JP7502122B2 - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
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- JP7502122B2 JP7502122B2 JP2020151455A JP2020151455A JP7502122B2 JP 7502122 B2 JP7502122 B2 JP 7502122B2 JP 2020151455 A JP2020151455 A JP 2020151455A JP 2020151455 A JP2020151455 A JP 2020151455A JP 7502122 B2 JP7502122 B2 JP 7502122B2
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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
- H10B41/30—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region
- H10B41/35—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region with a cell select transistor, e.g. NAND
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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
- H01L21/22—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities
- H01L21/225—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities using diffusion into or out of a solid from or into a solid phase, e.g. a doped oxide layer
- H01L21/2251—Diffusion into or out of group IV semiconductors
- H01L21/2254—Diffusion into or out of group IV semiconductors from or through or into an applied layer, e.g. photoresist, nitrides
- H01L21/2255—Diffusion into or out of group IV semiconductors from or through or into an applied layer, e.g. photoresist, nitrides the applied layer comprising oxides only, e.g. P2O5, PSG, H3BO3, doped oxides
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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
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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
- H10B41/50—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the boundary region between the core region and 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
- 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
- H10B43/50—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)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
- Electrodes Of Semiconductors (AREA)
Description
図1は、第1実施形態に係る半導体装置の要部の構造を示す斜視図である。図1に示す半導体装置1は、基板10と、回路層20と、配線層30と、積層体40と、複数の柱状部50と、を備える。以下の説明では、基板10に平行な方向であって相互に直交する2方向をX方向およびY方向とする。また、基板10に垂直な方向であって、X方向およびY方向に対して直交する方向をZ方向とする。Z方向は、積層体40の積層方向でもある。
図5は、第2実施形態に係る半導体装置の要部の断面図である。上述した第1実施形態と同様の構成要素には同じ符号を付し、詳細な説明を省略する。
10:基板
30:配線層
40:積層体
51:セル膜
52:半導体膜
53a:第1コア絶縁膜
53b:第2コア絶縁膜
54:拡散膜
301:ソース線
401:導電層
402:絶縁層
Claims (4)
- 基板と、
前記基板上に設けられ、ソース線を含む配線層と、
前記配線層上で複数の導電層と複数の絶縁層とが交互に積層された積層体と、
前記積層体内に設けられたセル膜と、
前記積層体内で前記セル膜と対向する半導体膜と、
前記配線層内で前記ソース線と接するとともに前記積層体内で前記半導体膜と接する拡散膜と、を備え、
前記拡散膜は不純物を含み、前記拡散膜の上端部が、前記複数の導電層の中で最下層の導電層よりも高い位置にあり、
前記拡散膜に対向し、前記不純物を含む第1コア絶縁膜と、
前記第1コア絶縁膜上で前記半導体膜に対向し、前記不純物の濃度が前記第1コア絶縁膜よりも低い第2コア絶縁膜と、をさらに備える、半導体装置。 - 前記ソース線が金属を含む、請求項1に記載の半導体装置。
- 前記半導体膜が、前記不純物の濃度が前記拡散膜よりも低いノンドープドシリコンを含むチャネル膜である、請求項1または2に記載の半導体装置。
- 基板上に、第1絶縁膜を含む配線層を形成し、
前記配線層上に、複数の第1絶縁層と複数の第2絶縁層とが交互に積層された積層体を形成し、
前記第1絶縁膜および前記積層体を貫通するホールを形成し、
前記ホール内にセル膜を形成し、
前記ホール内に前記セル膜と対向する半導体膜を形成し、
前記ホールの底部に、不純物を含み、上端部が前記複数の第1絶縁層の中で最下層の第1絶縁層よりも高い位置にある第1コア絶縁膜を埋め込み、
前記不純物を前記第1コア絶縁膜から前記半導体膜の一部に拡散することによって、拡散膜を形成し、
前記第1コア絶縁膜上に、前記半導体膜と対向する第2コア絶縁膜を形成し、
前記第1絶縁膜を、前記拡散膜に接するソース線に置換し、
前記第1絶縁層を導電層に置換する、
半導体装置の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020151455A JP7502122B2 (ja) | 2020-09-09 | 2020-09-09 | 半導体装置およびその製造方法 |
TW110120650A TWI800845B (zh) | 2020-09-09 | 2021-06-07 | 半導體裝置及其製造方法 |
US17/304,260 US20220077184A1 (en) | 2020-09-09 | 2021-06-17 | Semiconductor device and manufacturing method thereof |
