Cho, San Jose
Alvin K. Cho, San Jose, CA US
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20090063453 | APPARATUS, SYSTEM, AND METHOD FOR EXECUTING A DISTRIBUTED SPATIAL DATA QUERY - An apparatus, system, and method for executing a distributed spatial data query. The present invention allows a client to perform spatial queries against spatial data stored in a various formats in various separate databases. A view of the data is created in the relevant databases, wherein the spatial data is converted to WKB and stored as a BLOB. A federated server contains nicknames for the various database views, and also contains views of the data where the BLOB is converted back to a spatial data type. The federated server presents to clients an application view of the distributed heterogeneous spatial data such that the clients can treat the data as if it were a homogenous data source. Also taught is incorporating distributed non-spatial data into the application view by creating a nickname and a view on top of the nickname which derives spatial information from the non-spatial location information. | 03-05-2009 |
20090063524 | APPARATUS, SYSTEM, AND METHOD FOR EXECUTING A DISTRIBUTED SPATIAL DATA QUERY - A method for executing a distributed spatial data query. The present invention allows a client to perform spatial queries against spatial data stored in a various formats in various separate databases. A view of the data is created in the relevant databases, wherein the spatial data is converted to WKB and stored as a BLOB. A federated server contains nicknames for the various database views, and also contains views of the data where the BLOB is converted back to a spatial data type. The federated server presents to clients an application view of the distributed heterogeneous spatial data such that the clients can treat the data as if it were a homogenous data source. Also taught is incorporating distributed non-spatial data into the application view by creating a nickname and a view on top of the nickname which derives spatial information from the non-spatial location information. | 03-05-2009 |
Han Sao Cho, San Jose, CA US
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20150031187 | METHODS FOR FORMING A ROUND BOTTOM SILICON TRENCH RECESS FOR SEMICONDUCTOR APPLICATIONS - Embodiments of the present invention provide methods to etching a recess channel in a semiconductor substrate, for example, a silicon containing material. In one embodiment, a method of forming a recess structure in a semiconductor substrate includes transferring a silicon substrate into a processing chamber having a patterned photoresist layer disposed thereon exposing a portion of the substrate, providing an etching gas mixture including a halogen containing gas and a Cl | 01-29-2015 |
Han Soo Cho, San Jose, CA US
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20140377959 | METHODS FOR FORMING THREE DIMENSIONAL NAND STRUCTURES ATOP A SUBSTRATE - In some embodiments, methods for forming a three dimensional NAND structure include providing to a process chamber a substrate having alternating nitride layers and oxide layers or alternating polycrystalline silicon consisting layers and oxide layers formed atop the substrate and a photoresist layer formed atop the alternating layers; etching the photoresist layer to expose at least a portion of the alternating layers; providing a process gas comprising sulfur hexafluoride and oxygen to the process chamber; providing RF power of about 4 kW to about 6 kW to a first inductive RF coil and a second inductive RF coil disposed proximate the process chamber to ignite the process gas to form a plasma, wherein a current flowing through the first inductive RF coil is out of phase with RF current flowing through the second inductive RF coil; and etching through a desired number of the alternating layers to form a feature. | 12-25-2014 |
20150144154 | METHOD FOR IN-SITU CHAMBER CLEAN USING CARBON MONOXIDE (CO) GAS UTLIZED IN AN ETCH PROCESSING CHAMBER - Embodiments of the disclosure generally relate to methods of removing etch by-products from the plasma processing chamber using carbon monoxide or carbon dioxide. In one embodiment, a method for dry cleaning a processing chamber includes exposing a chamber component disposed within the processing chamber in absence of a substrate disposed therein to a first cleaning gas mixture comprising carbon monoxide or carbon dioxide, wherein a portion of the chamber component has a film layer or residues deposited thereon, and the film layer or residues comprises a refractory metal and/or a metal silicide. | 05-28-2015 |
Junho J.h. Cho, San Jose, CA US
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20130154684 | BIAS COMPENSATION METHOD AND SYSTEM FOR MINIMIZING PROCESS, VOLTAGE AND TEMPERATURE CORNER VARIATIONS - A system and method for calibrating bias in a data transmission system including a calibrated bias having impedance calibration for accommodating parameter variations in the data transmission system. A current mirror receives and balances bias currents between the calibrated bias and an output driver from the data transmission system. A digital compensation logic circuit is connected to the calibrated bias to adjust the calibrated bias for variations in parameters causing a current tail effect. A calibration logic circuit adjusts calibration due to variations in operational parameters, such that the tail current variations are minimized. | 06-20-2013 |
Junyeon Cho, San Jose, CA US
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20160086379 | INTERACTION WITH THREE-DIMENSIONAL VIDEO - In one embodiment, a method includes presenting to a user, on a display of a head-worn client computing device, a three-dimensional video including images of a real-life scene that is remote from the user's physical environment. The method also includes presenting to the user, on the display of the head-worn client computing device, a graphical object including an image of the user's physical environment or a virtual graphical object. | 03-24-2016 |
