Patents by Inventor Kern-Huat Ang
Kern-Huat Ang 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: 8211755Abstract: A method for preventing arcing during deep via plasma etching is provided. The method comprises forming a first patterned set of parallel conductive lines over a substrate and forming a plurality of semiconductor pillars on the first patterned set of parallel conductive lines and extending therefrom, wherein a pillar comprises a first barrier layer, an antifuse layer, a diode, and a second barrier layer, wherein an electric current flows through the diode upon a breakdown of the antifuse layer. The method further comprises depositing a dielectric between the plurality of semiconductor pillars, and plasma etching a deep via recess through the dielectric and through the underlying layer after the steps of forming a plurality of semiconductor pillars and depositing a dielectric. An embodiment of the invention comprises a memory array device.Type: GrantFiled: May 5, 2010Date of Patent: July 3, 2012Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hsiu-Lan Kuo, Kern-Huat Ang
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Publication number: 20100221874Abstract: A method for preventing arcing during deep via plasma etching is provided. The method comprises forming a first patterned set of parallel conductive lines over a substrate and forming a plurality of semiconductor pillars on the first patterned set of parallel conductive lines and extending therefrom, wherein a pillar comprises a first barrier layer, an antifuse layer, a diode, and a second barrier layer, wherein an electric current flows through the diode upon a breakdown of the antifuse layer. The method further comprises depositing a dielectric between the plurality of semiconductor pillars, and plasma etching a deep via recess through the dielectric and through the underlying layer after the steps of forming a plurality of semiconductor pillars and depositing a dielectric. An embodiment of the invention comprises a memory array device.Type: ApplicationFiled: May 5, 2010Publication date: September 2, 2010Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hsiu-Lan Kuo, Kern-Huat Ang
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Patent number: 7728390Abstract: A method for preventing arcing during deep via plasma etching is provided. The method comprises forming a first patterned set of parallel conductive lines over a substrate and forming a plurality of semiconductor pillars on the first patterned set of parallel conductive lines and extending therefrom, wherein a pillar comprises a first barrier layer, an antifuse layer, a diode, and a second barrier layer, wherein an electric current flows through the diode upon a breakdown of the antifuse layer. The method further comprises depositing a dielectric between the plurality of semiconductor pillars, and plasma etching a deep via recess through the dielectric and through the underlying layer after the steps of forming a plurality of semiconductor pillars and depositing a dielectric. An embodiment of the invention comprises a memory array device.Type: GrantFiled: May 6, 2005Date of Patent: June 1, 2010Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hsiu-Lan Kuo, Kern-Huat Ang
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Patent number: 7704885Abstract: A method for fabricating a semiconductor device is provided. The method of fabricating a semiconductor device provides a semiconductor substrate; forming a first insulating layer, a first conductive layer and a chemical mechanical polishing (CMP) stop layer over the semiconductor substrate in sequence; forming openings in the chemical mechanical polishing (CMP) stop layer and the underlying first conductive layer to expose the first insulating layer, thereby leaving a patterned chemical mechanical polishing (CMP) stop layer and a patterned first conductive layer; forming a second insulating layer on the patterned chemical mechanical polishing (CMP) stop layer, filling in the openings; performing a planarization process to remove a portion of the second insulating layer until the patterned chemical mechanical polishing (CMP) stop layer is exposed, thereby leaving a remaining second insulating layer in the openings; removing the patterned chemical mechanical polishing (CMP) stop layer.Type: GrantFiled: May 24, 2007Date of Patent: April 27, 2010Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Kern-Huat Ang, Po-Jen Wang
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Patent number: 7608926Abstract: A new method to polish down conductive lines in the manufacture of an integrated circuit device is achieved. The method comprises providing a plurality of conductive lines overlying a substrate. A high density plasma (HDP) oxide layer is deposited overlying the substrate and the conductive lines. In the regions between the conductive lines, first planar surfaces of the HDP oxide layer are formed below the top of the conductive lines. The HDP oxide layer is sputtered down overlying the conductive lines such that second planar surfaces of the HDP oxide layer are formed above the conductive lines. A polish stopping layer is deposited overlying the HDP oxide layer. A film layer is deposited overlying the polish stopping layer. The film layer is polished down to the polish stopping layer overlying the second planar top surfaces.Type: GrantFiled: January 6, 2006Date of Patent: October 27, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kern-Huat Ang, Chai-Chen Liu, Chiang-Yung Ku, Jui-Feng Jao, Sheng-Chen Wang
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Patent number: 7473986Abstract: Semiconductor devices and fabrication methods thereof. A first dielectric layer with a first conductor line along a first direction is disposed on a semiconductor substrate, wherein the top surface of the first conductor line is lower than the top surface of the first dielectric layer. A second dielectric layer comprising an opening corresponding to the first diode element is disposed on the first dielectric layer. A semiconductor diode component comprises a first diode element disposed on the first conductor line, wherein the top surface of the first diode element is level with the top surface of the first dielectric layer; and a second diode element and a third diode element are filled in the opening.Type: GrantFiled: November 28, 2006Date of Patent: January 6, 2009Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Kern-Huat Ang, Ling-Sung Wang
