Patents by Inventor Bo-Yu Lai

Bo-Yu Lai 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: 20240111849
    Abstract: A media docking device includes an input circuit, an output circuit and a processing circuit. The input circuit is electrically connected to a media source device for receiving media data. The output circuit is electrically connected to a media play device. The processing circuit is electrically connected to the input circuit and the output circuit. The processing circuit determines if a verification procedure is passed. If the verification procedure is passed, the processing circuit transfers the media data to the media play device. If the verification procedure is not passed, the processing circuit limits a transmission of the media data, such that the media data will not be completely played by the media play device.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 4, 2024
    Inventors: Chien-Wei CHEN, Tsung-Han LI, You-Wen CHIOU, Kuan-Chi CHOU, Bo Yu LAI
  • Publication number: 20240113201
    Abstract: Methods and structures for modulating an inner spacer profile include providing a fin having an epitaxial layer stack including a plurality of semiconductor channel layers interposed by a plurality of dummy layers. In some embodiments, the method further includes removing the plurality of dummy layers to form a first gap between adjacent semiconductor channel layers of the plurality of semiconductor channel layers. Thereafter, in some examples, the method includes conformally depositing a dielectric layer to substantially fill the first gap between the adjacent semiconductor channel layers. In some cases, the method further includes etching exposed lateral surfaces of the dielectric layer to form an etched-back dielectric layer that defines substantially V-shaped recesses. In some embodiments, the method further includes forming a substantially V-shaped inner spacer within the substantially V-shaped recesses.
    Type: Application
    Filed: January 25, 2023
    Publication date: April 4, 2024
    Inventors: Chih-Ching WANG, Wei-Yang LEE, Bo-Yu LAI, Chung-I YANG, Sung-En LIN
  • Publication number: 20240113202
    Abstract: Embodiments of the present disclosure relate to a FinFET device having gate spacers with reduced capacitance and methods for forming the FinFET device. Particularly, the FinFET device according to the present disclosure includes gate spacers formed by two or more depositions. The gate spacers are formed by depositing first and second materials at different times of processing to reduce parasitic capacitance between gate structures and contacts introduced after epitaxy growth of source/drain regions.
    Type: Application
    Filed: December 1, 2023
    Publication date: April 4, 2024
    Inventors: Wen-Kai Lin, Bo-Yu Lai, Li Chun Te, Kai-Hsuan Lee, Sai-Hooi Yeong, Tien-I Bao, Wei-Ken Lin
  • Publication number: 20240114207
    Abstract: A media docking device includes an input module, an output module and a processing module. The input module is electrically connected to a media source device for receiving media data. The output module is electrically connected to a media play device. The processing module determines if an instruction is received from the media source device or a remote device. If the instruction is not received, the processing module transfers the media data to the output module to transmit to the media play device. If the instruction is received, the processing module limits a transmission of the media data according to the instruction, such that the media data will not be completely played by the media play device.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 4, 2024
    Inventors: Chien-Wei CHEN, Tsung-Han LI, You-Wen CHIOU, Kuan-Chi CHOU, Bo Yu LAI
  • Publication number: 20240097010
    Abstract: Doping techniques for fin-like field effect transistors (FinFETs) are disclosed herein. An exemplary method includes forming a fin structure, forming a doped amorphous layer over a portion of the fin structure, and performing a knock-on implantation process to drive a dopant from the doped amorphous layer into the portion of the fin structure, thereby forming a doped feature. The doped amorphous layer includes a non-crystalline form of a material. In some implementations, the knock-on implantation process crystallizes at least a portion of the doped amorphous layer, such that the portion of the doped amorphous layer becomes a part of the fin structure. In some implementations, the doped amorphous layer includes amorphous silicon, and the knock-on implantation process crystallizes a portion of the doped amorphous silicon layer.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 21, 2024
