Patents by Inventor Weon-Ho Lee
Weon-Ho 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).
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Patent number: 11949012Abstract: A semiconductor device including: a first transistor which include a first gate stack on a substrate; and a second transistor which includes a second gate stack on the substrate, wherein the first gate stack includes a first ferroelectric material layer disposed on the substrate, a first work function layer disposed on the first ferroelectric material layer and a first upper gate electrode disposed on the first work function layer, wherein the second gate stack includes a second ferroelectric material layer disposed on the substrate, a second work function layer disposed on the second ferroelectric material layer and a second upper gate electrode disposed on the second work function layer, wherein the first work function layer includes the same material as the second work function layer, and wherein an effective work function of the first gate stack is different from an effective work function of the second gate stack.Type: GrantFiled: December 8, 2020Date of Patent: April 2, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Ho Park, Wan Don Kim, Weon Hong Kim, Hyeon Jun Baek, Byoung Hoon Lee, Jeong Hyuk Yim, Sang Jin Hyun
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Patent number: 9219477Abstract: The present disclosure relates to a non-contact switch. More particularly, the non-contact switch includes a button which is disposed at a predetermined position of a housing and operated by an external pressure while being formed, at one end portion thereof, with a magnetic substance; a magnetic field sensor device which is accommodated in the housing to face the magnetic substance and generates an induced voltage depending on an interval between the magnetic field sensor device and the magnetic substance; and a semiconductor device which is driven by the induced voltage generated at the magnetic field sensor device to switch power supplied from a separate battery to a separate load.Type: GrantFiled: December 10, 2012Date of Patent: December 22, 2015Assignee: DAESUNG ELECTRIC CO., LTD.Inventors: Myung O Kim, Weon Ho Lee, Kyu Sung Cho
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Publication number: 20140139045Abstract: The present disclosure relates to a non-contact switch. More particularly, the non-contact switch includes a button which is disposed at a predetermined position of a housing and operated by an external pressure while being formed, at one end portion thereof, with a magnetic substance; a magnetic field sensor device which is accommodated in the housing to face the magnetic substance and generates an induced voltage depending on an interval between the magnetic field sensor device and the magnetic substance; and a semiconductor device which is driven by the induced voltage generated at the magnetic field sensor device to switch power supplied from a separate battery to a separate load.Type: ApplicationFiled: December 10, 2012Publication date: May 22, 2014Applicant: DAESUNG ELECTRIC CO., LTD.Inventors: Myung O Kim, Weon Ho Lee, Kyu Sung Cho
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Patent number: 8618846Abstract: Disclosed herein is a solidstate switch driving circuit for a vehicle. The solidstate switch driving circuit includes an oscillation circuit, a constant voltage circuit, a first Field Effect Transistor (FET), a second FET, a third FET configured, a first time constant circuit, a first time constant circuit, a reverse voltage protection diode, a solidstate power switch, and a second time constant circuit. The first time constant circuit is connected to the drain of the second FET and the drain of the third FET. The reverse voltage protection diode has an N pole and a P pole. The solidstate power switch selectively turns on and off power applied to the load. The second time constant circuit has one side connected to the first time constant circuit and the reverse voltage protection diode, and another side connected to a gate of the solidstate power switch.Type: GrantFiled: September 13, 2011Date of Patent: December 31, 2013Assignee: Daesung Electric Co., Ltd.Inventor: Weon ho Lee
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Publication number: 20130063187Abstract: Disclosed herein is a solidstate switch driving circuit for a vehicle. The solidstate switch driving circuit includes an oscillation circuit, a constant voltage circuit, a first Field Effect Transistor (FET), a second FET, a third FET configured, a first time constant circuit, a first time constant circuit, a reverse voltage protection diode, a solidstate power switch, and a second time constant circuit. The first time constant circuit is connected to the drain of the second FET and the drain of the third FET. The reverse voltage protection diode has an N pole and a P pole. The solidstate power switch selectively turns on and off power applied to the load. The second time constant circuit has one side connected to the first time constant circuit and the reverse voltage protection diode, and another side connected to a gate of the solidstate power switch.Type: ApplicationFiled: September 13, 2011Publication date: March 14, 2013Applicant: DAESUNG ELECTRIC CO., LTD.Inventor: Weon ho LEE
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Patent number: 6858995Abstract: Disclosed is an energy-saving dimming apparatus connected to a power source and a load, and adapted to control a luminance of the load. The dimming apparatus includes a first switching unit connected to a power supply line, a second switching unit connected between the first switching unit and a ground line, a microprocessor for generating a square-wave pulse having a duty cycle according to a luminance control command, a switch driver for generating switching control signals respectively adapted to perform alternate ON/OFF controls for the switching units in accordance with the square-wave pulse inputted thereto, and a low-pass filter for removing ripple components contained in a voltage applied to the load via the first switching unit.Type: GrantFiled: March 18, 2003Date of Patent: February 22, 2005Inventors: Weon-Ho Lee, Kyoung-Hwa Yoon, Chong-Yeun Park, Dong-Youl Jung
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Publication number: 20030173906Abstract: Disclosed is an energy-saving dimming apparatus connected to a power source and a load, and adapted to control a luminance of the load. The dimming apparatus includes a first switching unit connected to a power supply line, a second switching unit connected between the first switching unit and a ground line, a microprocessor for generating a square-wave pulse having a duty cycle according to a luminance control command, a switch driver for generating switching control signals respectively adapted to perform alternate ON/OFF controls for the switching units in accordance with the square-wave pulse inputted thereto, and a low-pass filter for removing ripple components contained in a voltage applied to the load via the first switching unit.Type: ApplicationFiled: March 18, 2003Publication date: September 18, 2003Inventors: Weon-Ho Lee, Kyoung-Hwa Yoon, Chong-Yeun Park, Dong-Youl Jung