Patents by Inventor Bi-Shen LEE

Bi-Shen LEE 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).

  • Publication number: 20240138272
    Abstract: 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: Application
    Filed: January 3, 2024
    Publication date: April 25, 2024
    Inventors: Fa-Shen Jiang, Cheng-Yuan Tsai, Hai-Dang Trinh, Hsing-Lien Lin, Hsun-Chung Kuang, Bi-Shen Lee
  • Patent number: 11967611
    Abstract: A multilayer structure, a capacitor structure and an electronic device are provided. The multilayer structure includes a first dielectric layer, a second dielectric layer and an intermediate dielectric layer. The intermediate dielectric layer is disposed between the first dielectric layer and the second dielectric layer. A material of the intermediate dielectric layer is represented by a formula of AxB1-xO, wherein A includes hafnium (Hf), zirconium (Zr), lanthanum (La) or tantalum (Ta), B includes lanthanum (La), aluminum (Al) or tantalum (Ta), A is different from B, O is oxygen, and x is a number less than 1 and greater than 0.
    Type: Grant
    Filed: May 30, 2022
    Date of Patent: April 23, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Hai-Dang Trinh, Yi Yang Wei, Fa-Shen Jiang, Bi-Shen Lee, Hsun-Chung Kuang
  • Patent number: 11916127
    Abstract: Various embodiments of the present disclosure are directed towards a memory device including a first bottom electrode layer over a substrate. A ferroelectric switching layer is disposed over the first bottom electrode layer. A first top electrode layer is disposed over the ferroelectric switching layer. A second bottom electrode layer is disposed between the first bottom electrode layer and the ferroelectric switching layer. The second bottom electrode layer is less susceptible to oxidation than the first bottom electrode layer.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: February 27, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yi Yang Wei, Bi-Shen Lee, Hsin-Yu Lai, Hai-Dang Trinh, Hsing-Lien Lin, Hsun-Chung Kuang
  • Publication number: 20240064998
    Abstract: A method includes forming a bottom electrode layer, and depositing a first ferroelectric layer over the bottom electrode layer. The first ferroelectric layer is amorphous. A second ferroelectric layer is deposited over the first ferroelectric layer, and the second ferroelectric layer has a polycrystalline structure. The method further includes depositing a third ferroelectric layer over the second ferroelectric layer, with the third ferroelectric layer being amorphous, depositing a top electrode layer over the third ferroelectric layer, and patterning the top electrode layer, the third ferroelectric layer, the second ferroelectric layer, the first ferroelectric layer, and the bottom electrode layer to form a Ferroelectric Random Access Memory cell.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 22, 2024
    Inventors: Bi-Shen Lee, Yi Yang Wei, Hsing-Lien Lin, Hsun-Chung Kuang, Cheng-Yuan Tsai, Hai-Dang Trinh
  • Patent number: 11895933
    Abstract: 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 first switching layer is formed on the bottom electrode. The first switching layer comprises a dielectric material doped with a first dopant. A second switching layer is formed over the first switching layer. An atomic percentage of the first dopant in the second switching layer is less than an atomic percentage of the first dopant in the first switching layer. A top electrode is formed over the second switching layer.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: February 6, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Fa-Shen Jiang, Cheng-Yuan Tsai, Hai-Dang Trinh, Hsing-Lien Lin, Hsun-Chung Kuang, Bi-Shen Lee
  • Publication number: 20240023344
    Abstract: In some embodiments, the present disclosure relates to an integrated chip. The integrated chip includes a lower electrode structure disposed over one or more interconnects. The one or more interconnects are arranged within a lower inter-level dielectric (ILD) structure over a substrate. A barrier is arranged along a lower surface of the lower electrode structure. The barrier separates the lower electrode structure from the one or more interconnects. An amorphous initiation layer is over the lower electrode layer and a ferroelectric material is on the amorphous initiation layer. The ferroelectric material has a substantially uniform orthorhombic crystalline phase. An upper electrode is over the ferroelectric material.
    Type: Application
    Filed: July 26, 2023
    Publication date: January 18, 2024
    Inventors: Bi-Shen Lee, Yi Yang Wei, Hai-Dang Trinh, Hsun-Chung Kuang, Cheng-Yuan Tsai
  • Publication number: 20240021700
    Abstract: Various embodiments of the present disclosure are directed towards a memory device including a first bottom electrode layer over a substrate. A ferroelectric switching layer is disposed over the first bottom electrode layer. A first top electrode layer is disposed over the ferroelectric switching layer. A second bottom electrode layer is disposed between the first bottom electrode layer and the ferroelectric switching layer. The second bottom electrode layer is less susceptible to oxidation than the first bottom electrode layer.
