Patents by Inventor Roger Yen-Luen Tsai

Roger Yen-Luen Tsai 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).

  • Patent number: 6589874
    Abstract: A method for forming a copper conductor in an electronic structure by first depositing a copper composition in a receptacle formed in the electronic structure, and then adding impurities into the copper composition such that its electromigration resistance is improved. In the method, the copper composition can be deposited by a variety of techniques such as electroplating, physical vapor deposition and chemical vapor deposition. The impurities which can be implanted include those of C, O, Cl, S and N at a suitable concentration range between about 0.01 ppm by weight and about 1000 ppm by weight. The impurities can be added by different methods such as ion implantation, annealing and diffusion.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: July 8, 2003
    Assignee: International Business Machines Corporation
    Inventors: Panayotis Constantinou Andricacos, Cyril Cabral, Jr., Christopher Carr Parks, Kenneth Parker Rodbell, Roger Yen-Luen Tsai
  • Publication number: 20020115292
    Abstract: A method for forming a copper conductor in an electronic structure by first depositing a copper composition in a receptacle formed in the electronic structure, and then adding impurities into the copper composition such that its electromigration resistance is improved is disclosed. In the method, the copper composition can be deposited by a variety of techniques such as electroplating, physical vapor deposition and chemical vapor deposition. The impurities which can be implanted include those of C, O, Cl, S and N at a suitable concentration range between about 0.01 ppm by weight and about 1000 ppm by weight. The impurities can be added by three different methods. In the first method, a copper seed layer is first deposited into a receptacle and an ion implantation process is carried out on the seed layer, which is followed by electroplating copper into the receptacle.
    Type: Application
    Filed: July 26, 2001
    Publication date: August 22, 2002
    Applicant: International Business Machines Corporation
    Inventors: Panayotis Constantinou Andricacos, Cyril Cabral, Christopher Carr Parks, Kenneth Parker Rodbell, Roger Yen-Luen Tsai
  • Patent number: 6268291
    Abstract: A method for forming a copper conductor in an electronic structure by first depositing a copper composition in a receptacle formed in the electronic structure, and then adding impurities into the copper composition such that its electromigration resistance is improved is disclosed. In the method, the copper composition can be deposited by a variety of techniques such as electroplating, physical vapor deposition and chemical vapor deposition. The impurities which can be implanted include those of C, O, Cl, S and N at a suitable concentration range between about 0.01 ppm by weight and about 1000 ppm by weight. The impurities can be added by three different methods. In the first method, a copper seed layer is first deposited into a receptacle and an ion implantation process is carried out on the seed layer, which is followed by electroplating copper into the receptacle.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: July 31, 2001
    Assignee: International Business Machines Corporation
    Inventors: Panayotis Constantinou Andricacos, Cyril Cabral, Jr., Christopher Carr Parks, Kenneth Parker Rodbell, Roger Yen-Luen Tsai
  • Patent number: 5781430
    Abstract: A method and system for optimizing a steady-state performance of a process having multiple inputs and multiple output-responses is provided. The method and system provide a unified and systematic way of optimizing nominal, statistical and multi-criteria performance of the process. The process can be inter alia a semiconductor manufacturing process or a business process.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: July 14, 1998
    Assignee: International Business Machines Corporation
    Inventor: Roger Yen-Luen Tsai