JP2022514153A - 三次元メモリデバイス及びそれを形成するための方法 - Google Patents
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Abstract
Description
Claims (27)
- 誘電体エッチング停止層を形成することであって、前記誘電体エッチング停止層は基板上に配置される、ことと、
前記誘電体エッチング停止層上に誘電体スタックを形成することであって、前記誘電体スタックは、複数の交互配置されている誘電体層及び犠牲層を含む、誘電体スタックを形成することと、
前記誘電体スタックを貫通して垂直方向に延在する開口部を形成することと、
前記誘電体エッチング停止層を貫通するように前記開口部を延長することと、
前記開口部の下部に、選択的エピタキシャル成長(SEG)プラグを形成することであって、前記SEGプラグは前記基板上に配置される、選択的エピタキシャル成長(SEG)プラグを形成することと、
前記開口部内の前記SEGプラグの上側に接触するチャネル構造を形成することと、
前記誘電体スタック内の前記犠牲層を導電体層に置き換えることにより、複数の交互配置されている誘電体層及び前記導電体層を含むメモリスタックを形成することと、を含む、
三次元(3D)メモリデバイスを形成するための方法。 - 前記誘電体エッチング停止層を形成することは、前記基板上にhigh‐k誘電体層を蒸着することを含む、請求項1に記載の方法。
- 前記high‐k誘電体層は、酸化アルミニウム(Al2O3)、酸化ハフニウム(HfO2)、酸化タンタル(Ta2O5)、酸化ジルコニウム(ZrO2)、又は酸化チタン(TiO2)のうちの少なくとも1つを含む、請求項2に記載の方法。
- 前記誘電体エッチング停止層を形成することは、前記基板の一部を酸化させることによって自然酸化膜を形成することを含む、請求項1に記載の方法。
- 前記誘電体エッチング停止層を貫通するように前記開口部を延長することは、前記誘電体エッチング停止層を穿孔することを含む、請求項1から4のいずれか一項に記載の方法。
- 前記基板はシリコンを含み、前記犠牲層のそれぞれは窒化シリコンを含む、請求項1から5のいずれか一項に記載の方法。
- 前記SEGプラグを形成することは、前記開口部で前記基板から半導体層をエピタキシャル成長させることを含む、請求項1から6のいずれか一項に記載の方法。
- 前記チャネル構造を形成することは、
前記SEGプラグの上側に前記開口部の側壁に沿ってメモリ膜を形成することと、
垂直方向に延在する半導体チャネルを前記メモリ膜上に形成することと、を含む、
請求項1から7のいずれか一項に記載の方法。 - 前記メモリスタックを形成することは、
前記誘電体スタックを貫通するようにスリットを形成することと、
前記誘電体スタック内の前記犠牲層を、前記スリットを介してエッチングして、複数の横方向凹部を形成することと、
前記スリット及び前記横方向凹部の側壁に沿ってゲート誘電体層を蒸着することと、前記ゲート誘電体層上に前記導電体層を蒸着することと、を含む、
請求項1から8のいずれか一項に記載の方法。 - 前記開口部を形成することは、前記誘電体エッチング停止層で停止するまで、前記誘電体スタックを貫通するようにエッチングすることを含む、請求項1から9のいずれか一項に記載の方法。
- 前記誘電体エッチング停止層の厚さは、約1nm~約20nmである、請求項1から10のいずれか一項に記載の方法。
- 誘電体エッチング停止層を形成することであって、前記誘電体エッチング停止層は基板上に配置される、誘電体エッチング停止層を形成することと、
前記誘電体エッチング停止層上に複数の交互配置されている誘電体層及び犠牲層を形成することと、
前記交互配置されている誘電体層及び犠牲層を貫通して垂直方向に延在する開口部を形成することと、
前記誘電体エッチング停止層を貫通するように前記開口部を延長することと、
前記開口部の下部に、選択的エピタキシャル成長(SEG)プラグを形成することであって、前記SEGプラグは前記基板上に配置される、選択的エピタキシャル成長(SEG)プラグを形成することと、を含む、
半導体構造を形成するための方法。 - 前記誘電体エッチング停止層を形成することは、前記基板上にhigh‐k誘電体層を蒸着することを含む、請求項12に記載の方法。
- 前記high‐k誘電体層は、酸化アルミニウム(Al2O3)、酸化ハフニウム(HfO2)、酸化タンタル(Ta2O5)、酸化ジルコニウム(ZrO2)、又は酸化チタン(TiO2)のうちの少なくとも1つを含む、請求項13に記載の方法。
- 前記誘電体エッチング停止層を形成することは、前記基板の一部を酸化させることによって自然酸化膜を形成することを含む、請求項12に記載の方法。
- 前記誘電体エッチング停止層を貫通するように前記開口部を延長することは、前記誘電体エッチング停止層を穿孔することを含む、請求項12から15のいずれか一項に記載の方法。
- 前記犠牲層を除去することをさらに含む、請求項12から16のいずれか一項に記載の方法。
