Patents by Inventor Dian-Hau Chen

Dian-Hau Chen 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: 20230386940
    Abstract: A method for forming a semiconductor structure is provided. The method includes forming an interconnect structure, and forming a conductive feature electrically connected to the interconnect structure. The method also includes forming a first passivation layer over the interconnect structure and the conductive feature, and etching the first passivation layer to form an opening that exposes the conductive feature. The method further includes performing an electrical test on the conductive feature, filling the opening with an oxide material, and attaching a carrier substrate over the oxide material using a bonding layer.
    Type: Application
    Filed: May 25, 2022
    Publication date: November 30, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Hsin Yang, Dian-Hau Chen, Yen-Ming Chen
  • Publication number: 20230389447
    Abstract: A method of forming a semiconductor device includes providing a bottom electrode; a magnetic tunneling junction (MTJ) element over the bottom electrode; a top electrode over the MTJ element; and a sidewall spacer abutting the MTJ element, wherein at least one of the bottom electrode, the top electrode, and the sidewall spacer includes a magnetic material.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Inventors: Tsung-Chieh Hsiao, Po-Sheng Lu, Wei-Chih Wen, Liang-Wei Wang, Yu-Jen Wang, Dian-Hau Chen, Yen-Ming Chen
  • Publication number: 20230387192
    Abstract: A method of manufacturing a semiconductor device includes forming a first conductive layer over a first insulating layer and forming a first dielectric layer over the first conductive layer. A second conductive layer is formed over a first portion of the first dielectric layer. A second dielectric layer is formed over the second conductive layer. A third conductive layer is formed over the second dielectric layer and the second portion of the first dielectric layer. A third dielectric layer is formed over the third conductive layer. A first conductive contact is formed contacting the first conductive layer. A second conductive contact is formed contacting the third conductive layer. The second conductive layer is an electrically floating layer.
    Type: Application
    Filed: May 25, 2022
    Publication date: November 30, 2023
    Inventors: Tsung-Chieh HSIAO, Hsiang-Ku SHEN, Yuan-Yang HSIAO, Wen-Chiung TU, Chen-Chiu HUANG, Dian-Hau CHEN
  • Publication number: 20230389437
    Abstract: A semiconductor device includes a substrate with a metal line embedded in the substrate, a dielectric layer disposed on the substrate, a bottom electrode via extending through the dielectric layer and landing on a top surface of the metal line, a bottom electrode disposed on a top surface of the bottom electrode via, a magnetic tunneling junction stack disposed on a top surface of the bottom electrode, and a top electrode disposed on the magnetic tunneling junction stack. A lower portion of the bottom electrode via includes a first metal, and an upper portion of the bottom electrode via includes a second metal that is different from the first metal.
    Type: Application
    Filed: July 29, 2023
    Publication date: November 30, 2023
    Inventors: Hsiang-Ku Shen, Liang-Wei Wang, Dian-Hau Chen
  • Publication number: 20230369199
    Abstract: A metal-insulator-metal (MIM) structure and methods of forming the same for reducing the accumulation of external stress at the corners of the conductor layers are disclosed herein. An exemplary device includes a substrate that includes an active semiconductor device. A stack of dielectric layers is disposed over the substrate. A lower contact is disposed over the stack of dielectric layers. A passivation layer is disposed over the lower contact. A MIM structure is disposed over the passivation layer, the MIM structure including a first conductor layer, a second conductor layer disposed over the first conductor layer, and a third conductor layer disposed over the second conductor layer. A first insulator layer is disposed between the first conductor layer and the second conductor layer. A second insulator layer is disposed between the second conductor layer and the third conductor layer. One or more corners of the third conductor layer are rounded.
    Type: Application
    Filed: July 26, 2023
    Publication date: November 16, 2023
    Inventors: Yuan-Yang Hsiao, Hsiang-Ku Shen, Dian-Hau Chen, Hsiao Ching-Wen, Yao-Chun Chuang
  • Publication number: 20230360946
    Abstract: A method for forming a semiconductor structure is provided. The method includes forming a contact feature over an insulating layer, forming a first passivation layer over the contact feature, and etching the first passivation layer to form a trench exposing the contact feature. The method also includes forming an oxide layer over the contact feature and the first passivation layer and in the trench, forming a first non-conductive structure over the oxide layer, and patterning the first non-conductive structure to form a gap. The method further includes filling a conductive material in the gap to form a first conductive feature. The first non-conductive structure and the first conductive feature form a first bonding structure. The method further includes attaching a carrier substrate to the first bonding structure via a second bonding structure over the carrier substrate.
    Type: Application
    Filed: May 6, 2022
    Publication date: November 9, 2023
    Inventors: Chih-Hsin YANG, Dian-Hau CHEN, Yen-Ming CHEN
  • Publication number: 20230352395
    Abstract: A method for forming a semiconductor structure includes forming a metal-insulator-metal (MIM) structure between first passivation layers over a substrate. The method also includes forming a via structure through the MIM structure and the first passivation layers. The method also includes planarizing the via structure. The method also includes forming an RDL structure over the via structure. The method also includes forming a second passivation layer over the RDL structure and the first passivation layers.
