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61.
公开(公告)号:US20230395150A1
公开(公告)日:2023-12-07
申请号:US18327846
申请日:2023-06-01
Applicant: Micron Technology, Inc.
Inventor: Rui Zhang , Shuangqiang Luo , Mohad Baboli , Rajasekhar Venigalla
IPC: G11C16/04 , H10B41/35 , H10B41/27 , H10B43/27 , H10B43/35 , H01L23/522 , H01L23/528 , H01L21/768
CPC classification number: G11C16/0483 , H10B41/35 , H10B41/27 , H10B43/27 , H10B43/35 , H01L23/5226 , H01L23/5283 , H01L21/76831
Abstract: A microelectronic device includes a stack structure including blocks separated from one another by dielectric slot structures and each including a vertically alternating sequence of conductive structures and insulative structures arranged in tiers. The blocks including a stadium structure including opposing staircase structures each having steps comprising edges of the tiers. The blocks further include a filled trench vertically overlying and within horizontal boundaries of the stadium structure. The filled trench includes dielectric liner structures and additional dielectric liner structures having a different material composition than that of the dielectric liner structures and alternating with the dielectric liner structures. The filled trench also includes dielectric fill material overlying an alternating sequence of the dielectric liner structures and additional dielectric liner structures.
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62.
公开(公告)号:US20230335193A1
公开(公告)日:2023-10-19
申请号:US17659102
申请日:2022-04-13
Applicant: Micron Technology, Inc.
Inventor: Shuangqiang Luo , Indra V. Chary , Mithun Kumar Ramasahayam
IPC: G11C16/04 , H01L27/11524 , H01L27/11556 , H01L27/1157 , H01L27/11582 , H01L23/528
CPC classification number: G11C16/0483 , H01L27/11524 , H01L27/11556 , H01L27/1157 , H01L27/11582 , H01L23/5283
Abstract: A microelectronic device comprises a stack structure comprising blocks each including a vertically alternating sequence of conductive material and insulative material arranged in tiers, at least one of the blocks comprising: a memory array region having vertically extending strings of memory cells within a horizontal area thereof; and a staircase region horizontally neighboring the memory array region. The staircase structure has steps comprising horizontal ends of the tiers; and a crest sub-region horizontally interposed between the staircase structure and the memory array region. A masking structure overlies the stack structure and has a different material composition than each of the conductive material and the insulative material. Filled slot structures are interposed between the blocks of the stack structure, at least one of the filled slot structures comprises at least one fill material that has an uppermost boundary vertically underlying an uppermost boundary of the masking structure.
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63.
公开(公告)号:US20230290739A1
公开(公告)日:2023-09-14
申请号:US17694040
申请日:2022-03-14
Applicant: Micron Technology, Inc.
Inventor: Shuangqiang Luo , John Hopkins
IPC: H01L23/00 , H01L27/11519 , H01L27/11524 , H01L27/11529 , H01L27/11565 , H01L27/1157 , H01L27/11573 , H01L29/423 , H01L21/28 , H01L23/532 , H01L23/522 , H01L23/528
CPC classification number: H01L23/562 , H01L27/11519 , H01L27/11524 , H01L27/11529 , H01L27/11565 , H01L27/1157 , H01L27/11573 , H01L29/42328 , H01L29/42344 , H01L29/40114 , H01L29/40117 , H01L23/53257 , H01L23/5226 , H01L23/5283
Abstract: Some embodiments include apparatuses and methods of forming the apparatuses. One of the apparatuses includes tiers located one over another, the tiers including respective memory cells and control gates for the memory cells; a first pillar extending through the tiers and separated from the control gates, the first pillar including a first dielectric liner portion and a first core portion adjacent the first dielectric liner portion, the first dielectric liner portion and the first core portion extending along a length of the first pillar; and a second pillar extending through the tiers and separated from the control gates, the second pillar including a second dielectric liner portion and a second core portion adjacent the second dielectric liner portion, the second dielectric portion and the second core portion extending along a length of the second pillar, wherein the first core portion and the second core portion have different materials.
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64.
公开(公告)号:US20230290409A1
公开(公告)日:2023-09-14
申请号:US17654311
申请日:2022-03-10
Applicant: Micron Technology, Inc.
Inventor: Shuangqiang Luo , John D. Hopkins , Jiewei Chen , Jordan D. Greenlee
IPC: G11C16/04 , H01L27/11524 , H01L27/11556 , H01L27/1157 , H01L27/11582 , H01L21/768
CPC classification number: G11C16/0483 , H01L27/11524 , H01L27/11556 , H01L27/1157 , H01L27/11582 , H01L21/76843
Abstract: A microelectronic device includes a stack structure, slot structures, and dielectric material. The stack structure includes blocks each including a vertically alternating sequence of conductive material and insulative material arranged in tiers. At least one of the blocks includes an array region including strings of memory cells, and a staircase region including a crest sub-region interposed between a staircase structure and the array region. An uppermost boundary of the tiers within the crest sub-region underlies an uppermost boundary of the tiers within the array region. The slot structures are interposed between the blocks of the stack structure. The dielectric material extends over and between the blocks of the stack structure. A thickness of a portion of the dielectric material overlying the crest sub-region is greater than a thickness of an additional portion of the dielectric material overlying the array region. Related memory devices, electronic systems, and methods are also described.
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公开(公告)号:US11756596B1
公开(公告)日:2023-09-12
申请号:US17752332
申请日:2022-05-24
Applicant: Micron Technology, Inc.
