Patents by Inventor Li-Yi Chen

Li-Yi 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: 20240145389
    Abstract: A semiconductor chip includes a first intellectual property block. There are a second intellectual property block and a third intellectual property block around the first intellectual property block. There is a multiple metal layer stack over the first intellectual property block, the second intellectual property block, and the third intellectual property block. An interconnect structure is situated in the upper portion of the multiple metal layer stack. The interconnect structure is configured for connecting the first intellectual property block and the second intellectual property block. In addition, at least a part of the interconnect structure extends across and over the third intellectual property block.
    Type: Application
    Filed: July 28, 2023
    Publication date: May 2, 2024
    Inventors: Li-Chiu WENG, Yew Teck TIEO, Ming-Hsuan WANG, Chia-Cheng CHEN, Wei-Yi CHANG, Jen-Hang YANG, Chien-Hsiung HSU
  • Publication number: 20240142664
    Abstract: Two types of blue light blocking contact lenses are provided and are formed by curing different compositions. The first composition includes a blue light blocking component formed by mixing or reacting a first hydrophilic monomer and a yellow dye, a first colored dye component formed by mixing or reacting a second hydrophilic monomer and a first colored dye, at least one third hydrophilic monomer, a crosslinker, and an initiator. The first colored dye includes a green dye, a cyan dye, a blue dye, an orange dye, a red dye, a black dye, or combinations thereof. The second composition includes a blue light blocking component, at least one hydrophilic monomer, a crosslinker, and an initiator. The blue light blocking component is formed by mixing or reacting glycerol monomethacrylate and a yellow dye. Further, methods for preparing the above contact lenses are provided.
    Type: Application
    Filed: February 12, 2023
    Publication date: May 2, 2024
    Inventors: Han-Yi CHANG, Chun-Han CHEN, Tsung-Kao HSU, Wei-che WANG, Yu-Hung LIN, Wan-Ying GAO, Li-Hao LIU
  • Publication number: 20240144467
    Abstract: A hot spot defect detecting method and a hot spot defect detecting system are provided. In the method, hot spots are extracted from a design of a semiconductor product to define a hot spot map comprising hot spot groups, wherein local patterns in a same context of the design yielding a same image content are defined as a same hot spot group. During runtime, defect images obtained by an inspection tool performing hot scans on a wafer manufactured with the design are acquired and the hot spot map is aligned to each defect image to locate the hot spot groups. The hot spot defects in each defect image are detected by dynamically mapping the hot spot groups located in each defect image to a plurality of threshold regions and respectively performing automatic thresholding on pixel values of the hot spots of each hot spot group in the corresponding threshold region.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 2, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chien-Huei Chen, Pei-Chao Su, Xiaomeng Chen, Chan-Ming Chang, Shih-Yung Chen, Hung-Yi Chung, Kuang-Shing Chen, Li-Jou Lee, Yung-Cheng Lin, Wei-Chen Wu, Shih-Chang Wang, Chien-An Lin
  • Publication number: 20240128324
    Abstract: A field effect transistor includes a substrate having a transistor forming region thereon; an insulating layer on the substrate; a first graphene layer on the insulating layer within the transistor forming region; an etch stop layer on the first graphene layer within the transistor forming region; a first inter-layer dielectric layer on the etch stop layer; a gate trench recessed into the first inter-layer dielectric layer and the etch stop layer within the transistor forming region; a second graphene layer on interior surface of the gate trench; a gate dielectric layer on the second graphene layer and on the first inter-layer dielectric layer; and a gate electrode on the gate dielectric layer within the gate trench.
    Type: Application
    Filed: November 21, 2022
    Publication date: April 18, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Kuo-Chih Lai, Shih-Min Chou, Nien-Ting Ho, Wei-Ming Hsiao, Li-Han Chen, Szu-Yao Yu, Chung-Yi Chiu
  • Publication number: 20240088650
    Abstract: In some aspects of the present disclosure, an electrostatic discharge (ESD) protection circuit is disclosed. In some aspects, the ESD protection circuit includes a first transistor coupled to a pad, a second transistor coupled between the first transistor and ground, a stack of transistors coupled to the first transistor, and an ESD clamp coupled between the stack of transistors and the ground.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company Ltd.
