Patents by Inventor Chengyu Niu

Chengyu Niu 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: 20120049997
    Abstract: The present disclosure is directed to a thin film resistor structure that includes a resistive element electrically connecting first conductor layers of adjacent interconnect structures. The resistive element is covered by a dielectric cap layer that acts as a stabilizer and heat sink for the resistive element. Each interconnect includes a second conductor layer over the first conductive layer. The thin film resistor includes a chromium silicon resistive element covered by a silicon nitride cap layer.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 1, 2012
    Applicants: STMICROELECTRONICS, INC., STMICROELECTRONICS ASIA PACIFIC PTE LTD.
    Inventors: Ting Fang Lim, Chengyu Niu, Olivier Le Neel, Calvin Leung
  • Publication number: 20100073122
    Abstract: A trimmable resistor for use in an integrated circuit is trimmed using a heater. The heater is selectively coupled to a voltage source. The application of voltage to the heater causes the heater temperature to increase and produce heat. The heat permeates through a thermal separator to the trimmable resistor. The resistance of the trimmable resistor is permanently increased or decreased when the temperature of the resistor is increased to a value within a particular range of temperatures.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 25, 2010
    Applicants: STMICROELECTRONICS, INC., STMICROELECTRONICS (GRENOBLE) SAS
    Inventors: Olivier Le Neel, Pascale Dumont-Girard, Chengyu Niu, Fuchao Wang, Michel Arnoux
  • Publication number: 20070232060
    Abstract: A hybrid ionized physical vapor deposition technique to form liner films for vias, trenches, and other structures of integrated circuits. The techniques involves depositing liner materials within a via, hole, trench, or other structure in a neutral state, using, for example, physical vapor deposition. The liner materials deposited in this step have an ionization ratio of less than ten percent, and no bias potential is applied to an underlying substrate. The technique also involves depositing liner materials in ionized form in the same via using ionized physical vapor deposition. The liner materials deposited in this step have an ionization ratio far more than ten percent, and an optional bias potential may be applied to the underlying substrate. After liner film is formed, any other suitable actions or processing steps may take place including building additional metallization and dielectric layers and vias or trenches to produce a multi-level interconnect system.
    Type: Application
    Filed: February 15, 2007
    Publication date: October 4, 2007
    Applicant: STMicroelectronics, Inc.
    Inventor: Chengyu Niu