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公开(公告)号:US20250006499A1
公开(公告)日:2025-01-02
申请号:US18823999
申请日:2024-09-04
Applicant: Applied Materials, Inc.
Inventor: Srinivas Gandikota , Yixiong Yang , Steven C.H. Hung , Tianyi Huang , Seshadri Ganguli
IPC: H01L21/28 , H01L21/324 , H01L21/8238
Abstract: Methods of manufacturing and processing semiconductor devices (i.e., electronic devices) are described. Embodiments of the disclosure advantageously provide electronic devices which comprise an integrated dipole region to meet reduced thickness and lower thermal budget requirements. The electronic devices described herein comprise a source region, a drain region, and a channel separating the source region and the drain region, and a dipole region having an interfacial layer, a metal film substantially free of non-metal atoms on the interfacial layer, and a high-κ dielectric layer on the metal film. In some embodiments, the dipole region of the electronic devices comprises an interfacial layer, a high-κ dielectric layer on the interfacial layer, and a metal film on the high-κ dielectric layer. In some embodiments, the methods comprise annealing the substrate to drive particles of metal from the metal film into one or more of the interfacial layer or the high-κ dielectric layer.
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公开(公告)号:US11894233B2
公开(公告)日:2024-02-06
申请号:US17955996
申请日:2022-09-29
Applicant: Applied Materials, Inc.
Inventor: Yixiong Yang , Wei V. Tang , Seshadri Ganguli , Sang Ho Yu , Feng Q. Liu , Jeffrey W. Anthis , David Thompson , Jacqueline S. Wrench , Naomi Yoshida
IPC: H01L21/285 , C23C16/455 , C23C16/18 , H01L23/532 , C23C16/04
CPC classification number: H01L21/28562 , C23C16/04 , C23C16/18 , C23C16/45553 , H01L21/28518 , H01L21/28568 , H01L23/53242
Abstract: Methods of depositing platinum group metal films of high purity, low resistivity, and good conformality are described. A platinum group metal film is formed in the absence of an oxidant. The platinum group metal film is selectively deposited on a conductive substrate at a temperature less than 200° C. by using an organic platinum group metal precursor.
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公开(公告)号:US20240026529A1
公开(公告)日:2024-01-25
申请号:US18222589
申请日:2023-07-17
Applicant: Applied Materials, Inc.
Inventor: Srinivas Gandikota , Tuerxun Ailihumaer , Yixiong Yang , Seshadri Ganguli , Yogesh Sharma
CPC classification number: C23C16/08 , C23C16/0272 , C23C16/045
Abstract: Embodiments of the disclosure provide conformally deposited molybdenum films having reduced resistivity and methods of forming the same. The methods include converting an amorphous silicon layer to a metal layer by thermally soaking the amorphous silicon layer comprising silicon atoms in the presence of a metal compound selected from the group consisting of a molybdenum compound and a tungsten compound until at least a portion of the silicon atoms in the amorphous silicon layer are replaced by metal atoms selected from the group consisting of molybdenum atoms and tungsten atoms. The methods include conformally depositing a molybdenum film on the metal layer.
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公开(公告)号:US20230420486A1
公开(公告)日:2023-12-28
申请号:US18208710
申请日:2023-06-12
Applicant: Applied Materials, Inc.
Inventor: Geetika Bajaj , Shonal Chouksey , Amit Kumar Roy , Darshan Thakare , Seshadri Ganguli , Gopi Chandran Ramachandran , Srinivas Gandikota , Jayeeta Sen
IPC: H01L21/02
CPC classification number: H01L28/40 , H01L21/02271
Abstract: Exemplary methods of semiconductor processing may include providing a first precursor to a semiconductor processing chamber. A substrate may be disposed within a processing region of the semiconductor processing chamber. The first precursor may include one or more of niobium, tantalum, or titanium. The methods may include contacting the substrate with the first precursor. The contacting may form a layer of metal on the substrate. The methods may include providing a second precursor to a semiconductor processing chamber. The second precursor comprises oxygen. The methods may include contacting the layer of metal with the second precursor. The contacting may form a layer of metal oxide on the substrate. The layer of metal oxide may be one or more of niobium oxide, tantalum oxide, or titanium oxide.
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公开(公告)号:US20230268414A1
公开(公告)日:2023-08-24
申请号:US17863647
申请日:2022-07-13
Applicant: Applied Materials, Inc.
Inventor: Michael Haverty , Avgerinos V. Gelatos , Gaurav Thareja , Seshadri Ganguli
IPC: H01L29/45 , H01L21/285
CPC classification number: H01L29/456 , H01L21/28518
Abstract: Embodiments of the disclosure provide methods and electronic devices comprising a work function layer comprising a material that forms a weak silicide. The electronic devices comprise a silicon layer with the work function layer thereon and a metal contact on the work function layer.