    Inventors: Li-Wei Chu, Tao Yi Hung, Chia-Hui Chen, Wun-Jie Lin, Jam-Wem Lee
  • Patent number: 11881546
    Abstract: A device with a light-emitting diode includes a substrate, a first conductive pad and a second conductive pad, a light-emitting diode, a metal protrusion, a polymer layer, and a top electrode. The substrate has a top surface. The first conductive pad and the second conductive pad are on the substrate. The light-emitting diode is on the first conductive pad. The metal protrusion is on the second conductive pad. The polymer layer covers the top surface of the substrate, the first conductive pad, the second conductive pad, the metal protrusion, and the light-emitting diode, in which a distance from a top of the metal protrusion to the top surface of the substrate is greater than a thickness of the polymer layer. The top electrode covers the light-emitting diode, the polymer layer, and the metal protrusion such that the light-emitting diode is electrically connected with the second conductive pad.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: January 23, 2024
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventor: Li-Yi Chen
  • Publication number: 20230402565
    Abstract: A method of manufacturing micro devices includes: preparing a GaN-based epitaxial structure including a p-type GaN layer, a n-type GaN layer on the p-type GaN layer, and an undoped GaN layer on the n-type GaN layer; forming a photoresist layer on the GaN-based epitaxial structure with the undoped GaN layer contacting the photoresist layer; patterning the photoresist layer; performing a plasma etching process to the GaN-based epitaxial structure through the patterned photoresist layer until the patterned photoresist layer is completely removed, such that a plurality of mesas are formed on the etched GaN-based epitaxial structure, in which a height of the mesas is at least 1.0 ?m; and continuing to perform the plasma etching process until the undoped GaN layer is completely removed and the etched GaN-based epitaxial structure is cut into a plurality of micro devices.
    Type: Application
    Filed: June 12, 2022
    Publication date: December 14, 2023
    Inventors: Li-Yi CHEN, Hsiao-Fu LU
  • Publication number: 20230343640
    Abstract: A method for forming a conductive feature includes following operations. A first insulating layer is formed over a substrate. The first insulating layer is patterned to form a first recess in the first insulating layer. The first recess is filled with a conductive material. A plurality of second recesses are formed in the conductive material. Each of the second recesses overlaps the first recess. A portion of the conductive material is removed to form a first conductive feature. A ratio of a sum of opening areas of the second recesses to an opening area of the first recess is less than 1%.
    Type: Application
    Filed: April 20, 2022
    Publication date: October 26, 2023
    Inventors: KUAN WEI SU, CHE-LI LIN, LING-SUNG WANG, LI-YI CHEN
  • Patent number: 11784099
    Abstract: A method for replacing an element of a display device includes: forming a structure with a first liquid layer between a first micro device and a conductive pad of a substrate in which the first micro device is gripped by a sticking force produced by the first liquid layer; evaporating the first liquid layer such that the first micro device is bound to the substrate; determining if the first micro device is malfunctioned or misplaced; removing the first micro device when the first micro device is malfunctioned or misplaced; forming another structure with a second liquid layer between a second micro device and the conductive pad of the substrate in which the second micro device is gripped by a sticking force produced by the second liquid layer; and evaporating the second liquid layer such that the second micro device is bound to the substrate.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: October 10, 2023
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventor: Li-Yi Chen
  • Patent number: 11637229
    Abstract: A micro light emitting diode display includes a substrate, an electrode layer and a micro light emitting diode device. The substrate has a first surface, a second surface opposite to the first surface, and at least one air passage extending from the first surface to the second surface. The electrode layer is disposed on and in contact with the first surface of the substrate. The air passage has an opening on the first surface of the substrate, and the electrode layer is spaced apart from the opening. The micro light emitting diode device is disposed on the electrode layer and has a light emitting area that is less than or equal to 2500 ?m2.
    Type: Grant
    Filed: August 29, 2021
    Date of Patent: April 25, 2023
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventor: Li-Yi Chen
  • Publication number: 20220399477
    Abstract: A micro light-emitting diode device structure including a substrate, a micro light-emitting diode, an isolation layer, and a top electrode is provided. A height of a contact periphery between the micro light-emitting diode and a concave surface of the isolation layer is greater than a height of a flat surface of the isolation layer and is smaller than a height of the micro light-emitting diode. A height of the isolation layer decreases from the height of the contact periphery to the height of the flat surface in a direction away from the micro light-emitting diode. In a cross-section, an included angle between the flat surface and a virtual straight line connecting the contact periphery and a turning periphery is greater than 120 degrees. The turning periphery is a boundary between the concave surface and the flat surface.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 15, 2022
    Inventor: Li-Yi CHEN
  • Patent number: 11335828
    Abstract: A method of handling a micro device is provided. The method includes: holding the micro device by a transfer head; forming a liquid layer between the micro device and a substrate; maintaining a first temperature of the transfer head to be lower than an environmental temperature; maintaining a second temperature of the substrate to be lower than the environmental temperature; and binding the micro device to the substrate by the liquid layer.
