Patents by Inventor Yung Hee Lee
Yung Hee 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: 10157989Abstract: A method of manufacturing a graphene electronic device may include forming a metal compound layer and a catalyst layer on a substrate, the catalyst layer including a metal element in the metal compound layer, growing a graphene layer on the catalyst layer, and converting the catalyst layer into a portion of the metal compound layer.Type: GrantFiled: May 23, 2012Date of Patent: December 18, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Chang Seung Lee, Sang Wook Kim, Seong Jun Park, David Seo, Young Jun Yun, Yung Hee Lee
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Publication number: 20130171781Abstract: A method of manufacturing a graphene electronic device may include forming a metal compound layer and a catalyst layer on a substrate, the catalyst layer including a metal element in the metal compound layer, growing a graphene layer on the catalyst layer, and converting the catalyst layer into a portion of the metal compound layer.Type: ApplicationFiled: May 23, 2012Publication date: July 4, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Seung Lee, Sang Wook Kim, Seong Jun Park, David Seo, Young Jun Yun, Yung Hee Lee
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Patent number: 7858464Abstract: Methods of manufacturing non-volatile memory devices that can reduce or prevent loss of charges stored in a charge storage layer and/or that can improve charge storage capacity by neutral beam irradiation of an insulating layer are disclosed. The methods include forming a tunneling insulating layer on a substrate, forming a charge storage layer on the tunneling insulating layer, forming a blocking insulating layer on the charge storage layer, irradiating the blocking insulating layer and/or the tunneling insulating layer with a neutral beam, and forming a gate conductive layer on the blocking insulating layer.Type: GrantFiled: December 31, 2008Date of Patent: December 28, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Soo-doo Chae, Chung-woo Kim, Choong-man Lee, Yung-hee Lee, Chan-jin Park, Sung-wook Hwang, Jeong-hee Han, Do-haing Lee, Jin-seok Lee
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Patent number: 7804250Abstract: An apparatus and method to generate plasma which can be applied to semiconductor processing. The apparatus includes a chamber having a plasma generating space defined therein, a lower electrode positioned within the chamber, an upper electrode facing the lower electrode and disposed within the chamber to constitute a first plasma generating source, a second plasma generating source positioned at a higher location than that of a lower surface of the upper electrode and disposed at an outer circumference of the upper electrode, and a power supply to supply power to the first and second plasma generating sources.Type: GrantFiled: March 9, 2007Date of Patent: September 28, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Andrey Ushakov, Yuri Tolmachev, Vladimir Volynets, Won Ceak Pak, Vasily Pashkovskiy, Sung Chang Park, Yung Hee Lee
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Publication number: 20090181531Abstract: Methods of manufacturing non-volatile memory devices that can reduce or prevent loss of charges stored in a charge storage layer and/or that can improve charge storage capacity by neutral beam irradiation of an insulating layer are disclosed. The methods include forming a tunneling insulating layer on a substrate, forming a charge storage layer on the tunneling insulating layer, forming a blocking insulating layer on the charge storage layer, irradiating the blocking insulating layer and/or the tunneling insulating layer with a neutral beam, and forming a gate conductive layer on the blocking insulating layer.Type: ApplicationFiled: December 31, 2008Publication date: July 16, 2009Inventors: Soo-doo Chae, Chung-woo Kim, Choong-man Lee, Yung-hee Lee, Chan-jin Park, Sung-wook Hwang, Jeong-hee Han, Do-haing Lee, Jin-seok Lee
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Publication number: 20080156771Abstract: An etching apparatus using a neutral beam includes an electron emission unit to convert an ion beam, extracted from plasma by a plurality of grids, into a neutral beam by colliding the ion beam with electrons to prevent the ion beam from physically colliding with the electron emission unit, thus preventing the damage to a neutralization unit and generation of foreign substances with a simple structure. Further, the etching apparatus converts the ion beam into the neutral beam at a high neutralizing efficiency without causing directionality and energy losses, and generates a neutral beam having a large area, thus uniformly etching a semiconductor wafer.Type: ApplicationFiled: December 28, 2007Publication date: July 3, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Yun Kwang JEON, Jin Seok Lee, Yung Hee Lee, Gi Tae Kim
