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公开(公告)号:US20230031891A1
公开(公告)日:2023-02-02
申请号:US17391377
申请日:2021-08-02
Applicant: Micron Technology, Inc.
Inventor: Venkatakrishnan Sriraman , Dae Hong Eom , Ramanathan Gandhi , Donghua Li , Ashok Kumar Muthukumaran
IPC: H01L27/11556 , H01L29/788 , H01L29/66 , H01L27/11582 , H01L29/792
Abstract: A memory cell comprises channel material, charge-passage material, programmable material, a charge-blocking region, and a control gate. The programmable material comprises at least two regions comprising SiNx having a region comprising SiOy therebetween, where “x” is 0.5 to 3.0 and “y” is 1.0 to 3.0. Methods are disclosed.
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32.
公开(公告)号:US20220254896A1
公开(公告)日:2022-08-11
申请号:US17661187
申请日:2022-04-28
Applicant: Micron Technology, Inc.
Inventor: Durai Vishak Nirmal Ramaswamy , Ramanathan Gandhi , Scott E. Sills
IPC: H01L29/45 , H01L29/786 , H01L29/66 , H01L29/423
Abstract: A semiconductor device is disclosed. The semiconductor device includes a transistor including a source contact, a drain contact, and a channel region including an oxide semiconductor material as the channel material. At least one of the drain contact or the source contact includes a conductive material, such as ruthenium, to reduce the Schottky effects at the interface with the channel material.
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33.
公开(公告)号:US11335788B2
公开(公告)日:2022-05-17
申请号:US16118064
申请日:2018-08-30
Applicant: Micron Technology, Inc.
Inventor: Durai Vishak Nirmal Ramaswamy , Ramanathan Gandhi , Scott E. Sills
IPC: H01L27/108 , H01L21/8254 , H01L49/02 , H01L29/45 , H01L29/786 , H01L29/66 , H01L29/423 , H01L29/78
Abstract: A semiconductor device is disclosed. The semiconductor device includes a transistor including a source contact, a drain contact, and a channel region including an oxide semiconductor material as the channel material. At least one of the drain contact or the source contact includes a conductive material, such as ruthenium, to reduce the Schottky effects at the interface with the channel material.
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公开(公告)号:US20210217863A1
公开(公告)日:2021-07-15
申请号:US17194971
申请日:2021-03-08
Applicant: Micron Technology, Inc.
Inventor: Ramanathan Gandhi
IPC: H01L29/423 , H01L29/49 , H01L27/11565 , H01L27/11582
Abstract: Some embodiments include a memory cell having a conductive gate comprising ruthenium. A charge-blocking region is adjacent the conductive gate, a charge-storage region is adjacent the charge-blocking region, a tunneling material is adjacent the charge-storage region, and a channel material is adjacent the tunneling material. Some embodiments include an assembly having a vertical stack of alternating insulative levels and wordline levels. The wordline levels contain conductive wordline material which includes ruthenium. Semiconductor material extends through the stack as a channel structure. Charge-storage regions are between the conductive wordline material and the channel structure. Charge-blocking regions are between the charge-storage regions and the conductive wordline material. Some embodiments include methods of forming integrated assemblies.
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公开(公告)号:US10964793B2
公开(公告)日:2021-03-30
申请号:US16383964
申请日:2019-04-15
Applicant: Micron Technology, Inc.
Inventor: Ramanathan Gandhi
IPC: H01L29/423 , H01L29/49 , H01L27/11565 , H01L27/11582
Abstract: Some embodiments include a memory cell having a conductive gate comprising ruthenium. A charge-blocking region is adjacent the conductive gate, a charge-storage region is adjacent the charge-blocking region, a tunneling material is adjacent the charge-storage region, and a channel material is adjacent the tunneling material. Some embodiments include an assembly having a vertical stack of alternating insulative levels and wordline levels. The wordline levels contain conductive wordline material which includes ruthenium. Semiconductor material extends through the stack as a channel structure. Charge-storage regions are between the conductive wordline material and the channel structure. Charge-blocking regions are between the charge-storage regions and the conductive wordline material. Some embodiments include methods of forming integrated assemblies.
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公开(公告)号:US20200227423A1
公开(公告)日:2020-07-16
申请号:US16834666
申请日:2020-03-30
Applicant: Micron Technology, Inc.
