Patents by Inventor Won B. Bang
Won B. Bang 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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Publication number: 20150345007Abstract: This application relates to a combination vapor deposition process chamber. In, some embodiments, a combination vapor deposition process chamber can be used to apply an optical coating to a substrate such as glass, as well as an anti-smudge coating to the same substrate. The combination vapor deposition process chamber can include a sputter target, reactive gas and plasma source, and an anti-smudge coating source. Both sputter deposition and evaporation deposition can be performed with the combination vapor deposition process chamber without exposing the substrate to open air and contaminants between deposition processes. In some embodiments, the combination vapor deposition process chamber uses multiple sub-process chambers connected by a low pressure passageway for transferring substrates between deposition processes.Type: ApplicationFiled: May 28, 2014Publication date: December 3, 2015Applicant: Apple Inc.Inventors: Matthew S. ROGERS, Kristina A. BABIARZ, Rodrigo A. COFINO, Won B. BANG, Sunggu KANG, Rasmi R. DAS, Wookyung BAE, John Z. ZHONG
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Publication number: 20120074126Abstract: A substrate support comprising a top ceramic plate providing a substrate support surface for supporting a substrate during substrate processing, a substrate pedestal having coolant channels formed therein and a thermoelectric deck sandwiched between the top ceramic plate and substrate pedestal. The thermoelectric deck includes a plurality of embedded thermoelectric elements that can either heat or cool the substrate support surface.Type: ApplicationFiled: March 25, 2011Publication date: March 29, 2012Applicant: Applied Materials, Inc.Inventors: Won B. Bang, Tien Fak Tan, Son M. Phi, Dmitry Lubomirsky
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Publication number: 20110120017Abstract: Techniques for a door system for sealing an opening between two chambers in a semiconductor processing system are described. A sealing member seals the opening when a door is in a closed position. To selectively open and close the opening, an actuator moves the door. A valve actuator switch provides a first or second pressure to the actuator depending on the pressure inside a first chamber. In one embodiment, a sensor monitors the pressure inside the first chamber.Type: ApplicationFiled: November 18, 2010Publication date: May 26, 2011Applicant: Applied Materials, Inc.Inventors: Won B. Bang, Toan Q. Tran, Yen-Kun Victor Wang
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Patent number: 7841582Abstract: Techniques for a door system for sealing an opening between two chambers in a semiconductor processing system are described. A sealing member seals the opening when a door is in a closed position. To selectively open and close the opening, an actuator moves the door. A valve actuator switch provides a first or second pressure to the actuator depending on the pressure inside a first chamber. In one embodiment, a sensor monitors the pressure inside the first chamber.Type: GrantFiled: November 16, 2004Date of Patent: November 30, 2010Assignee: Applied Materials, Inc.Inventors: Won B. Bang, Toan Q. Tran, Yen-Kun Victor Wang
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Patent number: 7758698Abstract: A gas distributor for use in a semiconductor process chamber comprises a body. The body includes a first channel formed within the body and adapted to pass a first fluid from a first fluid supply line through the first channel to a first opening. A second channel is formed within the body and adapted to pass a second fluid from a second fluid supply line through the second channel to a second opening. The first and second openings are arranged to mix the fluids outside the body after the fluids pass through the openings.Type: GrantFiled: November 28, 2006Date of Patent: July 20, 2010Assignee: Applied Materials, Inc.Inventors: Won B. Bang, Srivivas D. Nemani, Phong Pham, Ellie Y. Yieh
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Patent number: 7722719Abstract: Techniques of the present invention are directed to distribution of deposition gases onto a substrate. In one embodiment, a gas distributor for use in a processing chamber is provided. The gas distributor includes a body having a gas deflecting surface and a gas distributor face. The gas deflecting surface defines a cleaning gas pathway. The gas distributor face is disposed on an opposite side of the body from the gas deflecting surface and faces toward a substrate support member. The gas distributor face includes a raised step and at least one set of apertures through the raised step. The at least one set of apertures are adapted to distribute a deposition gas over a substrate positioned on the substrate support member.Type: GrantFiled: March 7, 2005Date of Patent: May 25, 2010Assignee: Applied Materials, Inc.Inventors: Lawrence Chung-Lai Lei, Siqing Lu, Steven E. Gianoulakis, Won B. Bang, David P. Sun, Yen-Kun Victor Wang
