Patents by Inventor Thomas Choi
Thomas 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: 11437242Abstract: Exemplary methods of etching semiconductor substrates may include flowing a fluorine-containing precursor into a processing region of a semiconductor processing chamber. The processing region may house a substrate having an exposed region of a first silicon-containing material and an exposed region of a second silicon-containing material. The second silicon-containing material may be exposed within a recessed feature defined by the substrate. The methods may include flowing a silicon-containing precursor into the processing region of the semiconductor processing chamber. The methods may include forming a plasma within the processing region of the semiconductor processing chamber to generate plasma effluents of the fluorine-containing precursor and the silicon-containing precursor. The methods may include contacting the substrate with the plasma effluents. The methods may include removing at least a portion of the second silicon-containing material.Type: GrantFiled: November 27, 2018Date of Patent: September 6, 2022Assignee: Applied Materials, Inc.Inventors: Jungmin Ko, Kwang-Soo Kim, Thomas Choi, Nitin Ingle
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Patent number: 9083556Abstract: In recent years, the use of spam zombies has become a preferred method of sending spam. In fact, it is estimated that over 90% of all spam comes from spam zombies. Although existing spam zombie detection mechanisms such as the Spamhaus XBL blacklist exist, these techniques are limited in that they cannot block spam from newly created spam zombies. The present invention relates to a system and method for detecting malicious e-mails from spam zombies, the system comprising a processor operable to process a server identification value of a sending source by separating the value into one or more domain level terms to allow each unique term to be tokenized with an index value and to apply the one or more tokenized values as a learning feature in a learning algorithm trained to identify spam zombies.Type: GrantFiled: September 5, 2007Date of Patent: July 14, 2015Assignee: RPX CLEARINGHOUSE LLCInventor: Thomas Choi
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Patent number: 8848361Abstract: The present solution provides an adjustable docking apparatus configurable to accommodate a variety of mobile electronic devices. The adjustable docking apparatus is removably coupled to a base electronic device. The apparatus further includes an electrical connector movably and removably connected to the adjustable docking apparatus and electrically coupleable to the base electronic device.Type: GrantFiled: August 31, 2012Date of Patent: September 30, 2014Assignee: SDI TechnologiesInventors: Eric Holzer, Mary Beth Poandl, Thomas Choi, Andrew Skurdal
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Publication number: 20130058036Abstract: The present solution provides an adjustable docking apparatus configurable to accommodate a variety of mobile electronic devices. The adjustable docking apparatus is removably coupled to a base electronic device. The apparatus further includes an electrical connector movably and removably connected to the adjustable docking apparatus and electrically coupleable to the base electronic device.Type: ApplicationFiled: August 31, 2012Publication date: March 7, 2013Inventors: Eric Holzer, Mary Beth Poandl, Thomas Choi, Andrew Skurdal
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Patent number: 7738247Abstract: A removable/replaceable docking unit includes a cradle, a dock connector extending through an opening in a bottom portion of the cradle, a circuit board to which the dock connector is integrally attached, a wire connector integrally attached to the circuit board at a side thereof opposite the dock connector and the dock connector and the wire connector communicatively coupled via the circuit board and a removable connector provided in the cradle for removably connecting the docking unit to an electronic device.Type: GrantFiled: January 5, 2007Date of Patent: June 15, 2010Assignee: SDI Technologies Inc.Inventor: Thomas Choi
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Publication number: 20080301809Abstract: In recent years, the use of spam zombies has become a preferred method of sending spam. In fact, it is estimated that over 90% of all spam comes from spam zombies. Although existing spam zombie detection mechanisms such as the Spamhaus XBL blacklist exist, these techniques are limited in that they cannot block spam from newly created spam zombies. The present invention relates to a system and method for detecting malicious e-mails from spam zombies, the system comprising a processor operable to process a server identification value of a sending source by separating the value into one or more domain level terms to allow each unique term to be tokenized with an index value and to apply the one or more tokenized values as a learning feature in a learning algorithm trained to identify spam zombies.Type: ApplicationFiled: September 5, 2007Publication date: December 4, 2008Inventor: THOMAS CHOI
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Publication number: 20080164845Abstract: A removable/replaceable docking unit includes a cradle, a dock connector extending through an opening in a bottom portion of the cradle, a circuit board to which the dock connector is integrally attached, a wire connector integrally attached to the circuit board at a side thereof opposite the dock connector and the dock connector and the wire connector communicatively coupled via the circuit board and a removable connector provided in the cradle for removably connecting the docking unit to an electronic device.Type: ApplicationFiled: January 5, 2007Publication date: July 10, 2008Inventor: Thomas Choi