20160088380 | WEARABLE AUDIO DEVICE - In one embodiment, a device includes at least one transducer configured to vibrate within a first frequency range to generate a signal audible by a wearer of the device. The device includes the first material, which has an acoustic impedance at one or more frequencies within the first frequency range that is substantially similar to an acoustic impedance of the wearer's skin at the one or more frequencies. The device includes a second material that has an acoustic impedance at one or more frequencies within the first frequency range that substantially differs from an acoustic impedance of an environment of the device. | 03-24-2016 |
Kee Young Cho, San Jose, CA US
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20140377959 | METHODS FOR FORMING THREE DIMENSIONAL NAND STRUCTURES ATOP A SUBSTRATE - In some embodiments, methods for forming a three dimensional NAND structure include providing to a process chamber a substrate having alternating nitride layers and oxide layers or alternating polycrystalline silicon consisting layers and oxide layers formed atop the substrate and a photoresist layer formed atop the alternating layers; etching the photoresist layer to expose at least a portion of the alternating layers; providing a process gas comprising sulfur hexafluoride and oxygen to the process chamber; providing RF power of about 4 kW to about 6 kW to a first inductive RF coil and a second inductive RF coil disposed proximate the process chamber to ignite the process gas to form a plasma, wherein a current flowing through the first inductive RF coil is out of phase with RF current flowing through the second inductive RF coil; and etching through a desired number of the alternating layers to form a feature. | 12-25-2014 |
20150031187 | METHODS FOR FORMING A ROUND BOTTOM SILICON TRENCH RECESS FOR SEMICONDUCTOR APPLICATIONS - Embodiments of the present invention provide methods to etching a recess channel in a semiconductor substrate, for example, a silicon containing material. In one embodiment, a method of forming a recess structure in a semiconductor substrate includes transferring a silicon substrate into a processing chamber having a patterned photoresist layer disposed thereon exposing a portion of the substrate, providing an etching gas mixture including a halogen containing gas and a Cl | 01-29-2015 |
20150144154 | METHOD FOR IN-SITU CHAMBER CLEAN USING CARBON MONOXIDE (CO) GAS UTLIZED IN AN ETCH PROCESSING CHAMBER - Embodiments of the disclosure generally relate to methods of removing etch by-products from the plasma processing chamber using carbon monoxide or carbon dioxide. In one embodiment, a method for dry cleaning a processing chamber includes exposing a chamber component disposed within the processing chamber in absence of a substrate disposed therein to a first cleaning gas mixture comprising carbon monoxide or carbon dioxide, wherein a portion of the chamber component has a film layer or residues deposited thereon, and the film layer or residues comprises a refractory metal and/or a metal silicide. | 05-28-2015 |
Keung Youn Cho, San Jose, CA US
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20080297938 | Erase band compensated offset servo trimming - A hard disk drive with a disk that has a servo field with an A servo burst and a B servo burst. The A servo burst has a trimmed erase band. The trimmed erase band can be created by offsetting the write head relative to a burst centerline to reduce the width of the erase band. For example, the write head can be moved toward a centerline of the A servo burst. The offset can be a function of write current and cylinder location of the disk. The offsets are selected so that the resultant burst profiles do not contain a flat minimum portion. | 12-04-2008 |
20080297946 | Dual write gap perpendicular recording head - A perpendicular recording head for a hard disk drive. The head includes a non-magnetic backside shield that minimizes or eliminates the flow of backside flux through the head. The head can be fabricated by forming a non-magnetic backside shield layer on a main pole. Portions of the backside shield and main pole can be removed to form a tapered pole portion. A non-magnetic write-gap layer and write shield are then formed onto the backside shield and main pole. | 12-04-2008 |
20100149677 | SELF-SPINNING DISK BULK ERASURE FOR HARD DISK ASSEMBLY - A method for erasing a disk of a hard disk drive. The method includes moving the hard disk drive adjacent to an erasure head that emanates a magnetic field. The magnetic field and moving hard disk drive cause a disk of the hard disk drive to spin under a Lorentz force created by the magnetic field and moving disk. The magnetic field is applied by the erasure head for a duration that causes erasure of the entire disk. The spindle motor is not activated during the entire process. Not activating the spindle motor eliminates any Faraday coupling from the erasure head into the motor. | 06-17-2010 |
Kwangbo Cho, San Jose, CA US
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20120280113 | CORRELATED DOUBLE SAMPLING - Apparatus and a method for correlated double sampling using an up-counter for parallel image sensors. All bits of a counter are set to one. An offset signal is compared to a first reference signal to define a first period during which the counter is incremented. After the first period, all bits of the counter are inverted. A sensor signal is compared to a second reference signal to define a second period during which the counter is incremented to generate a correlated double sampling value. | 11-08-2012 |
