Patents by Inventor Ling-Wu Yang
Ling-Wu Yang 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: 8791022Abstract: The method of forming a wordline is provided in the present invention. The proposed method includes steps of: (a) etching a metal-silicide layer and a POLY layer via a hard mask, wherein the metal-silicide layer is disposed on the POLY layer; (b) forming a POLY recess in the POLY layer; and (c) forming a liner film covering the metal-silicide layer.Type: GrantFiled: November 23, 2010Date of Patent: July 29, 2014Assignee: Macronix International Co. Ltd.Inventors: Jeng-Hwa Liao, Jung-Yu Shieh, Ling-Wu Yang
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Patent number: 8669184Abstract: Described is a method for improving the flatness of a layer deposited on a doped polycrystalline layer, which includes reducing the grain size of the polycrystalline layer to decrease the out-diffusion amount of the dopant from the polycrystalline layer, and/or reducing the amount of the out-diffusing dopant on the surface of the polycrystalline layer.Type: GrantFiled: January 24, 2011Date of Patent: March 11, 2014Assignee: MACRONIX International Co., Ltd.Inventors: Tuung Luoh, Ling-Wu Yang, Ta-Hone Yang, Kuang-Chao Chen
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Patent number: 8581327Abstract: A memory having isolated dual memory cells is provided. A first isolation wall and a second isolation wall are separately disposed between a source and a drain on a substrate. An isolation bottom layer and a polysilicon layer are orderly disposed on the substrate between the first and the second isolation walls. A first charge storage structure and a first gate are orderly disposed on the substrate between the first isolation wall and the source. A second charge storage structure and a second gate are orderly disposed on the substrate between the second isolation wall and the drain. A word line disposed on the polysilicon layer, the first gate, the second gate, the first isolation wall and the second isolation wall is electrically connected to the first gate, the second gate and the polysilicon layer.Type: GrantFiled: December 21, 2010Date of Patent: November 12, 2013Assignee: Macronix International Co., Ltd.Inventors: Erh-Kun Lai, Yen-Hao Shih, Ling-Wu Yang, Chun-Min Cheng
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Patent number: 8383515Abstract: The method of forming a wordline is provided in the present invention. The proposed method includes steps of: (a) providing a plurality of SASTIs with a plurality of first POLY cells deposited thereon; and (b) depositing a first fill-in material having a relatively high etching rate oxide-like material in the plurality of SASTIs and on each side wall of the plurality of first POLY cells.Type: GrantFiled: November 16, 2010Date of Patent: February 26, 2013Assignee: Macronix International Co., Ltd.Inventors: Tuung Luoh, Ling-Wu Yang, Tahone Yang, Kuang-Chao Chen
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Patent number: 8329480Abstract: A method of detecting manufacturing defects at a memory array may include disposing an active area of a first width in communication with a first conductive member of the memory array to define a grounded conductive member, disposing an isolation structure of a second width in communication with a second conductive member of the memory array to define a floating conductive member, and providing an alternating arrangement of floating and grounded conductive members including arranging a plurality of the grounded and floating conductive members adjacent to each other to define a sequence of alternating floating and grounded conductive members. A corresponding test device is also provided.Type: GrantFiled: September 28, 2010Date of Patent: December 11, 2012Assignee: Macronix International Co., Ltd.Inventors: Che-Lun Hung, Hsiang-Chou Liao, Tuung Luoh, Ling-Wu Yang
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Patent number: 8288280Abstract: A conductor removal process is described, which is applied to a substrate that has thereon a plurality of patterns and a blanket conductor layer covering the patterns. An upper portion of the blanket conductor layer entirely over the patterns is oxidized to form a dielectric layer. A CMP step is performed to remove the dielectric layer and a portion of the remaining conductor layer in turn and thereby expose the patterns.Type: GrantFiled: July 19, 2007Date of Patent: October 16, 2012Assignee: MACRONIX International Co., Ltd.Inventors: Yung-Tai Hung, Chin-Tsan Yeh, Chin-Ta Su, Ling-Wu Yang, Tung-Han Chuang
