Patents by Inventor Neil Benjamin
Neil Benjamin 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: 7274004Abstract: A chuck for a plasma processor comprises a temperature-controlled base, a thermal insulator, a flat support, and a heater. The temperature-controlled base has a temperature below the desired temperature of a workpiece. The thermal insulator is disposed over the temperature-controlled base. The flat-support holds a workpiece and is disposed over the thermal insulator. A heater is embedded within the flat support and/or disposed on an underside of the flat support. The heater includes a plurality of heating elements that heat a plurality of corresponding heating zones. The power supplied and/or temperature of each heating element is controlled independently.Type: GrantFiled: November 30, 2004Date of Patent: September 25, 2007Assignee: Lam Research CorporationInventors: Neil Benjamin, Robert Steger
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Patent number: 7254510Abstract: A method of component management in a substrate processing system is disclosed. The substrate processing system has a set of components, at least a plurality of components of the set of components being designated to be smart components, each component of the plurality of components having an intelligent component enhancement (ICE). The method includes querying the plurality of components to request their respective unique identification data from their respective ICEs. The method further includes receiving unique identification data from the plurality of components if any of the plurality of components responds to the querying. The method additionally includes flagging the first component for corrective action if a first component of the plurality of components fails to provide first component unique identification data when the first component identification data is expected.Type: GrantFiled: August 2, 2006Date of Patent: August 7, 2007Assignee: Lam Research CorporationInventors: Neil Benjamin, Richard Alan Gottscho, Nicolas Bright, Robert Steger
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Patent number: 7152011Abstract: A method of component management in a substrate processing system is disclosed. The substrate processing system has a set of components, at least a plurality of components of the set of components being designated to be smart components, each component of the plurality of components having an intelligent component enhancement (ICE). The method includes querying the plurality of components to request their respective unique identification data from their respective ICEs. The method further includes receiving unique identification data from the plurality of components if any of the plurality of components responds to the querying. The method additionally includes flagging the first component for corrective action if a first component of the plurality of components fails to provide first component unique identification data when the first component identification data is expected.Type: GrantFiled: August 25, 2004Date of Patent: December 19, 2006Assignee: Lam Research CorporationInventors: Neil Benjamin, Richard Alan Gottscho, Nicolas Bright, Robert Steger
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Publication number: 20060271325Abstract: A method of component management in a substrate processing system is disclosed. The substrate processing system has a set of components, at least a plurality of components of the set of components being designated to be smart components, each component of the plurality of components having an intelligent component enhancement (ICE). The method includes querying the plurality of components to request their respective unique identification data from their respective ICEs. The method further includes receiving unique identification data from the plurality of components if any of the plurality of components responds to the querying. The method additionally includes flagging the first component for corrective action if a first component of the plurality of components fails to provide first component unique identification data when the first component identification data is expected.Type: ApplicationFiled: August 2, 2006Publication date: November 30, 2006Inventors: Neil Benjamin, Richard Gottscho, Nicolas Bright, Robert Steger
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Patent number: 7080941Abstract: A temperature sensing system incorporates a contact temperature sensor probe for measuring the temperature of articles. The probe is able to operate effectively even in high radio frequency environments such as those present within radio frequency excited plasma processing chambers. The temperature sensing system includes a contact temperature sensor, such as a thermocouple, surrounded by a shielding sheath of a material such as aluminum which is clad with one or more layers of a cladding material. A tip insulator is provided surrounding the sheath for providing RF insulation and thermal coupling. An RF insulating and thermal insulating mounting member is connected to the tip insulator for mounting the probe on an article to be measured.Type: GrantFiled: November 13, 2002Date of Patent: July 25, 2006Assignee: Lam Research CorporationInventors: Neil Benjamin, Charles Ross, Rory Babb
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Publication number: 20060047458Abstract: A method of component management in a substrate processing system is disclosed. The substrate processing system has a set of components, at least a plurality of components of the set of components being designated to be smart components, each component of the plurality of components having an intelligent component enhancement (ICE). The method includes querying the plurality of components to request their respective unique identification data from their respective ICEs. The method further includes receiving unique identification data from the plurality of components if any of the plurality of components responds to the querying. The method additionally includes flagging the first component for corrective action if a first component of the plurality of components fails to provide first component unique identification data when the first component identification data is expected.Type: ApplicationFiled: August 25, 2004Publication date: March 2, 2006Inventors: Neil Benjamin, Richard Gottscho, Nicolas Bright, Robert Steger
