Patents by Inventor James Prager
James Prager 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: 11227745Abstract: Some embodiments include a plasma sheath control system that includes an RF power supply producing an A sinusoidal waveform with a frequency greater than 20 kHz and a peak voltage greater than 1 kV and a plasma chamber electrically coupled with the RF power supply, the plasma chamber having a plurality of ions that are accelerated into a surface disposed with energies greater than about 1 kV, and the plasma chamber produces a plasma sheath within the plasma chamber from the sinusoidal waveform. The plasma sheath control system includes a blocking diode electrically connected between the RF power supply and the plasma chamber and a capacitive discharge circuit electrically coupled with the RF power supply, the plasma chamber, and the blocking diode; the capacitive discharge circuit discharges capacitive charges within the plasma chamber with a peak voltage greater than 1 kV and a discharge time that less than 250 nanoseconds.Type: GrantFiled: August 9, 2019Date of Patent: January 18, 2022Assignee: Eagle Harbor Technologies, Inc.Inventors: Kenneth Miller, Timothy Ziemba, James Prager, Ilia Slobodov
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Publication number: 20210408917Abstract: Some embodiments include methods and systems for wafer biasing in a plasma chamber. A method, for example, may include: generating a first high voltage by a first pulsed voltage source using DC voltages and coupling the first high voltage to a wafer in the plasma chamber via at least one direct connection, the at least one direct connection enabling ion energy control in the plasma chamber; generating one or more of low and medium voltages by a second pulsed voltage source; coupling, capacitively, the one or more of low and medium voltages to the wafer; and pulsing the first high voltage and the one or more of low and medium voltages to achieve a configurable ion energy distribution in the wafer.Type: ApplicationFiled: July 1, 2021Publication date: December 30, 2021Inventors: Kenneth Miller, Timothy Ziemba, John Carscadden, Ilia Slobodov, James Prager
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Publication number: 20210351006Abstract: Various RF plasma systems are disclosed that do not require a matching network. In some embodiments, the RF plasma system includes an energy storage capacitor; a switching circuit coupled with the energy storage capacitor, the switching circuit producing a plurality of pulses with a pulse amplitude and a pulse frequency, the pulse amplitude being greater than 100 volts; a resonant circuit coupled with the switching circuit. In some embodiments, the resonant circuit includes: a transformer having a primary side and a secondary side; and at least one of a capacitor, an inductor, and a resistor. In some embodiments, the resonant circuit having a resonant frequency substantially equal to the pulse frequency, and the resonant circuit increases the pulse amplitude to a voltage greater than 2 kV.Type: ApplicationFiled: April 15, 2021Publication date: November 11, 2021Inventors: James Prager, Timothy Ziemba
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Publication number: 20210327682Abstract: A plasma deposition system comprising a wafer platform, a second electrode, a first electrode, a first high voltage pulser, and a second high voltage pulser. In some embodiments, the second electrode may be disposed proximate with the wafer platform. In some embodiments, the second electrode can include a disc shape with a central aperture; a central axis, an aperture diameter, and an outer diameter. In some embodiments, the first electrode may be disposed proximate with the wafer platform and within the central aperture of the second electrode. In some embodiments, the first electrode can include a disc shape, a central axis, and an outer diameter. In some embodiments, the first high voltage pulser can be electrically coupled with the first electrode. In some embodiments, the second high voltage pulser can be electrically coupled with the second electrode.Type: ApplicationFiled: June 25, 2021Publication date: October 21, 2021Inventors: Timothy Ziemba, Ilia Slobodov, John Carscadden, Kenneth Miller, James Prager
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Publication number: 20210288582Abstract: A high voltage power system is disclosed. In some embodiments, the high voltage power system includes a high voltage pulsing power supply; a transformer electrically coupled with the high voltage pulsing power supply; an output electrically coupled with the transformer and configured to output high voltage pulses with an amplitude greater than 1 kV and a frequency greater than 1 kHz; and a bias compensation circuit arranged in parallel with the output. In some embodiments, the bias compensation circuit can include a blocking diode; and a DC power supply arranged in series with the blocking diode.Type: ApplicationFiled: March 26, 2021Publication date: September 16, 2021Inventors: Timothy Ziemba, Ilia Slobodov, Alex Henson, Morgan Quinley, John Carscadden, James Prager, Kenneth Miller
