Patents by Inventor Fred Chen
Fred Chen 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: 8844546Abstract: Embodiments of the present invention generally relate to an apparatus and a method for cleaning a semiconductor substrate after a polishing process. Particularly, embodiments of the present invention relates to an apparatus and method for cleaning a substrate using pressurized fluid. One embodiment of the present invention comprises two rollers to support and rotate a substrate in a substantially vertical orientation, a pressure wheel to apply a force to engage the substrate with the two rollers, and a swinging nozzle configured to dispense a pressurized fluid towards the substrate.Type: GrantFiled: October 1, 2008Date of Patent: September 30, 2014Assignee: Applied Materials, Inc.Inventors: Hui (Fred) Chen, Allen L. D'Ambra
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Patent number: 8848399Abstract: A VHF switching power converter comprising one or more VHF switching frequency resonant synchronous rectifiers receives an output from an inverter and delivers a DC output to a load. The power converter includes a controller for controlling at least one of the one or more VHF switching frequency resonant synchronous rectifiers based on feedback derived from a waveform of at least one of the rectifiers. The controller controls a phase angle of at least one of the rectifiers with a delay locked loop. The power converter delivers a regulated DC output via adjustment of a phase shift between at least one of the one or more rectifiers and the inverter.Type: GrantFiled: April 27, 2012Date of Patent: September 30, 2014Assignee: FINsix CorporationInventors: Anthony D. Sagneri, Jae-Won George Hwang, Justin Michael Burkhart, Fred Chen
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Patent number: 8803426Abstract: According to various embodiments of the invention, an LED lighting system is providing having a replaceable driver module. In some embodiments, the replaceable driver module comprises a component that is physically attachable to an LED illumination module, whereby the attached components have a combined physical profile dimensioned for installation in a pre-existing light fixture. In further embodiments, the combined system's dimensions allow it to be installed in pre-existing fluorescent fixtures without requiring rewiring of the fixtures. In some embodiments, the LED driver module may be configured to condition power received from a fluorescent light ballast to drive the LEDs such that a pre-existing fluorescent ballast does not need to be removed. In other embodiments, the LED driver may be configured to condition main power such that a pre-existing fluorescent ballast may be removed.Type: GrantFiled: November 19, 2012Date of Patent: August 12, 2014Assignee: Pacific DynamicInventors: Steven W. Carlin, Bob Chen, Fred Chen, Jerome Legerton
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Patent number: 8542509Abstract: A method of multi-path power factor correction includes providing a plurality of energy transfer paths from a voltage-varying input to an output; delivering a first fraction of available input energy to one or more energy storage networks at the input of at least one of the plurality of energy transfer paths; delivering a second fraction of available input energy to the output; and adjusting the first fraction and second fraction for facilitating outputting a substantially constant output and for controlling the energy drawn from the input.Type: GrantFiled: April 27, 2012Date of Patent: September 24, 2013Assignee: FINsix CorporationInventors: Anthony D. Sagneri, Jae-Won George Hwang, Justin Michael Burkhart, Fred Chen
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Publication number: 20130141890Abstract: According to various embodiments of the invention, an LED lighting system is providing having a replaceable driver module. In some embodiments, the replaceable driver module comprises a component that is physically attachable to an LED illumination module, whereby the attached components have a combined physical profile dimensioned for installation in a pre-existing light fixture. In further embodiments, the combined system's dimensions allow it to be installed in pre-existing fluorescent fixtures without requiring rewiring of the fixtures. In some embodiments, the LED driver module may be configured to condition power received from a fluorescent light ballast to drive the LEDs such that a pre-existing fluorescent ballast does not need to be removed. In other embodiments, the LED driver may be configured to condition main power such that a pre-existing fluorescent ballast may be removed.Type: ApplicationFiled: November 19, 2012Publication date: June 6, 2013Inventors: STEVEN W. CARLIN, BOB CHEN, FRED CHEN, JEROME LEGERTON
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Patent number: 8319437Abstract: According to various embodiments of the invention, an LED lighting system is providing having a replaceable driver module. In some embodiments, the replaceable driver module comprises a component that is physically attachable to an LED illumination module, whereby the attached components have a combined physical profile dimensioned for installation in a pre-existing light fixture. In further embodiments, the combined system's dimensions allow it to be installed in pre-existing fluorescent fixtures without requiring rewiring of the fixtures. In some embodiments, the LED driver module may be configured to condition power received from a fluorescent light ballast to drive the LEDs such that a pre-existing fluorescent ballast does not need to be removed. In other embodiments, the LED driver may be configured to condition main power such that a pre-existing fluorescent ballast may be removed.Type: GrantFiled: February 19, 2010Date of Patent: November 27, 2012Assignee: Pacific DynamicInventors: Steven W. Carlin, Bob Chen, Fred Chen
