Patents by Inventor Byoung Kwon Ahn
Byoung Kwon Ahn 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: 6893913Abstract: Disclosed is a method for forming a capacitor of a semiconductor device. The forming method comprises the step of forming an interlayer insulating film on a semiconductor substrate formed with a bit line. A contact plug to be in contact with the substrate is formed within the interlayer insulating film. A storage electrode is formed on the interlayer insulating film in such a manner that the storage electrode comes in contact with the contact plug. A dielectric film composed of a single composite film of Ta2O5(X)Y2O3(1?X) is also formed on the storage electrode according to ALD (Atomic Layer Deposition) technology. A diffusion barrier film is deposited on the dielectric film, and a plate electrode is formed on the diffusion barrier film. The present invention can provide a capacitor having sufficient capacitance necessary for a stable device operation by applying the Ta2O5(X)Y2O3(1?X) single composite film to the dielectric film.Type: GrantFiled: June 25, 2003Date of Patent: May 17, 2005Assignee: Hynix Semiconductor Inc.Inventors: Byoung Kwon Ahn, Sung Hoon Park
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Patent number: 6815225Abstract: In the method for forming a capacitor of a nonvolatile semiconductor memory device, a TaON glue layer is formed over a semiconductor substrate, and a lower electrode is formed on the TaON glue layer. A ferroelectric film is then formed on the lower electrode, and an upper electrode is formed on the ferroelectric film.Type: GrantFiled: June 3, 2003Date of Patent: November 9, 2004Assignee: Hynix Semiconductor Inc.Inventors: Nam Kyeong Kim, Ki Seon Park, Dong Su Park, Byoung Kwon Ahn, Seung Kyu Han
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Patent number: 6762090Abstract: A method for fabricating capacitor capable of simplifying formation processes of ruthenium (Ru) layer for storage node electrode formation of capacitor comprises the steps of: forming a first insulating layer having a first opening exposing a predetermined region on a substrate; forming a conductive plug filled within the first opening; forming a second insulating layer having a second opening exposing the conductive plug on the first insulating layer; forming a conductive layer covering the second opening by sequentially performing PECVD and LPCVD processes on the second insulating layer; exposing the second insulating layer by performing etch back on the conductive layer; forming a storage node electrode of the capacitor by removing the second insulating layer; and forming a dielectric layer to cover the storage node electrode; and forming a plate electrode. In an alternative embodiment, a thermal treatment under an N2 gas supply is performed after the step of forming the conductive layer.Type: GrantFiled: February 5, 2002Date of Patent: July 13, 2004Assignee: Hynix Semiconductor Inc.Inventors: Byoung Kwon Ahn, Sung Hoon Park, Joon Ho Kim
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Publication number: 20040115880Abstract: Disclosed is a method for forming a capacitor of a semiconductor device. The forming method comprises the step of forming an interlayer insulating film on a semiconductor substrate formed with a bit line. A contact plug to be in contact with the substrate is formed within the interlayer insulating film. A storage electrode is formed on the interlayer insulating film in such a manner that the storage electrode comes in contact with the contact plug. A dielectric film composed of a single composite film of Ta2O5(X)Y2O3(1-X) is also formed on the storage electrode according to ALD (Atomic Layer Deposition) technology. A diffusion barrier film is deposited on the dielectric film, and a plate electrode is formed on the diffusion barrier film. The present invention can provide a capacitor having sufficient capacitance necessary for a stable device operation by applying the Ta2O5(X)Y2O3(1-X) single composite film to the dielectric film.Type: ApplicationFiled: June 25, 2003Publication date: June 17, 2004Inventors: Byoung Kwon Ahn, Sung Hoon Park
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Patent number: 6680228Abstract: In the capacitor in a semiconductor device, a nitride film is formed over a lower electrode on a semiconductor substrate, and a TaON film is formed over the nitride film. The Al2O3 film is formed over the TaON film, and an upper electrode is formed over the Al2O3 film.Type: GrantFiled: October 11, 2002Date of Patent: January 20, 2004Assignee: Hynix Semiconductor Inc.Inventors: Byoung Kwon Ahn, Dong Soo Park
