Patents by Inventor Mei H. Sun
Mei H. Sun 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: 9964440Abstract: A sensor apparatus has a substrate and a spectrally selective detection system, and a cover. The spectrally sensitive detection system is sandwiched between the substrate and the cover. The spectrally selective detection system includes a generally laminar array of wavelength selectors optically coupled to a corresponding array of optical detectors located within the substrate. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: GrantFiled: September 21, 2015Date of Patent: May 8, 2018Assignee: KLA-TENCOR CORPORATIONInventors: Earl M. Jensen, Mei H. Sun, Kevin O'Brien
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Publication number: 20160011046Abstract: A sensor apparatus has a substrate and a spectrally selective detection system, and a cover. The spectrally sensitive detection system is sandwiched between the substrate and the cover. The spectrally selective detection system includes a generally laminar array of wavelength selectors optically coupled to a corresponding array of optical detectors located within the substrate. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: ApplicationFiled: September 21, 2015Publication date: January 14, 2016Inventors: Earl M. Jensen, Mei H. Sun, Kevin O'Brien
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Publication number: 20130029433Abstract: An instrument comprises a substrate, a plurality of sensors distributed at positions across the substrate's surface, at least one electronic processing component on the surface, electrical conductors extending across the surface and connected to the sensors and processing component, and a cover disposed over the sensors, processing component and conductors. The cover and substrate have similar material properties to a production substrate. The cover is configured to electromagnetically shield the sensors, conductors, or processing component. The instrument has approximately the same thickness and/or flatness as the production substrate. It is emphasized that this abstract is provided to comply with rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: ApplicationFiled: January 30, 2012Publication date: January 31, 2013Applicant: KLA-Tencor CorporationInventors: Mei H. Sun, Mark Wiltse, Wayne G. Renken, Zachary Reid, Tony Dibiase
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Patent number: 8104342Abstract: An instrument for measuring a parameter comprises a substrate, a plurality of sensors carried by and distributed across a surface of the substrate that individually measure the parameter at different positions, an electronic processing component carried by the substrate surface, electrical conductors extending across the surface connected to the sensors and the electronic processing component, and a cover disposed over the sensors, electronic processing component and conductors. The cover and substrate have similar material properties to a production substrate processed by a substrate processing cell. The instrument has approximately the same thickness and/or flatness as the production substrate. The instrument may be subjected a substrate process and one or more parameters may be measured with the instrument during the process. The behavior of a production wafer in the substrate process may be characterized based on measurements of the parameters made with the one or more sensors.Type: GrantFiled: February 20, 2008Date of Patent: January 31, 2012Assignee: KLA-Tencor CorporationInventors: Mei H. Sun, Mark Wiltse, Wayne G. Renken, Zachary Reid, Tony DiBiase
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Patent number: 8033190Abstract: A measuring device incorporating a substrate with sensors that measure the processing conditions that a wafer may undergo during manufacturing. The substrate can be inserted into a processing chamber by a robot head and the measuring device can transmit the conditions in real time or store the conditions for subsequent analysis. Sensitive electronic components of the device can be distanced or isolated from the most deleterious processing conditions in order increase the accuracy, operating range, and reliability of the device. Isolation may be provided by vacuum or suitable material and phase change material may be located adjacent to electronics to maintain a low temperature.Type: GrantFiled: May 25, 2010Date of Patent: October 11, 2011Assignee: KLA-Tencor Technologies CorporationInventors: Wayne G. Renken, Mei H. Sun
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Patent number: 7924408Abstract: A method for reducing overlay error in a photolithographic process, by providing a substrate having a permanent layer with a first pattern disposed therein, coating the substrate with photoresist, exposing the photoresist to a second pattern, while measuring temperatures at a plurality of different first positions across the substrate, developing the second pattern in the photoresist, measuring overlay errors between the first and second patterns at a plurality of different second positions across the substrate, correlating the overlay errors with temperatures by position on the substrate, determining any relationship indicated between the correlated overlay errors and temperatures, and adjusting at least one temperature controlling aspect of the photolithographic process in response to any relationship determined.Type: GrantFiled: March 24, 2007Date of Patent: April 12, 2011Assignee: KLA-Tencor Technologies CorporationInventors: Tony DiBiase, Mei H. Sun, Mark Wiltse
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Patent number: 7855549Abstract: A process condition measuring device and a handling system may be highly integrated with a production environment where the dimensions of the process condition measuring device are close to those of a production substrate and the handling system is similar to a substrate carrier used for production substrates. Process conditions may be measured with little disturbance to the production environment. Data may be transferred from a process condition-measuring device to a user with little or no human intervention.Type: GrantFiled: October 27, 2006Date of Patent: December 21, 2010Assignee: KLA-Tencor CorporationInventors: Wayne Glenn Renken, Earl M. Jensen, Roy Gordon, Brian Paquette, Mei H. Sun