    Type: Application
    Filed: April 29, 2022
    Publication date: November 2, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Pin CHIU, Liang-Wei WANG, Chen-Chiu HUANG, Dian-Hau CHEN
  • Publication number: 20230352394
    Abstract: A semiconductor packaging structure includes a first passivation layer, a capacitor structure, and a second passivation layer. The capacitor structure is disposed on the first passivation layer. The second passivation layer is disposed on the capacitor structure opposite to the first passivation layer. The second passivation layer has a compressive stress that is smaller than ?0.3 GPa.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 2, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chen-Te CHU, Yuan-Yang HSIAO, Chih-Pin CHIU, Ying-Yao LAI, Mao-Nan WANG, Chen-Chiu HUANG, Dian-Hau CHEN
  • Publication number: 20230354614
    Abstract: A semiconductor device includes a substrate, a gate structure, a source region and a drain region, a conductive via and an isolation structure. The gate structure is disposed over the substrate. The source region and the drain region aside the gate structure. The conductive via is disposed in the substrate. The isolation structure is disposed in the substrate, wherein a first surface of the isolation structure is substantially flush with a first surface of the conductive via.
    Type: Application
    Filed: July 5, 2023
    Publication date: November 2, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsiang-Ku Shen, Liang-Wei Wang, Dian-Hau Chen, Yen-Ming Chen
  • Publication number: 20230335578
    Abstract: A device structure, along with methods of forming such, are described. The device structure includes a structure, a first passivation layer disposed on the structure, a buffer layer disposed on the first passivation layer, a barrier layer disposed on a first portion of the buffer layer, a redistribution layer disposed over the barrier layer, an adhesion layer disposed on the barrier layer and on side surfaces of the redistribution layer, and a second passivation layer disposed on a second portion of the buffer layer. The second passivation layer is in contact with the barrier layer, the adhesion layer, and the redistribution layer.
    Type: Application
    Filed: June 19, 2023
    Publication date: October 19, 2023
    Inventors: Tsung-Chieh HSIAO, Hsiang-Ku SHEN, Yuan-Yang HSIAO, Ying-Yao LAI, Dian-Hau CHEN
  • Publication number: 20230335517
    Abstract: In a method of manufacturing a semiconductor device, an opening is formed in a first dielectric layer so that a part of a lower conductive layer is exposed at a bottom of the opening, one or more liner conductive layers are formed over the part of the lower conductive layer, an inner sidewall of the opening and an upper surface of the first dielectric layer, a main conductive layer is formed over the one or more liner conductive layers, a patterned conductive layer is formed by patterning the main conductive layer and the one or more liner conductive layers, and a cover conductive layer is formed over the patterned conductive layer. The main conductive layer which is patterned is wrapped around by the cover conductive layer and one of the one or more liner conductive layers.
    Type: Application
    Filed: June 23, 2023
    Publication date: October 19, 2023
    Inventors: Tsung-Chieh HSIAO, Hsiang-Ku SHEN, Yuan-Yang HSIAO, Ying-Yao LAI, Dian-Hau CHEN
  • Patent number: 11791371
    Abstract: Semiconductor structures and methods of forming the same are provided. A method according to an embodiment includes forming a conductive feature and a first conductive plate over a substrate, conformally depositing a dielectric layer over the conductive feature and the first conductive plate, conformally depositing a conductive layer over the conductive feature and the first conductive plate, and patterning the conductive layer to form a second conductive plate over the first conductive plate and a resistor, the resistor includes a conductive line extending along a sidewall of the conductive feature. By employing the method, a high-resistance resistor may be formed along with a capacitor regardless of the resolution limit of, for example, lithography.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: October 17, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chih-Fan Huang, Hsiang-Ku Shen, Dian-Hau Chen, Yen-Ming Chen
  • Publication number: 20230317651
    Abstract: Semiconductor devices, integrated circuits and methods of forming the same are provided. In one embodiment, a method includes depositing a first dielectric layer over a metal pad disposed over a workpiece, forming a first opening in the first dielectric layer to expose a portion of the metal pad, after the forming of the first opening, forming a second dielectric layer over the exposed portion of the metal pad, depositing a first polymeric material over the second dielectric layer, forming a second opening through the first polymeric material and the second dielectric layer to expose the metal pad, and forming a bump feature over the exposed metal pad.
    Type: Application
    Filed: June 5, 2023
    Publication date: October 5, 2023
    Inventors: Chih-Fan Huang, Yen-Ming Chen, Chih-Sheng Li, Hui-Chi Chen, Chih-Hung Lu, Dian-Hau Chen
  • Publication number: 20230317593
    Abstract: A device structure according to the present disclosure includes a metal-insulator-metal (MIM) stack. The MIM stack includes at least one lower conductor plate layer, a first insulator layer disposed over the at least one lower conductor plate layer, a first conductor plate layer disposed over the first insulator layer, a second insulator layer disposed over the first conductor plate layer, and a second conductor plate layer disposed over the second insulator layer. The device structure further includes a ground via extending through and electrically coupled to a first ground plate in the first conductor plate layer and a first via extending through and electrically coupled to a high voltage plate in the second conductor plate layer. The first ground plate vertically overlaps the high voltage plate and the second insulator layer is different from the first insulator layer.