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Publication number: 20070287292Abstract: A method of forming a feature in a low-k dielectric layer is provided. A low-k dielectric layer is placed over a substrate. A patterned photoresist mask is placed over the low-k dielectric layer. At least one feature is etched into the low-k dielectric layer. A CO conditioning is preformed on the at least one feature after the at least one feature is etched. The patterned photoresist mask is stripped after the CO conditioning.Type: ApplicationFiled: May 3, 2007Publication date: December 13, 2007Applicant: LAM RESEARCH CORPORATIONInventors: Siyi LI, Helen ZHU, Howard DANG, Thomas CHOI, Peter LOEWENHARDT
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Publication number: 20070282770Abstract: A system and method is provided for filtering anomalous electronic communications, for example spam. In particular the method provides for detecting behavior data or behavioral characteristics of a source of the electronic communication, processing of the behavioral characteristic data to determine anomalous communications and filtering anomalous communications. Beneficially source behavior data comprises that of a sending host and its neighboring hosts. Preferably, by employing a machine learning algorithm, detection is based on knowledge obtained during a training period.Type: ApplicationFiled: May 15, 2006Publication date: December 6, 2007Inventor: Thomas Choi
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Publication number: 20070253222Abstract: A nightlight according to the invention may comprise a base; a lighting device on the base; and a power source in the base for the lighting device; an outer housing mounted on the base and surrounding the lighting device, having a window through which light can project from the lighting device; an image support within the outer housing for holding at least one image between the lighting device and the window, whereby the image is illuminated by the lighting device and visible through the window. The image support may be rotatably mounted within the outer housing, and capable of supporting a plurality of images and of being selectively rotated into a position for displaying a selected one of the images through the window. The image support may be a cylindrical drum. The image support may be rotatable by a ring which is accessible by a user for manually rotating the drum. The image may be a pictorial image or may be formed by perforations formed in the image support.Type: ApplicationFiled: April 27, 2006Publication date: November 1, 2007Inventors: John Driska, Gary Schwartz, Thomas Choi
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Publication number: 20070153463Abstract: An audio supply apparatus such as a radio with a receptacle for a MP3 player. The receptacle includes a recess with a cradle therein sized to receive various thickness and shape MP3 players. A slide to the rear of the MP3 player in the cradle, adjustable by a thumb screw or a similar functioning device, for moving a plate in a gap between the rear of the player and the rear wall of the cradle to provide a position support for the rear side of the MP3 player. An electrical connection in the cradle to the supported MP3 player. An optional adapter in the cradle a gap to the front of the MP3 player.Type: ApplicationFiled: January 4, 2006Publication date: July 5, 2007Inventor: Thomas Choi
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Publication number: 20050006346Abstract: A method for removing organic material over a substrate is provided. The substrate is placed in a plasma processing chamber. A first gas is provided to an inner zone within the plasma processing chamber. A second gas is provided to an outer zone of the plasma processing chamber, wherein the outer zone surrounds the inner zone and the second gas has a carbon containing component, wherein a concentration of the carbon containing component of the second gas is greater than a concentration of the carbon containing component in the first gas. Plasmas are simultaneously generated from the first gas and second gas. Some or all of the organic material is removed using the generated plasmas.Type: ApplicationFiled: June 25, 2004Publication date: January 13, 2005Inventors: Rao Annapragada, Odette Turmel, Kenji Takeshita, Lily Zheng, Thomas Choi, David Pirkle
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Patent number: 6461974Abstract: A method of etching a tungsten film, comprising the steps of supporting a semiconductor substrate having a tungsten film thereon on a substrate support in an interior of a plasma etcher, supplying process gas to the interior of the plasma etcher, energizing the process gas into a plasma state, etching the tungsten film by exposing the substrate to the plasma, and heating the substrate to a temperature of at least 100° C. during the etching step. The etching step can include a low temperature main etch below 100° C. followed by a high temperature overetch above 100° C., the process gas including a fluorine containing gas during the main etch and a chlorine containing gas during the overetch. The tungsten film can be located over a dielectric film which serves as a stop layer during the etching step. The tungsten film can be pure tungsten and the dielectric layer can be a silicon oxide film having a thickness of 200 Å or less.Type: GrantFiled: October 6, 2000Date of Patent: October 8, 2002Assignee: Lam Research CorporationInventors: Tuqiang Ni, Kenji Takeshita, Thomas Choi
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Patent number: D560650Type: GrantFiled: January 4, 2006Date of Patent: January 29, 2008Assignee: SDI Technologies, Inc.Inventor: Thomas Choi