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Publication number: 20100294051Abstract: A measuring device incorporating a substrate with sensors that measure the processing conditions that a wafer may undergo during manufacturing. The substrate can be inserted into a processing chamber by a robot head and the measuring device can transmit the conditions in real time or store the conditions for subsequent analysis. Sensitive electronic components of the device can be distanced or isolated from the most deleterious processing conditions in order increase the accuracy, operating range, and reliability of the device. Isolation may be provided by vacuum or suitable material and phase change material may be located adjacent to electronics to maintain a low temperature.Type: ApplicationFiled: May 25, 2010Publication date: November 25, 2010Applicant: KLA-TENCOR CORPORATIONInventors: Wayne G. Renken, Mei H. Sun
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Patent number: 7757574Abstract: A measuring device incorporating a substrate with sensors that measure the processing conditions that a wafer may undergo during manufacturing. The substrate can be inserted into a processing chamber by a robot head and the measuring device can transmit the conditions in real time or store the conditions for subsequent analysis. Sensitive electronic components of the device can be distanced or isolated from the most deleterious processing conditions in order increase the accuracy, operating range, and reliability of the device. Isolation may be provided by vacuum or suitable material and phase change material may be located adjacent to electronics to maintain a low temperature.Type: GrantFiled: December 13, 2005Date of Patent: July 20, 2010Assignee: KLA-Tencor CorporationInventors: Wayne G. Renken, Mei H. Sun
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Patent number: 7698952Abstract: At least one pair of capacitively coupled electrodes contained in a structure is used to sense the deflection of a diaphragm in a pressure or force sensor for measuring the pressure or force exerted on the diaphragm. Preferably the structure has properties (such as one or more of the following: dimensions, hardness, area and flexibility) that are substantially the same as those of a real substrate, such as a semiconductor wafer or flat panel display panel.Type: GrantFiled: September 25, 2007Date of Patent: April 20, 2010Assignee: KLA-Tencor CorporationInventors: Wayne G. Renken, Mei H. Sun, Aron Abramowski Mason, Lynn Karl Wiese
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Publication number: 20090056441Abstract: An instrument for measuring a parameter comprises a substrate, a plurality of sensors carried by and distributed across a surface of the substrate that individually measure the parameter at different positions, an electronic processing component carried by the substrate surface, electrical conductors extending across the surface connected to the sensors and the electronic processing component, and a cover disposed over the sensors, electronic processing component and conductors. The cover and substrate have similar material properties to a production substrate processed by a substrate processing cell. The instrument has approximately the same thickness and/or flatness as the production substrate. The instrument may be subjected a substrate process and one or more parameters may be measured with the instrument during the process. The behavior of a production wafer in the substrate process may be characterized based on measurements of the parameters made with the one or more sensors.Type: ApplicationFiled: February 20, 2008Publication date: March 5, 2009Applicant: KLA-Tencor CorporationInventors: Mei H. Sun, Mark Wiltse, Wayne G. Renken, Zachary Reid, Tony DiBiase
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Patent number: 7497134Abstract: At least one shear force sensor is used to measure the shear force on a member, when the member is in contact with and pressed against a polishing or planarization surface and a lateral force is applied between the two surfaces. Preferably the structure and the surface of the structure have properties (such as one or more of the following: dimensions and coefficient of friction) that are substantially the same as those of a real substrate, such as a semiconductor wafer or flat panel display panel.Type: GrantFiled: September 25, 2007Date of Patent: March 3, 2009Assignee: KLA-Tencor CorporationInventors: Wayne G. Renken, Mei H. Sun, Aron Abramowski Mason
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Publication number: 20080204678Abstract: A method for reducing overlay error in a photolithographic process, by providing a substrate having a permanent layer with a first pattern disposed therein, coating the substrate with photoresist, exposing the photoresist to a second pattern, while measuring temperatures at a plurality of different first positions across the substrate, developing the second pattern in the photoresist, measuring overlay errors between the first and second patterns at a plurality of different second positions across the substrate, correlating the overlay errors with temperatures by position on the substrate, determining any relationship indicated between the correlated overlay errors and temperatures, and adjusting at least one temperature controlling aspect of the photolithographic process in response to any relationship determined.Type: ApplicationFiled: March 24, 2007Publication date: August 28, 2008Applicant: KLA-TENCOR TECHNOLOGIES CORPORATIONInventors: Tony DiBiase, Mei H. Sun, Mark Wiltse
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Patent number: 7135852Abstract: A process condition measuring device and a handling system may be highly integrated with a production environment where the dimensions of the process condition measuring device are close to those of a production substrate and the handling system is similar to a substrate carrier used for production substrates. Process conditions may be measured with little disturbance to the production environment. Data may be transferred from a process condition-measuring device to a user with little or no human intervention.Type: GrantFiled: April 29, 2004Date of Patent: November 14, 2006Assignee: SensArray CorporationInventors: Wayne Glenn Renken, Earl M. Jensen, Roy Gordon, Brian Paquette, Mei H. Sun