20130026384 | TIME-OF-FLIGHT IMAGING SYSTEMS - Electronic devices may include time-of-flight image pixels. A time-of-flight image pixel may include first and second charge storage regions coupled to a photosensor and a transfer transistor with a gate terminal coupled to the first storage region. An electronic device may further include a light pulse emitter configured to emit pulses of light to be reflected by objects in a scene. Reflected portions of the emitted pulses of light may be captured along with background light by the time-of-flight image pixels. Time-of-flight image pixels may be configured sense the time-of-flight of the reflected portions of the emitted pulses. The electronic device may include processing circuitry configured to use the sensed time-of-flight of the reflected portions to generate depth images of a scene. Depth images may include depth-image pixel values that contain information corresponding to the distance of the objects in the scene from the electronic device. | 01-31-2013 |
20130027575 | METHOD AND APPARATUS FOR ARRAY CAMERA PIXEL READOUT - Imaging systems may include camera modules that include an array of image sensors. An image sensor may include multiple image pixel arrays arranged in rows and columns, multiple control circuits for operating the image pixels of that image sensor, and shared readout circuitry for reading out the image pixels of the image pixel arrays of that image sensor. Each control circuit may be operable to select rows of image pixels that extend across a row of image pixel arrays. Shared readout circuitry may include one or more line buffers configured to temporarily store image data captured by image pixels in the selected rows of image pixels. Shared readout circuitry may include selection circuitry configured to readout image data from groups of associated pixels located in separate image pixel arrays. An imaging system may include processing circuitry for processing the image data from each group of pixels. | 01-31-2013 |
20140078365 | COLUMN-BASED HIGH DYNAMIC RANGE IMAGING SYSTEMS - Electronic devices may have camera modules that include an image sensor and processing circuitry. An image sensor may include a pixel array having pixel rows and pixel columns. The image pixels in a pixel row may include long-integration pixels and short-integration pixels. Row control signal lines for each pixel row may include a row-select control line, a reset control line, and two transfer control lines or may include a row-select control line, two reset control lines, and a transfer control line. Row control circuitry may be used to operate the pixel array to capture a column-interleaved image with short-exposure pixel values and long-exposure pixel values interleaved in a column-based pattern. The column-interleaved image may be used to form an interpolated short-exposure image and an interpolated long-exposure image from which a column-based interleaved high-dynamic-range image is generated. | 03-20-2014 |
Myung Je Cho, San Jose, CA US
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20160119302 | Authentication Engine and Stream Cipher Engine Sharing in Digital Content Protection Architectures - A system for receiving and decrypting media content encrypted according to the HDCP protocol is described herein. A receiving device coupled to a plurality of content channels includes an authentication engine to authenticate each content channel and to generate an initial session key associated with each authenticated content channel. The content channels can be, for example, an HDMI channel or an MHL3 channel. A session key indicator indicating a session key used to encrypt media content is received, and an updated session key is generated. The receiving device also includes a stream cipher engine configured to decrypt received encrypted media content using the updated session key. Decrypted media content can then be displayed, for instance on a display of the receiving device. | 04-28-2016 |
Seon-Mee Cho, San Jose, CA US
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20120279943 | PROCESSING CHAMBER WITH COOLED GAS DELIVERY LINE - A method and apparatus for processing a substrate is provided. In one embodiment, the apparatus is in the form of a processing chamber that includes a chamber body having a processing volume defined therein. A substrate support, a gas delivery tube assembly and a plasma line source are disposed in the processing volume. The gas delivery tube assembly includes an inner tube is disposed in an outer tube. The inner tube has a passage for flowing a cooling fluid therein. The outer tube has a plurality of gas distribution apertures for providing processing gas into the processing volume. | 11-08-2012 |
Stephen Cho, San Jose, CA US
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20140032690 | Method and Apparatus For High-Speed Processing of Structured Application Messages in a Network Device - A method is disclosed for high-speed processing of structured application messages in a network device. According to one aspect, a network device receives a structured application layer message and identifies, in message classification requirements at the network device, a reference to a classification portion of the structured application layer message and an operation portion of the structured application layer message. The system extracts, based on one or more expressions, a portion of the message for classifying the structured application layer message and classifies the message using the extracted portion and according to the message classification requirements. At least in part by accessing information indicated by one or more location identifiers, at least one operation is performed on the classified structured application layer message. | 01-30-2014 |
Tae Cho, San Jose, CA US