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Patent number: 6974550Abstract: An apparatus for controlling the voltage applied to a shield interposed between an induction coil powered by a power supply via a matching network, and the plasma it generates, comprises a shield, a first feedback circuit, and a second feedback circuit. The power supply powers the shield. The first feedback circuit is connected to the induction coil for controlling the power supply. The second feedback circuit is connected to the shield for controlling the voltage of the shield. Both first and second feedback circuits operate at different frequency ranges. The first feedback circuit further comprises a first controller and a first sensor. The first sensor sends a first signal representing the power supplied to the inductive coil to the first controller. The first controller adjusts the power supply such that the power supplied to the inductor coil is controlled by a first set point. The second feedback circuit further comprises a second sensor, a second controller, and a variable impedance network.Type: GrantFiled: May 30, 2003Date of Patent: December 13, 2005Assignee: Lam Research CorporationInventors: Neil Benjamin, Andras Kuthi
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Patent number: 6972579Abstract: A wafer integrated plasma diagnostic apparatus for semiconductor wafer processing system having a multiplicity of plasma probe assemblies arranged on a wafer in a planar array fashion such that one plasma probe assembly is in the center and eight more plasma probe assemblies are at intermediate positions such that they lie along the radius from the center to the corners; such corners forming four corners of a square box near the edge of the wafer. At each location and in each of the plasma probe assemblies, there are six possible probe elements having a relative geometrical area such that they are capable of making simultaneous measurements of both spatial resolution and real time measurement of different plasma characteristics at the wafer surface, such as: D.C. potential, A.C. potential, shading induced potentials, ion fluxes, ion energy distribution, and the electron part of the I-V Langmuir probe characteristic.Type: GrantFiled: July 26, 2004Date of Patent: December 6, 2005Assignee: Lam Research CorporationInventor: Neil Benjamin
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Patent number: 6952255Abstract: An optical alignment system for use in a semiconductor processing system is provided. The optical alignment system includes a wafer chuck that has an alignment feature integrated into the top surface of the wafer chuck. In addition, a beam-forming system, which is capable of emitting an optical signal onto the alignment feature, is disposed above the wafer chuck. Also, a detector is included that can detect an amplitude of the optical signal emitted onto the alignment feature. In one aspect, the alignment feature can be a reflective alignment feature that reflects a portion of the optical signal back to the beam detector. In additional aspect, the alignment feature can be a transmittance alignment feature capable of allowing a portion of the optical signal to pass through the wafer chuck to the detector. In this aspect, the detector can be disposed below the wafer chuck.Type: GrantFiled: August 6, 2003Date of Patent: October 4, 2005Assignee: Lam Research CorporationInventors: Andrew Perry, Robert Steger, Neil Benjamin
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Publication number: 20050211385Abstract: A chuck for a plasma processor comprises a temperature-controlled base, a thermal insulator, a flat support, and a heater. The temperature-controlled base is controlled in operation a temperature below the desired temperature of a workpiece. The thermal insulator is disposed over at least a portion of the temperature-controlled base. The flat support holds a workpiece and is disposed over the thermal insulator. A heater is embedded within the flat support and/or mounted to an underside of the flat support. The heater includes a plurality of heating elements that heat a plurality of corresponding heating zones. The power supplied and/or temperature of each heating element is controlled independently. The heater and flat support have a combined temperature rate change of at least 1° C. per second.Type: ApplicationFiled: December 2, 2004Publication date: September 29, 2005Inventors: Neil Benjamin, Robert Steger
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Publication number: 20050173404Abstract: A chuck for a plasma processor comprises a temperature-controlled base, a thermal insulator, a flat support, and a heater. The temperature-controlled base has a temperature below the desired temperature of a workpiece. The thermal insulator is disposed over the temperature-controlled base. The flat support holds a workpiece and is disposed over the thermal insulator. A heater is embedded within the flat support and/or disposed on an underside of the flat support. The heater includes a plurality of heating elements that heat a plurality of corresponding heating zones. The power supplied and/or temperature of each heating element is controlled independently.Type: ApplicationFiled: November 30, 2004Publication date: August 11, 2005Inventors: Neil Benjamin, Robert Steger
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Publication number: 20050173403Abstract: A chuck for a plasma processor comprises a temperature-controlled base, a thermal insulator, a flat support, and a heater. The temperature-controlled base has a temperature below the desired temperature of a workpiece. The thermal insulator is disposed over the temperature-controlled base. The flat-support holds a workpiece and is disposed over the thermal insulator. A heater is embedded within the flat support and/or disposed on an underside of the flat support. The heater includes a plurality of heating elements that heat a plurality of corresponding heating zones. The power supplied and/or temperature of each heating element is controlled independently.Type: ApplicationFiled: November 30, 2004Publication date: August 11, 2005Inventors: Neil Benjamin, Robert Steger
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Patent number: 6920312Abstract: An RF generating system operates with high efficiency to supply RF output power to a plasma load. The RF generating system is capable of modulating the RF output power at frequencies up to the frequency of the RF output power while maintaining high efficiency operation. Broadband frequency modulation of the RF output power suppresses instabilities thereby minimizing unstable behavior of the plasma load.Type: GrantFiled: January 2, 2002Date of Patent: July 19, 2005Assignee: Lam Research CorporationInventor: Neil Benjamin
