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公开(公告)号:US11871582B2
公开(公告)日:2024-01-09
申请号:US17589310
申请日:2022-01-31
Applicant: Micron Technology, Inc.
Inventor: Hung-Wei Liu , Vassil N. Antonov , Ashonita A. Chavan , Darwin Franseda Fan , Jeffery B. Hull , Anish A. Khandekar , Masihhur R. Laskar , Albert Liao , Xue-Feng Lin , Manuj Nahar , Irina V. Vasilyeva
CPC classification number: H10B53/20 , H01L21/223 , H01L29/1037 , H01L29/66666 , H01L29/7827 , H10B51/20 , H10B51/30 , H10B53/30
Abstract: A method of forming a vertical transistor comprising a top source/drain region, a bottom source/drain region, a channel region vertically between the top and bottom source/drain regions, and a gate operatively laterally-adjacent the channel region comprises, in multiple time-spaced microwave annealing steps, microwave annealing at least the channel region. The multiple time-spaced microwave annealing steps reduce average concentration of elemental-form H in the channel region from what it was before start of the multiple time-spaced microwave annealing steps. The reduced average concentration of elemental-form H is 0.005 to less than 1 atomic percent. Structure embodiments are disclosed.
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公开(公告)号:US11264395B1
公开(公告)日:2022-03-01
申请号:US17027046
申请日:2020-09-21
Applicant: Micron Technology, Inc.
Inventor: Hung-Wei Liu , Vassil N. Antonov , Ashonita A. Chavan , Darwin Franseda Fan , Jeffery B. Hull , Anish A. Khandekar , Masihhur R. Laskar , Albert Liao , Xue-Feng Lin , Manuj Nahar , Irina V. Vasilyeva
IPC: H01L27/11514 , H01L27/11507 , H01L29/78 , H01L29/66 , H01L27/11597 , H01L27/1159 , H01L29/10 , H01L21/223
Abstract: A method of forming a vertical transistor comprising a top source/drain region, a bottom source/drain region, a channel region vertically between the top and bottom source/drain regions, and a gate operatively laterally-adjacent the channel region comprises, in multiple time-spaced microwave annealing steps, microwave annealing at least the channel region. The multiple time-spaced microwave annealing steps reduce average concentration of elemental-form H in the channel region from what it was before start of the multiple time-spaced microwave annealing steps. The reduced average concentration of elemental-form H is 0.005 to less than 1 atomic percent. Structure embodiments are disclosed.
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公开(公告)号:US10923593B1
公开(公告)日:2021-02-16
申请号:US16536479
申请日:2019-08-09
Applicant: Micron Technology, Inc.
Inventor: Manuj Nahar , Vassil N. Antonov , Darwin Franseda Fan , Ali Moballegh
IPC: H01L29/78 , H01L27/108 , H01L29/66 , H01L21/02 , H01L29/04
Abstract: A transistor comprises a top source/drain region, a bottom source/drain region, a channel region vertically between the top and bottom source/drain regions, and a gate operatively laterally-adjacent the channel region. An upper material is directly above a lower material. The upper material is in at least one of the top source/drain region, the bottom source/drain region, and the channel region. The lower material is in at least one of the top source/drain region, the bottom source/drain region, and the channel region. The upper material comprises 1 atomic percent to 10 atomic percent elemental-form H and 0 total atomic percent to less than 0.1 total atomic percent of one or more noble elements. The lower material comprises 0 atomic percent to less than 1 atomic percent elemental-form H and 0.1 total atomic percent to 10 total atomic percent of one or more noble elements. Other embodiments, including method, are disclosed.
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公开(公告)号:US20200243528A1
公开(公告)日:2020-07-30
申请号:US16258987
申请日:2019-01-28
Applicant: Micron Technology, Inc.
Inventor: Devesh Dadhich Shreeram , Sanjeev Sapra , Masihhur R. Laskar , Darwin Franseda Fan , Jerome A. Imonigie
IPC: H01L27/108
Abstract: Methods, apparatuses, and systems related to reduction of tapering on a sidewall of an opening are described. An example method includes forming a silicate material comprising a gradient borophosphosilicate glass (BPSG) stack on a semiconductor structure. The example method further includes etching a portion of the silicate material to form an opening within the silicate material having sidewalls, wherein the gradient B SPG stack comprises varying concentrations of boron and phosphorous to reduce tapering of the sidewalls in response to the etching.
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公开(公告)号:US10573721B2
公开(公告)日:2020-02-25
申请号:US15470617
申请日:2017-03-27
Applicant: Micron Technology, Inc.
Inventor: John Hopkins , Darwin Franseda Fan
IPC: H01L29/49 , H01L27/11556 , H01L21/28 , H01L29/423 , H01L29/788
Abstract: Protective dielectrics are discussed generally herein. In one or more embodiments, a three-dimensional vertical memory may include a protective dielectric material. A device may include an etch stop material, a first control gate (CG) over the etch stop material, a first CG recess adjacent the first CG, a trench adjacent the first CG recess, and an at least partially oxidized polysilicon on at least a portion of the etch stop material. The at least partially oxidized polysilicon may line a sidewall of the trench and may line the first CG recess.
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公开(公告)号:US09608000B2
公开(公告)日:2017-03-28
申请号:US14722824
申请日:2015-05-27
Applicant: Micron Technology, Inc.