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Publication number: 20080096138Abstract: An anti-reflective hard mask layer left on a radiation-blocking layer during fabrication of a reticle provides functionality when the reticle is used in a semiconductor device manufacturing process.Type: ApplicationFiled: November 9, 2007Publication date: April 24, 2008Inventors: Christopher Bencher, Melvin Montgomery, Alexander Buxbaum, Yung-Hee Lee, Jian Ding, Gilad Almogy, Wendy Yeh
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Publication number: 20080061702Abstract: An apparatus and method to generate plasma which can be applied to semiconductor processing. The apparatus includes a chamber having a plasma generating space defined therein, a lower electrode positioned within the chamber, an upper electrode facing the lower electrode and disposed within the chamber to constitute a first plasma generating source, a second plasma generating source positioned at a higher location than that of a lower surface of the upper electrode and disposed at an outer circumference of the upper electrode, and a power supply to supply power to the first and second plasma generating sources.Type: ApplicationFiled: March 9, 2007Publication date: March 13, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Andrey Ushakov, Yuri Tolmachev, Vladimir Volynets, Won Ceak Pak, Vasily Pashkovskiy, Sung Chang Park, Yung Hee Lee
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Publication number: 20080032427Abstract: An ion analysis system to measure ion energy distribution at several points during a process of manufacturing a semiconductor circuit includes at least two ion flux sensors combined in a single system to measure an ion energy distribution function, each of the ion flux sensors having cells including an opening of 50 micrometers or less.Type: ApplicationFiled: May 22, 2007Publication date: February 7, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Yung Hee Lee, Andrey Ushakov, Yuri Tolmachev, Vladimir Volynets, Won Ceak Pak, Vasily Pashkovskiy
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Publication number: 20070296980Abstract: Methods and apparatus for controlling the critical dimensions and monitoring the phase shift angles of photomasks. Critical dimensions measurement data before wafer processing and after wafer processing are collected by an integrated metrology tool to adjust the process recipe, to determine if the critical dimensions are in specification and to determine if additional etching is required. Phase shift angle and uniformity across substrate measurement after wafer processing are collected by an integrated metrology tool to determine if the phase shift angle and its uniformity are in specification. The real time process recipe adjustment and determination if additional etching is requires allow tightening of the process control. The phase shift angle and uniformity monitoring allows in-line screening of phase shift photomasks.Type: ApplicationFiled: July 31, 2007Publication date: December 27, 2007Inventors: ALFRED MAK, Yung-Hee Lee, Cynthia Brooks, Melisa Buie, Turgut Sahin, Jian Ding
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Patent number: 7285788Abstract: An ion beam extractor controls a direction and an intensity of ion beams by adjusting a voltage applied to a grid having slits formed therein, thereby enhancing uniformity of an etching rate of a wafer, leading to an increase of productivity of semiconductor diodes. The ion beam extractor comprises an ion source to produce an ion beam and at least one grid located at a rear end of the ion source in a progressing path of the ion beam produced by the ion source to adjust a direction of the ion beam by controlling a voltage applied to the at least one grid.Type: GrantFiled: August 23, 2005Date of Patent: October 23, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Yung Hee Lee, Yun Kwang Jeon, Jin Seok Lee
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Publication number: 20070184354Abstract: Method and apparatus for etching a metal layer disposed on a substrate, such as a photolithographic reticle, are provided. In one aspect, a method is provided for processing a substrate including positioning a substrate having a metal layer disposed on an optically transparent material in a processing chamber, introducing a processing gas processing gas comprising an oxygen containing gas, a chlorine containing gas, and a chlorine-free halogen containing gas, and optionally, an inert gas, into the processing chamber, generating a plasma of the processing gas in the processing chamber, and etching exposed portions of the metal layer disposed on the substrate.Type: ApplicationFiled: August 25, 2004Publication date: August 9, 2007Inventors: Madhavi Chandrachood, Nicole Sandlin, Yung-Hee Lee, Jian Ding