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Patent number: 11095280Abstract: Embodiments of the invention provide IGBT circuit modules with increased efficiencies. These efficiencies can be realized in a number of ways. In some embodiments, the gate resistance and/or voltage can be minimized. In some embodiments, the IGBT circuit module can be switched using an isolated receiver such as a fiber optic receiver. In some embodiments, a single driver can drive a single IGBT. And in some embodiments, a current bypass circuit can be included. Various other embodiments of the invention are disclosed.Type: GrantFiled: July 17, 2019Date of Patent: August 17, 2021Assignee: Eagle Harbor Technologies, Inc.Inventors: Timothy Ziemba, Kenneth E. Miller, John G. Carscadden, James Prager
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Publication number: 20210249227Abstract: Some embodiments include a pulsing power supply comprising a power supply and a transformer comprising: a transformer core; a primary winding wrapped around a portion of the transformer core, the primary winding having a first lead and a second lead; and a secondary winding wrapped around a portion of the transformer core. The pulsing power supply may also include a first switch electrically connected with the first lead of the primary winding and the power supply; and a second switch electrically connected with the second lead of the primary winding and the power supply, wherein the first switch and the second switch are opened and closed at different time intervals. The pulsing power supply may also include a pulsing output electrically coupled with the secondary winding of the transformer that outputs pulses having a voltage greater than about 2 kV and with pulse frequencies greater than 1 kHz.Type: ApplicationFiled: April 19, 2021Publication date: August 12, 2021Inventors: Christopher Bowman, Timothy Ziemba, Kenneth Miller, Kevin Muggli, Eric Hanson, James Prager
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Patent number: 11075058Abstract: A plasma deposition system comprising a wafer platform, a second electrode, a first electrode, a first high voltage pulser, and a second high voltage pulser. In some embodiments, the second electrode may be disposed proximate with the wafer platform. In some embodiments, the second electrode can include a disc shape with a central aperture; a central axis, an aperture diameter, and an outer diameter. In some embodiments, the first electrode may be disposed proximate with the wafer platform and within the central aperture of the second electrode. In some embodiments, the first electrode can include a disc shape, a central axis, and an outer diameter. In some embodiments, the first high voltage pulser can be electrically coupled with the first electrode. In some embodiments, the second high voltage pulser can be electrically coupled with the second electrode.Type: GrantFiled: December 19, 2019Date of Patent: July 27, 2021Assignee: Eagle Harbor Technologies, Inc.Inventors: Timothy Ziemba, Ilia Slobodov, John Carscadden, Kenneth Miller, James Prager
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Publication number: 20210151295Abstract: Some embodiments include a high voltage pulsing circuit comprising: a high voltage pulsing power supply; a transformer electrically coupled with the high voltage pulsing power supply; an output electrically coupled with the transformer and configured to output high voltage pulses with an amplitude greater than 1 kV and a pulse repetition frequency greater than 1 kHz; a bias compensation circuit arranged in parallel with the output the bias compensation circuit comprising; first inductance comprising the inductive elements and any stray inductance between the bias compensation circuit and the high voltage pulsing power supply; and second inductance comprising the inductive elements and any stray inductance between the bias compensation circuit and the output.Type: ApplicationFiled: November 16, 2020Publication date: May 20, 2021Inventors: Timothy Ziemba, Morgan Quinley, Ilia Slobodov, Alex Henson, John Carscadden, James Prager, Kenneth Miller
