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公开(公告)号:US10121906B2
公开(公告)日:2018-11-06
申请号:US15467765
申请日:2017-03-23
Applicant: Micron Technology, Inc.
Inventor: John D. Hopkins
IPC: H01L29/788 , H01L21/28 , H01L21/02 , H01L27/11556 , H01L27/11582 , H01L29/66 , H01L29/792 , H01L29/423 , H01L29/51
Abstract: Some embodiments include methods of forming vertical memory strings. A trench is formed to extend through a stack of alternating electrically conductive levels and electrically insulative levels. An electrically insulative panel is formed within the trench. Some sections of the panel are removed to form openings. Each opening has a first pair of opposing sides along the stack, and has a second pair of opposing sides along remaining sections of the panel. Cavities are formed to extend into the electrically conductive levels along the first pair of opposing sides of the openings. Charge blocking material and charge-storage material is formed within the cavities. Channel material is formed within the openings and is spaced from the charge-storage material by gate dielectric material. Some embodiments include semiconductor constructions, and some embodiments include methods of forming vertically-stacked structures.
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公开(公告)号:US20180219021A1
公开(公告)日:2018-08-02
申请号:US15422335
申请日:2017-02-01
Applicant: Micron Technology, Inc.
Inventor: David Daycock , Richard J. Hill , Christopher Larsen , Woohee Kim , Justin B. Dorhout , Brett D. Lowe , John D. Hopkins , Qian Tao , Barbara L. Casey
IPC: H01L27/11582 , H01L27/1157 , H01L29/10 , H01L29/423 , H01L21/28
CPC classification number: H01L27/11582 , H01L21/28282 , H01L27/1157 , H01L29/1037 , H01L29/4234
Abstract: Some embodiments include a memory array which has a vertical stack of alternating insulative levels and wordline levels. The wordline levels have terminal ends corresponding to control gate regions. Charge-trapping material is along the control gate regions of the wordline levels and not along the insulative levels. The charge-trapping material is spaced from the control gate regions by charge-blocking material. Channel material extends vertically along the stack and is laterally spaced from the charge-trapping material by dielectric material. Some embodiments include methods of forming NAND memory arrays.
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公开(公告)号:US09679964B2
公开(公告)日:2017-06-13
申请号:US14853793
申请日:2015-09-14
Applicant: Micron Technology, Inc.
Inventor: Chris Larsen , Alex J. Schrinsky , John D. Hopkins , Matthew J. King
IPC: H01L21/76 , H01L29/06 , H01L29/66 , H01L21/762 , H01L21/74
CPC classification number: H01L29/0657 , H01L21/743 , H01L21/76224 , H01L29/0649 , H01L29/0692
Abstract: Some embodiments include semiconductor constructions having semiconductor material patterned into two mesas spaced from one another by at least one dummy projection. The dummy projection has a width along a cross-section of X and the mesas have widths along the cross-section of at least 3X. Some embodiments include semiconductor constructions having a memory array region and a peripheral region adjacent the memory array region. Semiconductor material within the peripheral region is patterned into two relatively wide mesas spaced from one another by at least one relatively narrow projection. The relatively narrow projection has a width along a cross-section of X and the relatively wide mesas have widths along the cross-section of at least 3X.
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公开(公告)号:US09627550B2
公开(公告)日:2017-04-18
申请号:US14802930
申请日:2015-07-17
Applicant: Micron Technology, Inc.
Inventor: John D. Hopkins
IPC: H01L29/788 , H01L29/66 , H01L29/792 , H01L21/336 , H01L21/28 , H01L21/02 , H01L27/11556 , H01L27/11582
CPC classification number: H01L29/7889 , H01L21/02164 , H01L21/0217 , H01L21/28273 , H01L21/28282 , H01L27/11556 , H01L27/11582 , H01L29/42328 , H01L29/42344 , H01L29/511 , H01L29/66825 , H01L29/66833 , H01L29/7926
Abstract: Some embodiments include methods of forming vertical memory strings. A trench is formed to extend through a stack of alternating electrically conductive levels and electrically insulative levels. An electrically insulative panel is formed within the trench. Some sections of the panel are removed to form openings. Each opening has a first pair of opposing sides along the stack, and has a second pair of opposing sides along remaining sections of the panel. Cavities are formed to extend into the electrically conductive levels along the first pair of opposing sides of the openings. Charge blocking material and charge-storage material is formed within the cavities. Channel material is formed within the openings and is spaced from the charge-storage material by gate dielectric material. Some embodiments include semiconductor constructions, and some embodiments include methods of forming vertically-stacked structures.
