Patents by Inventor Li-Wei Feng
Li-Wei Feng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12274048Abstract: A dynamic random access memory device includes a substrate having a first active region, a first isolation region, a second active region, and a second isolation region arranged in order along a first direction. A first bit line is disposed on the first active region and in direct contact with the first active region. A second bit line is disposed on the second isolation region. An insulating layer is disposed between and separate the second bit line and the second isolation region. A storage node contact structure is disposed between the first bit line and the second bit line and is in direct contact with a top surface of the second active region, a sidewall of the first isolation region, and a sidewall of the second isolation region.Type: GrantFiled: May 18, 2022Date of Patent: April 8, 2025Assignee: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Li-Wei Feng, Janbo Zhang
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Patent number: 12200923Abstract: The present disclosure relates to a method of fabricating a semiconductor device, the semiconductor device includes a substrate, a plurality of gate structures, a plurality of isolation fins, and at least one bit line. The gate structures are disposed in the substrate, with each of the gate structures being parallel with each other and extending along a first direction. The isolation fins are disposed on the substrate, with each of the isolation fins being parallel with each other and extending along the first direction, over each of the gate structures respectively. The at least one bit line is disposed on the substrate to extend along a second direction being perpendicular to the first direction. The at least one bit line comprises a plurality of pins extending toward the substrate, and each of the pins is alternately arranged with each of the isolation fins along the second direction.Type: GrantFiled: July 10, 2023Date of Patent: January 14, 2025Assignee: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Li-Wei Feng, Yu-Cheng Tung
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Publication number: 20240422958Abstract: A semiconductor device which includes a substrate, storage node pads, a capacitor structure and a supporting structure, and a forming method thereof are disclosed. The substrate includes a cell region and a periphery region. The storage node pads are disposed on the substrate and located in the cell region. The capacitor structure is disposed on the storage node pads and includes bottom electrodes in contact with the storage node pads. The supporting structure is disposed on the storage node pads and interleaved among the bottom electrodes. The supporting structure includes a first supporting layer and a second supporting layer sequentially from bottom to top. The second supporting layer includes a first thickness and a second thickness, wherein the second thickness is greater than the first thickness, and the second supporting layer with the second thickness is disposed between the cell region and the periphery region to provide improved structural support.Type: ApplicationFiled: August 23, 2023Publication date: December 19, 2024Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventor: Li-Wei Feng
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Publication number: 20240397703Abstract: A semiconductor device and a manufacturing method thereof are provided. The semiconductor device includes a semiconductor substrate having a cell region and a peripheral region, a first stacked structure disposed in the semiconductor substrate, and a contact structure. The semiconductor substrate includes a fin-shaped structure. The first stacked structure is disposed straddling the fin-shaped structure, extends in a horizontal direction, and disposed in the cell region and the peripheral region. The first stacked structure includes an electrically conductive layer including a first portion in the cell region and a second portion in the peripheral region, a capping layer disposed on the electrically conductive layer, and a dielectric capping layer disposed on the capping layer and the electrically conductive layer. The dielectric capping layer contacts a top surface of the second portion.Type: ApplicationFiled: July 11, 2023Publication date: November 28, 2024Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Huixian LAI, Li-Wei Feng
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Publication number: 20240363401Abstract: A contact pad structure and a manufacturing method thereof are disclosed in the present invention. The contact pad structure includes a substrate, a first dielectric layer, a second dielectric layer, first contact pads, an etching stop layer, a first void, and a second void. The first contact pads are disposed on a first region of the substrate. The first dielectric layer is disposed on the substrate, covers the first contact pads, and includes a recess located between two adjacent first contact pads. The etching stop layer is disposed on the first dielectric layer and partially located in the recess. The second dielectric layer is disposed on the etching stop layer and partially located in the recess. The first void is disposed in the etching stop layer and located in the recess. The second void is disposed in the second dielectric layer and located in the recess.Type: ApplicationFiled: May 24, 2023Publication date: October 31, 2024Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Li-Wei Feng
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Patent number: 12114487Abstract: The present disclosure relates to a semiconductor memory device including a substrate, a plurality of buried word lines, a plurality of bit lines, and a plurality isolation fins. The substrate includes a plurality of active areas and a shallow trench isolation. The buried word lines are disposed in the substrate. The bit lines are disposed on the substrate. The isolation fins are disposed on the substrate, over each of the buried word lines respectively, wherein a portion of the isolation fins is disposed under the bit lines and overlapped with the bit lines.Type: GrantFiled: February 13, 2023Date of Patent: October 8, 2024Assignee: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Li-Wei Feng, Yu-Cheng Tung