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Patent number: 11004660Abstract: Various RF plasma systems are disclosed that do not require a matching network. In some embodiments, the RF plasma system includes an energy storage capacitor; a switching circuit coupled with the energy storage capacitor, the switching circuit producing a plurality of pulses with a pulse amplitude and a pulse frequency, the pulse amplitude being greater than 100 volts; a resonant circuit coupled with the switching circuit. In some embodiments, the resonant circuit includes: a transformer having a primary side and a secondary side; and at least one of a capacitor, an inductor, and a resistor. In some embodiments, the resonant circuit having a resonant frequency substantially equal to the pulse frequency, and the resonant circuit increases the pulse amplitude to a voltage greater than 2 kV.Type: GrantFiled: November 26, 2019Date of Patent: May 11, 2021Assignee: Eagle Harbor Technologies, Inc.Inventors: James Prager, Timothy Ziemba
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Patent number: 10978955Abstract: A high voltage power system is disclosed. In some embodiments, the high voltage power system includes a high voltage pulsing power supply; a transformer electrically coupled with the high voltage pulsing power supply; an output electrically coupled with the transformer and configured to output high voltage pulses with an amplitude greater than 1 kV and a frequency greater than 1 kHz; and a bias compensation circuit arranged in parallel with the output. In some embodiments, the bias compensation circuit can include a blocking diode; and a DC power supply arranged in series with the blocking diode.Type: GrantFiled: August 29, 2019Date of Patent: April 13, 2021Assignee: Eagle Harbor Technologies, Inc.Inventors: Timothy Ziemba, Ilia Slobodov, Alex Henson, Morgan Quinley, John Carscadden, James Prager, Kenneth Miller
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Patent number: 10903047Abstract: Some embodiments include a plasma system comprising: a plasma chamber, an RF plasma generator, a bias generator, and a controller. The RF plasma generator may be electrically coupled with the plasma chamber and may produce a plurality of RF bursts, each of the plurality of RF bursts including RF waveforms, each of the plurality of RF bursts having an RF burst turn on time and an RF burst turn off time. The bias generator may be electrically coupled with the plasma chamber and may produce a plurality of bias bursts, each of the plurality of bias bursts including bias pulses, each of the plurality of bias bursts having an bias burst turn on time and an bias burst turn off time. In some embodiments the controller is in communication with the RF plasma generator and the bias generator that controls the timing of various bursts or waveforms.Type: GrantFiled: January 31, 2020Date of Patent: January 26, 2021Assignee: Eagle Harbor Technologies, Inc.Inventors: Timothy Ziemba, Kenneth Miller, James Prager, Kevin Muggli, Eric Hanson
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Publication number: 20210013011Abstract: Some embodiments include a high voltage, high frequency switching circuit.Type: ApplicationFiled: September 25, 2020Publication date: January 14, 2021Inventors: James PRAGER, Timothy ZIEMBA, Kenneth Miller, Ilia Slobodov
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Publication number: 20200373114Abstract: Some embodiments include a resonant converter klystron driver. A resonant converter klystron driver, for example, may include an input power supply; a full-bridge circuit coupled with the input power supply; a resonant circuit coupled with the full-bridge; a step-up transformer coupled with the resonant circuit; a rectifier coupled with a step-up transformer; a filter stage coupled with the rectifier; and an output coupled with the filter stage. In some embodiments, the output could be coupled with a klystron.Type: ApplicationFiled: May 23, 2020Publication date: November 26, 2020Inventors: James Prager, Timothy Ziemba, Kenneth Miller, John Carscadden, Alex Henson, Steven Wilson
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Publication number: 20200357607Abstract: Some embodiments include a plasma system comprising: a plasma chamber, an RF plasma generator, a bias generator, and a controller. The RF plasma generator may be electrically coupled with the plasma chamber and may produce a plurality of RF bursts, each of the plurality of RF bursts including RF waveforms, each of the plurality of RF bursts having an RF burst turn on time and an RF burst turn off time. The bias generator may be electrically coupled with the plasma chamber and may produce a plurality of bias bursts, each of the plurality of bias bursts including bias pulses, each of the plurality of bias bursts having an bias burst turn on time and an bias burst turn off time. In some embodiments the controller is in communication with the RF plasma generator and the bias generator that controls the timing of various bursts or waveforms.Type: ApplicationFiled: July 24, 2020Publication date: November 12, 2020Inventors: Timothy Ziemba, Kenneth Miller, James Prager, Kevin Muggli, Eric Hanson
