Patents by Inventor Dahan QIAN

Dahan QIAN 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: 20230223275
    Abstract: Method for manufacturing a semiconductor device includes: forming a first area and a second area of a peripheral area on a substrate; forming a first lamination structure in the first area, and forming a second lamination structure in an array area and the second area; performing thermal treatment on the substrate so that atoms in a work function layer are diffused into a second dielectric layer, and an interface interaction occurs between the second dielectric layer and a first dielectric layer; removing the first lamination structure to the second dielectric layer, and removing the second lamination structure to the second dielectric layer; forming a fourth barrier layer and a second conductive layer, a content ratio of metallic element to non-metallic element in a first barrier layer being less than a content ratio of metallic element to non-metallic element in a second barrier layer and a third barrier layer.
    Type: Application
    Filed: June 21, 2022
    Publication date: July 13, 2023
    Inventors: Xiaojie LI, Dahan QIAN
  • Publication number: 20230034627
    Abstract: A semiconductor structure and a method for manufacturing same are provided. The semiconductor structure includes: a doped conductive layer, doped with dopant ions; a metal conductive layer, located above the doped conductive layer; a nitrogen-containing dielectric layer, located above the metal conductive layer; a first molybdenum nitride layer, located between the doped conductive layer and the metal conductive layer and configured to be electrically connected to the doped conductive layer and the metal conductive layer; and a second molybdenum nitride layer, located between the metal conductive layer and the nitrogen-containing dielectric layer, where an atomic ratio of nitrogen atoms in the second molybdenum nitride layer is greater than an atomic ratio of nitrogen atoms in the first molybdenum nitride layer.
    Type: Application
    Filed: February 10, 2022
    Publication date: February 2, 2023
    Inventors: Dahan QIAN, Jie Zhang, Juanjuan Huang, Jie Bai
  • Publication number: 20180219510
    Abstract: The application proposes a distributed solar energy concentrating and splitting utilization system, comprising N concentrating and splitting optical modules, each of the concentrating and splitting modules comprising of a condensing mechanism, a splitting mechanism and a photovoltaic power generating device, wherein the splitting mechanism is located at the spotlight. The light receiving surface of the light condensing mechanism and the light receiving surface of the light splitting mechanism are oppositely arranged. The light splitting film is arranged on the light receiving surface of the light splitting mechanism, and a light transmitting hole is arranged on the light condensing mechanism for collecting sunlight and irradiating the light splitting mechanism.
    Type: Application
    Filed: August 3, 2016
    Publication date: August 2, 2018
    Applicant: INSTITUTE OF ADVANCED TECHNOLOGY, UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Wen LIU, Fangxin ZHANG, Dahan QIAN, Ming LI, Luqing LIU, Qixing WANG