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Patent number: 6656788Abstract: A capacitor for a semiconductor device is manufactured by forming a lower structure on a semiconductor device, forming a lower electrode on the lower structure of the semiconductor device, forming a dielectric thin film by depositing an amorphous TaON film on the surface of the lower electrode, and supplying a Ta source gas in a mono-pulse manner and continuously supplying a reaction gas even when the Ta source gas is not supplied, and forming an upper electrode on the upper portion of the dielectric thin film.Type: GrantFiled: January 2, 2001Date of Patent: December 2, 2003Assignee: Hyundai Electronic Industries Co., Ltd.Inventors: Dong Su Park, Byoung Kwon Ahn
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Patent number: 6653198Abstract: A capacitor in a semiconductor device and fabricating method therefor are disclosed, in which the capacitor in a semiconductor device comprises: a semiconductor substrate, a first Ru film formed on the semiconductor substrate, a Y2O3 film formed on the first Ru film, a TiON film formed on the Y2O3 film, and a second Ru film formed on the TiON film; and the method for fabricating a capacitor in a semiconductor device comprising the steps of: providing a semiconductor substrate, forming a first Ru film on the semiconductor substrate, forming a Y2O3 film on the first Ru film, forming a TiON film on the Y2O3 film, and forming a second Ru film on the TiON film.Type: GrantFiled: December 27, 2002Date of Patent: November 25, 2003Assignee: Hynix Semiconductor Inc.Inventors: Byoung Kwon Ahn, Joon Ho Kim
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Publication number: 20030205744Abstract: In the method for forming a capacitor of a nonvolatile semiconductor memory device, a TaON glue layer is formed over a semiconductor substrate, and a lower electrode is formed on the TaON glue layer. A ferroelectric film is then formed on the lower electrode, and an upper electrode is formed on the ferroelectric film.Type: ApplicationFiled: June 3, 2003Publication date: November 6, 2003Applicant: Hynix Semiconductor, Inc.Inventors: Nam Kyeong Kim, Ki Seon Park, Dong Su Park, Byoung Kwon Ahn, Seung Kyu Han
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Patent number: 6597029Abstract: In the method for forming a capacitor of a nonvolatile semiconductor memory device, a TaON glue layer is formed over a semiconductor substrate, and a lower electrode is formed on the TaON glue layer. A ferroelectric film is then formed on the lower electrode, and an upper electrode is formed on the ferroelectric film.Type: GrantFiled: June 14, 2001Date of Patent: July 22, 2003Assignee: Hynix Semiconductor Inc.Inventors: Nam Kyeong Kim, Ki Seon Park, Dong Su Park, Byoung Kwon Ahn, Seung Kyu Han
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Publication number: 20030124812Abstract: A capacitor in a semiconductor device and fabricating method therefor are disclosed, in which the capacitor in a semiconductor device comprises: a semiconductor substrate, a first Ru film formed on the semiconductor substrate, a Y2O3 film formed on the first Ru film, a TiON film formed on the Y2O3 film, and a second Ru film formed on the TiON film; and the method for fabricating a capacitor in a semiconductor device comprising the steps of: providing a semiconductor substrate, forming a first Ru film on the semiconductor substrate, forming a Y2O3 film on the first Ru film, forming a TiON film on the Y2O3 film, and forming a second Ru film on the TiON film.Type: ApplicationFiled: December 27, 2002Publication date: July 3, 2003Inventors: Byoung Kwon Ahn, Joon Ho Kim
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Patent number: 6573547Abstract: A method for forming a cell capacitor used for a high-integrated DRAM is disclosed which guarantees interfacial properties of aluminum oxide and excellent leakage current preventive properties by depositing an aluminum oxide layer and a mixed layer of TiON and TiO2 as dielectric layers on a semiconductor substrate having a predetermined lower substructure by an atomic layer deposition (ALD) method and thus forming a double layer structure, and simultaneously providing a high capacitance by using a high dielectric property of a mixed layer of TiON and TiO2.Type: GrantFiled: December 12, 2001Date of Patent: June 3, 2003Assignee: Hynix Semiconductor Inc.Inventors: Byoung-kwon Ahn, Sung-hun Park