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Patent number: 10811230Abstract: A plasma deposition system comprising a wafer platform, a second electrode, a first electrode, a first high voltage pulser, and a second high voltage pulser. In some embodiments, the second electrode may be disposed proximate with the wafer platform. In some embodiments, the second electrode can include a disc shape with a central aperture; a central axis, an aperture diameter, and an outer diameter. In some embodiments, the first electrode may be disposed proximate with the wafer platform and within the central aperture of the second electrode. In some embodiments, the first electrode can include a disc shape, a central axis, and an outer diameter. In some embodiments, the first high voltage pulser can be electrically coupled with the first electrode. In some embodiments, the second high voltage pulser can be electrically coupled with the second electrode.Type: GrantFiled: July 29, 2019Date of Patent: October 20, 2020Assignee: Eagle Harbor Technologies, Inc.Inventors: Timothy Ziemba, Ilia Slobodov, John Carscadden, Kenneth Miller, James Prager
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Patent number: 10796887Abstract: Some embodiments include a high voltage, high frequency switching circuit. In some embodiments, the high voltage, high frequency switching circuit includes a high voltage switching power supply that produces pulses having a voltage greater than 1 kV and with frequencies greater than 10 kHz; a transformer having a primary side and secondary side; an output electrically coupled with the secondary side of the transformer; and a primary sink electrically coupled with the primary side of the transformer and in parallel with the high voltage switching power supply, the primary sink comprising at least one resistor that discharges a load coupled with the output.Type: GrantFiled: January 8, 2020Date of Patent: October 6, 2020Assignee: Eagle Harbor Technologies, Inc.Inventors: James Prager, Timothy Ziemba, Kenneth Miller, Ilia Slobodov
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Patent number: 10790816Abstract: Embodiments described herein include a solid-state switch tube replacement for the radar system such as, for example, the SPY-1 radar system. Some embodiments provide for a technology for the precision switching that enables IGBT power modules to operate robustly in a series configuration and/or a parallel configuration to produce precision switching at high voltage (e.g., 20 kV and above) and high frequencies (e.g., 1 MHz and above).Type: GrantFiled: January 27, 2015Date of Patent: September 29, 2020Assignee: Eagle Harbor Technologies, Inc.Inventors: Timothy Ziemba, Kenneth E. Miller, John Carscadden, James Prager
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Patent number: 10734906Abstract: A pulse generator is disclosed that includes at least the following stages a driver stage, a transformer stage, a rectifier stage, and an output stage. The driver stage may include at least one solid state switch such as, for example, of one or more IGBTs and/or one or more MOSFETs. The driver stage may also have a stray inductance less than 1,000 nH. The transformer stage may be coupled with the driver stage and/or with a balance stage and may include one or more transformers. The rectifier stage may be coupled with the transformer stage and may have a stray inductance less than 1,000 nH. The output stage may be coupled with the rectifier stage. The output stage may output a signal pulse with a voltage greater than 2 kilovolts and a frequency greater than 5 kHz. In some embodiments, the output stage may be galvanically isolated from a reference potential.Type: GrantFiled: January 17, 2019Date of Patent: August 4, 2020Assignee: Eagle Harbor Technologies, Inc.Inventors: Kenneth E. Miller, Timothy Ziemba, Ilia Slobodov, John G. Carscadden, James Prager
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Publication number: 20200219702Abstract: Some embodiments include a high voltage, high frequency switching circuit. In some embodiments, the high voltage, high frequency switching circuit includes a high voltage switching power supply that produces pulses having a voltage greater than 1 kV and with frequencies greater than 10 kHz; a transformer having a primary side and secondary side; an output electrically coupled with the secondary side of the transformer; and a primary sink electrically coupled with the primary side of the transformer and in parallel with the high voltage switching power supply, the primary sink comprising at least one resistor that discharges a load coupled with the output.Type: ApplicationFiled: January 8, 2020Publication date: July 9, 2020Inventors: James PRAGER, Timothy ZIEMBA, Kenneth MILLER, Ilia SLOBODOV