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Publication number: 20100006032Abstract: Apparatus for use with a processing chamber are provided. In one aspect a blocker plate is provided including an annular plate having an inner portion of a first thickness and the annular plate having an aperture pattern including a center portion, a first patterned portion concentrically disposed around the center portion and comprising a first plurality of apertures having a first number of apertures, an second patterned portion concentrically disposed around the first patterned portion and comprising a second plurality of apertures having a second number of apertures greater than the first number of apertures, a perimeter portion concentrically disposed around the second patterned portion, and an outer portion comprising a raised concentric portion disposed on a perimeter of the annular plate. In another aspect, a second, third, and fourth blocker plates are provided. Additionally, a mixing apparatus and a liquid evaporating apparatus for use in a processing chamber are provided.Type: ApplicationFiled: July 10, 2009Publication date: January 14, 2010Applicant: APPLIED MATERIALS, INC.Inventors: Kimberly Hinckley, Yizhen Zhang, Manuel A. Hernandez, Won B. Bang, Dmitry Lubomirsky
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Publication number: 20090197356Abstract: We have discovered a method of using the vacuum chuck/heater upon which a substrate wafer is positioned to determine whether the wafer is properly placed on the vacuum chuck. The method employs measurement of a rate of increase in pressure in a confined space beneath the substrate. Because the substrate is not hermetically sealed to the upper surface of the vacuum chuck/heater apparatus, pressure from the processing chamber above the substrate surface tends to leak around the edges of the substrate and into the space beneath the substrate which is at a lower pressure. A pressure sensing device, such as a pressure transducer is in communication with a confined volume present beneath the substrate. The rate of pressure increase in the confined volume is measured. If the substrate is well positioned on the vacuum chuck/heater apparatus, the rate of pressure increase in the confined volume beneath the substrate is slow.Type: ApplicationFiled: March 27, 2009Publication date: August 6, 2009Inventors: Won B. Bang, Yen-Kun Victor Wang
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Publication number: 20090113684Abstract: Techniques for a door system for sealing an opening between two chambers in a semiconductor processing system are described. The opening has at least one angled corner. The door system includes a door, actuator, and sealing member. The door is moveable in the plane and has at least one angled corner to align the door with the opening. The actuator moves the door to selectively open and close the opening. The sealing member seals the opening when the door is in a closed position. The door is sized to apply substantially uniform seal compression to the sealing member when in the closed position.Type: ApplicationFiled: October 17, 2008Publication date: May 7, 2009Applicant: Applied Materials, Inc.Inventors: Won B. Bang, Yen-Kun Victor Wang, Lawrence Chung-Lai Lei
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Publication number: 20090042407Abstract: A gas distributor for use in a semiconductor process chamber comprises a body. The body includes a first channel formed within the body and adapted to pass a first fluid from a first fluid supply line through the first channel to a first opening. A second channel is formed within the body and adapted to pass a second fluid from a second fluid supply line through the second channel to a second opening. The first and second openings are arranged to mix the fluids outside the body after the fluids pass through the openings.Type: ApplicationFiled: October 17, 2008Publication date: February 12, 2009Applicant: Applied Materials, Inc.Inventors: Won B. Bang, Srivivas D. Nemani, Phong Pham, Ellie Y. Yieh