    Type: Grant
    Filed: December 8, 2019
    Date of Patent: May 17, 2022
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventor: Li-Yi Chen
  • Publication number: 20220102223
    Abstract: A method for replacing an element of a display device includes: forming a structure with a first liquid layer between a first micro device and a conductive pad of a substrate in which the first micro device is gripped by a sticking force produced by the first liquid layer; evaporating the first liquid layer such that the first micro device is bound to the substrate; determining if the first micro device is malfunctioned or misplaced; removing the first micro device when the first micro device is malfunctioned or misplaced; forming another structure with a second liquid layer between a second micro device and the conductive pad of the substrate in which the second micro device is gripped by a sticking force produced by the second liquid layer; and evaporating the second liquid layer such that the second micro device is bound to the substrate.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 31, 2022
    Inventor: Li-Yi CHEN
  • Patent number: 11289458
    Abstract: A micro light-emitting diode transparent display including a transparent substrate is provided. N pixels are defined on the transparent substrate. N sets of micro light-emitting diodes are on the transparent substrate and respectively located in the N pixels. A wall portion is on the transparent substrate and surrounding one of the N sets of the micro light-emitting diodes to form an enclosed region on the transparent substrate. A length of a periphery of the enclosed region is equal to or smaller than 85% of a length of an outer periphery of one of the N pixels in which said one of the N sets of the micro light-emitting diodes is located. An area of said one of the N pixels outside the enclosed region allows light to directly pass through the micro light-emitting diode transparent display.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: March 29, 2022
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventor: Li-Yi Chen
  • Publication number: 20220052226
    Abstract: A micro light emitting diode display includes a substrate, an electrode layer disposed on the substrate, a micro light emitting diode device disposed on the electrode layer, a metal layer disposed on the substrate and connected to the electrode layer, and first and second encapsulation layers. The substrate has an air passage extending to opposite surfaces thereof. The first encapsulation layer wraps the micro light emitting diode device. The second encapsulation layer covers the metal layer and has a material different from that of the first encapsulation layer. The metal layer has a visible area in a display region of the substrate that is not covered by the micro light emitting diode device. A part of the visible area is covered by the second encapsulation layer, and a proportion of the part to the visible area is equal to or greater than 60%.
    Type: Application
    Filed: November 2, 2021
    Publication date: February 17, 2022
    Inventor: Li-Yi CHEN
  • Patent number: 11239397
    Abstract: A micro light emitting diode display includes a display module and a hydrophobic layer. The display module includes a substrate, an electrode layer, and a micro light emitting diode device. The substrate has a first surface, a second surface opposite to the first surface and at least one air passage extending from the first surface to the second surface. The electrode layer is disposed on and in contact with the first surface of the substrate. The air passage has an opening on the first surface of the substrate, and the electrode layer is spaced apart from the opening. The micro light emitting diode device is disposed on the electrode layer and has a light emitting area that is less than or equal to 2500 ?m2. The hydrophobic layer at least partially covers a side of the display module.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: February 1, 2022
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventor: Li-Yi Chen
  • Patent number: 11217684
    Abstract: A method for rapidly gathering a sub-threshold swing from a thin film transistor is provided. The method includes: electrically connecting an operational amplifier and an anti-exponential component to a source terminal of the thin film transistor; performing a measuring process to the thin film transistor in which the measuring process is inputting multiple values of a gate voltage to a gate terminal, such that multiple values of an output voltage are correspondingly generated from the output terminal of the operational amplifier; and performing a fitting process to the output voltage corresponding to the thin film transistor in which the fitting process is fitting at least two of said multiple values of the output voltage to get the sub-threshold swing.
    Type: Grant
    Filed: May 19, 2019
    Date of Patent: January 4, 2022
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventor: Li-Yi Chen
  • Publication number: 20210391520
    Abstract: A micro light emitting diode display includes a substrate, an electrode layer and a micro light emitting diode device. The substrate has a first surface, a second surface opposite to the first surface, and at least one air passage extending from the first surface to the second surface. The electrode layer is disposed on and in contact with the first surface of the substrate. The air passage has an opening on the first surface of the substrate, and the electrode layer is spaced apart from the opening. The micro light emitting diode device is disposed on the electrode layer and has a light emitting area that is less than or equal to 2500 ?m2.
    Type: Application
    Filed: August 29, 2021
    Publication date: December 16, 2021
    Inventor: Li-Yi CHEN
  • Patent number: 11189771
    Abstract: A micro light emitting diode display includes a substrate, an electrode layer and a micro light emitting diode device. The substrate has a first surface, a second surface opposite to the first surface, and at least one air passage extending from the first surface to the second surface. The electrode layer is disposed on and in contact with the first surface of the substrate. The air passage has an opening on the first surface of the substrate, and the electrode layer is spaced apart from the opening. The micro light emitting diode device is disposed on the electrode layer and has a light emitting area that is less than or equal to 2500 ?m2.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: November 30, 2021
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventor: Li-Yi Chen
  • Patent number: 11075328
    Abstract: A method of forming a conductive area at a top surface of a light-emitting diode includes: preparing a substrate having a top surface with a conductive pad thereon; bonding a light-emitting diode having first and second type semiconductor layers and an active layer to the conductive pad; forming a polymer layer on the substrate such that a difference between a distance from a first surface of the polymer layer to the top surface of the substrate and a distance from a second surface of the polymer layer to a top surface of the light-emitting diode is greater than a distance from an interface between a second type semiconductor layer and an active layer to the top surface of the substrate; and etching the polymer layer till the second type semiconductor layer to expose the top surface of the light-emitting diode from the polymer layer.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: July 27, 2021
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventors: Li-Yi Chen, Yi-Ching Lin