    Inventors: Sai-Hooi Yeong, Sheng-Chen Wang, Bo-Yu Lai, Ziwei Fang, Feng-Cheng Yang, Yen-Ming Chen
  • Publication number: 20240088155
    Abstract: A semiconductor device includes source/drain regions, a gate structure, a first gate spacer, and a dielectric material. The source/drain regions are over a substrate. The gate structure is laterally between the source/drain regions. The first gate spacer is on a first sidewall of the gate structure, and spaced apart from a first one of the source/drain regions at least in part by a void region. The dielectric material is between the first one of the source/drain regions and the void region. The dielectric material has a gradient ratio of a first chemical element to a second chemical element.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 14, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Bo-Yu LAI, Kai-Hsuan LEE, Wei-Yang LEE, Feng-Cheng YANG, Yen-Ming CHEN
  • Patent number: 11929418
    Abstract: A gate structure includes a substrate divided into an N-type transistor region and a P-type transistor region. An interlayer dielectric covers the substrate. A first trench is embedded in the interlayer dielectric within the N-type transistor region. A first gate electrode having a bullet-shaped profile is disposed in the first trench. A gate dielectric contacts the first trench. An N-type work function layer is disposed between the gate dielectric layer and the first gate electrode. A second trench is embedded in the interlayer dielectric within the P-type transistor region. A second gate electrode having a first mushroom-shaped profile is disposed in the second trench. The gate dielectric layer contacts the second trench. The N-type work function layer is disposed between the gate dielectric layer and the second gate electrode. A first P-type work function layer is disposed between the gate dielectric layer and the N-type work function layer.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: March 12, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Jie-Ning Yang, Wen-Tsung Chang, Po-Wen Su, Kuan-Ying Lai, Bo-Yu Su, Chun-Mao Chiou, Yao-Jhan Wang
  • Publication number: 20240079472
    Abstract: The present disclosure provides a semiconductor device and a method for forming a semiconductor device. The semiconductor device includes a substrate, and a first gate dielectric stack over the substrate, wherein the first gate dielectric stack includes a first ferroelectric layer, and a first dielectric layer coupled to the first ferroelectric layer, wherein the first ferroelectric layer includes a first portion made of a ferroelectric material in orthorhombic phase, a second portion made of the ferroelectric material in monoclinic phase, and a third portion made of the ferroelectric material in tetragonal phase, wherein a total volume of the second portion is greater than a total volume of the first portion, and the total volume of the first portion is greater than a total volume of the third portion.
    Type: Application
    Filed: November 6, 2023
    Publication date: March 7, 2024
    Inventors: CHUN-YEN PENG, TE-YANG LAI, BO-FENG YOUNG, CHIH-YU CHANG, SAI-HOOI YEONG, CHI ON CHUI
  • Patent number: 11901408
    Abstract: In one example aspect, a method for integrated circuit (IC) fabrication comprises providing a device structure including a substrate, a source/drain (S/D) feature on the substrate, a gate stack on the substrate, a contact hole over the S/D feature; and a dummy feature over the S/D feature and between the gate stack and the contact hole. The method further comprises forming in the contact hole a contact plug that is electrically coupled to the S/D feature, and, after forming the contact plug, selectively removing the dummy feature to form an air gap that extends higher than a top surface of the gate stack. The method further comprises forming over the contact plug a seal layer that covers the air gap.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: February 13, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Kai-Hsuan Lee, Bo-Yu Lai, Sai-Hooi Yeong, Feng-Cheng Yang, Yih-Ann Lin, Yen-Ming Chen
  • Patent number: 11862713