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Patent number: 7456116Abstract: A method to form a silicon oxide layer, where the method includes the step of providing a continuous flow of a silicon-containing precursor to a chamber housing a substrate, where the silicon-containing precursor is selected from TMOS, TEOS, OMTS, OMCTS, and TOMCATS. The method may also include the steps of providing a flow of an oxidizing precursor to the chamber, and causing a reaction between the silicon-containing precursor and the oxidizing precursor to form a silicon oxide layer. The method may further include varying over time a ratio of the silicon-containing precursor:oxidizing precursor flowed into the chamber to alter a rate of deposition of the silicon oxide on the substrate.Type: GrantFiled: December 20, 2004Date of Patent: November 25, 2008Assignee: Applied Materials, Inc.Inventors: Nitin K. Ingle, Shan Wong, Xinyun Xia, Vikash Banthia, Won B. Bang, Yen-Kun V. Wang, Zheng Yuan
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Publication number: 20080121178Abstract: A gas distributor for use in a semiconductor process chamber comprises a body. The body includes a first channel formed within the body and adapted to pass a first fluid from a first fluid supply line through the first channel to a first opening. A second channel is formed within the body and adapted to pass a second fluid from a second fluid supply line through the second channel to a second opening. The first and second openings are arranged to mix the fluids outside the body after the fluids pass through the openings.Type: ApplicationFiled: November 28, 2006Publication date: May 29, 2008Applicant: Applied Materials, Inc.Inventors: Won B. Bang, Srivivas D. Nemani, Phong Pham, Ellie Y. Yieh
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Publication number: 20080121177Abstract: A gas distributor for use in a semiconductor process chamber comprises a body. The body includes a first channel formed within the body and adapted to pass a first fluid from a first fluid supply line through the first channel to a first opening. A second channel is formed within the body and adapted to pass a second fluid from a second fluid supply line through the second channel to a second opening. The first and second openings are arranged to mix the fluids outside the body after the fluids pass through the openings.Type: ApplicationFiled: November 28, 2006Publication date: May 29, 2008Applicant: Applied Materials, Inc.Inventors: Won B. Bang, Srivivas D. Nemani, Phong Pham, Ellie Y. Yieh
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Publication number: 20080115726Abstract: A chemical vapor deposition method for forming a dielectric material in a trench formed on a substrate. The method includes flowing a silicon-containing precursor into a process chamber housing the substrate, flowing an oxidizing gas into the chamber, and providing a hydroxyl-containing precursor in the process chamber. The method also includes reacting the silicon-containing precursor, oxidizing gas and hydroxyl-containing precursor to form the dielectric material in the trench. The ratio of the silicon-containing precursor to the oxidizing gas flowed into the chamber is increased over time to alter a rate of deposition of the dielectric material.Type: ApplicationFiled: November 16, 2007Publication date: May 22, 2008Applicant: Applied Materials, Inc.Inventors: Nitin K. Ingle, Shan Wong, Xinyun Xia, Vikash Banthia, Won B. Bang, Yen-Kun V. Wang
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Patent number: 7335609Abstract: A chemical vapor deposition method for forming a dielectric material in a trench formed on a substrate. The method includes flowing a silicon-containing precursor into a process chamber housing the substrate, flowing an oxidizing gas into the chamber, and providing a hydroxyl-containing precursor in the process chamber. The method also includes reacting the silicon-containing precursor, oxidizing gas and hydroxyl-containing precursor to form the dielectric material in the trench. The ratio of the silicon-containing precursor to the oxidizing gas flowed into the chamber is increased over time to alter a rate of deposition of the dielectric material.Type: GrantFiled: August 26, 2005Date of Patent: February 26, 2008Assignee: Applied Materials, Inc.Inventors: Nitin K. Ingle, Shan Wong, Xinyun Xia, Vikash Banthia, Won B. Bang, Yen-Kun V. Wang
