Patents by Inventor Chih-Chien Liang

Chih-Chien Liang 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: 20140322828
    Abstract: A method for manufacturing a magnetoresistance component is provided. A substrate is provided. A circuit structure layer including an interconnect structure is formed on the substrate, wherein the interconnect structure comprises a metal pad. A dielectric layer is formed on the circuit structure. A metal damascene structure is formed in the dielectric layer. A patterned magnetoresistance component is formed above the metal damascene structure to electrically connect to the metal damascene structure.
    Type: Application
    Filed: July 7, 2014
    Publication date: October 30, 2014
    Inventors: Fu-Tai Liou, Chien-Min Lee, Chih-Chien Liang, Nai-Chung Fu
  • Patent number: 8871529
    Abstract: A method or manufacturing an integrated circuit structure with a magnetoresistance component is provided. A substrate is provided. A circuit structure layer including a metal pad is formed on the substrate. A dielectric layer is formed on the circuit structure. A metal damascene structure is formed in the dielectric layer. An opening is formed in the dielectric layer so as to form a step-drop. A magnetoresistance material layer is formed on the dielectric layer after forming the metal damascene structure and the opening. A photolithography process is applied to pattern the magnetoresistance material layer to form a magnetoresistance component electrically connected to the metal damascene structure.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: October 28, 2014
    Inventors: Fu-Tai Liou, Chien-Min Lee, Chih-Chien Liang, Nai-Chung Fu
  • Publication number: 20130115719
    Abstract: A method or manufacturing an integrated circuit structure with a magnetoresistance component is provided. A substrate is provided. A circuit structure layer including a metal pad is formed on the substrate. A dielectric layer is formed on the circuit structure. A metal damascene structure is formed in the dielectric layer. An opening is formed in the dielectric layer so as to form a step-drop. A magnetoresistance material layer is formed on the dielectric layer after forming the metal damascene structure and the opening A photolithography process is applied to pattern the magnetoresistance material layer to form a magnetoresistance component electrically connected to the metal damascene structure.
    Type: Application
    Filed: March 22, 2012
    Publication date: May 9, 2013
    Applicant: Voltafield Technology Corporation
    Inventors: FU-TAI LIOU, Chien-Min Lee, Chih-Chien Liang, Nai-Chung Fu
  • Patent number: 8347487
    Abstract: A fabricating method of a magnetoresistance sensor is provided with cost effective and process flexibility features. Firstly, a substrate is provided. Then, at least one magnetoresistance structure and at least one bonding pad are formed over the substrate, wherein the bonding pad is electrically connected with the magnetoresistance structure. Then, a passivation layer is formed over the magnetoresistance structure and the bonding pad. Then, a magnetic shielding and concentrator structure is formed over the passivation layer at a location corresponding to the magnetoresistance structure. Finally, bonding pad openings is formed on the passivation layer by patterned polyimide, thereby exposing the bonding pad. After bonding pad was opened, the patterned polyimide can be removed or retained as an additional protection layer.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: January 8, 2013
    Assignee: Voltafield Technology Corporation
    Inventors: Fu-Tai Liou, Chih-Chien Liang, Chien-Min Lee
  • Publication number: 20120222291
    Abstract: A fabricating method of a magnetoresistance sensor is provided with cost effective and process flexibility features. Firstly, a substrate is provided. Then, at least one magnetoresistance structure and at least one bonding pad are formed over the substrate, wherein the bonding pad is electrically connected with the magnetoresistance structure. Then, a passivation layer is formed over the magnetoresistance structure and the bonding pad. Then, a magnetic shielding and concentrator structure is formed over the passivation layer at a location corresponding to the magnetoresistance structure. Finally, bonding pad openings is formed on the passivation layer by patterned polyimide, thereby exposing the bonding pad. After bonding pad was opened, the patterned polyimide can be removed or retained as an additional protection layer.
    Type: Application
    Filed: June 30, 2011
    Publication date: September 6, 2012
    Applicant: Voltafield Technology Corporation
    Inventors: FU-TAI LIOU, Chih-Chien Liang, Chien-Min Lee