Patents by Inventor Kaochao Chen

Kaochao 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: 20240145533
    Abstract: A high voltage transistor may include a stepped dielectric layer between a field plate structure and a channel region of the high voltage transistor in a substrate. The stepped dielectric layer may increase the breakdown voltage of the high voltage transistor by reducing the electric field strength near the drain region of the high voltage transistor. In particular, a portion of the stepped dielectric layer near the drain region includes a thickness that is greater relative to a thickness of another portion of the stepped dielectric layer near the gate structure. The increased thickness near the drain region provides increased electric field suppression near the drain region (which operates at high voltages). In this way, the stepped dielectric layer enables the high voltage transistor described herein to achieve higher breakdown voltages without increasing the distance between the gate structure and the drain region of a high voltage transistor.
    Type: Application
    Filed: April 17, 2023
    Publication date: May 2, 2024
    Inventors: Kaochao CHEN, Chia-Cheng HO, Chia-Jui LEE, Chia-Yu WEI
  • Publication number: 20230326958
    Abstract: Some implementations described herein provide techniques and apparatuses for forming a semiconductor device including a metal-insulator-metal capacitor. The metal-insulator-metal capacitor includes a dielectric pad layer having a portion between a capacitor bottom metal electrode layer and a portion of an insulator layer. The dielectric pad layer may preserve a thickness of the insulator layer to reduce a likelihood of a leakage between a capacitor top metal electrode layer and the capacitor bottom metal electrode layer. The dielectric pad layer may also enable a reduction in a thickness of the insulator layer to increase a capacitance of the metal-insulator-metal capacitor.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 12, 2023
    Inventors: Yuan-Sheng HUANG, Kaochao CHEN
  • Publication number: 20230178633
    Abstract: The present disclosure relates a method of manufacturing an integrated chip structure. The method forms an intermediate first material layer over a substrate and an intermediate second material layer on the intermediate first material layer. The intermediate second material layer is patterned to form an insulating layer. The intermediate first material layer is patterned to form a first material layer having an outermost sidewall indented inward from an outermost sidewall of the insulating layer. An ion bombardment process is performed on the insulating layer to dislodge one or more atoms from the insulating layer. A re-deposition process is performed to re-deposit the one or more atoms onto the outermost sidewall of the first material layer and to form a self-filling spacer below the insulating layer.
    Type: Application
    Filed: February 16, 2022
    Publication date: June 8, 2023
    Inventor: Kaochao Chen
  • Publication number: 20220336593
    Abstract: An integrated chip includes a gate structure overlying a substrate between a source region and a drain region. A field plate is disposed within a first dielectric layer overlying the substrate. The field plate is laterally offset from the gate structure by a non-zero distance in a direction towards the drain region. An isolation structure is disposed within the substrate. The field plate directly overlies at least a portion of the isolation structure.
    Type: Application
    Filed: June 30, 2022
    Publication date: October 20, 2022
    Inventors: Kaochao Chen, Chia-Cheng Ho, Ming Chyi Liu
  • Patent number: 11411086
    Abstract: An integrated chip includes a field plate overlying an isolation structure. A gate electrode overlies a substrate between a source region and a drain region. An etch stop layer laterally extends from an upper surface of the gate electrode to a front-side of the substrate. The etch stop layer overlies a drift region disposed between the source region and the drain region. The field plate is disposed within a first inter-level dielectric (ILD) layer overlying the substrate. The field plate extends from a top surface of the first ILD layer to an upper surface of the etch stop layer. The isolation structure is disposed within the substrate and extends from the front-side of the substrate to a point below the front-side of the substrate. The isolation structure is disposed laterally between the gate electrode and the drain region.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: August 9, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kaochao Chen, Chia-Cheng Ho, Ming Chyi Liu
  • Publication number: 20210296451
    Abstract: An integrated chip includes a field plate overlying an isolation structure. A gate electrode overlies a substrate between a source region and a drain region. An etch stop layer laterally extends from an upper surface of the gate electrode to a front-side of the substrate. The etch stop layer overlies a drift region disposed between the source region and the drain region. The field plate is disposed within a first inter-level dielectric (ILD) layer overlying the substrate. The field plate extends from a top surface of the first ILD layer to an upper surface of the etch stop layer. The isolation structure is disposed within the substrate and extends from the front-side of the substrate to a point below the front-side of the substrate. The isolation structure is disposed laterally between the gate electrode and the drain region.
    Type: Application
    Filed: March 17, 2020
    Publication date: September 23, 2021
    Inventors: Kaochao Chen, Chia-Cheng Ho, Ming Chyi Liu