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Publication number: 20240298436Abstract: A memory device and a manufacturing method thereof are disclosed in the present invention. The memory device includes a semiconductor substrate, bit line structures, isolation structures, a storage node contact structure, and first voids. The bit line structures, the isolation structures, and the storage node contact structure are disposed on the semiconductor substrate. Each bit line structure extends in a first direction, and the bit line structures are arranged in a second direction. The isolation structures are located between the bit line structures adjacent to one another. The storage node contact structure is located between two adjacent bit line structures and located between two adjacent isolation structures in the first direction. The storage node contact structure includes four corner portions. The first voids are disposed in the storage node contact structure, and the first voids are located in at least two of the four corner portions.Type: ApplicationFiled: March 31, 2023Publication date: September 5, 2024Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Li-Wei Feng, Yu-Cheng Tung
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Patent number: 11910595Abstract: The invention discloses a semiconductor memory device, which is characterized by comprising a substrate defining a cell region and an adjacent periphery region, a plurality of bit lines are arranged on the substrate and arranged along a first direction, each bit line comprises a conductive part, and the bit line comprises four sidewalls, and a spacer surrounds the four sidewalls of the bit line, the spacer comprises two short spacers covering two ends of the conductive part, two long spacers covering the two long sides of the conductive part, and a plurality of storage node contact isolations located between any two adjacent bit lines, at least a part of the storage node contact isolations cover directly above the spacers. The structure of the invention can improve the electrical isolation effect, preferably avoid leakage current and improve the quality of components.Type: GrantFiled: August 23, 2021Date of Patent: February 20, 2024Assignee: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Yu-Cheng Tung, Janbo Zhang, Shih-Han Hung, Li-Wei Feng
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Patent number: 11877433Abstract: The present invention provides a storage node contact structure of a memory device comprising a substrate having a dielectric layer comprising a recess, a first tungsten metal layer, and an adhesive layer on the first tungsten metal layer and a second tungsten metal layer on the adhesive layer, wherein the second tungsten metal layer is formed by a physical vapor deposition (PVD).Type: GrantFiled: July 16, 2020Date of Patent: January 16, 2024Assignees: UNITED MICROELECTRONICS CORP., Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Pin-Hong Chen, Tsun-Min Cheng, Chih-Chieh Tsai, Tzu-Chieh Chen, Kai-Jiun Chang, Chia-Chen Wu, Yi-An Huang, Yi-Wei Chen, Hsin-Fu Huang, Chi-Mao Hsu, Li-Wei Feng, Ying-Chiao Wang, Chung-Yen Feng
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Publication number: 20230354583Abstract: The present disclosure relates to a method of fabricating a semiconductor device, the semiconductor device includes a substrate, a plurality of gate structures, a plurality of isolation fins, and at least one bit line. The gate structures are disposed in the substrate, with each of the gate structures being parallel with each other and extending along a first direction. The isolation fins are disposed on the substrate, with each of the isolation fins being parallel with each other and extending along the first direction, over each of the gate structures respectively. The at least one bit line is disposed on the substrate to extend along a second direction being perpendicular to the first direction. The at least one bit line comprises a plurality of pins extending toward the substrate, and each of the pins is alternately arranged with each of the isolation fins along the second direction.Type: ApplicationFiled: July 10, 2023Publication date: November 2, 2023Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Li-Wei Feng, Yu-Cheng Tung
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Publication number: 20230345724Abstract: The present disclosure provides a semiconductor memory structure and a method of fabricating the same includes a substrate; at least one first groove disposed on an upper surface of the substrate, with an edge corner of a top portion of the first groove being arc-shaped; a first dielectric layer disposed along an inner wall of the first groove; a second dielectric layer formed on a surface of the first dielectric layer, to fill up the first groove, wherein a top portion of the first dielectric layer is lower than a top portion of the second dielectric layer and an upper surface of the substrate, and a first recess is formed between the second dielectric layer and the substrate; and a metal filling layer disposed in the first recess, to fill in a partial space of the first recess.Type: ApplicationFiled: December 8, 2022Publication date: October 26, 2023Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Huixian LAI, Li-Wei Feng
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Publication number: 20230309291Abstract: A dynamic random access memory device includes a substrate having a first active region, a first isolation region, a second active region, and a second isolation region arranged in order along a first direction. A first bit line is disposed on the first active region and in direct contact with the first active region. A second bit line is disposed on the second isolation region. An insulating layer is disposed between and separate the second bit line and the second isolation region. A storage node contact structure is disposed between the first bit line and the second bit line and is in direct contact with a top surface of the second active region, a sidewall of the first isolation region, and a sidewall of the second isolation region.Type: ApplicationFiled: May 18, 2022Publication date: September 28, 2023Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Li-Wei Feng, Janbo Zhang
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Patent number: 11765881Abstract: A semiconductor structure with a capacitor landing pad includes a substrate. A capacitor contact plug is disposed on the substrate. A capacitor landing pad contacts and electrically connects the capacitor contact plug. A bit line is disposed on the substrate. A dielectric layer surrounds the capacitor landing pad. The dielectric layer includes a bottom surface lower than a top surface of the bit line.Type: GrantFiled: December 7, 2022Date of Patent: September 19, 2023Assignees: UNITED MICROELECTRONICS CORP., Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Li-Wei Feng, Shih-Fang Tzou, Chien-Ting Ho, Ying-Chiao Wang, Yu-Ching Chen, Hui-Ling Chuang, Kuei-Hsuan Yu