- 前記基板はシリコンを含み、前記犠牲層のそれぞれは窒化シリコンを含む、請求項12から17のいずれか一項に記載の方法。
- 前記SEGプラグを形成することは、前記開口部で前記基板から半導体層をエピタキシャル成長させることを含む、請求項12から18のいずれか一項に記載の方法。
- 前記SEGプラグの上側に前記開口部の側壁に沿ってメモリ膜を形成することと、
垂直方向に延在する半導体チャネルを前記メモリ膜上に形成することと、を含む、
チャネル構造を形成することをさらに含む、請求項12から19のいずれか一項に記載の方法。 - 前記交互配置されている誘電体層及び犠牲層を貫通するようにスリットを形成することと、
前記犠牲層を、前記スリットを介してエッチングして、複数の横方向凹部を形成することと、
前記スリット及び前記横方向凹部の側壁に沿ってゲート誘電体層を蒸着することと、前記ゲート誘電体層上に導電体層を蒸着することと、を含む、
メモリスタックを形成することをさらに含む、請求項12から20のいずれか一項に記載の方法。 - 基板と、
前記基板上に配置されている誘電体エッチング停止層と、
前記誘電体エッチング停止層上に配置され、複数の交互配置されている導電体層及び誘電体層を含むメモリスタックと、
それぞれが前記メモリスタックを貫通して垂直方向に延在し、かつ自身の下部に選択的エピタキシャル成長(SEG)プラグを含む、複数のメモリストリングであって、前記SEGプラグは前記基板上に配置される、複数のメモリストリングと、を備える、
三次元(3D)メモリデバイス。 - 前記誘電体エッチング停止層はhigh‐k誘電体層である、請求項22に記載のメモリデバイス。
- 前記high‐k誘電体層は、酸化アルミニウム(Al2O3)、酸化ハフニウム(HfO2)、酸化タンタル(Ta2O5)、酸化ジルコニウム(ZrO2)、又は酸化チタン(TiO2)のうちの少なくとも1つを含む、請求項23に記載のメモリデバイス。
- 前記誘電体エッチング停止層は自然酸化膜である、請求項22に記載のメモリデバイス。
- 前記SEGプラグは、材料が前記基板の材料と同じである、エピタキシャル成長した半導体層を含む、請求項22から25のいずれか一項に記載のメモリデバイス。
- 前記メモリストリングのそれぞれは、
前記交互配置されている導電体層及び誘電体層を貫通して垂直方向に延在する半導体チャネルと、
前記半導体チャネルと前記交互配置されている導電体層及び誘電体層との間に横方向に配置されているメモリ膜と、をさらに含む、請求項22から26のいずれか一項に記載のメモリデバイス。
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Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109712990A (zh) * | 2019-01-02 | 2019-05-03 | 长江存储科技有限责任公司 | 一种三维存储器及其制备方法 |
US11380699B2 (en) | 2019-02-28 | 2022-07-05 | Micron Technology, Inc. | Memory array and methods used in forming a memory array |
CN110010617A (zh) * | 2019-03-27 | 2019-07-12 | 长江存储科技有限责任公司 | 一种三维存储器及其制备方法 |
CN110114879B (zh) | 2019-03-29 | 2021-01-26 | 长江存储科技有限责任公司 | 具有氮氧化硅栅极到栅极电介质层的存储堆叠体及其形成方法 |
CN110114880B (zh) | 2019-03-29 | 2020-10-30 | 长江存储科技有限责任公司 | 具有氮化硅栅极到栅极电介质层的存储堆叠体及其形成方法 |
CN110034124A (zh) * | 2019-05-15 | 2019-07-19 | 长江存储科技有限责任公司 | 一种3d nand存储器件及其制造方法 |
WO2021035601A1 (en) * | 2019-08-29 | 2021-03-04 | Yangtze Memory Technologies Co., Ltd. | Novel 3d nand memory device and method of forming the same |
CN111223872B (zh) * | 2020-01-17 | 2023-04-07 | 长江存储科技有限责任公司 | 一种3d nand存储器及其制造方法 |
CN113594173B (zh) * | 2020-01-21 | 2023-12-12 | 长江存储科技有限责任公司 | 具有增大的接头临界尺寸的三维存储器器件及其形成方法 |
US11380697B2 (en) * | 2020-02-25 | 2022-07-05 | Tokyo Electron Limited | Raised pad formations for contacts in three-dimensional structures on microelectronic workpieces |
