Patents by Inventor Robert W. Filas

Robert W. Filas 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: 9837200
    Abstract: A micromagnetic device includes a first insulating layer formed above a substrate, a first seed layer formed above the first insulating layer, a first conductive winding layer selectively formed above the first seed layer, and a second insulating layer formed above the first conductive winding layer. The micromagnetic device also includes a first magnetic core layer formed above the second insulating layer, a third insulating layer formed above the first magnetic core layer, and a second magnetic core layer formed above the third insulating layer. The micromagnetic device still further includes a fourth insulating layer formed above the second magnetic core layer, a second seed layer formed above the fourth insulating layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: December 5, 2017
    Assignee: Altera Corporation
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Patent number: 9611561
    Abstract: An electroplating cell employable with an electroplating tool and method of operating the same. In one embodiment, the electroplating cell includes a cover configured to substantially seal the electroplating cell to an outside atmosphere during an electroplating process, and a porous tube couplable to an inert gas source configured to bubble an inert gas through an electrolyte containable therein. The electroplating cell also includes an anode, encased in an envelope of a semipermeable membrane, formed with an alloy of electroplating material, and a magnet configured to orient an axis of magnetization of the electroplating material for application to a wafer couplable thereto during an electroplating process.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: April 4, 2017
    Assignee: Enpirion, Inc.
    Inventors: Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Publication number: 20160211069
    Abstract: A micromagnetic device includes a first insulating layer formed above a substrate, a first seed layer formed above the first insulating layer, a first conductive winding layer selectively formed above the first seed layer, and a second insulating layer formed above the first conductive winding layer. The micromagnetic device also includes a first magnetic core layer formed above the second insulating layer, a third insulating layer formed above the first magnetic core layer, and a second magnetic core layer formed above the third insulating layer. The micromagnetic device still further includes a fourth insulating layer formed above the second magnetic core layer, a second seed layer formed above the fourth insulating layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device.
    Type: Application
    Filed: March 28, 2016
    Publication date: July 21, 2016
    Applicant: Enpirion Inc.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Patent number: 9299489
    Abstract: A micromagnetic device includes a first insulating layer formed above a substrate, a first seed layer formed above the first insulating layer, a first conductive winding layer selectively formed above the first seed layer, and a second insulating layer formed above the first conductive winding layer. The micromagnetic device also includes a first magnetic core layer formed above the second insulating layer, a third insulating layer formed above the first magnetic core layer, and a second magnetic core layer formed above the third insulating layer. The micromagnetic device still further includes a fourth insulating layer formed above the second magnetic core layer, a second seed layer formed above the fourth insulating layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: March 29, 2016
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Publication number: 20140104029
    Abstract: A micromagnetic device includes a first insulating layer formed above a substrate, a first seed layer formed above the first insulating layer, a first conductive winding layer selectively formed above the first seed layer, and a second insulating layer formed above the first conductive winding layer. The micromagnetic device also includes a first magnetic core layer formed above the second insulating layer, a third insulating layer formed above the first magnetic core layer, and a second magnetic core layer formed above the third insulating layer. The micromagnetic device still further includes a fourth insulating layer formed above the second magnetic core layer, a second seed layer formed above the fourth insulating layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device.