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20160042920 | GROOVED INSULATOR TO REDUCE LEAKAGE CURRENT - A plasma source includes a first electrode and a second electrode having respective surfaces, and an insulator that is between and in contact with the electrodes. The electrode surfaces and the insulator surface substantially define a plasma cavity. The insulator surface defines one or more grooves configured to prevent deposition of material in a contiguous form on the insulator surface. A method of generating a plasma includes introducing one or more gases into a plasma cavity defined by a first electrode, a surface of an insulator that is in contact with the first electrode, and a second electrode that faces the first electrode. The insulator surface defines one or more grooves where portions of the insulator surface are not exposed to a central region of the cavity. The method further includes providing RF energy across the first and second electrodes to generate the plasma within the cavity. | 02-11-2016 |
Tae Seung Cho, San Jose, CA US
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20150060265 | DUAL DISCHARGE MODES OPERATION FOR REMOTE PLASMA - Embodiments of the present technology may include a method of processing a semiconductor substrate. The method may include providing the semiconductor substrate in a processing region. Additionally, the method may include flowing gas through a cavity defined by a powered electrode. The method may further include applying a negative voltage to the powered electrode. Also, the method may include striking a hollow cathode discharge in the cavity to form hollow cathode discharge effluents from the gas. The hollow cathode discharge effluents may then be flowed to the processing region through a plurality of apertures defined by electrically grounded electrode. The method may then include reacting the hollow cathode discharge effluents with the semiconductor substrate in the processing region. | 03-05-2015 |
20150155189 | POLARITY CONTROL FOR REMOTE PLASMA - Methods of controlling the polarity of capacitive plasma power applied to a remote plasma are described. Rather than applying a plasma power which involves both a positive and negative voltage swings equally, a capacitive plasma power is applied which favors either positive or negative voltage swings in order to select desirable process attributes. For example, the plasma power may be formed by applying a unipolar oscillating voltage between an electrode and a perforated plate. The unipolar oscillating voltage may have only positive or only negative voltages between the electrode and the perforated plate. The unipolar oscillating voltage may cross electrical ground in some portion of its oscillating voltage. | 06-04-2015 |
20150259802 | APPARATUS AND METHOD FOR DEPOSITING A COATING ON A SUBSTRATE AT ATMOSPHERIC PRESSURE - An apparatus for depositing a coating on a substrate at atmospheric pressure comprises (a) a plasma torch comprising a microwave source coupled to an antenna disposed within a chamber having an open end, the chamber comprising a gas inlet for flow of a gas over the antenna to generate a plasma jet; (b) a substrate positioned outside the open end of the chamber a predetermined distance away from a tip of the antenna; and (c) a target material to be coated on the substrate disposed at the tip of the antenna. | 09-17-2015 |
20160053376 | PLASMA UNIFORMITY CONTROL BY ARRAYS OF UNIT CELL PLASMAS - The present invention provides an apparatus having a plasma profile control plate disposed in a plasma processing chamber so as to locally alter plasma density to provide uniform plasma distribution across a substrate surface during processing. In one embodiment, a process kit includes a plate configured to be disposed in a plasma processing chamber, a plurality of apertures formed therethrough, the apertures configured to permit processing gases to flow through the plate, and an array of unit cells including at least one aperture formed in the plate, wherein each unit cell has an electrode assembly individually controllable relative to electrode assemblies disposed in at least two other unit cells. | 02-25-2016 |
Wongyu Cho, San Jose, CA US
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20090141709 | METHOD FOR INITIATING INTERNET TELEPHONE SERVICE FROM A WEB PAGE - A direct telephone dialing scheme for initiating internet telephone service from a web page is provided. The scheme allows a caller, using an internet telephone service, to place telephone call to a telephone number appearing on any web page directly from that web page. In one embodiment, a caller navigates to a desired web page on the internet and the caller dials a telephone number on that web page directly to initiate a two-way audio communication with the destination telephone number using an internet telephone service. The direct telephone dialing scheme of the present invention improves the accessibility and ease of use of internet telephone services. Furthermore, the direct telephone dialing scheme can be used with video, data, and fax communications which are supported by the VoIP data communication standard. | 06-04-2009 |
20090201918 | METHOD FOR INITIATING INTERNET TELEPHONE SERVICE FROM A WEB PAGE - A direct telephone dialing scheme for initiating internet telephone service from a web page is provided. The scheme allows a caller, using an internet telephone service, to place telephone call to a telephone number appearing on any web page directly from that web page. In one embodiment, a caller navigates to a desired web page on the internet and the caller dials a telephone number on that web page directly to initiate a two-way audio communication with the destination telephone number using an internet telephone service. The direct telephone dialing scheme of the present invention improves the accessibility and ease of use of internet telephone services. Furthermore, the direct telephone dialing scheme can be used with video, data, and fax communications which are supported by the VoIP data communication standard. | 08-13-2009 |