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).
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Patent number: 9837200Abstract: 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: GrantFiled: March 28, 2016Date of Patent: December 5, 2017Assignee: Altera CorporationInventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Patent number: 9611561Abstract: 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: GrantFiled: September 10, 2007Date of Patent: April 4, 2017Assignee: Enpirion, Inc.Inventors: Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Publication number: 20160211069Abstract: 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: ApplicationFiled: March 28, 2016Publication date: July 21, 2016Applicant: Enpirion Inc.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Patent number: 9299489Abstract: 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: GrantFiled: December 13, 2013Date of Patent: March 29, 2016Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Publication number: 20140104029Abstract: 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: ApplicationFiled: December 13, 2013Publication date: April 17, 2014Applicant: ENPIRION INC.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Patent number: 8618900Abstract: 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: GrantFiled: December 20, 2012Date of Patent: December 31, 2013Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Patent number: 8339232Abstract: 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: GrantFiled: March 30, 2011Date of Patent: December 25, 2012Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Patent number: 8133529Abstract: 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: GrantFiled: September 10, 2007Date of Patent: March 13, 2012Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas
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Patent number: 8018315Abstract: 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: GrantFiled: September 10, 2007Date of Patent: September 13, 2011Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas
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Patent number: 8002961Abstract: 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: GrantFiled: September 10, 2007Date of Patent: August 23, 2011Assignee: Enpirion, Inc.Inventors: Trifon M. Liakopoulos, Robert W. Filas
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Publication number: 20110181383Abstract: 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: ApplicationFiled: March 30, 2011Publication date: July 28, 2011Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Patent number: 7955868Abstract: 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: GrantFiled: September 10, 2007Date of Patent: June 7, 2011Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Patent number: 7952459Abstract: 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: GrantFiled: September 10, 2007Date of Patent: May 31, 2011Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas
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Patent number: 7920042Abstract: 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: GrantFiled: September 10, 2007Date of Patent: April 5, 2011Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Patent number: 7544995Abstract: 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: GrantFiled: September 10, 2007Date of Patent: June 9, 2009Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Publication number: 20090066300Abstract: 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: ApplicationFiled: September 10, 2007Publication date: March 12, 2009Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Publication number: 20090068761Abstract: 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: ApplicationFiled: September 10, 2007Publication date: March 12, 2009Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas, Amrit Panda
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Publication number: 20090068347Abstract: 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: ApplicationFiled: September 10, 2007Publication date: March 12, 2009Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas
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Publication number: 20090066468Abstract: 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: ApplicationFiled: September 10, 2007Publication date: March 12, 2009Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas
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Publication number: 20090066467Abstract: 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: ApplicationFiled: September 10, 2007Publication date: March 12, 2009Inventors: Ashraf W. Lotfi, Trifon M. Liakopoulos, Robert W. Filas