Patents by Inventor Chul Woong Lee

Chul Woong Lee 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: 20160087101
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a fast etching region comprising phosphorous in an active region and forming a first trench in the active region by recessing the fast etching region. The methods may also include forming a second trench in the active region by enlarging the first trench using a directional etch process and forming a stressor in the second trench. The second trench may include a notched portion of the active region.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Dong-Suk SHIN, Chul-Woong Lee, Hoi-Sung Chung, Young-Tak Kim, Nae-In Lee
  • Publication number: 20160079424
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a fast etching region comprising phosphorous in an active region and forming a first trench in the active region by recessing the fast etching region. The methods may also include forming a second trench in the active region by enlarging the first trench using a directional etch process and forming a stressor in the second trench. The second trench may include a notched portion of the active region.
    Type: Application
    Filed: November 25, 2015
    Publication date: March 17, 2016
    Inventors: Dong-Suk SHIN, Chul-Woong Lee, Hoi-Sung Chung, Young-Tak Kim, Nae-In Lee
  • Publication number: 20160064565
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a fast etching region comprising phosphorous in an active region and forming a first trench in the active region by recessing the fast etching region. The methods may also include forming a second trench in the active region by enlarging the first trench using a directional etch process and forming a stressor in the second trench. The second trench may include a notched portion of the active region.
    Type: Application
    Filed: November 11, 2015
    Publication date: March 3, 2016
    Inventors: Dong-Suk SHIN, Chul-Woong LEE, Hoi-Sung CHUNG, Young-Tak KIM, Nae-In LEE
  • Patent number: 9257520
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a trench in an active region and the trench may include a notched portion of the active region. The methods may also include forming an embedded stressor in the trench. The embedded stressor may include a lower semiconductor layer and an upper semiconductor layer, which has a width narrower than a width of the lower semiconductor layer. A side of the upper semiconductor layer may not be aligned with a side of the lower semiconductor layer and an uppermost surface of the upper semiconductor layer may be higher than an uppermost surface of the active region.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: February 9, 2016
    Assignee: Samsung Electronics Co, Ltd.
    Inventors: Dong-Suk Shin, Hyun-Chul Kang, Dong-Hyun Roh, Pan-Kwi Park, Geo-Myung Shin, Nae-In Lee, Chul-Woong Lee, Hoi-Sung Chung, Young-Tak Kim
  • Patent number: 9214530
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a fast etching region comprising phosphorous in an active region and forming a first trench in the active region by recessing the fast etching region. The methods may also include forming a second trench in the active region by enlarging the first trench using a directional etch process and forming a stressor in the second trench. The second trench may include a notched portion of the active region.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: December 15, 2015
    Assignee: Samsung Electronic Co., Ltd.
    Inventors: Dong-Suk Shin, Chul-Woong Lee, Hoi-Sung Chung, Young-Tak Kim, Nae-In Lee
  • Patent number: 9129952
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a trench in an active region and the trench may include a notched portion of the active region. The methods may also include forming an embedded stressor in the trench. The embedded stressor may include a lower semiconductor layer and an upper semiconductor layer, which has a width narrower than a width of the lower semiconductor layer. A side of the upper semiconductor layer may not be aligned with a side of the lower semiconductor layer and an uppermost surface of the upper semiconductor layer may be higher than an uppermost surface of the active region.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: September 8, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Suk Shin, Hyun-Chul Kang, Dong-Hyun Roh, Pan-Kwi Park, Geo-Myung Shin, Nae-In Lee, Chul-Woong Lee, Hoi-Sung Chung, Young-Tak Kim
  • Publication number: 20150214329
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a trench in an active region and the trench may include a notched portion of the active region. The methods may also include forming an embedded stressor in the trench. The embedded stressor may include a lower semiconductor layer and an upper semiconductor layer, which has a width narrower than a width of the lower semiconductor layer. A side of the upper semiconductor layer may not be aligned with a side of the lower semiconductor layer and an uppermost surface of the upper semiconductor layer may be higher than an uppermost surface of the active region.
    Type: Application
    Filed: April 7, 2015
    Publication date: July 30, 2015
    Inventors: Dong-Suk SHIN, Hyun-Chul KANG, Dong-Hyun ROH, Pan-Kwi PARK, Geo-Myung SHIN, Nae-In LEE, Chul-Woong LEE, Hoi-Sung CHUNG, Young-Tak KIM
  • Patent number: 9024385
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a trench in an active region and the trench may include a notched portion of the active region. The methods may also include forming an embedded stressor in the trench. The embedded stressor may include a lower semiconductor layer and an upper semiconductor layer, which has a width narrower than a width of the lower semiconductor layer. A side of the upper semiconductor layer may not be aligned with a side of the lower semiconductor layer and an uppermost surface of the upper semiconductor layer may be higher than an uppermost surface of the active region.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: May 5, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Suk Shin, Hyun-Chul Kang, Dong-Hyun Roh, Pan-Kwi Park, Geo-Myung Shin, Nae-In Lee, Chul-Woong Lee, Hoi-Sung Chung, Young-Tak Kim
  • Publication number: 20140369115
    Abstract: Semiconductor device, method for fabricating the same and electronic devices including the semiconductor device are provided. The semiconductor device comprises an interlayer insulating layer formed on a substrate and including a trench, a gate electrode formed in the trench, a first gate spacer formed on a side wall of the gate electrode to have an L shape, a second gate spacer formed on the first gate spacer to have an L shape and having a dielectric constant lower than that of silicon nitride, and a third spacer formed on the second gate spacer.