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Publication number: 20080293238Abstract: A method for fabricating a semiconductor device is provided. The method of fabricating a semiconductor device provides a semiconductor substrate; forming a first insulating layer, a first conductive layer and a chemical mechanical polishing (CMP) stop layer over the semiconductor substrate in sequence; forming openings in the chemical mechanical polishing (CMP) stop layer and the underlying first conductive layer to expose the first insulating layer, thereby leaving a patterned chemical mechanical polishing (CMP) stop layer and a patterned first conductive layer; forming a second insulating layer on the patterned chemical mechanical polishing (CMP) stop layer, filling in the openings; performing a planarization process to remove a portion of the second insulating layer until the patterned chemical mechanical polishing (CMP) stop layer is exposed, thereby leaving a remaining second insulating layer in the openings; removing the patterned chemical mechanical polishing (CMP) stop layer.Type: ApplicationFiled: May 24, 2007Publication date: November 27, 2008Inventors: Kern-Huat Ang, Po-Jen Wang
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Patent number: 7410838Abstract: A memory cell and a method of fabricating the same. A first conductive layer on a substrate is provided and a first type doped semiconductor layer is then formed on the first conductive layer. The first type doped semiconductor layer and the first conductive layer are patterned into a first line. A dielectric layer is formed on the substrate with an opening exposing the first line. A column comprising a second diode component, a buffer layer, and an anti-fuse layer is formed in the opening. A second line is formed connecting the column on the dielectric layer running generally perpendicularly to the first line.Type: GrantFiled: April 29, 2004Date of Patent: August 12, 2008Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventor: Kern-Huat Ang
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Publication number: 20080073755Abstract: Semiconductor devices and fabrication methods thereof. A first dielectric layer with a first conductor line along a first direction is disposed on a semiconductor substrate, wherein the top surface of the first conductor line is lower than the top surface of the first dielectric layer. A second dielectric layer comprising an opening corresponding to the first diode element is disposed on the first dielectric layer. A semiconductor diode component comprises a first diode element disposed on the first conductor line, wherein the top surface of the first diode element is level with the top surface of the first dielectric layer; and a second diode element and a third diode element are filled in the opening.Type: ApplicationFiled: November 28, 2006Publication date: March 27, 2008Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Kern-Huat Ang, Ling-Sung Wang
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Publication number: 20060249755Abstract: A method for preventing arcing during deep via plasma etching is provided. The method comprises forming a first patterned set of parallel conductive lines over a substrate and forming a plurality of semiconductor pillars on the first patterned set of parallel conductive lines and extending therefrom, wherein a pillar comprises a first barrier layer, an antifuse layer, a diode, and a second barrier layer, wherein an electric current flows through the diode upon a breakdown of the antifuse layer. The method further comprises depositing a dielectric between the plurality of semiconductor pillars, and plasma etching a deep via recess through the dielectric and through the underlying layer after the steps of forming a plurality of semiconductor pillars and depositing a dielectric. An embodiment of the invention comprises a memory array device.Type: ApplicationFiled: May 6, 2005Publication date: November 9, 2006Inventors: Hsiu-Lan Kuo, Kern-Huat Ang
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Patent number: 7012021Abstract: A new method to polish down conductive lines in the manufacture of an integrated circuit device is achieved. The method comprises providing a plurality of conductive lines overlying a substrate. A high density plasma (HDP) oxide layer is deposited overlying the substrate and the conductive lines. In the regions between the conductive lines, first planar surfaces of the HDP oxide layer are formed below the top of the conductive lines. The HDP oxide layer is sputtered down overlying the conductive lines such that second planar surfaces of the HDP oxide layer are formed above the conductive lines. A polish stopping layer is deposited overlying the HDP oxide layer. A film layer is deposited overlying the polish stopping layer. The film layer is polished down to the polish stopping layer overlying the second planar top surfaces.Type: GrantFiled: January 29, 2004Date of Patent: March 14, 2006Inventors: Kern-Huat Ang, Chai-Chen Liu, Chiang-Yung Ku, Jui-Feng Jao, Sheng-Chen Wang
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Publication number: 20050242386Abstract: A memory cell and a method of fabricating the same. A first conductive layer on a substrate is provided and a first type doped semiconductor layer is then formed on the first conductive layer. The first type doped semiconductor layer and the first conductive layer are patterned into a first line. A dielectric layer is formed on the substrate with an opening exposing the first line. A column comprising a second diode component, a buffer layer, and an anti-fuse layer is formed in the opening. A second line is formed connecting the column on the dielectric layer running generally perpendicularly to the first line.Type: ApplicationFiled: April 29, 2004Publication date: November 3, 2005Inventor: Kern-Huat Ang
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Publication number: 20050170563Abstract: A new method to polish down conductive lines in the manufacture of an integrated circuit device is achieved. The method comprises providing a plurality of conductive lines overlying a substrate. A high density plasma (HDP) oxide layer is deposited overlying the substrate and the conductive lines. In the regions between the conductive lines, first planar surfaces of the HDP oxide layer are formed below the top of the conductive lines. The HDP oxide layer is sputtered down overlying the conductive lines such that second planar surfaces of the HDP oxide layer are formed above the conductive lines. A polish stopping layer is deposited overlying the HDP oxide layer. A film layer is deposited overlying the polish stopping layer. The film layer is polished down to the polish stopping layer overlying the second planar top surfaces.Type: ApplicationFiled: January 29, 2004Publication date: August 4, 2005Inventors: Kern-Huat Ang, Chai-Chen Liu, Chiang-Yung Ku, Jui-Feng Jao, Sheng-Chen Wang
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Patent number: 6518148Abstract: A method for manufacturing shallow trench isolation (STI) structures in semiconductor device manufacturing including a method for minimizing divot formation in a shallow trench isolation process is disclosed. A trench liner oxide is deposited and then removed and recessions adjacent a trench are formed to be replaced by an etching resistant layer which covers the recessions to form a protective collar over the trench opening corners.Type: GrantFiled: September 6, 2001Date of Patent: February 11, 2003Assignee: Taiwan Semiconductor Manufacturing Company, LtdInventors: Chien-Li Cheng, Kern-Huat Ang, Chun-Hung Peng