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公开(公告)号:US09105737B2
公开(公告)日:2015-08-11
申请号:US13735908
申请日:2013-01-07
Applicant: Micron Technology, Inc.
Inventor: John D. Hopkins
IPC: H01L29/788 , H01L29/66 , H01L29/792 , H01L21/336 , H01L21/28 , H01L27/115
CPC classification number: H01L29/7889 , H01L21/02164 , H01L21/0217 , H01L21/28273 , H01L21/28282 , H01L27/11556 , H01L27/11582 , H01L29/42328 , H01L29/42344 , H01L29/511 , H01L29/66825 , H01L29/66833 , H01L29/7926
Abstract: Some embodiments include methods of forming vertical memory strings. A trench is formed to extend through a stack of alternating electrically conductive levels and electrically insulative levels. An electrically insulative panel is formed within the trench. Some sections of the panel are removed to form openings. Each opening has a first pair of opposing sides along the stack, and has a second pair of opposing sides along remaining sections of the panel. Cavities are formed to extend into the electrically conductive levels along the first pair of opposing sides of the openings. Charge blocking material and charge-storage material is formed within the cavities. Channel material is formed within the openings and is spaced from the charge-storage material by gate dielectric material. Some embodiments include semiconductor constructions, and some embodiments include methods of forming vertically-stacked structures.
Abstract translation: 一些实施例包括形成垂直存储器串的方法。 形成沟槽以延伸通过交替导电水平和电绝缘水平的堆叠。 在沟槽内形成电绝缘面板。 去除面板的一些部分以形成开口。 每个开口具有沿堆叠的第一对相对侧,并且具有沿面板的剩余部分的第二对相对侧。 腔形成为沿着开口的第一对相对侧延伸到导电水平。 在空腔内形成电荷阻挡材料和电荷储存材料。 通道材料形成在开口内并且通过栅极电介质材料与电荷存储材料间隔开。 一些实施例包括半导体结构,并且一些实施例包括形成垂直堆叠结构的方法。
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公开(公告)号:US08921034B2
公开(公告)日:2014-12-30
申请号:US13631068
申请日:2012-09-28
Applicant: Micron Technology, Inc.
Inventor: John D. Hopkins
IPC: G03F7/00 , H01L27/115
CPC classification number: H01L21/3086 , G03F7/0035 , H01L21/0337 , H01L21/3088 , H01L27/10894 , H01L27/11526 , H01L27/11529 , H01L29/0657
Abstract: Some embodiments include methods of patterning a base. First and second masking features are formed over the base. The first and second masking features include pedestals of carbon-containing material capped with silicon oxynitride. A mask is formed over the second masking features, and the silicon oxynitride caps are removed from the first masking features. Spacers are formed along sidewalls of the first masking features. The mask and the carbon-containing material of the first masking features are removed. Patterns of the spacers and second masking features are transferred into one or more materials of the base to pattern said one or more materials. Some embodiments include patterned bases.
Abstract translation: 一些实施例包括图案化基底的方法。 在基底上形成第一和第二掩蔽特征。 第一和第二掩模特征包括用氮氧化硅覆盖的含碳材料的基座。 在第二掩蔽特征上形成掩模,并且从第一掩蔽特征中去除氧氮化硅帽。 间隔件沿着第一掩蔽特征的侧壁形成。 去除掩模和第一掩蔽特征的含碳材料。 间隔物和第二掩蔽特征的图案被转移到基底的一种或多种材料中以图案化所述一种或多种材料。 一些实施例包括图案化基底。
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公开(公告)号:US20140306323A1
公开(公告)日:2014-10-16
申请号:US13860427
申请日:2013-04-10
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Chris Larsen , Alex J. Schrinsky , John D. Hopkins , Matthew King
IPC: H01L29/06
CPC classification number: H01L29/0657 , H01L21/743 , H01L21/76224 , H01L29/0649 , H01L29/0692
Abstract: Some embodiments include semiconductor constructions having semiconductor material patterned into two mesas spaced from one another by at least one dummy projection. The dummy projection has a width along a cross-section of X and the mesas have widths along the cross-section of at least 3X. Some embodiments include semiconductor constructions having a memory array region and a peripheral region adjacent the memory array region. Semiconductor material within the peripheral region is patterned into two relatively wide mesas spaced from one another by at least one relatively narrow projection. The relatively narrow projection has a width along a cross-section of X and the relatively wide mesas have widths along the cross-section of at least 3X.