    Abstract: Doping techniques for fin-like field effect transistors (FinFETs) are disclosed herein. An exemplary method includes forming a fin structure, forming a doped amorphous layer over a portion of the fin structure, and performing a knock-on implantation process to drive a dopant from the doped amorphous layer into the portion of the fin structure, thereby forming a doped feature. The doped amorphous layer includes a non-crystalline form of a material. In some implementations, the knock-on implantation process crystallizes at least a portion of the doped amorphous layer, such that the portion of the doped amorphous layer becomes a part of the fin structure. In some implementations, the doped amorphous layer includes amorphous silicon, and the knock-on implantation process crystallizes a portion of the doped amorphous silicon layer.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: January 2, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Sai-Hooi Yeong, Sheng-Chen Wang, Bo-Yu Lai, Ziwei Fang, Feng-Cheng Yang, Yen-Ming Chen
  • Patent number: 11855182
    Abstract: Embodiments of the present disclosure relate to a FinFET device having gate spacers with reduced capacitance and methods for forming the FinFET device. Particularly, the FinFET device according to the present disclosure includes gate spacers formed by two or more depositions. The gate spacers are formed by depositing first and second materials at different times of processing to reduce parasitic capacitance between gate structures and contacts introduced after epitaxy growth of source/drain regions.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: December 26, 2023
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Wen-Kai Lin, Bo-Yu Lai, Li Chun Te, Kai-Hsuan Lee, Sai-Hooi Yeong, Tien-I Bao, Wei-Ken Lin
  • Patent number: 11855097
    Abstract: A semiconductor device includes a gate stack, an epitaxy structure, a first spacer, a second spacer, and a dielectric residue. The gate stack is over a substrate. The epitaxy structure is formed raised above the substrate. The first spacer is on a sidewall of the gate stack. The first spacer and the epitaxy structure define a void therebetween. The second spacer seals the void between the first spacer and the epitaxy structure. The dielectric residue is in the void and has an upper portion and a lower portion under the upper portion. The upper portion of the dielectric residue has a silicon-to-nitrogen atomic ratio higher than a silicon-to-nitrogen atomic ratio of the lower portion of the dielectric residue.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: December 26, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Bo-Yu Lai, Kai-Hsuan Lee, Wei-Yang Lee, Feng-Cheng Yang, Yen-Ming Chen
  • Publication number: 20230395434
    Abstract: A semiconductor device includes a fin-shape base protruding from a substrate, channel structures suspended above the fin-shape base, a gate structure wrapping around each of the channel structures, a source/drain (S/D) epitaxial feature abutting the channel structures and directly above a top surface of the fin-shape base, inner spacers interposing the S/D epitaxial feature and the gate structure, and a dielectric layer disposed vertically between the top surface of the fin-shape base and a bottom surface of the S/D epitaxial feature.
    Type: Application
    Filed: August 10, 2023
    Publication date: December 7, 2023
    Inventors: Bo-Yu Lai, Jyun-Chih Lin, Yen-Ting Chen, Wei-Yang Lee, Chia-Pin Lin, Wei Hao Lu, Li-Li Su
  • Publication number: 20230187518
    Abstract: A method includes forming a stack of channel layers and sacrificial layers on a substrate. The channel layers and the sacrificial layers have different material compositions and being alternatingly disposed in a vertical direction. The method further includes patterning the stack to form a semiconductor fin, forming an isolation feature on sidewalls of the semiconductor fin, recessing the semiconductor fin, thereby forming a source/drain recess, such that a recessed top surface of the semiconductor fin is below a top surface of the isolation feature, growing a base epitaxial layer from the recessed top surface of the semiconductor fin, depositing an insulation layer in the source/drain recess, and forming an epitaxial feature in the source/drain recess, wherein the epitaxial feature is above the insulation layer. The insulation layer is above the base epitaxial layer and above a bottommost channel layer.