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Patent number: 7205205Abstract: A method of operating a substrate processing chamber comprising transferring a first substrate into the substrate processing chamber and heating the substrate to a first temperature of at least 510° C.; depositing an insulating layer over the first substrate while reducing the temperature of the substrate from the first temperature to a second temperature that is lower than the first temperature; transferring the first substrate out of the substrate processing chamber; removing unwanted deposition material formed on interior surfaces of the chamber during the depositing step by introducing reactive halogen species into the chamber while increasing the temperature of chamber; transferring a second substrate into the substrate processing chamber and heating the substrate to the first temperature; and depositing an insulating layer over the second substrate while reducing the temperature of the substrate from the first temperature to the second temperature.Type: GrantFiled: November 12, 2003Date of Patent: April 17, 2007Assignee: Applied MaterialsInventors: Won B. Bang, Yen-Kun Wang, Kevin Mikio Mukai, Theresa Marie O. Liu
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Patent number: 7204888Abstract: Embodiments of the present invention provide an apparatus for constraining and supporting the lift pins to prevent or minimize lateral movement of the lift pins that causes substrate hand-off problems and associated degradation in substrate processing characteristics and results. In one embodiment, a lift pin assembly for manipulating a substrate above a support surface of a substrate support comprises a plurality of lift pins movable between an up position and a down position. The lift pins include top ends and bottom ends. The top ends are configured to be lifted above the support surface of the substrate support to contact a bottom surface of the substrate in the up position. The top ends are configured to be positioned at or below the support surface of the substrate support in the down position.Type: GrantFiled: May 1, 2003Date of Patent: April 17, 2007Assignee: Applied Materials, Inc.Inventors: Toan Q. Tran, Daniel S. Herkalo, Yen-Kun V. Wang, Jin Ho Lee, Dong Hyung Lee, Jang Seok Oh, Won B. Bang
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Publication number: 20040219006Abstract: Embodiments of the present invention provide an apparatus for constraining and supporting the lift pins to prevent or minimize lateral movement of the lift pins that causes substrate hand-off problems and associated degradation in substrate processing characteristics and results. In one embodiment, a lift pin assembly for manipulating a substrate above a support surface of a substrate support comprises a plurality of lift pins movable between an up position and a down position. The lift pins include top ends and bottom ends. The top ends are configured to be lifted above the support surface of the substrate support to contact a bottom surface of the substrate in the up position. The top ends are configured to be positioned at or below the support surface of the substrate support in the down position.Type: ApplicationFiled: May 1, 2003Publication date: November 4, 2004Applicant: Applied Materials, Inc.Inventors: Toan Q. Tran, Daniel S. Herkalo, Yen-Kun V. Wang, Jin Ho Lee, Dong Hyung Lee, Jang Seok Oh, Won B. Bang
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Publication number: 20040163590Abstract: Early detection of clogging of a liquid precursor injection valve in a gas delivery system of a semiconductor fabrication tool is allowed through monitoring pressure upstream of the injection valve. The increase in pressure associated with obstruction of the valve may trigger an alarm alerting the operator, allowing for rapid correction of the problem before substantial numbers of wafers are improperly processed utilizing the clogged valve.Type: ApplicationFiled: February 24, 2003Publication date: August 26, 2004Applicant: Applied Materials, Inc.Inventors: Toan Tran, Yen-Kun Wang, Steve Ghanayem, Sean Herbert, Won B. Bang
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Patent number: 6629559Abstract: A new mold solves problems that arise from differential changes in geometry inherent to casting metal in a ceramic mold, by control of the internal morphology between the surfaces of the mold that face the casting, and that face the external environment. Layered fabrication techniques are used to create a ceramic mold. For example, an internal geometry composed of a cellular arrangement of voids may be created within the mold wall. Structures may be designed and fabricated so that the ceramic mold fails at an appropriate time during the solidification and/or cooling of the casting. Thus, the casting itself is not damaged. The mold fails to avoid rupture, or even distortion, of the casting. A thin shell of ceramic defines the casting cavity. This shell must be thin enough to fail due to the stresses induced (primarily compressive) by the metal next to it and partly adherent to it.Type: GrantFiled: April 24, 2002Date of Patent: October 7, 2003Assignee: Massachusetts Institute of TechnologyInventors: Emanuel M. Sachs, Won B. Bang, Michael J. Cima