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公开(公告)号:US11587936B2
公开(公告)日:2023-02-21
申请号:US17335287
申请日:2021-06-01
Applicant: Applied Materials, Inc.
Inventor: Yixiong Yang , Jacqueline S. Wrench , Yong Yang , Srinivas Gandikota , Annamalai Lakshmanan , Joung Joo Lee , Feihu Wang , Seshadri Ganguli
IPC: H01L27/108 , H01L21/285 , C23C16/455 , H01L21/02 , H01L21/8234
Abstract: Methods for DRAM device with a buried word line are described. The method includes forming a metal cap layer and a molybdenum conductor layer in a feature on a substrate. The method includes depositing the metal cap layer on the substrate by physical vapor deposition (PVD) and depositing the molybdenum conductor layer by atomic layer deposition (ALD) on the metal cap layer.
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公开(公告)号:US11384429B2
公开(公告)日:2022-07-12
申请号:US15598687
申请日:2017-05-18
Applicant: Applied Materials, Inc.
Inventor: Sang-Ho Yu , Kevin Moraes , Seshadri Ganguli , Hua Chung , See-Eng Phan
IPC: C23C16/16 , H01L21/324 , H01L21/768 , C23C16/02 , C23C16/18 , H01L21/02 , H01L21/285 , C23C16/455 , C23C16/50
Abstract: Embodiments of the invention provide processes to selectively form a cobalt layer on a copper surface over exposed dielectric surfaces. In one embodiment, a method for capping a copper surface on a substrate is provided which includes positioning a substrate within a processing chamber, wherein the substrate contains a contaminated copper surface and a dielectric surface, exposing the contaminated copper surface to a reducing agent while forming a copper surface during a pre-treatment process, exposing the substrate to a cobalt precursor gas to selectively form a cobalt capping layer over the copper surface while leaving exposed the dielectric surface during a vapor deposition process, and depositing a dielectric barrier layer over the cobalt capping layer and the dielectric surface. In another embodiment, a deposition-treatment cycle includes performing the vapor deposition process and subsequently a post-treatment process, which deposition-treatment cycle may be repeated to form multiple cobalt capping layers.
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公开(公告)号:US20220068935A1
公开(公告)日:2022-03-03
申请号:US17522448
申请日:2021-11-09
Applicant: Applied Materials, Inc.
Inventor: Priyadarshi Panda , Seshadri Ganguli , Sang Ho Yu , Sung-Kwan Kang , Gill Yong Lee , Sanjay Natarajan , Rajib Lochan Swain , Jorge Pablo Fernandez
IPC: H01L27/108
Abstract: Methods of forming memory devices are described. Some embodiments of the disclosure utilize a low temperature anneal process to reduce bottom voids and seams in low melting point, low resistance metal buried word lines. Some embodiments of the disclosure utilize a high density dielectric cap during a high temperature anneal process to reduce bottom voids in buried word lines.
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公开(公告)号:US20210214842A1
公开(公告)日:2021-07-15
申请号:US17140419
申请日:2021-01-04
Applicant: Applied Materials, Inc.
Inventor: Byunghoon Yoon , Seshadri Ganguli , Xi Cen
IPC: C23C16/02 , C23C16/04 , C23C16/18 , C23C16/455 , H01L21/768
Abstract: Methods of depositing a metal film with high purity are discussed. A catalyst enhanced CVD process is utilized comprising an alkyl halide catalyst soak and a precursor exposure. The precursor comprises a metal precursor having the general formula (I): M-L1(L2)y, wherein M is a metal, L1 is an aromatic ligand, L2 is an aliphatic ligand, and y is a number in the range of from 2 to 8 to form a metal film on the substrate surface, wherein the L2 comprises 1,5-hexdiene, 1,4-hexadiene, and less than 5% of 1,3-hexadiene. Selective deposition of a metal film with high purity on a metal surface over a dielectric surface is described.
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公开(公告)号:US20200286897A1
公开(公告)日:2020-09-10
申请号:US16804226
申请日:2020-02-28
Applicant: Applied Materials, Inc.
Inventor: Priyadarshi Panda , Seshadri Ganguli , Sang Ho Yu , Sung-Kwan Kang , Gill Yong Lee , Sanjay Natarajan , Rajib Lochan Swain , Jorge Pablo Fernandez
IPC: H01L27/108
Abstract: Methods of forming memory devices are described. Some embodiments of the disclosure utilize a low temperature anneal process to reduce bottom voids and seams in low melting point, low resistance metal buried word lines. Some embodiments of the disclosure utilize a high density dielectric cap during a high temperature anneal process to reduce bottom voids in buried word lines.
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