CN202110697656.3A CN114242727A (zh) | 2020-09-09 | 2021-06-23 | 半导体装置及其制造方法 |
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JP2020151455A JP7502122B2 (ja) | 2020-09-09 | 2020-09-09 | 半導体装置およびその製造方法 |
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JP2022045717A JP2022045717A (ja) | 2022-03-22 |
JP7502122B2 true JP7502122B2 (ja) | 2024-06-18 |
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US (1) | US20220077184A1 (ja) |
JP (1) | JP7502122B2 (ja) |
CN (1) | CN114242727A (ja) |
TW (1) | TWI800845B (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015177002A (ja) | 2014-03-14 | 2015-10-05 | 株式会社東芝 | 半導体記憶装置 |
US20180076210A1 (en) | 2016-09-13 | 2018-03-15 | Toshiba Memory Corporation | Semiconductor memory device |
US20200144285A1 (en) | 2018-11-07 | 2020-05-07 | Samsung Electronics Co., Ltd. | Vertical semiconductor devices |
JP2020141008A (ja) | 2019-02-27 | 2020-09-03 | キオクシア株式会社 | 半導体記憶装置及びその製造方法 |
Family Cites Families (14)
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KR101543331B1 (ko) * | 2009-07-06 | 2015-08-10 | 삼성전자주식회사 | 메탈 소스 라인을 갖는 수직 구조의 비휘발성 메모리 소자의 제조방법 |
KR20120060480A (ko) * | 2010-12-02 | 2012-06-12 | 삼성전자주식회사 | 수직 구조의 비휘발성 메모리 소자, 반도체 소자 및 시스템 |
US8902657B2 (en) * | 2012-09-07 | 2014-12-02 | Kabushiki Kaisha Toshiba | Semiconductor memory device and controller |
JP2017010951A (ja) * | 2014-01-10 | 2017-01-12 | 株式会社東芝 | 半導体記憶装置及びその製造方法 |
US9455263B2 (en) * | 2014-06-27 | 2016-09-27 | Sandisk Technologies Llc | Three dimensional NAND device with channel contacting conductive source line and method of making thereof |
KR102169196B1 (ko) * | 2014-07-17 | 2020-10-22 | 에스케이하이닉스 주식회사 | 불휘발성 메모리소자의 단위셀 및 셀 어레이와, 불휘발성 메모리소자의 제조방법 |
US9941293B1 (en) * | 2016-10-12 | 2018-04-10 | Sandisk Technologies Llc | Select transistors with tight threshold voltage in 3D memory |
JP2018142654A (ja) * | 2017-02-28 | 2018-09-13 | 東芝メモリ株式会社 | 半導体装置及びその製造方法 |
TWI648825B (zh) * | 2017-03-16 | 2019-01-21 | 日商東芝記憶體股份有限公司 | 半導體記憶體 |
US20180269222A1 (en) * | 2017-03-17 | 2018-09-20 | Macronix International Co., Ltd. | 3d memory device with layered conductors |
JP2019165135A (ja) * | 2018-03-20 | 2019-09-26 | 東芝メモリ株式会社 | 半導体記憶装置 |
KR102640292B1 (ko) * | 2018-07-16 | 2024-02-22 | 삼성전자주식회사 | 반도체 메모리 장치, 반도체 구조물, 및 반도체 장치 |
TWI757635B (zh) * | 2018-09-20 | 2022-03-11 | 美商森恩萊斯記憶體公司 | 記憶體結構及其用於電性連接三維記憶裝置之多水平導電層之階梯結構的製作方法 |
JP2020047814A (ja) * | 2018-09-20 | 2020-03-26 | キオクシア株式会社 | 半導体記憶装置 |
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2020
- 2020-09-09 JP JP2020151455A patent/JP7502122B2/ja active Active
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2021
- 2021-06-07 TW TW110120650A patent/TWI800845B/zh active
- 2021-06-17 US US17/304,260 patent/US20220077184A1/en not_active Abandoned
- 2021-06-23 CN CN202110697656.3A patent/CN114242727A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015177002A (ja) | 2014-03-14 | 2015-10-05 | 株式会社東芝 | 半導体記憶装置 |
US20180076210A1 (en) | 2016-09-13 | 2018-03-15 | Toshiba Memory Corporation | Semiconductor memory device |
US20200144285A1 (en) | 2018-11-07 | 2020-05-07 | Samsung Electronics Co., Ltd. | Vertical semiconductor devices |
JP2020141008A (ja) | 2019-02-27 | 2020-09-03 | キオクシア株式会社 | 半導体記憶装置及びその製造方法 |
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US20220077184A1 (en) | 2022-03-10 |
JP2022045717A (ja) | 2022-03-22 |
CN114242727A (zh) | 2022-03-25 |
TWI800845B (zh) | 2023-05-01 |
TW202226554A (zh) | 2022-07-01 |
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