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Patent number: 6915589Abstract: Multiple sensors may be attached to a substrate to measure conditions at different points. Positioning the sensors accurately may be achieved using a template to establish sensor position. A pre-fabricated kit including a template, sensors and a cable assembly may be easily transported so that sensors may be attached in the field.Type: GrantFiled: October 16, 2003Date of Patent: July 12, 2005Assignee: SensArray CorporationInventors: Mei H. Sun, Richard Schwaninger, Wayne G. Renken
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Publication number: 20040225462Abstract: A process condition measuring device and a handling system may be highly integrated with a production environment where the dimensions of the process condition measuring device are close to those of a production substrate and the handling system is similar to a substrate carrier used for production substrates. Process conditions may be measured with little disturbance to the production environment. Data may be transferred from a process condition-measuring device to a user with little or no human intervention.Type: ApplicationFiled: April 29, 2004Publication date: November 11, 2004Inventors: Wayne Glenn Renken, Earl M. Jensen, Roy Gordon, Brian Paquette, Mei H. Sun
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Patent number: 6616332Abstract: A sensor of a parameter such as temperature includes an indicator encapsulated within a rigid enclosure, wherein the sensor has a characteristic that varies with the parameter that is detectable upon illumination with electromagnetic radiation through a window of the enclosure that is transparent to the radiation. In a specific example, the indicator changes an optical characteristic such as its color as a function of its temperature, and may be of an irreversible type in order to indicate the peak temperature reached. The sensor may include a pattern of such indicators that have different peak temperatures to which they respond, so that the sensor gives a unique visual pattern at each temperature within its measurement range. This pattern may be viewed directly or processed by computer to compare the pattern with those which indicate known temperatures.Type: GrantFiled: November 18, 1999Date of Patent: September 9, 2003Assignee: SensArray CorporationInventors: Wayne Renken, Mei H. Sun, Arwa Ginwalla
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Patent number: 6325536Abstract: Systems and methods are described for integrated (embedded) semiconductor wafer temperature measurement equipment and processes. An integrated wafer temperature measurement apparatus, comprising: a substrate; a placement resource formed in said substrate; a sensor lead located in said placement resource, said sensor lead having a first end and a second end; a sensor coupled to said first end of said sensor lead and located in said placement resource; and a sensor lead cover coupled to said substrate. The systems and methods provide advantages in that reliability is enhanced, installation and removal are facilitated, and accuracy is improved by obviating any shadowing of the substrate and reducing temperature gradients near the sensor.Type: GrantFiled: July 10, 1998Date of Patent: December 4, 2001Assignee: SensArray CorporationInventors: Wayne Glenn Renken, Mei H. Sun, Paul Miller, Roy Gordon, Peter Michael Noel Vandenabeele
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Patent number: 6190040Abstract: A cable and interconnect design including a substrate containing discrete sensors in a plurality of cavities or a plurality of thin film sensors deposited throughout the substrate surface. The discrete sensors are bonded within each cavity and potted with a potting compound. Each sensor has leads joined to filaments by an interconnect system. Thin film sensor leads on the substrate connect to a signal transmitting cable by the interconnect system. The filaments are coated and converge at a strain relief coupled to the substrate. The cable, having flat and round portions, includes an array of flat signal transmitting cables arranged side by side in the flat portion and stacked one on top of the other in the round portion. Each signal cable contains a plurality of the filaments bonded together. A pair of ribbons extend along the length of the array of cables. The ribbons and array of cables are bonded together with film to form the flat portion.Type: GrantFiled: May 10, 1999Date of Patent: February 20, 2001Assignee: Sensarray CorporationInventors: Wayne G. Renken, Mei H. Sun
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Patent number: 6010538Abstract: In an apparatus for removing material from an article, such as an exposed surface of an intermediate integrated circuit structure, by planarizing, polishing, etching or the like, a sensor is mechanically coupled to a moving carrier of the article for directing through the article to its first side an electromagnetic radiation beam having a wavelength band to which the structure is substantially transparent. The beam is detected after interacting with the article, such as being reflected from its exposed surface, and resulting information of the state of the processing of the exposed surface is transmitted from the moving carrier to a stationary receiver by radiation without the use of any physical transmission media such as wires or optical fibers. Multiple sensors mounted on the moving article carrier provide information of the uniformity of the processing across the exposed article surface.Type: GrantFiled: January 11, 1996Date of Patent: January 4, 2000Assignee: Luxtron CorporationInventors: Mei H. Sun, Herbert E. Litvak, Huey M. Tzeng, Daniel E. Glenn, Earl M. Jensen, Frank J. Hausman, Lin Jun Zhou