Patents by Inventor Mike Ameen

Mike Ameen 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: 11756772
    Abstract: An ion source assembly and method has a source gas supply to provide a molecular carbon source gas to an ion source chamber. A source gas flow controller controls flow of the molecular carbon source gas to the ion source chamber. An excitation source excites the molecular carbon source gas to form carbon ions and radicals. An extraction electrode extracts the carbon ions from the ion source chamber, forming an ion beam. An oxidizing co-gas supply provides oxidizing co-gas to chamber. An oxidizing co-gas flow controller controls flow of the oxidizing co-gas to the chamber. The oxidizing co-gas decomposes and reacts with carbonaceous residues and atomic carbon forming carbon monoxide and carbon dioxide within the ion source chamber. A vacuum pump system removes the carbon monoxide and carbon dioxide, where deposition of atomic carbon within the ion source chamber is reduced and a lifetime of the ion source is increased.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: September 12, 2023
    Assignee: Axcelis Technologies, Inc.
    Inventors: David Sporleder, Neil Bassom, Neil K. Colvin, Mike Ameen, Xiao Xu
  • Publication number: 20200388468
    Abstract: An ion source assembly and method has a source gas supply to provide a molecular carbon source gas to an ion source chamber. A source gas flow controller controls flow of the molecular carbon source gas to the ion source chamber. An excitation source excites the molecular carbon source gas to form carbon ions and radicals. An extraction electrode extracts the carbon ions from the ion source chamber, forming an ion beam. An oxidizing co-gas supply provides oxidizing co-gas to chamber. An oxidizing co-gas flow controller controls flow of the oxidizing co-gas to the chamber. The oxidizing co-gas decomposes and reacts with carbonaceous residues and atomic carbon forming carbon monoxide and carbon dioxide within the ion source chamber. A vacuum pump system removes the carbon monoxide and carbon dioxide, where deposition of atomic carbon within the ion source chamber is reduced and a lifetime of the ion source is increased.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 10, 2020
    Inventors: David Sporleder, Neil Bassom, Neil K. Colvin, Mike Ameen, Xiao Xu
  • Patent number: 10403503
    Abstract: An ion implantation system has a first chamber and a process chamber with a heated chuck. A controller transfers the workpiece between the heated chuck and first chamber and selectively energizes the heated chuck first and second modes. In the first and second modes, the heated chuck is heated to a first and second temperature, respectively. The first temperature is predetermined. The second temperature is variable, whereby the controller determines the second temperature based on a thermal budget, an implant energy, and/or an initial temperature of the workpiece in the first chamber, and generally maintains the second temperature in the second mode. Transferring the workpiece from the heated chuck to the first chamber removes implant energy from the process chamber in the second mode. Heat may be further transferred from the heated chuck to a cooling platen by a transfer of the workpiece therebetween to sequentially cool the heated chuck.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: September 3, 2019
    Assignee: Axcelis Technologies, Inc.
    Inventors: Marvin Farley, Mike Ameen, Causon Ko-Chuan Jen
  • Publication number: 20180233367
    Abstract: An ion implantation system has a first chamber and a process chamber with a heated chuck. A controller transfers the workpiece between the heated chuck and first chamber and selectively energizes the heated chuck first and second modes. In the first and second modes, the heated chuck is heated to a first and second temperature, respectively. The first temperature is predetermined. The second temperature is variable, whereby the controller determines the second temperature based on a thermal budget, an implant energy, and/or an initial temperature of the workpiece in the first chamber, and generally maintains the second temperature in the second mode. Transferring the workpiece from the heated chuck to the first chamber removes implant energy from the process chamber in the second mode. Heat may be further transferred from the heated chuck to a cooling platen by a transfer of the workpiece therebetween to sequentially cool the heated chuck.
    Type: Application
    Filed: April 12, 2018
    Publication date: August 16, 2018
    Inventors: Marvin Farley, Mike Ameen, Causon Ko-Chuan Jen
  • Patent number: 9978599
    Abstract: An ion implantation system has a first chamber and a process chamber with a heated chuck. A controller transfers the workpiece between the heated chuck and first chamber and selectively energizes the heated chuck first and second modes. In the first and second modes, the heated chuck is heated to a first and second temperature, respectively. The first temperature is predetermined. The second temperature is variable, whereby the controller determines the second temperature based on a thermal budget, an implant energy, and/or an initial temperature of the workpiece in the first chamber, and generally maintains the second temperature in the second mode. Transferring the workpiece from the heated chuck to the first chamber removes implant energy from the process chamber in the second mode. Heat may be further transferred from the heated chuck to a cooling platen by a transfer of the workpiece therebetween to sequentially cool the heated chuck.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 22, 2018
    Assignee: Axcelis Technologies, Inc.
    Inventors: Marvin Farley, Mike Ameen, Causon Ko-Chuan Jen
  • Publication number: 20170352544
    Abstract: An ion implantation system has a first chamber and a process chamber with a heated chuck. A controller transfers the workpiece between the heated chuck and first chamber and selectively energizes the heated chuck first and second modes. In the first and second modes, the heated chuck is heated to a first and second temperature, respectively. The first temperature is predetermined. The second temperature is variable, whereby the controller determines the second temperature based on a thermal budget, an implant energy, and/or an initial temperature of the workpiece in the first chamber, and generally maintains the second temperature in the second mode. Transferring the workpiece from the heated chuck to the first chamber removes implant energy from the process chamber in the second mode. Heat may be further transferred from the heated chuck to a cooling platen by a transfer of the workpiece therebetween to sequentially cool the heated chuck.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 7, 2017
    Inventors: Marvin Farley, Mike Ameen, Causon Ko-Chuan Jen