    Type: Application
    Filed: August 8, 2023
    Publication date: January 18, 2024
    Inventors: Yi Yang Wei, Bi-Shen Lee, Hsin-Yu Lai, Hai-Dang Trinh, Hsing-Lien Lin, Hsun-Chung Kuang
  • Publication number: 20230402487
    Abstract: A Deep Trench Isolation (DTI) structure is disclosed. The DTI structures according to embodiments of the present disclosure include a composite passivation layer. In some embodiments, the composite passivation layer includes a hole accumulation layer and a defect repairing layer. The defect repairing layer is disposed between the hole accumulation layer and a semiconductor substrate in which the DTI structure is formed. The defect repairing layer reduces lattice defects in the interface, thus, reducing the density of interface trap (DIT) at the interface. Reduced density of interface trap facilitates strong hole accumulation, thus increasing the flat band voltage. In some embodiments, the hole accumulation layer according to the present disclosure is enhanced by an oxidization treatment.
    Type: Application
    Filed: June 13, 2022
    Publication date: December 14, 2023
    Inventors: Bi-Shen LEE, Chia-Wei HU, Hai-Dang TRINH, Min-Ying TSAI, Ching I LI, Hsun-Chung KUANG, Cheng-Yuan TSAI
  • Patent number: 11844226
    Abstract: A method includes forming a bottom electrode layer, and depositing a first ferroelectric layer over the bottom electrode layer. The first ferroelectric layer is amorphous. A second ferroelectric layer is deposited over the first ferroelectric layer, and the second ferroelectric layer has a polycrystalline structure. The method further includes depositing a third ferroelectric layer over the second ferroelectric layer, with the third ferroelectric layer being amorphous, depositing a top electrode layer over the third ferroelectric layer, and patterning the top electrode layer, the third ferroelectric layer, the second ferroelectric layer, the first ferroelectric layer, and the bottom electrode layer to form a Ferroelectric Random Access Memory cell.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: December 12, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Bi-Shen Lee, Yi Yang Wei, Hsing-Lien Lin, Hsun-Chung Kuang, Cheng-Yuan Tsai, Hai-Dang Trinh
  • Publication number: 20230387190
    Abstract: A multilayer structure, a capacitor structure and an electronic device are provided. The multilayer structure includes a first dielectric layer, a second dielectric layer and an intermediate dielectric layer. The intermediate dielectric layer is disposed between the first dielectric layer and the second dielectric layer. A material of the intermediate dielectric layer is represented by a formula of AxB1?xO, wherein A includes hafnium (Hf), zirconium (Zr), lanthanum (La) or tantalum (Ta), B includes lanthanum (La), aluminum (Al) or tantalum (Ta), A is different from B, O is oxygen, and x is a number less than 1 and greater than 0.
    Type: Application
    Filed: May 30, 2022
    Publication date: November 30, 2023
    Inventors: HAI-DANG TRINH, YI YANG WEI, FA-SHEN JIANG, BI-SHEN LEE, HSUN-CHUNG KUANG
  • Publication number: 20230354613
    Abstract: In some embodiments, the present disclosure relates to a memory device including a semiconductor substrate, a first electrode disposed over the semiconductor substrate, a ferroelectric layer disposed between the first electrode and the semiconductor substrate, and a first stressor layer separating the first electrode from the ferroelectric layer. The first stressor layer has a coefficient of thermal expansion greater than that of the ferroelectric layer.
    Type: Application
    Filed: June 26, 2023
    Publication date: November 2, 2023
    Inventors: Bi-Shen Lee, Tzu-Yu Lin, Yi-Yang Wei, Hai-Dang Trinh, Hsun-Chung Kuang, Cheng-Yuan Tsai
  • Publication number: 20230354717
    Abstract: A semiconductor device and method of manufacturing the same are provided. The semiconductor device includes a substrate, a first dielectric layer, an etching stop layer, a second dielectric layer, a conductive via, and a data storage structure. The first dielectric layer is disposed on the substrate. The etching stop layer is disposed on the first dielectric layer. The second dielectric layer is disposed on the etching stop layer. The first dielectric layer, the etching stop layer, and the second dielectric layer collectively define an opening. The conductive via is disposed in the opening. The data storage structure is disposed on the conductive via.
    Type: Application
    Filed: April 29, 2022
    Publication date: November 2, 2023
    Inventors: BI-SHEN LEE, HAI-DANG TRINH, HSUN-CHUNG KUANG
  • Publication number: 20230320103
    Abstract: In some embodiments, the present disclosure relates to an integrated chip that includes one or more interconnect dielectric layers arranged over a substrate. A bottom electrode is disposed over a conductive structure and extends through the one or more interconnect dielectric layers. A top electrode is disposed over the bottom electrode. A ferroelectric layer is disposed between and contacts the bottom electrode and the top electrode. The ferroelectric layer includes a first lower horizontal portion, a first upper horizontal portion arranged above the first lower horizontal portion, and a first sidewall portion coupling the first lower horizontal portion to the first upper horizontal portion.