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Publication number: 20070105381Abstract: Method and apparatus for etching a metal layer disposed on a substrate, such as a photolithographic reticle, are provided. In one aspect, a method is provided for processing a substrate including positioning a substrate having a metal layer disposed on an optically transparent material in a processing chamber, introducing a processing gas processing gas comprising an oxygen containing gas, a chlorine containing gas, and a chlorine-free halogen containing gas, and optionally, an inert gas, into the processing chamber, generating a plasma of the processing gas in the processing chamber, and etching exposed portions of the metal layer disposed on the substrate.Type: ApplicationFiled: December 28, 2006Publication date: May 10, 2007Inventors: Madhavi Chandrachood, Nicole Sandlin, Yung-Hee Lee, Jian Ding
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Publication number: 20070068624Abstract: An apparatus to treat a substrate including a vacuum chamber having a plasma space where plasma is generated and a treating space where a substrate is treated, an extract electrode disposed between the plasma space and the treating space, a power supply to provide power to the extract electrode, and a controller to control the power supply so that a cation beam and a negative charge beam are alternately extracted from a plasma in the plasma space to the treating space.Type: ApplicationFiled: September 15, 2006Publication date: March 29, 2007Inventors: Yun-kwang Jeon, Yung-hee Lee, Jin-seok Lee
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Publication number: 20060152164Abstract: An ion beam extractor controls a direction and an intensity of ion beams by adjusting a voltage applied to a grid having slits formed therein, thereby enhancing uniformity of an etching rate of a wafer, leading to an increase of productivity of semiconductor diodes. The ion beam extractor comprises an ion source to produce an ion beam and at least one grid located at a rear end of the ion source in a progressing path of the ion beam produced by the ion source to adjust a direction of the ion beam by controlling a voltage applied to the at least one grid.Type: ApplicationFiled: August 23, 2005Publication date: July 13, 2006Inventors: Yung Hee Lee, Yun Kwang Jeon, Jin Seok Lee
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Publication number: 20050170655Abstract: We have reduced the critical dimension bias for reticle fabrication. Pattern transfer to the radiation-blocking layer of the reticle substrate essentially depends upon use of a hard mask to which the pattern is transferred from a photoresist. The photoresist pull back which occurs during pattern transfer to the hard mask is minimalized. In addition, a hard mask material having anti-reflective properties which are matched to the reflective characteristics of the radiation-blocking layer enables a reduction in critical dimension size and an improvement in the pattern feature integrity in the hard mask itself. An anti-reflective hard mask layer left on the radiation-blocking layer provides functionality when the reticle is used in a semiconductor device manufacturing process.Type: ApplicationFiled: January 30, 2004Publication date: August 4, 2005Inventors: Christopher Bencher, Melvin Montgomery, Alexander Buxbaum, Yung-Hee Lee, Jian Ding, Gilad Almogy, Wendy Yeh
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Publication number: 20050153564Abstract: Methods and apparatus for controlling the critical dimensions and monitoring the phase shift angles of photomasks. Critical dimensions measurement data before wafer processing and after wafer processing are collected by an integrated metrology tool to adjust the process recipe, to determine if the critical dimensions are in specification and to determine if additional etching is required. Phase shift angle and uniformity across substrate measurement after wafer processing are collected by an integrated metrology tool to determine if the phase shift angle and its uniformity are in specification. The real time process recipe adjustment and determination if additional etching is requires allow tightening of the process control. The phase shift angle and uniformity monitoring allows in-line screening of phase shift photomasks.Type: ApplicationFiled: January 9, 2004Publication date: July 14, 2005Inventors: Alfred Mak, Yung-Hee Lee, Cynthia Brooks, Melisa Buie, Turgut Sahin, Jian Ding