    Type: Application
    Filed: December 13, 2013
    Publication date: April 17, 2014
    Applicant: ENPIRION INC.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Patent number: 8618900
    Abstract: A micromagnetic device includes a first insulating layer formed above a substrate, a first seed layer formed above the first insulating layer, a first conductive winding layer selectively formed above the first seed layer, and a second insulating layer formed above the first conductive winding layer. The micromagnetic device also includes a first magnetic core layer formed above the second insulating layer, a third insulating layer formed above the first magnetic core layer, and a second magnetic core layer formed above the third insulating layer. The micromagnetic device still further includes a fourth insulating layer formed above the second magnetic core layer, a second seed layer formed above the fourth insulating layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: December 31, 2013
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Patent number: 8339232
    Abstract: A micromagnetic device includes a first insulating layer formed above a substrate, a first seed layer formed above the first insulating layer, a first conductive winding layer selectively formed above the first seed layer, and a second insulating layer formed above the first conductive winding layer. The micromagnetic device also includes a first magnetic core layer formed above the second insulating layer, a third insulating layer formed above the first magnetic core layer, and a second magnetic core layer formed above the third insulating layer. The micromagnetic device still further includes a fourth insulating layer formed above the second magnetic core layer, a second seed layer formed above the fourth insulating layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: December 25, 2012
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Patent number: 8133529
    Abstract: A method of forming a micromagnetic device including providing a substrate and forming a magnetic core layer over the substrate from a magnetic alloy. The magnetic alloy includes iron, cobalt and phosphorous. A content of the cobalt is in a range of 1.8 to 4.5 atomic percent. A content of the phosphorus is in a range of 20.1 to 30 atomic percent. A content of the iron is substantially a remaining proportion of the magnetic alloy.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: March 13, 2012
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas
  • Patent number: 8018315
    Abstract: A power converter including a power train, a controller and a driver. The power train includes a switch that conducts for a duty cycle and provides a regulated output characteristic for the power converter, and a micromagnetic device interposed between the switch and the output of the power converter. The micromagnetic device includes a substrate, and a magnetic core layer formed over the substrate from a magnetic alloy including iron, cobalt and phosphorous. A content of the cobalt is in a range of 1.8 to 4.5 atomic percent. A content of the phosphorus is in a range of 20.1 to 30 atomic percent. A content of the iron is substantially a remaining proportion of the magnetic alloy. The controller provides a signal to control the duty cycle of the switch. The driver provides a drive signal to the switch as a function of the signal from the controller.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: September 13, 2011
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas
  • Patent number: 8002961
    Abstract: An electrolyte and method of producing the same. In one embodiment, the electrolyte includes water, ascorbic acid, a phosphorous donor, ammonium perchlorate, ferrous perchlorate, cobalt perchlorate, and a buffering agent.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: August 23, 2011
    Assignee: Enpirion, Inc.
    Inventors: Trifon M. Liakopoulos, Robert W. Filas
  • Publication number: 20110181383
    Abstract: A micromagnetic device includes a first insulating layer formed above a substrate, a first seed layer formed above the first insulating layer, a first conductive winding layer selectively formed above the first seed layer, and a second insulating layer formed above the first conductive winding layer. The micromagnetic device also includes a first magnetic core layer formed above the second insulating layer, a third insulating layer formed above the first magnetic core layer, and a second magnetic core layer formed above the third insulating layer. The micromagnetic device still further includes a fourth insulating layer formed above the second magnetic core layer, a second seed layer formed above the fourth insulating layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device.