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Publication number: 20030049908Abstract: A method for fabricating capacitor capable of simplifying formation processes of ruthenium (Ru) layer for storage node electrode formation of capacitor comprises the steps of: forming a first insulating layer having a first opening exposing a predetermined region on a substrate; forming a conductive plug filled within the first opening; forming a second insulating layer having a second opening exposing the conductive plug on the first insulating layer; forming a conductive layer covering the second opening by sequentially performing PECVD and LPCVD processes on the second insulating layer; exposing the second insulating layer by performing etch back on the conductive layer; forming a storage node electrode of the capacitor by removing the second insulating layer; and forming a dielectric layer to cover the storage node electrode; and forming a plate electrode. In an alternative embodiment, a thermal treatment under an N2 gas supply is performed after the step of forming the conductive layer.Type: ApplicationFiled: February 5, 2002Publication date: March 13, 2003Inventors: Byoung Kwon Ahn, Sung Hoon Park, Joon Ho Kim
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Publication number: 20030039091Abstract: In the capacitor in a semiconductor device, a nitride film is formed over a lower electrode on a semiconductor substrate, and a TaON film is formed over the nitride film. The Al2O3 film is formed over the TaON film, and an upper electrode is formed over the Al2O3 film.Type: ApplicationFiled: October 11, 2002Publication date: February 27, 2003Applicant: Hynix Semiconductor Inc.Inventors: Byoung Kwon Ahn, Dong Soo Park
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Patent number: 6479345Abstract: In the method for manufacturing a capacitor in a semiconductor device, a nitride film is formed over a lower electrode on a semiconductor substrate, and a TaON film is formed over the nitride film. The Al2O3 film is formed over the TaON film, and an upper electrode is formed over the Al2O3 film.Type: GrantFiled: June 14, 2001Date of Patent: November 12, 2002Assignee: Hynix Semiconductor Inc.Inventors: Byoung Kwon Ahn, Dong Soo Park
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Publication number: 20020094624Abstract: A method for forming a cell capacitor used for a high-integrated DRAM is disclosed which guarantees interfacial properties of aluminum oxide and excellent leakage current preventive properties by depositing an aluminum oxide layer and a mixed layer of TiON and TiO2 as dielectric layers on a semiconductor substrate having a predetermined lower substructure by an atomic layer deposition (ALD) method and thus forming a double layer structure, and simultaneously providing a high capacitance by using a high dielectric property of a mixed layer of TiON and TiO2.Type: ApplicationFiled: December 12, 2001Publication date: July 18, 2002Inventors: Byoung-kwon Ahn, Sung-hun Park
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Publication number: 20020000587Abstract: In the method for forming a capacitor of a nonvolatile semiconductor memory device, a TaON glue layer is formed over a semiconductor substrate, and a lower electrode is formed on the TaON glue layer. A ferroelectric film is then formed on the lower electrode, and an upper electrode is formed on the ferroelectric film.Type: ApplicationFiled: June 14, 2001Publication date: January 3, 2002Inventors: Nam Kyeong Kim, Ki Seon Park, Dong Su Park, Byoung Kwon Ahn, Seung Kyu Han
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Publication number: 20020001164Abstract: In the method for manufacturing a capacitor in a semiconductor device, a nitride film is formed over a lower electrode on a semiconductor substrate, and a TaON film is formed over the nitride film. The Al2O3 film is formed over the TaON film, and an upper electrode is formed over the Al2O3 film.Type: ApplicationFiled: June 14, 2001Publication date: January 3, 2002Inventors: Byoung Kwon Ahn, Dong Soo Park
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Publication number: 20010014510Abstract: A capacitor for a semiconductor device is manufactured by forming a lower structure on a semiconductor device, forming a lower electrode on the lower structure of the semiconductor device, forming a dielectric thin film by depositing an amorphous TaON film on the surface of the lower electrode, and supplying a Ta source gas in a mono-pulse manner and continuously supplying a reaction gas even when the Ta source gas is not supplied, and forming an upper electrode on the upper portion of the dielectric thin film.Type: ApplicationFiled: January 2, 2001Publication date: August 16, 2001Inventors: Dong Su Park, Byoung Kwon Ahn