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Patent number: 8301219Abstract: Various systems and methods are provided for monitoring patient physiological data without the need for adhesives or wires to be connected to a patient. The system is also fully functional without the need for manipulation or intervention by a care provider or medical personnel. In particular, the system can include a pad having a plurality of electrical contacts or electrodes formed thereon in a predetermined pattern. The electrodes can be configured to sense electrical signals produced by a patient's body. A controller in communication with the electrodes can be configured to select and process signals from the electrodes and send the information derived from the electrical signals to an output device for displaying resulting physiological data so that the patient can be monitored.Type: GrantFiled: July 9, 2009Date of Patent: October 30, 2012Assignees: The General Hospital Corporation, Massachusetts Institute of TechnologyInventors: Fred Chen, Henry Wu, Pei-Lan Hsu, Brad Stronger, Hongshen Ma, Robert L. Sheridan
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Publication number: 20120217938Abstract: A method of multi-path power factor correction includes providing a plurality of energy transfer paths from a voltage-varying input to an output; delivering a first fraction of available input energy to one or more energy storage networks at the input of at least one of the plurality of energy transfer paths; delivering a second fraction of available input energy to the output; and adjusting the first fraction and second fraction for facilitating outputting a substantially constant output and for controlling the energy drawn from the input.Type: ApplicationFiled: April 27, 2012Publication date: August 30, 2012Applicant: OnChip PowerInventors: Anthony D. Sagneri, Jae-Won George Hwang, Justin Michael Burkhart, Fred Chen
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Publication number: 20120206946Abstract: A method of on/off modulation of a very high frequency switching cell-based power converter includes receiving an input voltage signal to be applied to a plurality of series stacked very high frequency power converter cells for producing an output voltage and/or current, and controlling a portion of the plurality of series stacked high frequency power converter cells through on/off modulation of at least one of the plurality of series stacked high frequency power converter cells to control the output current and/or the output voltage.Type: ApplicationFiled: April 27, 2012Publication date: August 16, 2012Applicant: ONCHIP POWERInventors: Anthony D. Sagneri, Jae-Won George Hwang, Justin Michael Burkhart, Fred Chen
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Publication number: 20120206943Abstract: A VHF switching power converter comprising one or more VHF switching frequency resonant synchronous rectifiers receives an output from an inverter and delivers a DC output to a load. The power converter includes a controller for controlling at least one of the one or more VHF switching frequency resonant synchronous rectifiers based on feedback derived from a waveform of at least one of the rectifiers. The controller controls a phase angle of at least one of the rectifiers with a delay locked loop. The power converter delivers a regulated DC output via adjustment of a phase shift between at least one of the one or more rectifiers and the inverter.Type: ApplicationFiled: April 27, 2012Publication date: August 16, 2012Applicant: ONCHIP POWERInventors: Anthony D. Sagneri, Jae-Won George Hwang, Justin Michael Burkhart, Fred Chen
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Publication number: 20120069606Abstract: In an aspect, the present invention provides a high frequency switching power converter. The high frequency switching power converter may include a plurality of soft-switchable power cells flexibly connected to receive an input signal in series and provide an output. The high frequency switching power converter may further include a controller for configuring the flexible connection and for controlling the power cells to receive the input signal. In an embodiment, each of the plurality of power cells may be separately controllable by the controller. Further, a portion of the plurality of power cells may be arranged with parallel outputs. Additionally, at least one of the plurality of cells may include one or more switched capacitors. In another embodiment, the at least one of the plurality of cells may include at least one switched capacitor and a DC/DC regulating converter.Type: ApplicationFiled: August 18, 2011Publication date: March 22, 2012Applicant: ONCHIP POWERInventors: Anthony D. Sagneri, Jae-Won George Hwang, Justin Michael Burkhart, Fred Chen
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Patent number: 8135713Abstract: An intelligent sourcing controller for sourcing potential suppliers from external sources such as the Internet as well as internal sources such as a local data server. The intelligent sourcing engine controller provides a supplier appraisal to the buyer as decision support. The intelligent sourcing controller integrates its supplier appraisal criteria with the buyer's sourcing criteria, classifying the collected information in the same way a buyer configures his requirements for the suppliers. The intelligent sourcing controller synchronizes the Internet sourcing results with the local data server after each search to renew data in the local data server in time and the sourcing criteria can be reused in future for decision support.Type: GrantFiled: March 31, 2006Date of Patent: March 13, 2012Assignee: SAP AGInventors: Simon Chen, Fred Chen, Anna Zhang, Tian Xu, Jay Xiong
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Patent number: 7962990Abstract: Embodiments of the present invention relates to an apparatus and method for cleaning a substrate using scrubber brushes. One embodiment of the present invention provides a substrate cleaner comprises two scrubber brush assemblies movably disposed in a processing volume. The two scrubber brush assemblies are configured to contact and clean opposite surfaces of a substrate disposed in the processing volume. The substrate cleaner also comprises a positioning assembly configured to simultaneously adjust positions of the two scrubber brush assemblies, wherein the positioning assembly makes substantially the same amount of adjustment to the first and second scrubber brush assemblies in mirror symmetry.Type: GrantFiled: October 1, 2008Date of Patent: June 21, 2011Assignee: Applied Materials, Inc.Inventors: Hui (Fred) Chen, Joseph Yudovsky, Allen L. D'Ambra