    Type: Application
    Filed: March 30, 2011
    Publication date: July 28, 2011
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Patent number: 7955868
    Abstract: A method of forming a micromagnetic device on a substrate including forming a first insulating layer above the substrate, a first seed layer above the first insulating layer, a first conductive winding layer above the first seed layer, and a second insulating layer above the first conductive winding layer. The method also includes forming a first magnetic core layer above the second insulating layer, a third insulating layer above the first magnetic core layer, and a second magnetic core layer above the third insulating layer. The method still further includes forming a fourth insulating layer above the second magnetic core layer, a second seed layer above the fourth insulating layer, and a second conductive winding layer above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: June 7, 2011
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Patent number: 7952459
    Abstract: A micromagnetic device including a substrate, and a magnetic core layer formed over the substrate from a magnetic alloy. The magnetic alloy includes iron, cobalt and phosphorous. A content of the cobalt is in a range of 1.8 to 4.5 atomic percent. A content of the phosphorus is in a range of 20.1 to 30 atomic percent. A content of the iron is substantially a remaining proportion of the magnetic alloy.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: May 31, 2011
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas
  • Patent number: 7920042
    Abstract: A micromagnetic device includes a first insulating layer formed above a substrate, a first seed layer formed above the first insulating layer, a first conductive winding layer selectively formed above the first seed layer, and a second insulating layer formed above the first conductive winding layer. The micromagnetic device also includes a first magnetic core layer formed above the second insulating layer, a third insulating layer formed above the first magnetic core layer, and a second magnetic core layer formed above the third insulating layer. The micromagnetic device still further includes a fourth insulating layer formed above the second magnetic core layer, a second seed layer formed above the fourth insulating layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: April 5, 2011
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Patent number: 7544995
    Abstract: A power converter including a power train, a controller and a driver. In one embodiment, the power train includes a switch that conducts for a duty cycle and provides a regulated output characteristic for the power converter, and a micromagnetic device. The micromagnetic device includes a first conductive winding layer selectively formed above a first seed layer, and first and second magnetic core layers formed thereabove. The micromagnetic device also includes a second seed layer formed above the second magnetic core layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device. The controller provides a signal to control the duty cycle of the switch, and the driver provides a drive signal to the switch as a function of the signal from the controller.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: June 9, 2009
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Publication number: 20090066300
    Abstract: A power converter including a power train, a controller and a driver. In one embodiment, the power train includes a switch that conducts for a duty cycle and provides a regulated output characteristic for the power converter, and a micromagnetic device. The micromagnetic device includes a first conductive winding layer selectively formed above a first seed layer, and first and second magnetic core layers formed thereabove. The micromagnetic device also includes a second seed layer formed above the second magnetic core layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device. The controller provides a signal to control the duty cycle of the switch, and the driver provides a drive signal to the switch as a function of the signal from the controller.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 12, 2009
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Publication number: 20090068761
    Abstract: A method of forming a micromagnetic device on a substrate including forming a first insulating layer above the substrate, a first seed layer above the first insulating layer, a first conductive winding layer above the first seed layer, and a second insulating layer above the first conductive winding layer. The method also includes forming a first magnetic core layer above the second insulating layer, a third insulating layer above the first magnetic core layer, and a second magnetic core layer above the third insulating layer. The method still further includes forming a fourth insulating layer above the second magnetic core layer, a second seed layer above the fourth insulating layer, and a second conductive winding layer above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 12, 2009
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
  • Publication number: 20090068347
    Abstract: A method of forming a micromagnetic device including providing a substrate and forming a magnetic core layer over the substrate from a magnetic alloy. The magnetic alloy includes iron, cobalt and phosphorous. A content of the cobalt is in a range of 1.8 to 4.5 atomic percent. A content of the phosphorus is in a range of 20.1 to 30 atomic percent. A content of the iron is substantially a remaining proportion of the magnetic alloy.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 12, 2009
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas
  • Publication number: 20090066468
    Abstract: A power converter including a power train, a controller and a driver. The power train includes a switch that conducts for a duty cycle and provides a regulated output characteristic for the power converter, and a micromagnetic device interposed between the switch and the output of the power converter. The micromagnetic device includes a substrate, and a magnetic core layer formed over the substrate from a magnetic alloy including iron, cobalt and phosphorous. A content of the cobalt is in a range of 1.8 to 4.5 atomic percent. A content of the phosphorus is in a range of 20.1 to 30 atomic percent. A content of the iron is substantially a remaining proportion of the magnetic alloy. The controller provides a signal to control the duty cycle of the switch. The driver provides a drive signal to the switch as a function of the signal from the controller.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 12, 2009
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas
  • Publication number: 20090066467
    Abstract: A micromagnetic device including a substrate, and a magnetic core layer formed over the substrate from a magnetic alloy. The magnetic alloy includes iron, cobalt and phosphorous. A content of the cobalt is in a range of 1.8 to 4.5 atomic percent. A content of the phosphorus is in a range of 20.1 to 30 atomic percent. A content of the iron is substantially a remaining proportion of the magnetic alloy.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 12, 2009
    Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas