Patents by Inventor Tom Choi
Tom Choi 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: 9818621Abstract: Embodiments described herein relate to methods for etching a substrate. Patterning processes, such as double patterning and quadruple patterning processes, may benefit from the embodiments described herein which include performing an inert plasma treatment to implant ions into a spacer material, performing an etching process on an implanted region of the spacer material, and repeating the inert plasma treatment and the etching process to form a predominantly flat top spacer profile. The inert plasma treatment process may be a biased process and the etching process may be an unbiased process. Various processing parameters, such as pressure, may be controlled to influence a desired spacer profile.Type: GrantFiled: January 4, 2017Date of Patent: November 14, 2017Assignee: APPLIED MATERIALS, INC.Inventors: Aurelien Tavernier, Qingjun Zhou, Tom Choi, Yungchen Lin, Ying Zhang, Olivier Joubert
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Publication number: 20170243754Abstract: Embodiments described herein relate to methods for etching a substrate. Patterning processes, such as double patterning and quadruple patterning processes, may benefit from the embodiments described herein which include performing an inert plasma treatment to implant ions into a spacer material, performing an etching process on an implanted region of the spacer material, and repeating the inert plasma treatment and the etching process to form a predominantly flat top spacer profile. The inert plasma treatment process may be a biased process and the etching process may be an unbiased process. Various processing parameters, such as pressure, may be controlled to influence a desired spacer profile.Type: ApplicationFiled: January 4, 2017Publication date: August 24, 2017Inventors: Aurelien TAVERNIER, Qingjun ZHOU, Tom CHOI, Yungchen LIN, Ying ZHANG, Olivier JOUBERT
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Patent number: 9721807Abstract: Embodiments described herein relate to methods for patterning a substrate. Patterning processes, such as double patterning and quadruple patterning processes, may benefit from the embodiments described herein which include performing an inert plasma treatment on a spacer material, performing an etching process on a treated region of the spacer material, and repeating the inert plasma treatment and the etching process to form a desired spacer profile. The inert plasma treatment process may be a biased process and the etching process may be an unbiased process. Various processing parameters, such as process gas ratios and pressures, may be controlled to influence a desired spacer profile.Type: GrantFiled: March 24, 2016Date of Patent: August 1, 2017Assignee: Applied Materials, Inc.Inventors: Qingjun Zhou, Jungmin Ko, Tom Choi, Sean Kang, Jeremiah Pender, Srinivas D. Nemani, Ying Zhang
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Publication number: 20170061370Abstract: An electronic interactive airline-shipped-cargo handling and management system and method therefor comprising a least one IATA airline-cargo-information data extraction engine, at least one data base, at least one user portal for access by at least one stakeholder to manage, track, or reconcile an airline-cargo shipment, at least one mobile warehouse portal, at least one airline-shipped-cargo handling server having at least one messaging engine, at least one mobile warehouse management system and a network connecting all of the foregoing for the access and management of airline-cargo-information data extracted from at least one airline's IATA messages by said IATA airline-cargo-information data extraction engine, and the transmission of said extracted airline-cargo-information data to and from said at least one user portal and said at least one mobile warehouse portal respectively, in real time, while the shipped airline-cargo is being processed through a cargo handling logistics' chain.Type: ApplicationFiled: November 14, 2016Publication date: March 2, 2017Inventors: TOM CHOI, LI ZHAO, VIDA LEE SHAVER, MICHAEL SERZO, ALBERT KIM, CECILIA LIM, SAN M. CHU, DONG HYUN KIM, SUNG SUB MOON
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Patent number: 9478433Abstract: Embodiments described herein relate to methods for patterning a substrate. Patterning processes, such as double patterning and quadruple patterning processes, may benefit from the embodiments described herein which include performing an inert plasma treatment on a spacer material, performing an etching process on a treated region of the spacer material, and repeating the inert plasma treatment and the etching process to form a desired spacer profile. The inert plasma treatment process may be a biased process and the etching process may be an unbiased process. Various processing parameters, such as process gas ratios and pressures, may be controlled to influence a desired spacer profile.Type: GrantFiled: December 14, 2015Date of Patent: October 25, 2016Assignee: APPLIED MATERIALS, INC.Inventors: Qingjun Zhou, Jungmin Ko, Tom Choi, Sean Kang, Jeremiah Pender, Srinivas D. Nemani, Ying Zhang
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Publication number: 20160307772Abstract: Embodiments described herein relate to methods for etching a substrate. Patterning processes, such as double patterning and quadruple patterning processes, may benefit from the embodiments described herein which include performing an inert plasma treatment to implant ions into a spacer material, performing an etching process on an implanted region of the spacer material, and repeating the inert plasma treatment and the etching process to form a predominantly flat top spacer profile. The inert plasma treatment process may be a biased process and the etching process may be an unbiased process. Various processing parameters, such as pressure, may be controlled to influence a desired spacer profile.Type: ApplicationFiled: December 14, 2015Publication date: October 20, 2016Inventors: Tom CHOI, Qingjun ZHOU, Ying ZHANG
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Publication number: 20160293438Abstract: Embodiments described herein relate to methods for patterning a substrate. Patterning processes, such as double patterning and quadruple patterning processes, may benefit from the embodiments described herein which include performing an inert plasma treatment on a spacer material, performing an etching process on a treated region of the spacer material, and repeating the inert plasma treatment and the etching process to form a desired spacer profile. The inert plasma treatment process may be a biased process and the etching process may be an unbiased process. Various processing parameters, such as process gas ratios and pressures, may be controlled to influence a desired spacer profile.Type: ApplicationFiled: March 24, 2016Publication date: October 6, 2016Inventors: Qingjun ZHOU, Jungmin KO, Tom CHOI, Sean KANG, Jeremiah PENDER, Srinivas D. NEMANI, Ying ZHANG
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Publication number: 20160293437Abstract: Embodiments described herein relate to methods for patterning a substrate. Patterning processes, such as double patterning and quadruple patterning processes, may benefit from the embodiments described herein which include performing an inert plasma treatment on a spacer material, performing an etching process on a treated region of the spacer material, and repeating the inert plasma treatment and the etching process to form a desired spacer profile. The inert plasma treatment process may be a biased process and the etching process may be an unbiased process. Various processing parameters, such as process gas ratios and pressures, may be controlled to influence a desired spacer profile.Type: ApplicationFiled: December 14, 2015Publication date: October 6, 2016Inventors: Qingjun ZHOU, Jungmin KO, Tom CHOI, Sean KANG, Jeremiah PENDER, Srinivas D. NEMANI, Ying ZHANG
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Publication number: 20150347960Abstract: The present invention related to a system and computer-implemented method directed to cargo handling services. A stakeholder captures airline data and customer related cargo data and transmits the data to at least one other stakeholder through either a customer service portal or a mobile warehouse management system. The system is a cargo management system comprising three parts. First, a messaging engine adapted to transmit airline data. Second, a customer service portal receives data from the messaging engine for a stakeholder, such that the stakeholder may manage, track, or reconcile a cargo shipment. Finally, a mobile warehouse management system implemented for recording data and tracking cargo in real-time.Type: ApplicationFiled: December 16, 2014Publication date: December 3, 2015Inventors: Tom Choi, Li Zhao, Vida Lee Shaver, Michael Serzo, Albert Kim, Cecilia Lim, San M. Chu, Dong Hyun Kim, Sung Sub Moon
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Patent number: 8912633Abstract: A method for etching features in a silicon layer is provided. A hard mask layer is formed over the silicon layer. A photoresist layer is formed over the hard mask layer. The hard mask layer is opened. The photoresist layer is stripped by providing a stripping gas; forming a plasma with the stripping gas by providing a high frequency RF power and a low frequency RF power, wherein the low frequency RF power has a power less than 50 watts; and stopping the stripping gas when the photoresist layer is stripped. The opening the hard mask layer and the stripping the photoresist layer are performed in a same chamber.Type: GrantFiled: September 7, 2012Date of Patent: December 16, 2014Assignee: Lam Research CorporationInventors: Sangjun Cho, Tom Choi, Taejoon Han, Sean Kang, Prabhakara Gopaladasu, Bi-Ming Yen
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Patent number: 8906810Abstract: An all-in-one trench-over-via etch wherein etching of a low-k material beneath a metal hard mask of titanium nitride containing material is carried out in alternating steps of (a) etching the low-k material while maintaining chuck temperature at about 45 to 80° C. and (b) metal hard mask rounding and Ti-based residues removal while maintaining chuck temperature at about 90 to 130° C.Type: GrantFiled: May 7, 2013Date of Patent: December 9, 2014Assignee: Lam Research CorporationInventors: Ananth Indrakanti, Bhaskar Nagabhirava, Alan Jensen, Tom Choi
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Publication number: 20140335697Abstract: An all-in-one trench-over-via etch wherein etching of a low-k material beneath a metal hard mask of titanium nitride containing material is carried out in alternating steps of (a) etching the low-k material while maintaining chuck temperature at about 45 to 80° C. and (b) metal hard mask rounding and Ti-based residues removal while maintaining chuck temperature at about 90 to 130° C.Type: ApplicationFiled: May 7, 2013Publication date: November 13, 2014Applicant: Lam Research CorporationInventors: Ananth Indrakanti, Bhaskar Nagabhirava, Alan Jensen, Tom Choi
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Publication number: 20130001754Abstract: A method for etching features in a silicon layer is provided. A hard mask layer is formed over the silicon layer. A photoresist layer is formed over the hard mask layer. The hard mask layer is opened. The photoresist layer is stripped by providing a stripping gas; forming a plasma with the stripping gas by providing a high frequency RF power and a low frequency RF power, wherein the low frequency RF power has a power less than 50 watts; and stopping the stripping gas when the photoresist layer is stripped. The opening the hard mask layer and the stripping the photoresist layer are performed in a same chamber.Type: ApplicationFiled: September 7, 2012Publication date: January 3, 2013Applicant: LAM RESEARCH CORPORATIONInventors: Sangjun Cho, Tom Choi, Taejoon Han, Sean Kang, Prabhakara Gopaladasu, Bi-Ming Yen
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Patent number: 8283255Abstract: A method for etching features in a silicon layer is provided. A hard mask layer is formed over the silicon layer. A photoresist layer is formed over the hard mask layer. The hard mask layer is opened. The photoresist layer is stripped by providing a stripping gas; forming a plasma with the stripping gas by providing a high frequency RF power and a low frequency RF power, wherein the low frequency RF power has a power less than 50 watts; and stopping the stripping gas when the photoresist layer is stripped. The opening the hard mask layer and the stripping the photoresist layer are performed in a same chamber.Type: GrantFiled: May 24, 2007Date of Patent: October 9, 2012Assignee: Lam Research CorporationInventors: Sangjun Cho, Tom Choi, Taejoon Han, Sean Kang, Prabhakara Gopaladasu, Bi-Ming Yen
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Patent number: 8124516Abstract: A method of forming dual damascene features in a porous low-k dielectric layer is provided. Vias are formed in the porous low-k dielectric layer. An organic planarization layer is formed over the porous low-k dielectric layer, wherein the organic layer fills the vias. A photoresist mask is formed over the organic planarization layer. Features are etched into the organic planarization layer comprising providing a CO2 containing etch gas and forming a plasma from the CO2 containing etch gas, which etches the organic planarization layer. Trenches are etched into the porous low-k dielectric layer using the organic planarization layer as a mask. The organic planarization layer is stripped.Type: GrantFiled: August 21, 2006Date of Patent: February 28, 2012Assignee: Lam Research CorporationInventors: Sean S. Kang, Sang Jun Cho, Tom Choi, Taejoon Han