    Type: Application
    Filed: June 9, 2023
    Publication date: October 5, 2023
    Inventors: Hai-Dang Trinh, Yi Yang Wei, Bi-Shen Lee, Fa-Shen Jiang, Hsun-Chung Kuang, Cheng-Yuan Tsai
  • Patent number: 11737280
    Abstract: In some embodiments, the present disclosure relates to a memory device including a semiconductor substrate, a first electrode disposed over the semiconductor substrate, a ferroelectric layer disposed between the first electrode and the semiconductor substrate, and a first stressor layer separating the first electrode from the ferroelectric layer. The first stressor layer has a coefficient of thermal expansion greater than that of the ferroelectric layer.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: August 22, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Bi-Shen Lee, Tzu-Yu Lin, Yi-Yang Wei, Hai-Dang Trinh, Hsun-Chung Kuang, Cheng-Yuan Tsai
  • Patent number: 11723212
    Abstract: In some embodiments, the present disclosure relates to an integrated chip that includes one or more interconnect dielectric layers arranged over a substrate. A bottom electrode is disposed over a conductive structure and extends through the one or more interconnect dielectric layers. A top electrode is disposed over the bottom electrode. A ferroelectric layer is disposed between and contacts the bottom electrode and the top electrode. The ferroelectric layer includes a first lower horizontal portion, a first upper horizontal portion arranged above the first lower horizontal portion, and a first sidewall portion and coupling the first lower horizontal portion to the first upper horizontal portion.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: August 8, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hai-Dang Trinh, Yi Yang Wei, Bi-Shen Lee, Fa-Shen Jiang, Hsun-Chung Kuang, Cheng-Yuan Tsai
  • Patent number: 11665909
    Abstract: A method includes forming a bottom electrode layer, and depositing a first ferroelectric layer over the bottom electrode layer. The first ferroelectric layer is amorphous. A second ferroelectric layer is deposited over the first ferroelectric layer, and the second ferroelectric layer has a polycrystalline structure. The method further includes depositing a third ferroelectric layer over the second ferroelectric layer, with the third ferroelectric layer being amorphous, depositing a top electrode layer over the third ferroelectric layer, and patterning the top electrode layer, the third ferroelectric layer, the second ferroelectric layer, the first ferroelectric layer, and the bottom electrode layer to form a Ferroelectric Random Access Memory cell.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: May 30, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Bi-Shen Lee, Yi Yang Wei, Hsing-Lien Lin, Hsun-Chung Kuang, Cheng-Yuan Tsai, Hai-Dang Trinh
  • Publication number: 20220406916
    Abstract: Various embodiments of the present disclosure are directed towards a memory device including a first bottom electrode layer over a substrate. A ferroelectric switching layer is disposed over the first bottom electrode layer. A first top electrode layer is disposed over the ferroelectric switching layer. A second bottom electrode layer is disposed between the first bottom electrode layer and the ferroelectric switching layer. The second bottom electrode layer is less susceptible to oxidation than the first bottom electrode layer.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 22, 2022
    Inventors: Yi Yang Wei, Bi-Shen Lee, Hsin-Yu Lai, Hai-Dang Trinh, Hsing-Lien Lin, Hsun-Chung Kuang
  • Patent number: 11527713
    Abstract: The present disclosure, in some embodiments, relates to a memory device. The memory device includes a bottom electrode disposed over a lower interconnect within a lower inter-level dielectric (ILD) layer over a substrate. A data storage structure is over the bottom electrode. A first top electrode layer is disposed over the data storage structure, and a second top electrode layer is on the first top electrode layer. The second top electrode layer is less susceptible to oxidation than the first top electrode layer. A top electrode via is over and electrically coupled to the second top electrode layer.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: December 13, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Bi-Shen Lee, Hai-Dang Trinh, Hsun-Chung Kuang, Tzu-Chung Tsai, Yao-Wen Chang
  • Patent number: 11527717
    Abstract: Various embodiments of the present disclosure are directed towards a memory cell including a co-doped data storage structure. A bottom electrode overlies a substrate and a top electrode overlies the bottom electrode. The data storage structure is disposed between the top and bottom electrodes. The data storage structure comprises a dielectric material doped with a first dopant and a second dopant.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: December 13, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hai-Dang Trinh, Chii-Ming Wu, Hsing-Lien Lin, Tzu-Chung Tsai, Fa-Shen Jiang, Bi-Shen Lee
  • Publication number: 20220393101
    Abstract: Various embodiments of the present disclosure are directed towards an integrated circuit (IC) chip comprising a memory cell with a sidewall spacer, and/or an etch stop layer, doped to reduce charge accumulation at an interface between the sidewall spacer and the etch stop layer. The memory cell comprises a bottom electrode, a data storage element overlying the bottom electrode, and a top electrode overlying the data storage element. The sidewall spacer overlies the bottom electrode on a common sidewall formed by the data storage element and the top electrode, and the etch stop layer lines the sidewall spacer. The sidewall spacer and the etch stop layer directly contact at the interface and form an electric dipole at the interface. The doping to reduce charge accumulation reduces an electric field produced by the electric dipole, thereby reducing the effect of the electric field on the memory cell.
    Type: Application
    Filed: July 29, 2021
    Publication date: December 8, 2022
    Inventors: Bi-Shen Lee, Hai-Dang Trinh, Hsun-Chung Kuang, Cheng-Yuan Tsai