Inventor: John Hopkins , Darwin Franseda Fan
IPC: H01L29/788 , H01L27/11556 , H01L21/28 , H01L21/02 , H01L21/311 , H01L29/49
CPC classification number: H01L29/4916 , H01L21/28273 , H01L27/11556 , H01L29/42324 , H01L29/7883
Abstract: Protective dielectrics are discussed generally herein. In one or more embodiments, a three-dimensional vertical memory may include a protective dielectric material. A device may include an etch stop material, a first control gate (CG) over the etch stop material, a first CG recess adjacent the first CG, a trench adjacent the first CG recess, and an at least partially oxidized polysilicon on at least a portion of the etch stop material. The at least partially oxidized polysilicon may line a sidewall of the trench and may line the first CG recess.
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公开(公告)号:US20140203344A1
公开(公告)日:2014-07-24
申请号:US13748747
申请日:2013-01-24
Applicant: MICRON TECHNOLOGY, INC.
Inventor: John Hopkins , Darwin Franseda Fan , Fatma Arzum Simsek-Ege , James Brighten , Aurelio Giancarlo Mauri , Srikant Jayanti
IPC: H01L29/423 , H01L29/40
CPC classification number: H01L29/7887 , H01L21/28035 , H01L21/28273 , H01L21/28282 , H01L27/11524 , H01L27/11556 , H01L27/11582 , H01L29/401 , H01L29/42324 , H01L29/518 , H01L29/66825 , H01L29/7827 , H01L29/7881 , H01L29/7889
Abstract: Three-dimensional memory cells and methods of making and using the memory cells are discussed generally herein. In one or more embodiments, a three-dimensional vertical memory can include a memory stack. Such a memory stack can include memory cells and a dielectric between adjacent memory cells, each memory cell including a control gate and a charge storage structure. The memory cell can further include a barrier material between the charge storage structure and the control gate, the charge storage structure and the barrier material having a substantially equal dimension.
Abstract translation: 三维存储器单元以及制造和使用存储器单元的方法一般在此讨论。 在一个或多个实施例中,三维垂直存储器可以包括存储器堆栈。 这样的存储器堆可以包括存储器单元和相邻存储单元之间的电介质,每个存储单元包括控制栅极和电荷存储结构。 存储单元还可以包括电荷存储结构和控制栅极之间的阻挡材料,电荷存储结构和阻挡材料具有基本相等的尺寸。
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公开(公告)号:US20250142909A1
公开(公告)日:2025-05-01
申请号:US19008075
申请日:2025-01-02
Applicant: Micron Technology, Inc.
Inventor: Fatma Arzum Simsek-Ege , Masihhur R. Laskar , Nicholas R. Tapias , Darwin Franseda Fan , Manuj Nahar
Abstract: Methods, systems, and devices for single-crystal transistors for memory devices are described. In some examples, a cavity may be formed through at least a portion of one or more dielectric materials, which may be deposited above a deck of memory cells. The cavity may include a taper, such as a taper toward a point, or a taper having an included angle that is within a range, or a taper from a cross-sectional area to some fraction of the cross-sectional area, among other examples. A semiconductor material may be deposited in the cavity and above the one or more dielectric materials, and formed in a single crystalline arrangement based on heating and cooling the deposited semiconductor material. One or more portions of a transistor, such as a channel portion of a transistor, may be formed at least in part by doping the single crystalline arrangement of the semiconductor material.
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公开(公告)号:US12224310B2
公开(公告)日:2025-02-11
申请号:US18531525
申请日:2023-12-06
Applicant: Micron Technology, Inc.
Inventor: Fatma Arzum Simsek-Ege , Masihhur R. Laskar , Nicholas R. Tapias , Darwin Franseda Fan , Manuj Nahar
Abstract: Methods, systems, and devices for single-crystal transistors for memory devices are described. In some examples, a cavity may be formed through at least a portion of one or more dielectric materials, which may be deposited above a deck of memory cells. The cavity may include a taper, such as a taper toward a point, or a taper having an included angle that is within a range, or a taper from a cross-sectional area to some fraction of the cross-sectional area, among other examples. A semiconductor material may be deposited in the cavity and above the one or more dielectric materials, and formed in a single crystalline arrangement based on heating and cooling the deposited semiconductor material. One or more portions of a transistor, such as a channel portion of a transistor, may be formed at least in part by doping the single crystalline arrangement of the semiconductor material.
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公开(公告)号:US20240234482A9
公开(公告)日:2024-07-11
申请号:US18047978
申请日:2022-10-19
Applicant: Micron Technology, Inc.
Inventor: Sanket S. Kelkar , Michael Mutch , Luca Fumagalli , Hisham Abdussamad Abbas , Brenda D. Kraus , Dojun Kim , Christopher W. Petz , Darwin Franseda Fan
IPC: H01L49/02 , H01G4/008 , H01G4/12 , H01L27/108
CPC classification number: H01L28/75 , H01G4/008 , H01G4/1218 , H01L27/10814 , H01L27/10852
Abstract: A microelectronic device comprises an access device comprising a source region and a drain region spaced from the source region, an insulative material vertically adjacent to the access device, and a capacitor within the insulative material and in electrical communication with the access device. The capacitor comprises a material comprising silicon oxynitride or titanium silicon nitride over surfaces of the insulative material, a first electrode comprising titanium nitride on the material, a dielectric material over the first electrode, and a second electrode on the dielectric material. Related methods of forming the microelectronic device and an electronic system including the microelectronic devices are also described.
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