Patents by Inventor Sungwon Ha

Sungwon Ha 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).

  • Publication number: 20150247237
    Abstract: Embodiments described herein relate to a faceplate for improving film uniformity. A semiconductor processing apparatus includes a pedestal, an edge ring and a faceplate having distinct regions with differing hole densities. The faceplate has an inner region and an outer region which surrounds the inner region. The inner region has a greater density of holes formed therethrough when compared to the outer region. The inner region is sized to correspond with a substrate being processed while the outer region is sized to correspond with the edge ring.
    Type: Application
    Filed: January 12, 2015
    Publication date: September 3, 2015
    Inventors: Sungwon HA, Kwangduk Douglas LEE, Ganesh BALASUBRAMANIAN, Juan Carlos ROCHA-ALVAREZ, Martin Jay SEAMONS, Ziqing DUAN, Zheng John YE, Bok Hoen KIM, Lei JING, Ngoc LE, Ndanka MUKUTI
  • Publication number: 20150136325
    Abstract: A system for modifying the uniformity pattern of a thin film deposited in a plasma processing chamber includes a single radio-frequency (RF) power source that is coupled to multiple points on the discharge electrode of the plasma processing chamber. Positioning of the multiple coupling points, a power distribution between the multiple coupling points, or a combination of both are selected to at least partially compensate for a consistent non-uniformity pattern of thin films produced by the chamber. The power distribution between the multiple coupling points may be produced by an appropriate RF phase difference between the RF power applied at each of the multiple coupling points.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 21, 2015
    Inventors: Zheng John YE, Ganesh BALASUBRAMANIAN, Thuy BRICHER, Jay D. PINSON, II, Hiroji HANAWA, Juan Carlos ROCHA-ALVAREZ, Kwangduk Douglas LEE, Martin Jay SEAMONS, Bok Hoen KIM, Sungwon HA
  • Patent number: 7145913
    Abstract: In the present scalable system routing method, received packets are associating with threads for processing the received packets. While a previously received packet is being processed, arrival of an interrupt is checked. If there is an interrupt, a thread is created associating the interrupt is created. Then, a determination of whether the thread associated with the interrupt has a priority that is higher than the priority of a thread associated with the previously received packet is made. If the thread associated with the interrupt has a higher priority than the previously received packet, the thread associated with the previously received packet is saved in a Shared Arena storage area. However, if the thread associated with the interrupt does not have a higher priority than the previously received packet, the thread associated with the interrupt is queued.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: December 5, 2006
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: David Craig, Hwangnam Kim, Sungwon Ha, Sung-wook Han, Constantine Polychronopoulos
  • Patent number: 7136353
    Abstract: Improved quality of service management for multiple connections between a sender and a receiver may be achieved by allocating a host-level transmission rate among the multiple connections based on a ratio of a weight associated with each connection and a sum of the weights associated the connections. Data packets associated with the connections may then be selectively transmitted to the receiver such that data packets having a highest difference between the allocated transmission rate and an actual transmission rate are transmitted first. The data packets transmitted to the sender may also be clocked using a transmission timer having period corresponding to the host-level transmission rate.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: November 14, 2006
    Assignee: Bytemobile, Inc.
    Inventors: Sungwon Ha, Sung-wook Han, Upamanyu Madhow, Tae-eun Kim, Constantine Polychronopoulos
  • Patent number: 7099273
    Abstract: Improved data transport and management within a network communication system may be achieved by utilizing a transmit timer incorporated within the sender device and exploiting host-level statistics for a plurality of connections between a sender and receiver. The period of the transmit timer may be periodically adjusted based on a ratio of the smoothed round-trip time and the smoothed congestion window, thereby reducing or eliminating bursty data transmission commonly associated with conventional TCP architectures. For applications having a plurality of connections between a sender and a receiver that share a common channel, such as web applications, the congestion window and smoothed round trip time estimates for all active connections may be used to initialize new connections and allocate bandwidth among existing connections.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: August 29, 2006
    Assignee: Bytemobile, Inc.
    Inventors: Sungwon Ha, Sung-wook Han, Tae-eun Kim, Vaduvur Bharghavan, Upamanyu Madhow, Kannan Ramchandran
  • Publication number: 20030063564
    Abstract: Improved quality of service management for multiple connections between a sender and a receiver may be achieved by allocating a host-level transmission rate among the multiple connections based on a ratio of a weight associated with each connection and a sum of the weights associated the connections. Data packets associated with the connections may then be selectively transmitted to the receiver such that data packets having a highest difference between the allocated transmission rate and an actual transmission rate are transmitted first. The data packets transmitted to the sender may also be clocked using a transmission timer having period corresponding to the host-level transmission rate. As a result, the destructive interference that may occur as different connections compete with one another for access to the same bandwidth limited channel may be reduced or eliminated.
    Type: Application
    Filed: May 17, 2002
    Publication date: April 3, 2003
    Inventors: Sungwon Ha, Sung-wook Han, Upamanyu Madhow, Tae-eun Kim, Constantine Polychronopoulos
  • Publication number: 20020150048
    Abstract: Improved data transport and management within a network communication system may be achieved by utilizing a transmit timer incorporated within the sender device and exploiting host-level statistics for a plurality of connections between a sender and receiver. The period of the transmit timer may be periodically adjusted based on a ratio of the smoothed round-trip time and the smoothed congestion window, thereby reducing or eliminating bursty data transmission commonly associated with conventional TCP architectures. For applications having a plurality of connections between a sender and a receiver that share a common channel, such as web applications, the congestion window and smoothed round trip time estimates for all active connections may be used to initialize new connections and allocate bandwidth among existing connections.
    Type: Application
    Filed: January 29, 2002
    Publication date: October 17, 2002
    Inventors: Sungwon Ha, Sung-wook Han, Tae-eun Kim, Vaduvur Bharghavan, Upamanyu Madhow, Kannan Ramchandran
  • Publication number: 20020114338
    Abstract: In the present scalable system routing method, received packets are associating with threads for processing the received packets. While a previously received packet is being processed, arrival of an interrupt is checked. If there is an interrupt, a thread is created associating the interrupt is created. Then, a determination of whether the thread associated with the interrupt has a priority that is higher than the priority of a thread associated with the previously received packet is made. If the thread associated with the interrupt has a higher priority than the previously received packet, the thread associated with the previously received packet is saved in a Shared Arena storage area. However, if the thread associated with the interrupt does not have a higher priority than the previously received packet, the thread associated with the interrupt is queued.
    Type: Application
    Filed: February 13, 2002
    Publication date: August 22, 2002
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: David Craig, Hwangnam Kim, Sungwon Ha, Sung-wook Han, Constantine Polychronopoulos