Abstract translation: 一些实施例包括具有通过至少一个虚拟突起彼此间隔开的两个台面的半导体材料的半导体结构。 虚拟突起具有沿X的横截面的宽度,并且台面具有至少3X的横截面的宽度。 一些实施例包括具有存储器阵列区域和与存储器阵列区域相邻的外围区域的半导体结构。 周边区域内的半导体材料被图案化成两个相对较宽的台面,其彼此间隔开至少一个较窄的突起。 相对窄的突起具有沿X的横截面的宽度,并且相对宽的台面具有至少3X的横截面的宽度。
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公开(公告)号:US20250166704A1
公开(公告)日:2025-05-22
申请号:US19027291
申请日:2025-01-17
Applicant: Micron Technology, Inc.
Inventor: Alyssa N. Scarbrough , John D. Hopkins , Collin Howder , Jordan D. Greenlee
Abstract: A method used in forming a memory array comprising strings of memory cells comprises forming a lower portion of a stack that will comprise vertically-alternating first tiers and second tiers. The stack comprises laterally-spaced memory-block regions. Material of the first tiers is of different composition from material of the second tiers. The lower portion comprises an upper second tier comprising insulative material. The vertically-alternating first tiers and second tiers of an upper portion of the stack are formed above the lower portion. Channel-material strings are formed that extend through the upper portion to the lower portion. Horizontally-elongated lines are formed in the upper second tier longitudinally-along opposing lateral edges of the memory-block regions. Material of the lines is of different composition from that of the insulative material in the upper second tier that is laterally-between the lines. Horizontally-elongated trenches are formed into the stack that are individually between immediately-laterally-adjacent of the memory-block regions and that extend through the upper portion to the lower portion. Other embodiments, including structure independent of method, are disclosed.
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公开(公告)号:US20250159890A1
公开(公告)日:2025-05-15
申请号:US19025791
申请日:2025-01-16
Applicant: Micron Technology, Inc.
Inventor: John D. Hopkins , Rita J. Klein , Jordan D. Greenlee
Abstract: Electronic devices (e.g., semiconductor devices, which may be configured for 3D NAND memory devices), comprise pillars extending through a stack of alternating conductive tiers and insulative tiers. The conductive tiers, which may include control gates for access lines (e.g., word lines), include conductive rails along an outer sidewall of the conductive tiers, distal from the pillars extending through the conductive tiers. The conductive rails protrude laterally beyond outer sidewalls of the insulative tiers. The conductive rails increase the amount of conductive material that may otherwise be in the conductive tiers, which may enable the conductive material to exhibit a lower electrical resistance, improving operational performance of the electronic devices.
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公开(公告)号:US20250113487A1
公开(公告)日:2025-04-03
申请号:US18978230
申请日:2024-12-12
Applicant: Micron Technology, Inc.
Inventor: Collin Howder , M. Jared Barclay , Bhavesh Bhartia , Chet E. Carter , John D. Hopkins , Andrew Li , Haoyu Li , Alyssa N. Scarbrough , Grady S. Waldo
Abstract: Integrated circuitry comprising a memory array comprises strings of memory cells comprising laterally-spaced memory blocks individually comprising a first vertical stack comprising alternating insulative tiers and conductive tiers above a conductor tier. Strings of memory cells comprise channel-material strings that extend through the insulative tiers and the conductive tiers. The channel-material strings directly electrically couple with conductor material of the conductor tier. The conductive tiers individually comprise a horizontally-elongated conductive line. A second vertical stack is aside the first vertical stack. The second vertical stack comprises an upper portion and a lower portion. The upper portion comprises vertically-alternating first insulating tiers and second insulating tiers that are of different insulative compositions relative one another. The lower portion comprises a horizontal line above the conductor tier that runs parallel with the laterally-spaced memory blocks in the first vertical stack. Other embodiments, including method, are disclosed.
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