CN111244095B (zh) * | 2020-03-25 | 2023-06-30 | 长江存储科技有限责任公司 | 三维存储器及其制备方法 |
US11963349B2 (en) | 2020-05-27 | 2024-04-16 | Yangtze Memory Technologies Co., Ltd. | Methods for forming three-dimensional memory devices with backside source contacts |
CN111937148B (zh) | 2020-05-27 | 2021-04-16 | 长江存储科技有限责任公司 | 三维存储器件 |
US11877448B2 (en) | 2020-05-27 | 2024-01-16 | Yangtze Memory Technologies Co., Ltd. | Methods for forming three-dimensional memory devices |
TWI793434B (zh) * | 2020-07-07 | 2023-02-21 | 大陸商長江存儲科技有限責任公司 | 用於形成三維記憶體元件的方法 |
CN112185969B (zh) * | 2020-09-30 | 2021-08-13 | 长江存储科技有限责任公司 | 三维存储器结构及其制备方法 |
CN112259542A (zh) * | 2020-10-14 | 2021-01-22 | 长江存储科技有限责任公司 | 三维存储器及其制造方法 |
CN113013172B (zh) * | 2021-03-05 | 2022-01-25 | 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 |
---|---|---|---|---|
JP2014033201A (ja) * | 2012-07-31 | 2014-02-20 | Samsung Electronics Co Ltd | 半導体メモリ素子、および、その製造方法 |
JP2014057067A (ja) * | 2012-09-11 | 2014-03-27 | Samsung Electronics Co Ltd | 3次元半導体メモリ装置及びその製造方法 |
US9230979B1 (en) * | 2014-10-31 | 2016-01-05 | Sandisk Technologies Inc. | High dielectric constant etch stop layer for a memory structure |
WO2016209379A1 (en) * | 2015-06-24 | 2016-12-29 | Sandisk Technologies Llc | Differential etch of metal oxide blocking dielectric layer for three-dimensional memory devices |
CN107527920A (zh) * | 2017-08-31 | 2017-12-29 | 长江存储科技有限责任公司 | 一种3d nand存储器及其制造方法 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101465324B (zh) * | 2008-12-30 | 2011-11-16 | 中国科学院上海微系统与信息技术研究所 | 实现三维立体结构相变存储芯片的工艺方法 |
KR101763420B1 (ko) * | 2010-09-16 | 2017-08-01 | 삼성전자주식회사 | 3차원 반도체 기억 소자 및 그 제조 방법 |
CN102544049B (zh) * | 2010-12-22 | 2014-04-16 | 中国科学院微电子研究所 | 三维半导体存储器件及其制备方法 |
US8643142B2 (en) * | 2011-11-21 | 2014-02-04 | Sandisk Technologies Inc. | Passive devices for 3D non-volatile memory |
KR20130072523A (ko) * | 2011-12-22 | 2013-07-02 | 에스케이하이닉스 주식회사 | 3차원 불휘발성 메모리 소자 및 그 제조방법 |
KR102045858B1 (ko) * | 2013-02-06 | 2019-11-18 | 삼성전자주식회사 | 3차원 반도체 장치 및 그 제조 방법 |
KR20140093106A (ko) * | 2013-01-17 | 2014-07-25 | 삼성전자주식회사 | 3차원 플래쉬 메모리 소자 |
KR102078852B1 (ko) * | 2013-08-29 | 2020-02-18 | 삼성전자 주식회사 | 반도체 장치 및 그 제조 방법 |
