Patents by Inventor Fa-Shen JIANG
Fa-Shen JIANG 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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Publication number: 20250241211Abstract: The present disclosure relates to a device. The device includes a first electrode and a second electrode disposed over a substrate. A doped data storage structure is disposed between the first electrode and the second electrode. The doped data storage structure includes a dopant with a doping concentration profile having a skew normal distribution that is vertically offset from a center of the doped data storage structure.Type: ApplicationFiled: April 8, 2025Publication date: July 24, 2025Inventors: Fa-Shen Jiang, Cheng-Yuan Tsai, Hai-Dang Trinh, Hsing-Lien Lin, Bi-Shen Lee
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Patent number: 12364171Abstract: Various embodiments of the present disclosure are directed towards an integrated chip including a first conductive structure over a substrate. A data storage structure overlies the first conductive structure. The data storage structure comprises a first dielectric layer on the first conductive structure and a second dielectric layer on the first dielectric layer. The first dielectric layer comprises a dielectric material and a first dopant having a concentration that changes from a top surface of the first dielectric layer in a direction towards the first conductive structure. A second conductive structure overlies the data storage structure.Type: GrantFiled: January 3, 2024Date of Patent: July 15, 2025Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Fa-Shen Jiang, Cheng-Yuan Tsai, Hai-Dang Trinh, Hsing-Lien Lin, Hsun-Chung Kuang, Bi-Shen Lee
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Publication number: 20250228146Abstract: A memory structure includes a bottom via, a memory cell and a top via. The memory cell is disposed on the bottom via and includes a bottom electrode, a top electrode and a first storage element layer and a second storage element layer sandwiched between the bottom electrode and the top electrode. The first storage element layer is in contact with the bottom electrode, and a crystallization temperature of the first storage element layer is higher than a crystallization temperature of the second storage element layer. The top via is disposed on the memory cell and electrically connected to the top electrode.Type: ApplicationFiled: January 9, 2024Publication date: July 10, 2025Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hai-Dang Trinh, Fa-Shen JIANG, Chung-Yi Yu, Cheng-Yuan Tsai
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Patent number: 12334317Abstract: A method of depositing a layer on a semiconductor workpiece is disclosed. The method includes placing the semiconductor workpiece on a wafer chuck in a processing chamber, introducing a first precursor into the processing chamber, introducing a second precursor into the processing chamber, and while the second precursor is in the processing chamber, applying radiation to the semiconductor workpiece, whereby a surface of the semiconductor workpiece is heated. The method also includes, while the second precursor is in the processing chamber, applying a voltage bias to the wafer chuck.Type: GrantFiled: July 29, 2021Date of Patent: June 17, 2025Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hai-Dang Trinh, Hsun-Chung Kuang, Fa-Shen Jiang
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Publication number: 20250176447Abstract: Various embodiments of the present disclosure are directed towards an integrated chip including a first conductive structure over a substrate. A second conductive structure is over the first conductive structure. A data storage layer is between the first conductive structure and the second conductive structure. The data storage layer comprises a metal oxide of a first metal. The metal oxide comprises a nonmetal dopant and a metal dopant. The metal dopant is different from the first metal.Type: ApplicationFiled: January 24, 2025Publication date: May 29, 2025Inventors: Hai-Dang Trinh, Chii-Ming Wu, Hsing-Lien Lin, Tzu-Chung Tsai, Fa-Shen Jiang, Bi-Shen Lee
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Publication number: 20250151635Abstract: Various embodiments of the present disclosure are directed towards an integrated chip comprising a first electrode overlying a substrate. A first data storage layer overlies the first electrode. The first data storage layer comprises a metal oxide. The metal oxide comprises a first metal, a second metal, and a nonmetal. The first metal is different from the second metal. An atomic percentage of the nonmetal is less than an atomic percentage of the second metal. A second electrode overlies the first data storage layer.Type: ApplicationFiled: January 10, 2025Publication date: May 8, 2025Inventors: Bi-Shen Lee, Hai-Dang Trinh, Fa-Shen Jiang, Hsun-Chung Kuang
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Patent number: 12295270Abstract: The present disclosure relates to a resistive random access memory (RRAM) device. In some embodiments, the RRAM device includes a first electrode disposed over a substrate and a second electrode over the first electrode. A doped data storage structure is disposed between the first electrode and the second electrode. The doped data storage structure has a dopant with a doping concentration profile that is asymmetric over a height of the doped data storage structure and that has a maximum dopant concentration at non-zero distances from a top surface and a bottom surface of the doped data storage structure.Type: GrantFiled: October 27, 2021Date of Patent: May 6, 2025Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Fa-Shen Jiang, Cheng-Yuan Tsai, Hai-Dang Trinh, Hsing-Lien Lin, Bi-Shen Lee