Inventor: Shuangqiang Luo , Indra V. Chary , Lifang Xu
IPC: G11C7/18 , G11C7/10 , H01L25/065 , H01L23/48 , H10B99/00
CPC classification number: G11C7/18 , G11C7/1027 , H01L23/481 , H01L25/0652 , H10B99/00
Abstract: Methods, systems, and devices for transition structures for three-dimensional memory arrays are described. A memory device may include a staircase region which includes a set of vias. The set of vias may include a first subset of vias which couple respective word line plates of the memory region with associated word line decoders, and a second subset of vias which are electrically isolated from the word line plates. The second subset of vias may be arranged in one or more rows positioned between the first subset of vias and the memory region. In some cases, the second subset of vias may be positioned above respective conductive contacts. Additionally or alternatively, the second subset of vias may be positioned above a common conductor shared with pillars of the memory region.
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公开(公告)号:US11716841B2
公开(公告)日:2023-08-01
申请号:US17142804
申请日:2021-01-06
Applicant: Micron Technology, Inc.
Inventor: Shuangqiang Luo , Lifang Xu , Indra V. Chary
Abstract: Some embodiments include an integrated assembly having a first memory region, a second memory region, and an intermediate region between the memory regions. A stack extends across the memory regions and the intermediate region. The stack includes alternating conductive levels and insulative levels. Channel-material-pillars are arranged within the memory regions. Memory-block-regions extend longitudinally across the memory regions and the intermediate region. Staircase regions are within the intermediate region. Each of the staircase regions laterally overlaps two of the memory-block-regions. First panel regions extend longitudinally across at least portions of the staircase regions. Second panel regions extend longitudinally and provide lateral separation between adjacent memory-block-regions. The second panel regions are of laterally different dimensions than the first panel regions and/or are compositionally different than the first panel regions. Some embodiments include methods of forming integrated assemblies.
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67.
公开(公告)号:US11696445B2
公开(公告)日:2023-07-04
申请号:US17652425
申请日:2022-02-24
Applicant: Micron Technology, Inc.
Inventor: Shuangqiang Luo , Indra V. Chary , Justin B. Dorhout
CPC classification number: H10B43/27 , G11C16/08 , H10B41/10 , H10B41/27 , H10B41/35 , H10B43/10 , H10B43/35
Abstract: A method of forming a microelectronic device comprises forming a microelectronic device structure. The microelectronic device structure comprises a stack structure comprising insulative structures and additional insulative structures vertically alternating with the insulative structures, a dielectric structure vertically extending partially through the stack structure, and a dielectric material vertically overlying and horizontally extending across the stack structure and the dielectric structure. Portions of at least the dielectric material and the dielectric structure are removed to form a trench vertically overlying and at least partially horizontally overlapping a remaining portion of the dielectric structure. The trench is substantially filled with additional dielectric material. Microelectronic devices, memory devices, and electronic systems are also described.
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公开(公告)号:US20230207470A1
公开(公告)日:2023-06-29
申请号:US18057478
申请日:2022-11-21
Applicant: Micron Technology, Inc.
Inventor: Shuangqiang Luo , Nancy M. Lomeli
IPC: H01L23/535 , H01L23/528 , H01L27/11556 , H01L27/11529 , H01L27/11582 , H01L27/11573
CPC classification number: H01L23/535 , H01L23/5283 , H01L27/11529 , H01L27/11556 , H01L27/11573 , H01L27/11582
Abstract: A microelectronic device is disclosed, comprising: a stack structure comprising vertically alternating conductive structures and insulating structures arranged in tiers, each of the tiers individually comprising one of the conductive structures and one of the insulating structures, the stack structure having blocks separated from one another by filled slot structures; a source tier structure underlying the stack structure and comprising: a merged conductive structure adjacent a first discrete conductive structure in a first direction; and a second discrete conductive structure in the first direction that is spaced apart from the merged conductive by the first discrete conductive structure; a first support contact structure on the first discrete conductive structure; and a subsequent support contact structure on the merged conductive structure and adjacent the first support contact in the first direction, wherein one of the filled slot structures is vertically directly above at least a portion of the merged conductive structure.
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公开(公告)号:US11476266B2
公开(公告)日:2022-10-18
申请号:US16799543
申请日:2020-02-24
Applicant: Micron Technology, Inc.
Inventor: Shuangqiang Luo , Nancy M. Lomeli , Lifang Xu
IPC: H01L27/11582 , H01L27/11556 , G11C5/06 , G11C5/02
Abstract: A microelectronic device comprises a stack structure comprising vertically alternating conductive structures and insulating structures arranged in tiers, the tiers individually comprising one of the conductive structures and one of the insulating structures, a staircase structure within the stack structure and having steps comprising edges of at least some of the tiers, conductive contact structures on the steps of the staircase structure, support pillar structures laterally offset in at least a first direction from the conductive contact structures and extending through the stack structure, and bridge structures comprising an electrically insulating material extending vertically through at least a portion of the stack structure and between at least some adjacent support pillar structures of the support pillar structures. Related memory devices, electronic systems, and methods are also described.
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公开(公告)号:US20220320137A1
公开(公告)日:2022-10-06
申请号:US17841624
申请日:2022-06-15
Applicant: Micron Technology, Inc.
Inventor: Shuangqiang Luo , Indra V. Chary
IPC: H01L27/11582 , H01L27/1157 , H01L27/11556 , H01L27/11524
Abstract: Some embodiments include an integrated assembly having a first deck, a second deck over the first deck, and a third deck over the second deck. The first deck has first conductive levels disposed one atop another. The second deck has second conductive levels disposed one atop another. The third deck has third conductive levels disposed one atop another. A first staircase region extends to the first and second conductive levels, and passes through the third conductive levels. A second staircase region extends to the third conductive levels and not to the first and second conductive levels. Some embodiments include methods of forming integrated assemblies.
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