    Type: Application
    Filed: March 30, 2022
    Publication date: October 5, 2023
    Inventors: Yuan-Yang Hsiao, Hsiang-Ku Shen, Wen-Chiung Tu, Tsung-Chieh Hsiao, Chen-Chiu Huang, Dian-Hau Chen
  • Publication number: 20230317631
    Abstract: Methods for forming a back-end-of-line (BEOL) passive device structure are provided. A method according to the present disclosure includes depositing a first conductor layer over a substrate, patterning the first conductor layer to form a patterned first conductor layer, depositing a first insulation layer over the patterned first conductor layer, depositing a second conductor layer over the first insulation layer, patterning the second conductor layer to form a patterned second conductor layer, depositing a second insulation layer over the patterned second conductor layer, depositing a third conductor layer over the second insulation layer, and patterning the third conductor layer to form a patterned third conductor layer. The patterning of the first conductor layer includes removing a right-angle edge of the first conductor layer.
    Type: Application
    Filed: April 1, 2022
    Publication date: October 5, 2023
    Inventors: Yuan-Yang Hsiao, Tsung-Chieh Hsiao, Wen-Chiung Tu, Ying-Yao Lai, Chen-Te Chu, Mao-Nan Wang, Chen-Chiu Huang, Dian-Hau Chen
  • Patent number: 11778918
    Abstract: A method for manufacturing a memory device includes forming a via trench in a substrate and forming a via in the via trench. A lower portion of the via includes a first metal and an upper portion of the via includes a second metal that is different from the first metal. The method further includes forming a magnetic tunneling junction over the via and forming a top electrode over the magnetic tunneling junction.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: October 3, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsiang-Ku Shen, Liang-Wei Wang, Dian-Hau Chen
  • Publication number: 20230307333
    Abstract: Semiconductor devices and methods of forming the same are provided. In one embodiment, a semiconductor device includes a redistribution layer including a first conductive feature and a second conductive feature, a first contact feature disposed over and electrically coupled to the first conductive feature, a second contact feature disposed over and electrically coupled to the second conductive feature, and a passivation feature extending from between the first conductive feature and the second conductive feature between the first contact feature and the second contact feature. The passivation feature includes a dielectric feature and a dielectric layer. The dielectric layer is disposed on a planar top surface of the dielectric feature and a composition of the dielectric feature is different from a composition of the dielectric layer.
    Type: Application
    Filed: June 5, 2023
    Publication date: September 28, 2023
    Inventors: Hsiang-Ku Shen, Chun-Li Lin, Dian-Hau Chen
  • Publication number: 20230298972
    Abstract: A semiconductor structure includes a semiconductor substrate and an interconnect structure on the semiconductor structure. The interconnect structure includes a first layer, a second layer over the first layer, a third layer over the second layer, and a fourth layer over the third layer. A first through via extends through the semiconductor substrate, the first layer, and the second layer. A second through via extends through the third layer and the fourth layer. A bottom surface of the second through via contacts a top surface of the first through via.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Inventors: Yuan-Yang Hsiao, Dian-Hau Chen, Yen-Ming Chen
  • Publication number: 20230301194
    Abstract: A first metal layer extends across memory and logic device regions of a semiconductor structure. A dielectric barrier layer is disposed over the first metal layer. A first dielectric layer is disposed over the dielectric barrier layer in the memory device region and not in the logic device region. Multiple magnetic tunneling junction (MTJ) devices are disposed in the memory device region. A second dielectric layer is disposed in the memory device region and not in the logic device region. The second dielectric layer is disposed over the first dielectric layer and the MTJ devices. An extreme low-k dielectric layer is disposed over the dielectric barrier layer in the logic device region. A conductive feature in the logic device region penetrates the extreme low-k dielectric layer and the dielectric barrier layer to electrically connect to the first metal layer.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 21, 2023
    Inventors: Hsiang-Ku Shen, Dian-Hau Chen
  • Publication number: 20230292629
    Abstract: A method for forming a semiconductor memory structure includes forming an MTJ stack over a substrate. The method also includes etching the MTJ stack to form an MTJ device. The method also includes depositing a metal layer over a top surface and sidewalls of the MTJ device. The method also includes oxidizing the metal layer to form an oxidized metal layer. The method also includes depositing a cap layer over the oxidized metal layer. The method also includes oxidizing the cap layer to form an oxidized cap layer. The method also includes removing an un-oxidized portion of the cap layer.
    Type: Application
    Filed: March 9, 2022
    Publication date: September 14, 2023
    Inventors: Tzu-Ting LIU, Yu-Jen WANG, Chih-Pin CHIU, Hung-Chao KAO, Chih-Chuan SU, Liang-Wei WANG, Chen-Chiu HUANG, Dian-Hau CHEN