公开(公告)号：US20220037350A1

公开(公告)日：2022-02-03

申请号：US16943826

申请日：2020-07-30

Applicant: Micron Technology, Inc.

Inventor： Daniel Billingsley ,  Matthew J. King ,  Jordan D. Greenlee ,  Yongjun J. Hu ,  Tom George ,  Amritesh Rai ,  Sidhartha Gupta ,  Kyle A. Ritter

IPC: H01L27/11573 ,  H01L27/11582 ,  H01L27/11556 ,  H01L27/11529 ,  H01L29/49 ,  H01L21/28

Abstract: A microelectronic device comprises a stack structure comprising alternating conductive structures and insulative structures arranged in tiers, each of the tiers individually comprising a conductive structure and an insulative structure, strings of memory cells vertically extending through the stack structure, the strings of memory cells comprising a channel material vertically extending through the stack structure, and another stack structure vertically overlying the stack structure and comprising other tiers of alternating levels of other conductive structures and other insulative structures, the other conductive structures exhibiting a conductivity greater than a conductivity of the conductive structures of the stack structure. Related memory devices, electronic systems, and methods are also described.

公开(公告)号：US20240099007A1

公开(公告)日：2024-03-21

申请号：US18525652

申请日：2023-11-30

Applicant: Micron Technology, Inc.

Inventor： Yoshiaki Fukuzumi ,  Jun Fujiki ,  Matthew J. King ,  Sidhartha Gupta ,  Paolo Tessariol ,  Kunal Shrotri ,  Kye Hyun Baek ,  Kyle A. Ritter ,  Shuji Tanaka ,  Umberto Maria Meotto ,  Richard J. Hill ,  Matthew Holland

IPC: H10B43/27 ,  H10B41/27

CPC classification number: H10B43/27 ,  H10B41/27

Abstract: A microelectronic device comprises a stack structure comprising a stack structure comprising a vertically alternating sequence of conductive structures and insulative structures arranged in tiers, the stack structure divided into block structures separated from one another by slot structures, strings of memory cells vertically extending through the block structures of the stack structure, the strings of memory cells individually comprising a channel material vertically extending through the stack structure, an additional stack structure vertically overlying the stack structure and comprising a vertical sequence of additional conductive structures and additional insulative structures arranged in additional tiers, first pillars extending through the additional stack structure and vertically overlying the strings of memory cells, each of the first pillars horizontally offset from a center of a corresponding string of memory cells, second pillars extending through the additional stack structure and vertically overlying the strings of memory cells, and additional slot structures comprising a dielectric material extending through at least a portion of the additional stack structure and sub-dividing each of the block structures into sub-block structures, the additional slot structures horizontally neighboring the first pillars. Related microelectronic devices, electronic systems, and methods are also described.

公开(公告)号：US20220384242A1

公开(公告)日：2022-12-01

申请号：US17818317

申请日：2022-08-08

Applicant: Micron Technology, Inc.

Inventor： Sidhartha Gupta ,  David Ross Economy ,  Richard J. Hill ,  Kyle A. Ritter ,  Naveen Kaushik

IPC: H01L21/768 ,  H01L23/522 ,  H01L23/528 ,  H01L23/532 ,  H01L27/11582 ,  H01L27/11556

Abstract: A method of forming an apparatus includes forming pillar structures extending vertically through a first isolation material, forming conductive lines operatively coupled to the pillar structures, forming dielectric structures overlying the conductive lines, and forming air gaps between neighboring conductive lines. The air gaps are laterally adjacent to the conductive lines with a portion of the air gaps extending above a plane of an upper surface of the laterally adjacent conductive lines and a portion of the air gaps extending below a plane of a lower surface of the laterally adjacent conductive lines. Apparatuses, memory devices, methods of forming a memory device, and electronic systems are also disclosed.

公开(公告)号：US20220199641A1

公开(公告)日：2022-06-23

申请号：US17127971

申请日：2020-12-18

Applicant: Micron Technology, Inc.

Inventor： Yoshiaki Fukuzumi ,  Jun Fujiki ,  Matthew J. King ,  Sidhartha Gupta ,  Paolo Tessariol ,  Kunal Shrotri ,  Kye Hyun Baek ,  Kyle A. Ritter ,  Shuji Tanaka ,  Umberto Maria Meotto ,  Richard J. Hill ,  Matthew Holland

IPC: H01L27/11582 ,  H01L27/11556

Abstract: A microelectronic device comprises a stack structure comprising a stack structure comprising a vertically alternating sequence of conductive structures and insulative structures arranged in tiers, the stack structure divided into block structures separated from one another by slot structures, strings of memory cells vertically extending through the block structures of the stack structure, the strings of memory cells individually comprising a channel material vertically extending through the stack structure, an additional stack structure vertically overlying the stack structure and comprising a vertical sequence of additional conductive structures and additional insulative structures arranged in additional tiers, first pillars extending through the additional stack structure and vertically overlying the strings of memory cells, each of the first pillars horizontally offset from a center of a corresponding string of memory cells, second pillars extending through the additional stack structure and vertically overlying the strings of memory cells, and additional slot structures comprising a dielectric material extending through at least a portion of the additional stack structure and sub-dividing each of the block structures into sub-block structures, the additional slot structures horizontally neighboring the first pillars. Related microelectronic devices, electronic systems, and methods are also described.

公开(公告)号：US20220181254A1

公开(公告)日：2022-06-09

申请号：US17681377

申请日：2022-02-25

Applicant: Micron Technology, Inc.

Inventor： Naveen Kaushik ,  Yoshihiko Kamata ,  Richard J. Hill ,  Kyle A. Ritter ,  Tomoko Ogura Iwasaki ,  Haitao Liu

IPC: H01L23/522 ,  H01L27/11524 ,  H01L27/1157 ,  H01L27/11582 ,  H01L27/11556

Abstract: Some embodiments include an assembly having channel-material-structures, and having memory cells along the channel-material-structures. The memory cells include charge-storage-material. Linear-conductive-structures are vertically offset from the channel-material-structures and are electrically coupled with the channel-material-structures. Intervening regions are between the linear-conductive-structures. Conductive-shield-structures are within the intervening regions. The conductive-shield-structures are electrically coupled with a reference-voltage-source.