載の半導体メモリ素子。 - 前記連結導電パターンの側壁と前記残留基板との間に絶縁スペーサーをさらに含む請求項1乃至7のいずれか一項に記載の半導体メモリ素子。
- 前記ボディー導電層を貫通して前記連結導電パターンに連結される貫通電極をさらに含む請求項1乃至8のいずれか一項に記載の半導体メモリ素子。
- 前記連結導電パターンは、前記ボディー導電層と同一な導電型の不純物を含む、請求項1乃至9のいずれか一項に記載の半導体メモリ素子。
- 前記ボディー導電層の厚さは、前記残留基板の厚さより薄い、請求項1乃至10のいずれか一項に記載の半導体メモリ素子。
- 前記ボディー導電層は、ポリシリコンを含む、請求項1乃至11のいずれか一項に記載の半導体メモリ素子。
- 前記垂直構造体の各々は、チャネル半導体層及び情報格納層を含み、
前記ボディー導電層は、前記チャネル半導体層と連結される、請求項1乃至12のいずれか一項に記載の半導体メモリ素子。 - 前記チャネル半導体層の下面及び前記情報格納層の下面は、実質的に同一レベルに配置される、請求項13に記載の半導体メモリ素子。
- 前記連結導電パターンの下面は、前記チャネル半導体層の下面と実質的に同一レベルに配置される、請求項14に記載の半導体メモリ素子。
- セルアレイ領域及び周辺回路領域を含む半導体メモリ素子において、
前記セルアレイ領域は、
ボディー導電層上に順に積層された複数の電極を含む電極構造体と、
前記電極構造体を貫通して前記ボディー導電層に連結される垂直構造体と、を含み、
前記周辺回路領域は、前記ボディー導電層上の残留基板及び前記残留基板を貫通して前記ボディー導電層に連結される連結導電パターンを含み、
前記ボディー導電層は、多結晶半導体層を含み、
前記連結導電パターンの下面は、前記垂直構造体の下面と実質的に同一レベルである、半導体メモリ素子。 - 前記残留基板は、埋め込み絶縁層及び前記埋め込み絶縁層上に提供される周辺活性層を含み、
前記連結導電パターンは、前記周辺活性層を貫通する、請求項16に記載の半導体メモリ素子。 - 前記連結導電パターンの側壁は、前記周辺活性層と連結される、請求項17に記載の半導体メモリ素子。
- 前記連結導電パターンの下面は、前記ボディー導電層の上面と電気的及び物理的に連結される、請求項16に記載の半導体メモリ素子。
- 前記連結導電パターンは、前記ボディー導電層と同一な導電型の不純物を含む、請求項16乃至19のいずれか一項に記載の半導体メモリ素子。
- 基板を準備することと、前記基板は、セルアレイ領域及び周辺回路領域を含み、
前記周辺回路領域の基板の上部に埋め込まれる連結導電パターンを形成することと、
前記セルアレイ領域の基板上部を除去することと、
前記基板と連結される垂直構造体を形成することと、
前記基板の下部を除去して前記垂直構造体の下部及び前記連結導電パターンの下部を露出することと、
前記垂直構造体の下部及び前記連結導電パターンの下部と共通的に連結されるボディー導電層を形成することと、を含む半導体メモリ素子の製造方法。 - 前記連結導電パターンは、前記基板の下部を除去する前に形成される、請求項21に記載の半導体メモリ素子の製造方法。
- 前記基板の下部を除去することは、化学機械研磨を含む、請求項21又は22に記載の半導体メモリ素子の製造方法。
- 前記基板の下部を除去する間に前記連結導電パターンの下部が共に除去される請求項21乃至23のいずれか一項に記載の半導体メモリ素子の製造方法。
- 前記垂直構造体の各々は、情報格納層及びチャネル半導体層を含み、
前記基板の下部を除去する間に前記情報格納層の一部が共に除去されて前記チャネル半導体層が露出される、請求項21乃至24のいずれか一項に記載の半導体メモリ素子の製造方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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KR10-2017-0073390 | 2017-06-12 | ||
KR1020170073390A KR20180135526A (ko) | 2017-06-12 | 2017-06-12 | 반도체 메모리 소자 및 그 제조 방법 |
KR10-2017-0166233 | 2017-12-05 | ||
KR1020170166233A KR102533149B1 (ko) | 2017-12-05 | 2017-12-05 | 반도체 메모리 소자 및 그 제조 방법 |
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JP2019004147A JP2019004147A (ja) | 2019-01-10 |
JP6985212B2 true JP6985212B2 (ja) | 2021-12-22 |
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US (2) | US10692881B2 (ja) |
JP (1) | JP6985212B2 (ja) |
CN (1) | CN109037210B (ja) |
DE (1) | DE102018110017B4 (ja) |
SG (1) | SG10201803464XA (ja) |
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US11637122B2 (en) * | 2018-05-10 | 2023-04-25 | SK Hynix Inc. | Semiconductor device and manufacturing method of semiconductor device |
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