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Publication number: 20250140608Abstract: An integrated circuit structure includes a plurality of transistors, an interconnect layer, and a memory stack. The interconnect layer includes an interlayer dielectric (ILD) and a conductive structure embedded in the ILD. The conductive structure includes a barrier layer and a conductive filling material surrounded by the barrier layer in a cross-sectional view. The memory stack is over the interconnect layer. The memory stack includes a bottom electrode extending across the conductive structure in the cross-sectional view, a resistance switching layer over the bottom electrode, and a top electrode over the resistance switching layer. In the cross-sectional view, an interface formed by the bottom electrode and the barrier layer has a topmost point higher than a topmost point of an interface formed by the bottom electrode and the conductive filling material.Type: ApplicationFiled: December 26, 2024Publication date: May 1, 2025Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hsia-Wei CHEN, Fu-Ting SUNG, Yu-Wen LIAO, Wen-Ting CHU, Fa-Shen JIANG, Tzu-Hsuan YEH
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Patent number: 12261197Abstract: Various embodiments of the present disclosure are directed towards a method for forming an integrated chip. The method includes forming a bottom electrode over a substrate. A dielectric layer is formed on the bottom electrode. A first top electrode layer is deposited on the dielectric layer by a first deposition process. A diffusion barrier layer is deposited on the first top electrode layer by a second deposition process different from the first deposition process. A second top electrode layer is deposited on the diffusion barrier layer by a third deposition. The third deposition process is the same as the first deposition process.Type: GrantFiled: July 19, 2022Date of Patent: March 25, 2025Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hsing-Lien Lin, Chii-Ming Wu, Hai-Dang Trinh, Fa-Shen Jiang
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Publication number: 20250081864Abstract: A semiconductor device includes a diffusion barrier structure, a bottom electrode, a top electrode, a switching layer and a capping layer. The bottom electrode is over the diffusion barrier structure. The top electrode is over the bottom electrode. The switching layer is between the bottom electrode and the top electrode, and configured to store data. The capping layer is between the switching layer and the top electrode. The diffusion barrier structure includes a multiple-layer structure. A thermal conductivity of the diffusion barrier structure is greater than approximately 20 W/mK.Type: ApplicationFiled: November 18, 2024Publication date: March 6, 2025Inventors: HAI-DANG TRINH, FA-SHEN JIANG, HSING-LIEN LIN, CHII-MING WU
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Patent number: 12239035Abstract: Various embodiments of the present disclosure are directed towards a method for forming a memory device. The method includes forming a bottom electrode over a substrate. A data storage structure is formed on the bottom electrode. The data storage structure comprises a first atomic percentage of a first dopant and a second atomic percentage of a second dopant. The first atomic percentage is different from the second atomic percentage. A top electrode is formed on the data storage structure.Type: GrantFiled: July 19, 2022Date of Patent: February 25, 2025Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hai-Dang Trinh, Chii-Ming Wu, Hsing-Lien Lin, Tzu-Chung Tsai, Fa-Shen Jiang, Bi-Shen Lee
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Patent number: 12232434Abstract: Various embodiments of the present disclosure are directed towards a method for forming an integrated chip. The method includes forming a bottom electrode over a substrate. A data storage structure is formed on the bottom electrode. The data storage structure comprises a first dopant with a first atomic percent and a second dopant with a second atomic percent. The first atomic percent is different from the second atomic percent. A top electrode is formed on the data storage structure.Type: GrantFiled: June 30, 2022Date of Patent: February 18, 2025Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Bi-Shen Lee, Hai-Dang Trinh, Fa-Shen Jiang, Hsun-Chung Kuang
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Threshold voltage-modulated memory device using variable-capacitance and methods of forming the same
Patent number: 12232336Abstract: A memory device includes a field effect transistor and a variable-capacitance capacitor. A gate structure includes a gate dielectric and an intermediate electrode. The variable-capacitance capacitor includes a lower capacitor plate comprising the intermediate electrode, an upper capacitor plate comprising a control gate electrode, and a variable-capacitance node dielectric and including an electrical-field-programmable metal oxide material. The electrical-field-programmable metal oxide material provides a variable effective dielectric constant, and a data bit may be stored as a dielectric state of the variable-capacitance node dielectric in the memory device. The variable-capacitance node dielectric provides reversible electrical field-dependent resistivity modulation, or reversible electrical field-dependent movement of metal atoms therein.Type: GrantFiled: November 10, 2023Date of Patent: February 18, 2025Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Fa-Shen Jiang, Hsia-Wei Chen, Hai-Dang Trinh, Hsun-Chung Kuang -
Patent number: 12225834Abstract: A method for forming a semiconductor structure includes following operations. A first conductive layer is formed. A first dielectric layer is formed over the first conductive layer, and the first dielectric layer includes at least one trench exposing the first conductive layer. A second conductive layer is formed in the trench. A third conductive layer is formed in the trench, and a resistivity of the third conductive layer is greater than a resistivity of the second conductive layer. A second dielectric layer is formed over the third conductive layer. A phase change material is formed over the first dielectric layer.Type: GrantFiled: June 1, 2021Date of Patent: February 11, 2025Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Hsing-Lien Lin, Hai-Dang Trinh, Fa-Shen Jiang