    Type: Application
    Filed: January 15, 2014
    Publication date: December 18, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kook-Tae KIM, Young-Tak KIM, Ho-Sung SON, Seok-Jun WON, Ji-Hye YI, Chul-Woong LEE
  • Publication number: 20140370699
    Abstract: A method of fabricating a semiconductor device includes forming an interlayer insulating layer on a substrate, the interlayer insulating layer including a first trench and a second trench, forming a first conductive layer along sidewall surfaces and bottom surface of the first trench and forming a second conductive layer along sidewall surfaces and bottom surface of the second trench, forming a mask pattern on the second conductive layer, the mask pattern filling the second trench and being a bottom anti-reflective coating (BARC), and removing the first conductive layer using the mask pattern.
    Type: Application
    Filed: December 31, 2013
    Publication date: December 18, 2014
    Inventors: Ju-Youn Kim, Chul-Woong Lee, Tae-Sun Kim, Sang-Duk Park, Bum-Joon Youn, Tae-Won Ha
  • Publication number: 20140138745
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a trench in an active region and the trench may include a notched portion of the active region. The methods may also include forming an embedded stressor in the trench. The embedded stressor may include a lower semiconductor layer and an upper semiconductor layer, which has a width narrower than a width of the lower semiconductor layer. A side of the upper semiconductor layer may not be aligned with a side of the lower semiconductor layer and an uppermost surface of the upper semiconductor layer may be higher than an uppermost surface of the active region.
    Type: Application
    Filed: September 23, 2013
    Publication date: May 22, 2014
    Inventors: Dong-Suk Shin, Hyun-Chul Kang, Dong-Hyun Roh, Pan-Kwi Park, Geo-Myung Shin, Nae-In Lee, Chul-Woong Lee, Hoi-Sung Chung, Young-Tak Kim
  • Publication number: 20140141589
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a fast etching region comprising phosphorous in an active region and forming a first trench in the active region by recessing the fast etching region. The methods may also include forming a second trench in the active region by enlarging the first trench using a directional etch process and forming a stressor in the second trench. The second trench may include a notched portion of the active region.
    Type: Application
    Filed: September 23, 2013
    Publication date: May 22, 2014
    Inventors: Dong-Suk SHIN, Chul-Woong Lee, Hoi-Sung Chung, Young-Tak Kim, Nae-In Lee
  • Patent number: 7169879
    Abstract: The present invention relates to bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenylphosphine oxide compounds and synthesis thereof, more particularly to novel bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenylphosphine oxide compounds having both a perfluorinated benzene substituent and a phosphine oxide moiety. Compounds of the invention can be useful as a monomer for preparing polyimides having a low dielectric constant and a superior adhesion while maintaining the superior thermal and mechanical properties of polyimides themselves, and their synthesis thereof.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: January 30, 2007
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Tae-Ho Yoon, Chul Woong Lee, Sang Min Kwak
  • Patent number: 6760942
    Abstract: An apparatus and method for determining a washing pattern of a direct drive inverter-type washing machine.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: July 13, 2004
    Assignee: LG Electronics Inc.
    Inventors: Chul Woong Lee, Jae Cheon Lee, Min Kyu Hwang
  • Patent number: 6445879
    Abstract: A method for braking a washing machine in accordance with the present invention comprising the steps of: setting up an initial data of a duty ratio corresponding to a detected speed and a rotating position; discharging a voltage of the capacitor filter during a duty-on cycle according to the duty ratio set up in the preceding step; and charging a voltage to the capacitor filter during duty-off cycle when the duty-on cycle of the preceding step is finished. As described above, the dynamic braking resistor is not used in the method for braking the washing machine according to the present invention so that the size and the production cost are reduced.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: September 3, 2002
    Assignee: LG Electronics Inc.
    Inventors: Sang Chul Youn, Joo Hwan Lee, Chul Woong Lee, In Hwan Ra, Beom Seok Ko
  • Patent number: 6369538
    Abstract: This invention relates to a method for braking a washing machine comprising the steps of: determining whether or not a motor is braking; transmitting a PWM (Pulse Width Modulation) control signal by setting up the initial phase and the duty ratio according to the voltage flows in the system when an operation mode determined by the previous step as a braking mode; comparing a capacity and a variance of the detected voltage with a reference voltage predetermined during the previous step; and controlling a motor driver by re-establishing the control phase and the duty ratio are re-established until the motor is stopped when the comparison result of the previous step indicates that the capacity and the variance of the voltage are lower than the predetermined reference level.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: April 9, 2002
    Assignee: LG Electronics Inc.
    Inventors: Sang Chul Youn, Joo Hwan Lee, Chul Woong Lee, In Hwan Ra
  • Publication number: 20020040259
    Abstract: An apparatus and method for determining a washing pattern of a direct drive inverter-type washing machine.
    Type: Application
    Filed: May 14, 2001
    Publication date: April 4, 2002
    Inventors: Chul Woong Lee, Jae Cheon Lee, Min Kyu Hwang