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Patent number: 7782591Abstract: Particles are trapped away from a wafer transport zone in a chamber. A first electrode is on one side of the zone. A second electrode is on an opposite side of the zone. A power supply connected across the electrodes establishes an electrostatic field between the electrodes. The field traps particles at the electrodes, away from the zone. For transporting the wafer from the chamber, the second electrode mounts the wafer for processing, and the first electrode is opposite to the second electrode defining a process space. The zone is in the space with a separate part of the space separating the zone from each electrode. Particles are urged away from the wafer by simultaneously terminating plasma processing of the wafer, connecting the second electrode to ground, applying a positive DC potential to the first electrode, and de-chucking the wafer from the second electrode into the zone.Type: GrantFiled: June 22, 2007Date of Patent: August 24, 2010Assignee: Lam Research CorporationInventors: Sangjun Cho, Sean Kang, Tom Choi, Taejoon Han
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Patent number: 7479457Abstract: Atomic oxygen generated in oxygen stripping plasmas reacts with and damages low-k dielectric materials during stripping of dielectric post etch residues. While damage of low-k dielectric materials during stripping of dielectric post etch residues is lower with hydrogen stripping plasmas, hydrogen stripping plasmas exhibit lower strip rates. Inclusion of oxygen in a hydrogen stripping plasma improves both photoresist strip rate and uniformity, while maintaining a hydrogen to oxygen ratio avoids low-k dielectric material damage.Type: GrantFiled: September 8, 2005Date of Patent: January 20, 2009Assignee: Lam Research CorporationInventors: Cristian Paduraru, Alan Jensen, David Schaefer, Robert Charatan, Tom Choi
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Publication number: 20080314733Abstract: Particles are trapped away from a wafer transport zone in a chamber. A first electrode is on one side of the zone. A second electrode is on an opposite side of the zone. A power supply connected across the electrodes establishes an electrostatic field between the electrodes. The field traps particles at the electrodes, away from the zone. For transporting the wafer from the chamber, the second electrode mounts the wafer for processing, and the first electrode is opposite to the second electrode defining a process space. The zone is in the space with a separate part of the space separating the zone from each electrode. Particles are urged away from the wafer by simultaneously terminating plasma processing of the wafer, connecting the second electrode to ground, applying a positive DC potential to the first electrode, and de-chucking the wafer from the second electrode into the zone.Type: ApplicationFiled: June 22, 2007Publication date: December 25, 2008Applicant: LAM RESEARCH CORPORATIONInventors: Sangjun Cho, Sean Kang, Tom Choi, Taejoon Han
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Publication number: 20080293249Abstract: A method for etching features in a silicon layer is provided. A hard mask layer is formed over the silicon layer. A photoresist layer is formed over the hard mask layer. The hard mask layer is opened. The photoresist layer is stripped by providing a stripping gas; forming a plasma with the stripping gas by providing a high frequency RF power and a low frequency RF power, wherein the low frequency RF power has a power less than 50 watts; and stopping the stripping gas when the photoresist layer is stripped. The opening the hard mask layer and the stripping the photoresist layer are performed in a same chamber.Type: ApplicationFiled: May 24, 2007Publication date: November 27, 2008Inventors: Sangjun Cho, Tom Choi, Taejoon Han, Sean Kang, Prabhakara Gopaladasu, Bi-Ming Yen
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Publication number: 20080064214Abstract: In the fabrication of an integrated circuit where a porous silicon oxide layer is formed over a surface of a semiconductor substrate to electrically isolate two conductive metal layers, a via through the porous silicon oxide layer has an opening etched through the porous silicon oxide layer, a self-assembled monolayer adhering to an etched surface of the opening and to exposed pores, and a conductive material filling the opening.Type: ApplicationFiled: September 13, 2006Publication date: March 13, 2008Applicant: LAM RESEARCH CORPORATIONInventors: Taejoon Han, Sang-Jun Cho, Sung-Jin Cho, Tom Choi, Prabhakara Gopaladasu, Sean Kang