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Patent number: 12218005Abstract: An integrated circuit device includes an interconnect layer, a memory structure, a third conductive feature, and a fourth conductive feature. The interconnect layer includes a first conductive feature and a second conductive feature. The memory structure is over and in contact with the first conductive feature. The memory structure includes at least a resistance switching element over the first conductive feature. The third conductive feature, including a first conductive line, is over and in contact with the second conductive feature. The fourth conductive feature is over and in contact with the memory structure. The fourth conductive feature includes a second conductive line, a top surface of the first conductive line is substantially level with a top surface of the second conductive line, and a bottom surface of the first conductive line is lower than a bottommost portion of a bottom surface of the second conductive line.Type: GrantFiled: January 25, 2024Date of Patent: February 4, 2025Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hsia-Wei Chen, Fu-Ting Sung, Yu-Wen Liao, Wen-Ting Chu, Fa-Shen Jiang, Tzu-Hsuan Yeh
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Patent number: 12178147Abstract: A semiconductor device includes a diffusion barrier structure, a bottom electrode, a top electrode, a switching layer and a capping layer. The bottom electrode is over the diffusion barrier structure. The top electrode is over the bottom electrode. The switching layer is between the bottom electrode and the top electrode, and configured to store data. The capping layer is between the switching layer and the top electrode. The diffusion barrier structure includes a multiple-layer structure. A thermal conductivity of the diffusion barrier structure is greater than approximately 20 W/mK.Type: GrantFiled: October 16, 2022Date of Patent: December 24, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Hai-Dang Trinh, Fa-Shen Jiang, Hsing-Lien Lin, Chii-Ming Wu
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Publication number: 20240381793Abstract: Various embodiments of the present disclosure are directed towards an integrated chip including a bottom electrode over a substrate. A top electrode overlies the bottom electrode. A capping structure is disposed between the top electrode and the bottom electrode. The capping structure comprises a diffusion barrier layer vertically stacked with a metal layer. A switching structure is disposed between the bottom electrode and the capping structure. The switching structure comprises a dielectric layer on the bottom electrode and a first oxygen affinity layer on the dielectric layer. A first Gibbs free energy of the first oxygen affinity layer is less than a second Gibbs free energy of the dielectric layer. A first difference between the first Gibbs free energy and the second Gibbs free energy is less than ?100 kJ/mol.Type: ApplicationFiled: January 29, 2024Publication date: November 14, 2024Inventors: Fa-Shen Jiang, Hai-Dang Trinh, Cheng-Yuan Tsai, Chung-Yi Yu
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Publication number: 20240373763Abstract: Various embodiments of the present application are directed towards a resistive random-access memory (RRAM) cell including a top-electrode barrier layer configured to block the movement of nitrogen or some other suitable non-metal element from a top electrode of the RRAM cell to an active metal layer of the RRAM cell. Blocking the movement of non-metal element may be prevent formation of an undesired switching layer between the active metal layer and the top electrode. The undesired switching layer would increase parasitic resistance of the RRAM cell, such that top-electrode barrier layer may reduce parasitic resistance by preventing formation of the undesired switching layer.Type: ApplicationFiled: July 16, 2024Publication date: November 7, 2024Inventors: Hsing-Lien Lin, Chii-Ming Wu, Fa-Shen Jiang
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Publication number: 20240357835Abstract: In some embodiments, the present disclosure relates to an integrated chip. The integrated chip includes a first interconnect dielectric layer over a substrate and surrounding a first interconnect. A second interconnect dielectric layer is over the first interconnect dielectric layer and surrounds at least a part of a second interconnect. A bottom electrode is over the substrate, a top electrode is over the bottom electrode, and a ferroelectric layer is between the bottom electrode and the top electrode. The ferroelectric layer includes a lower horizontally extending portion, an upper horizontally extending portion arranged above the lower horizontally extending portion, and a vertically extending portion coupling the lower horizontally extending portion and the upper horizontally extending portion. The vertically extending portion extends through the first interconnect dielectric layer and the second interconnect dielectric layer.Type: ApplicationFiled: July 1, 2024Publication date: October 24, 2024Inventors: Hai-Dang Trinh, Yi Yang Wei, Bi-Shen Lee, Fa-Shen Jiang, Hsun-Chung Kuang, Cheng-Yuan Tsai
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THRESHOLD VOLTAGE-MODULATED MEMORY DEVICE USING VARIABLE-CAPACITANCE AND METHODS OF FORMING THE SAME
Publication number: 20240357840Abstract: A memory device includes a field effect transistor and a variable-capacitance capacitor. A gate structure includes a gate dielectric and an intermediate electrode. The variable-capacitance capacitor includes a lower capacitor plate comprising the intermediate electrode, an upper capacitor plate comprising a control gate electrode, and a variable-capacitance node dielectric and including an electrical-field-programmable metal oxide material. The electrical-field-programmable metal oxide material provides a variable effective dielectric constant, and a data bit may be stored as a dielectric state of the variable-capacitance node dielectric in the memory device. The variable-capacitance node dielectric provides reversible electrical field-dependent resistivity modulation, or reversible electrical field-dependent movement of metal atoms therein.Type: ApplicationFiled: June 28, 2024Publication date: October 24, 2024Inventors: Fa-Shen JIANG, Hsia-Wei CHEN, Hai-Dang TRINH, Hsun-Chung KUANG