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Patent number: 11744062Abstract: The present disclosure relates to a semiconductor device and a fabricating method thereof, the semiconductor device includes a substrate, a plurality of gate structures, a plurality of isolation fins, and at least one bit line. The gate structures are disposed in the substrate, with each of the gate structures being parallel with each other and extending along a first direction. The isolation fins are disposed on the substrate, with each of the isolation fins being parallel with each other and extending along the first direction, over each of the gate structures respectively. The at least one bit line is disposed on the substrate to extend along a second direction being perpendicular to the first direction. The at least one bit line comprises a plurality of pins extending toward the substrate, and each of the pins is alternately arranged with each of the isolation fins along the second direction.Type: GrantFiled: June 2, 2021Date of Patent: August 29, 2023Assignee: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Li-Wei Feng, Yu-Cheng Tung
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Patent number: 11737257Abstract: The present invention provides a semiconductor device, the semiconductor device includes a substrate, at least one bit line is disposed on the substrate, a rounding hard mask is disposed on the bit line, and the rounding hard mask defines a top portion and a bottom portion, and at least one storage node contact plug, located adjacent to the bit line, the storage node contact structure plug includes at least one conductive layer, from a cross-sectional view, the storage node contact plug defines a width X1 and a width X2. The width X1 is aligned with the top portion of the rounding hard mask in a horizontal direction, and the width X2 is aligned with the bottom portion of the rounding hard mask in the horizontal direction, X1 is greater than or equal to X2.Type: GrantFiled: March 8, 2021Date of Patent: August 22, 2023Assignees: UNITED MICROELECTRONICS CORP., Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Li-Wei Feng, Yu-Hsiang Hung, Ming-Te Wei
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Patent number: 11706911Abstract: The present disclosure relates to a semiconductor memory device and a method of fabricating the same, and the semiconductor memory device includes a substrate, an active structure and a shallow trench isolation. The active structure is disposed within the substrate and includes a first active region and a second active region. The first active region includes a plurality of active region units, and the second active region is disposed at an outer side of the first active region to directly connect to a portion of the active region units. The second active region includes a plurality of first openings disposed an edge of the second active region. The shallow trench isolation is disposed within the substrate, to surround the active structure.Type: GrantFiled: July 5, 2022Date of Patent: July 18, 2023Assignee: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Enping Cheng, Li-Wei Feng, Yu-Cheng Tung
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Publication number: 20230200057Abstract: The present disclosure relates to a semiconductor memory device including a substrate, a plurality of buried word lines, a plurality of bit lines, and a plurality isolation fins. The substrate includes a plurality of active areas and a shallow trench isolation. The buried word lines are disposed in the substrate. The bit lines are disposed on the substrate. The isolation fins are disposed on the substrate, over each of the buried word lines respectively, wherein a portion of the isolation fins is disposed under the bit lines and overlapped with the bit lines.Type: ApplicationFiled: February 13, 2023Publication date: June 22, 2023Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Li-Wei Feng, Yu-Cheng Tung
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Publication number: 20230200056Abstract: The present disclosure relates to a semiconductor memory device and a fabricating method thereof, includes a substrate, a plurality of gate structures, a plurality of isolation fins, at least one bit line, and a plug. The gate structures are disposed in the substrate, being parallel with each other along a first direction. The isolation fins are disposed on the substrate, parallel with each other and extending along the first direction, over each of the gate structures respectively. The bit line is disposed on the substrate to extend along a second direction being perpendicular to the first direction. The bit line includes a plurality of pins extending toward the substrate, being alternately arranged with the isolation fins along the second direction. The plug is disposed on the substrate, being alternately with the bit line in the first direction.Type: ApplicationFiled: February 13, 2023Publication date: June 22, 2023Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Li-Wei Feng, Yu-Cheng Tung
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Patent number: 11676994Abstract: The present invention provides a manufacturing method of a semiconductor device and a semiconductor device. A semiconductor device is provided, the semiconductor device includes a substrate, a stacked structure disposed on the substrate, the substrate comprises a cell array region, a peripheral circuit region and a middle region between the cell array region and the peripheral circuit region, the stacked structure comprises a first support layer, a first trench located in the middle region, a second support layer located on an upper surface of the stacked structure, wherein parts of the second support layer is disposed in the first trench, a portion of a sidewall of the first support layer directly contacts a portion of a sidewall of the second support layer, and a capacitor structure located in the cell array region.Type: GrantFiled: May 29, 2022Date of Patent: June 13, 2023Assignee: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Li-Wei Feng, Yu-Cheng Tung
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Publication number: 20230097175Abstract: A semiconductor structure with a capacitor landing pad includes a substrate. A capacitor contact plug is disposed on the substrate. A capacitor landing pad contacts and electrically connects the capacitor contact plug. A bit line is disposed on the substrate. A dielectric layer surrounds the capacitor landing pad. The dielectric layer includes a bottom surface lower than a top surface of the bit line.Type: ApplicationFiled: December 7, 2022Publication date: March 30, 2023Applicants: UNITED MICROELECTRONICS CORP., Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Li-Wei Feng, Shih-Fang Tzou, Chien-Ting Ho, Ying-Chiao Wang, Yu-Ching Chen, Hui-Ling Chuang, Kuei-Hsuan Yu