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Publication number: 20050121143Abstract: A cylindrical pump baffle fitted to a semiconductor processing chamber is disclosed. The pump baffle contains a screen with bores therethrough to allow process gasses from the process chamber to be exhausted from the chamber at a reduced rate. This decreases process discrepancies to the wafer due to the prejudice of gas concentration as a result of the pressure differential imposed upon the gas and thereby the wafer brought about by the rapid and relatively unimpeded exit flow of process gasses when no restrictive member is in place. The pump baffle is also machined such that it does not block the placement and removal of wafers by the platform robot arm.Type: ApplicationFiled: October 15, 2004Publication date: June 9, 2005Applicant: Lam Research CorporationInventors: John Daugherty, Neil Benjamin, Song Huang
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Patent number: 6901808Abstract: A capacitive manometer includes a flow passage through which gas can enter the manometer, a deflectable diaphragm, and a filter arranged in the flow passage. The filter is capable of removing condensable vapors from the gas so that the condensable vapors do not reach and deposit on the diaphragm. The capacitive manometer can include a cooling unit arranged to cool the filter so as to enhance removal of condensable vapors from the gas by the filter. The capacitive manometer can include a baffle having gas passages distributed to control distribution of condensable vapors, which pass through the baffle, on the diaphragm.Type: GrantFiled: February 11, 2003Date of Patent: June 7, 2005Assignee: Lam Research CorporationInventors: Leonard J. Sharpless, Neil Benjamin, Jeffrey W. Fish
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Publication number: 20050030524Abstract: An optical alignment system for use in a semiconductor processing system is provided. The optical alignment system includes a wafer chuck that has an alignment feature integrated into the top surface of the wafer chuck. In addition, a beam-forming system, which is capable of emitting an optical signal onto the alignment feature, is disposed above the wafer chuck. Also, a detector is included that can detect an amplitude of the optical signal emitted onto the alignment feature. In one aspect, the alignment feature can be a reflective alignment feature that reflects a portion of the optical signal back to the beam detector. In additional aspect, the alignment feature can be a transmittance alignment feature capable of allowing a portion of the optical signal to pass through the wafer chuck to the detector. In this aspect, the detector can be disposed below the wafer chuck.Type: ApplicationFiled: August 6, 2003Publication date: February 10, 2005Applicant: LAM Research Corp.Inventors: Andrew Perry, Robert Steger, Neil Benjamin
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Patent number: 6847014Abstract: A chuck for a plasma processor comprises a temperature-controlled base, a thermal insulator, a flat support, and a heater. The temperature-controlled base has a temperature below the desired temperature of a workpiece. The thermal insulator is disposed over the temperature-controlled base. The flat support holds a workpiece and is disposed over the thermal insulator. A heater is embedded within the flat support and/or disposed on an underside of the flat support. The heater includes a plurality of heating elements that heat a plurality of corresponding heating zones. The power supplied and/or temperature of each heating element is controlled independently.Type: GrantFiled: February 1, 2002Date of Patent: January 25, 2005Assignee: Lam Research CorporationInventors: Neil Benjamin, Robert Steger
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Publication number: 20040263190Abstract: A wafer integrated plasma diagnostic apparatus for semiconductor wafer processing system having a multiplicity of plasma probe assemblies arranged on a wafer in a planar array fashion such that one plasma probe assembly is in the center and eight more plasma probe assemblies are at intermediate positions such that they lie along the radius from the center to the corners; such corners forming four corners of a square box near the edge of the wafer. At each location and in each of the plasma probe assemblies, there are six possible probe elements having a relative geometrical area such that they are capable of making simultaneous measurements of both spatial resolution and real time measurement of different plasma characteristics at the wafer surface, such as: D.C. potential, A.C. potential, shading induced potentials, ion fluxes, ion energy distribution, and the electron part of the I-V Langmuir probe characteristic.Type: ApplicationFiled: July 26, 2004Publication date: December 30, 2004Inventor: Neil Benjamin
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Patent number: 6821378Abstract: A cylindrical pump baffle fitted to a semiconductor processing chamber is disclosed. The pump baffle contains a screen with bores therethrough to allow process gasses from the process chamber to be exhausted from the chamber at a reduced rate. This decreases process discrepancies to the wafer due to the prejudice of gas concentration as a result of the pressure differential imposed upon the gas and thereby the wafer brought about by the rapid and relatively unimpeded exit flow of process gasses when no restrictive member is in place. The pump baffle is also machined such that it does not block the placement and removal of wafers by the platform robot arm.Type: GrantFiled: May 25, 2002Date of Patent: November 23, 2004Assignee: Lam Research CorporationInventors: John Daugherty, Neil Benjamin, Song Huang
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Patent number: 6781393Abstract: A wafer integrated plasma diagnostic method for a semiconductor wafer processing system provides a multiplicity of plasma probe assemblies arranged on a wafer in a planar array fashion such that one plasma probe assembly is located in the center and eight more plasma probe assemblies are located at intermediate positions such that they lie along the radius from the center to the corners; such corners forming four corners of a square box near the edge of the wafer. Method operations provide at each location and in each of the plasma probe assemblies, six possible probe elements having a relative geometrical area such that the assemblies may make simultaneous measurements of both spatial resolution and real time measurement of different plasma characteristics at the wafer surface, such as: D.C. potential, A.C. potential, shading induced potentials, ion fluxes, ion energy distribution, and the electron part of the I-V Langmuir probe characteristic.Type: GrantFiled: October 6, 2003Date of Patent: August 24, 2004Assignee: Lam Research CorporationInventor: Neil Benjamin