    Type: Application
    Filed: April 6, 2022
    Publication date: June 15, 2023
    Inventors: Bo-Yu Lai, Wei-Yang Lee, Ming-Lung Cheng, Chia-Pin Lin, Yuan-Ching Peng
  • Patent number: 11626504
    Abstract: A FinFET device structure is provided. The FinFET device structure includes a fin structure formed over a substrate, and a gate structure formed over the fin structure. The FinFET device structure also includes an epitaxial source/drain (S/D) structure formed over the fin structure. A top surface and a sidewall of the fin structure are surrounded by the epitaxial S/D structure. A first distance between an outer surface of the epitaxial S/D structure and the sidewall of the fin structure is no less than a second distance between the outer surface of the epitaxial S/D structure and the top surface of the fin structure.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: April 11, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Sai-Hooi Yeong, Chi-On Chui, Bo-Feng Young, Bo-Yu Lai, Kuan-Lun Cheng, Chih-Hao Wang
  • Publication number: 20230064735
    Abstract: Semiconductor devices and methods of fabricating the semiconductor devices are described herein. The method includes steps for patterning fins in a multilayer stack and forming an opening in a fin as an initial step in forming a multilayer source/drain region. The opening is formed into a parasitic channel region of the fin. Once the opening has been formed, a source/drain barrier material is deposited using a bottom-up deposition process at the bottom of the opening to a level below the multilayer stack. A multilayer source/drain region is formed over the source/drain barrier material. A stack of nanostructures is formed by removing sacrificial layers of the multilayer stack, the multilayer source/drain region being electrically coupled to the stack of nanostructures.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 2, 2023
    Inventors: Chien-Wei Lee, Chii-Horng Li, Bang-Ting Yan, Bo-Yu Lai, Wei-Yang Lee, Chia-Pin Lin
  • Publication number: 20220384442
    Abstract: A semiconductor device includes a gate stack, an epitaxy structure, a first spacer, a second spacer, and a dielectric residue. The gate stack is over a substrate. The epitaxy structure is formed raised above the substrate. The first spacer is on a sidewall of the gate stack. The first spacer and the epitaxy structure define a void therebetween. The second spacer seals the void between the first spacer and the epitaxy structure. The dielectric residue is in the void and has an upper portion and a lower portion under the upper portion. The upper portion of the dielectric residue has a silicon-to-nitrogen atomic ratio higher than a silicon-to-nitrogen atomic ratio of the lower portion of the dielectric residue.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 1, 2022
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Bo-Yu LAI, Kai-Hsuan LEE, Wei-Yang LEE, Feng-Cheng YANG, Yen-Ming CHEN
  • Publication number: 20220376090
    Abstract: Doping techniques for fin-like field effect transistors (FinFETs) are disclosed herein. An exemplary method includes forming a fin structure, forming a doped amorphous layer over a portion of the fin structure, and performing a knock-on implantation process to drive a dopant from the doped amorphous layer into the portion of the fin structure, thereby forming a doped feature. The doped amorphous layer includes a non-crystalline form of a material. In some implementations, the knock-on implantation process crystallizes at least a portion of the doped amorphous layer, such that the portion of the doped amorphous layer becomes a part of the fin structure. In some implementations, the doped amorphous layer includes amorphous silicon, and the knock-on implantation process crystallizes a portion of the doped amorphous silicon layer.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 24, 2022
    Inventors: Sai-Hooi Yeong, Sheng-Chen Wang, Bo-Yu Lai, Ziwei Fang, Feng-Cheng Yang, Yen-Ming Chen
  • Patent number: 11476352
    Abstract: Doping techniques for fin-like field effect transistors (FinFETs) are disclosed herein. An exemplary method includes forming a fin structure, forming a doped amorphous layer over a portion of the fin structure, and performing a knock-on implantation process to drive a dopant from the doped amorphous layer into the portion of the fin structure, thereby forming a doped feature. The doped amorphous layer includes a non-crystalline form of a material. In some implementations, the knock-on implantation process crystallizes at least a portion of the doped amorphous layer, such that the portion of the doped amorphous layer becomes a part of the fin structure. In some implementations, the doped amorphous layer includes amorphous silicon, and the knock-on implantation process crystallizes a portion of the doped amorphous silicon layer.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: October 18, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Sai-Hooi Yeong, Sheng-Chen Wang, Bo-Yu Lai, Ziwei Fang, Feng-Cheng Yang, Yen-Ming Chen
  • Patent number: 11456295
    Abstract: A semiconductor device includes a gate stack, an epitaxy structure, a first spacer, a second spacer, and a dielectric residue. The gate stack is over a substrate. The epitaxy structure is formed raised above the substrate. The first spacer is on a sidewall of the gate stack. The first spacer and the epitaxy structure define an air gap therebetween. The second spacer seals the air gap between the first spacer and the epitaxy structure. The dielectric residue is in the air gap and has an upper portion and a lower portion under the upper portion. The upper portion of the dielectric residue has higher etch resistance to phosphoric acid than that of the lower portion of the dielectric residue.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: September 27, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Bo-Yu Lai, Kai-Hsuan Lee, Wei-Yang Lee, Feng-Cheng Yang, Yen-Ming Chen