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Publication number: 20110115382Abstract: According to various embodiments of the invention, an LED lighting system is providing having a replaceable driver module. In some embodiments, the replaceable driver module comprises a component that is physically attachable to an LED illumination module, whereby the attached components have a combined physical profile dimensioned for installation in a pre-existing light fixture. In further embodiments, the combined system's dimensions allow it to be installed in pre-existing fluorescent fixtures without requiring rewiring of the fixtures. In some embodiments, the LED driver module may be configured to condition power received from a fluorescent light ballast to drive the LEDs such that a pre-existing fluorescent ballast does not need to be removed. In other embodiments, the LED driver may be configured to condition main power such that a pre-existing fluorescent ballast may be removed.Type: ApplicationFiled: February 19, 2010Publication date: May 19, 2011Inventors: Steven W. Carlin, Bob Chen, Fred Chen
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Publication number: 20100078044Abstract: Embodiments of the present invention generally relate to an apparatus and a method for cleaning a semiconductor substrate after a polishing process. Particularly, embodiments of the present invention relates to an apparatus and method for cleaning a substrate using pressurized fluid. One embodiment of the present invention comprises two rollers to support and rotate a substrate in a substantially vertical orientation, a pressure wheel to apply a force to engage the substrate with the two rollers, and a swinging nozzle configured to dispense a pressurized fluid towards the substrate.Type: ApplicationFiled: October 1, 2008Publication date: April 1, 2010Inventors: Hui (Fred) Chen, Allen L. D'Ambra
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Publication number: 20100078041Abstract: Embodiments of the present invention relates to an apparatus and method for cleaning a substrate using scrubber brushes. One embodiment of the present invention provides a substrate cleaner comprises two scrubber brush assemblies movably disposed in a processing volume. The two scrubber brush assemblies are configured to contact and clean opposite surfaces of a substrate disposed in the processing volume. The substrate cleaner also comprises a positioning assembly configured to simultaneously adjust positions of the two scrubber brush assemblies, wherein the positioning assembly makes substantially the same amount of adjustment to the first and second scrubber brush assemblies in mirror symmetry.Type: ApplicationFiled: October 1, 2008Publication date: April 1, 2010Inventors: Hui (Fred) Chen, Joseph Yudovsky, Allen L. D'Ambra
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Publication number: 20100041975Abstract: Various systems and methods are provided for monitoring patient physiological data without the need for adhesives or wires to be connected to a patient. The system is also fully functional without the need for manipulation or intervention by a care provider or medical personnel. In particular, the system can include a pad having a plurality of electrical contacts or electrodes formed thereon in a predetermined pattern. The electrodes can be configured to sense electrical signals produced by a patient's body. A controller in communication with the electrodes can be configured to select and process signals from the electrodes and send the information derived from the electrical signals to an output device for displaying resulting physiological data so that the patient can be monitored.Type: ApplicationFiled: July 9, 2009Publication date: February 18, 2010Applicant: MASSACHUSETTS GENERAL HOSPITAL D/B/A Massachusetts General HospitalInventors: Fred Chen, Henry Wu, Pei-Lan Hsu, Brad Stronger, Hongshen Ma, Robert L. Sheridan
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Publication number: 20090196724Abstract: The present invention generally provides a method and apparatus for supporting and transferring a substrate. One embodiment of the present invention provides an apparatus configured for handling a substrate comprising a base member, a first finger movably connected with the base member, wherein the first finger is pivotable about a pivoting axis, a second finger movably connected with the base member, wherein the second finger is pivotable about the pivoting axis, the first and second fingers form an opening, and pivoting of the first and second fingers allow the opening to vary for receiving a substrate and for carrying the substrate by contacting an edge of the substrate, and an actuator connected with the first finger and second finger, wherein the actuator is configured to pivot the first and second fingers simultaneously along opposite directions.Type: ApplicationFiled: February 5, 2008Publication date: August 6, 2009Inventors: HUI (FRED) CHEN, JOHN S. LEWIS
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Publication number: 20090106516Abstract: A method for preventing erroneous writing of data includes the steps of: providing a memory positioned in a writing protection state, connecting the memory to a host computer installed with a control program, using the control program to control the memory to remove the writing protection state and writing external data into the memory. Whereby, the erroneous writing of the external data is prevented and the safety of internal data of the memory is protected accurately.Type: ApplicationFiled: January 16, 2008Publication date: April 23, 2009Applicant: INVENTEC BESTA CO., LTD.Inventors: Fred Chen, George Yang
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Publication number: 20080049822Abstract: A signaling circuit having a selectable-tap equalizer. The signaling circuit includes a buffer, a select circuit and an equalizing circuit. The buffer is used to store a plurality of data values that correspond to data signals transmitted on a signaling path during a first time interval. The select circuit is coupled to the buffer to select a subset of data values from the plurality of data values according to a select value. The equalizing circuit is coupled to receive the subset of data values from the select circuit and is adapted to adjust, according to the subset of data values, a signal level that corresponds to a data signal transmitted on the signaling path during a second time interval.Type: ApplicationFiled: October 12, 2007Publication date: February 28, 2008Applicant: Rambus Inc.Inventors: Jared Zerbe, Vladimir Stojanovic, Fred Chen