US9379132B2 (en) * | 2014-10-24 | 2016-06-28 | Sandisk Technologies Inc. | NAND memory strings and methods of fabrication thereof |
US9659958B2 (en) | 2015-10-13 | 2017-05-23 | Samsung Elctronics Co., Ltd. | Three-dimensional semiconductor memory device |
KR102499564B1 (ko) * | 2015-11-30 | 2023-02-15 | 에스케이하이닉스 주식회사 | 전자 장치 및 그 제조 방법 |
CN107305896B (zh) * | 2016-04-22 | 2019-11-26 | 中芯国际集成电路制造(上海)有限公司 | 半导体器件的制备方法 |
US10020363B2 (en) * | 2016-11-03 | 2018-07-10 | Sandisk Technologies Llc | Bulb-shaped memory stack structures for direct source contact in three-dimensional memory device |
US9978766B1 (en) * | 2016-11-09 | 2018-05-22 | Sandisk Technologies Llc | Three-dimensional memory device with electrically isolated support pillar structures and method of making thereof |
CN110313061B (zh) | 2017-03-08 | 2020-06-26 | 长江存储科技有限责任公司 | 三维存储器设备的接合开口结构及其形成方法 |
CN107658315B (zh) * | 2017-08-21 | 2019-05-14 | 长江存储科技有限责任公司 | 半导体装置及其制备方法 |
CN107507831B (zh) * | 2017-08-31 | 2019-01-25 | 长江存储科技有限责任公司 | 一种3d nand存储器的存储单元结构及其形成方法 |
CN107658317B (zh) * | 2017-09-15 | 2019-01-01 | 长江存储科技有限责任公司 | 一种半导体装置及其制备方法 |
CN107731838A (zh) * | 2017-11-09 | 2018-02-23 | 长江存储科技有限责任公司 | 一种nand存储器及其制备方法 |
-
2018
- 2018-10-09 EP EP18936472.2A patent/EP3821467A4/en active Pending
- 2018-10-09 CN CN201880002086.8A patent/CN109496360A/zh active Pending
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014033201A (ja) * | 2012-07-31 | 2014-02-20 | Samsung Electronics Co Ltd | 半導体メモリ素子、および、その製造方法 |
JP2014057067A (ja) * | 2012-09-11 | 2014-03-27 | Samsung Electronics Co Ltd | 3次元半導体メモリ装置及びその製造方法 |
US9230979B1 (en) * | 2014-10-31 | 2016-01-05 | Sandisk Technologies Inc. | High dielectric constant etch stop layer for a memory structure |
WO2016209379A1 (en) * | 2015-06-24 | 2016-12-29 | Sandisk Technologies Llc | Differential etch of metal oxide blocking dielectric layer for three-dimensional memory devices |
US20160379989A1 (en) * | 2015-06-24 | 2016-12-29 | SanDisk Technologies, Inc. | Differential etch of metal oxide blocking dielectric layer for three-dimensional memory devices |
CN107527920A (zh) * | 2017-08-31 | 2017-12-29 | 长江存储科技有限责任公司 | 一种3d nand存储器及其制造方法 |
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