Inventor: Ashonita A. Chavan , Ramanathan Gandhi , Beth R. Cook , Durai Vishak Nirmal Ramaswamy
IPC: H01L27/11507 , H01L21/28 , H01L29/51 , H01L29/78 , H01L29/66 , H01L27/1159 , H01L49/02
Abstract: Some embodiments include a ferroelectric device comprising ferroelectric material adjacent an electrode. The device includes a semiconductor material-containing region along a surface of the ferroelectric material nearest the electrode. The semiconductor material-containing region has a higher concentration of semiconductor material than a remainder of the ferroelectric material. The device may be, for example, a transistor or a capacitor. The device may be incorporated into a memory array. Some embodiments include a method of forming a ferroelectric capacitor. An oxide-containing ferroelectric material is formed over a first electrode. A second electrode is formed over the oxide-containing ferroelectric material. A semiconductor material-enriched portion of the oxide-containing ferroelectric material is formed adjacent the second electrode.
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公开(公告)号:US20170345831A1
公开(公告)日:2017-11-30
申请号:US15164749
申请日:2016-05-25
Applicant: Micron Technology, Inc.
Inventor: Ashonita A. Chavan , Ramanathan Gandhi , Beth R. Cook , Durai Vishak Nirmal Ramaswamy
IPC: H01L27/11507 , H01L49/02
Abstract: Some embodiments include a ferroelectric device comprising ferroelectric material adjacent an electrode. The device includes a semiconductor material-containing region along a surface of the ferroelectric material nearest the electrode. The semiconductor material-containing region has a higher concentration of semiconductor material than a remainder of the ferroelectric material. The device may be, for example, a transistor or a capacitor. The device may be incorporated into a memory array. Some embodiments include a method of forming a ferroelectric capacitor. An oxide-containing ferroelectric material is formed over a first electrode. A second electrode is formed over the oxide-containing ferroelectric material. A semiconductor material-enriched portion of the oxide-containing ferroelectric material is formed adjacent the second electrode.
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公开(公告)号:US20250159925A1
公开(公告)日:2025-05-15
申请号:US19020860
申请日:2025-01-14
Applicant: Micron Technology, Inc.
Inventor: Scott E. Sills , Ramanathan Gandhi , Durai Vishak Nirmal Ramaswamy , Yi Fang Lee , Kamal M. Karda
Abstract: A transistor comprises a first conductive contact, a heterogeneous channel comprising at least one oxide semiconductor material over the first conductive contact, a second conductive contact over the heterogeneous channel, and a gate electrode laterally neighboring the heterogeneous channel. A device, a method of forming a device, a memory device, and an electronic system are also described.
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公开(公告)号:US12199183B2
公开(公告)日:2025-01-14
申请号:US17822420
申请日:2022-08-25
Applicant: Micron Technology, Inc.
Inventor: Scott E. Sills , Ramanathan Gandhi , Durai Vishak Nirmal Ramaswamy
IPC: H01L29/786 , H01L29/66 , H10B63/00
Abstract: A method of forming a device comprises forming dielectric structures over other dielectric structures overlying conductive contact structures, the dielectric structures separated from one another by trenches and laterally extending orthogonal to the other dielectric structures and the conductive contact structures. Conductive gate structures are formed on exposed side surfaces of the dielectric structures within the trenches. Dielectric oxide structures are formed on exposed side surfaces of the conductive gate structures within the trenches. Exposed portions of the other dielectric structures are removed to form isolation structures. Semiconductive pillars are formed on exposed side surfaces of the dielectric oxide structures and the isolation structures within the trenches. The semiconductive pillars are in electrical contact with the conductive contact structures. Additional conductive contact structures are formed on upper surfaces of the semiconductive pillars. A device, a memory device, and an electronic system are also described.
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公开(公告)号:US12101946B2
公开(公告)日:2024-09-24
申请号:US18387921
申请日:2023-11-08
Applicant: Micron Technology, Inc.
Inventor: Kamal M. Karda , Yi Fang Lee , Haitao Liu , Durai Vishak Nirmal Ramaswamy , Ramanathan Gandhi , Karthik Sarpatwari , Scott E. Sills , Sameer Chhajed
IPC: H10B99/00 , H01L27/092 , H01L27/12 , H01L29/24 , H01L29/267 , H01L29/423 , H01L29/66 , H01L29/786
CPC classification number: H10B99/00 , H01L27/092 , H01L27/1207 , H01L27/1225 , H01L27/124 , H01L27/1255 , H01L27/1259 , H01L29/24 , H01L29/267 , H01L29/42392 , H01L29/66969 , H01L29/78642 , H01L29/7869
Abstract: Some embodiments include an integrated assembly having a first semiconductor material between two regions of a second semiconductor material. The second semiconductor material is a different composition than the first semiconductor material. Hydrogen is diffused within the first and second semiconductor materials. The conductivity of the second semiconductor material increases in response to the hydrogen diffused therein to thereby create a structure having the second semiconductor material as source/drain regions, and having the first semiconductor material as a channel region between the source/drain regions. A transistor gate is adjacent the channel region and is configured to induce an electric field within the channel region. Some embodiments include methods of forming integrated assemblies.
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