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Publication number: 20120190198Abstract: Described is a method for improving the flatness of a layer deposited on a doped polycrystalline layer, which includes reducing the grain size of the polycrystalline layer to decrease the out-diffusion amount of the dopant from the polycrystalline layer, and/or reducing the amount of the out-diffusing dopant on the surface of the polycrystalline layer.Type: ApplicationFiled: January 24, 2011Publication date: July 26, 2012Applicant: MACRONIX INTERNATIONAL CO., LTD.Inventors: Tuung Luoh, Ling-Wu Yang, Ta-Hone Yang, Kuang-Chao Chen
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Patent number: 8211806Abstract: A method of manufacturing an integrated circuit with a small pitch comprises providing a second material layer patterned to form at least two features with an opening between the features. The second material layer is formed over a first material layer and the first material layer is over a substrate. The method also comprises providing a first oxide layer to form a first sidewall surrounding each of the features, and providing a second oxide layer over the first sidewalls and the first material layer. A second sidewall is formed surrounding each of the features. The method further comprises providing a conductive layer over the second oxide layer and removing the conductive layer, the second sidewalls and the first material underneath the second sidewalls.Type: GrantFiled: August 29, 2007Date of Patent: July 3, 2012Assignee: MACRONIX International Co., Ltd.Inventors: Chia-Wei Wu, Ling-Wu Yang
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Publication number: 20120129350Abstract: The method of forming a wordline is provided in the present invention. The proposed method includes steps of: (a) etching a metal-silicide layer and a POLY layer via a hard mask, wherein the metal-silicide layer is disposed on the POLY layer; (b) forming a POLY recess in the POLY layer; and (c) forming a liner film covering the metal-silicide layer.Type: ApplicationFiled: November 23, 2010Publication date: May 24, 2012Applicant: MACRONIX INTERNATIONAL CO., LTD.Inventors: Jeng-Hwa Liao, Jung-Yu Shieh, Ling-Wu Yang
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Publication number: 20120122296Abstract: The method of forming a wordline is provided in the present invention. The proposed method includes steps of: (a) providing a plurality of SASTIs with a plurality of first POLY cells deposited thereon; and (b) depositing a first fill-in material having a relatively high etching rate oxide-like material in the plurality of SASTIs and on each side wall of the plurality of first POLY cells.Type: ApplicationFiled: November 16, 2010Publication date: May 17, 2012Applicant: MACRONIX INTERNATIONAL CO., LTD.Inventors: Tuung LUOH, Ling-Wu YANG, Tahone YANG, Kuang-Chao CHEN
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Publication number: 20120074401Abstract: A method of detecting manufacturing defects at a memory array may include disposing an active area of a first width in communication with a first conductive member of the memory array to define a grounded conductive member, disposing an isolation structure of a second width in communication with a second conductive member of the memory array to define a floating conductive member, and providing an alternating arrangement of floating and grounded conductive members including arranging a plurality of the grounded and floating conductive members adjacent to each other to define a sequence of alternating floating and grounded conductive members. A corresponding test device is also provided.Type: ApplicationFiled: September 28, 2010Publication date: March 29, 2012Inventors: Che-Lun Hung, Hsiang-Chou Liao, Tuung Luoh, Ling-Wu Yang
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Patent number: 8106483Abstract: An integrated circuit with improved intrinsic gettering ability is described, having a bulk micro-defect (BMD) density of 3.85×105-3.38×109/cm3 through first and second annealing steps. The first annealing step is performed at a first temperature in an atmosphere containing at least one of oxygen gas and nitrogen gas. The second annealing step is performed at a second temperature higher than the first temperature in the atmosphere.Type: GrantFiled: March 29, 2011Date of Patent: January 31, 2012Assignee: MACRONIX International Co., Ltd.Inventors: Chun-Ling Chiang, Jung-Yu Hsieh, Ling-Wu Yang
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Publication number: 20110175203Abstract: An integrated circuit with improved intrinsic gettering ability is described, having a bulk micro-defect (BMD) density of 3.85×105-3.38×109/cm3 through first and second annealing steps. The first annealing step is performed at a first temperature in an atmosphere containing at least one of oxygen gas and nitrogen gas. The second annealing step is performed at a second temperature higher than the first temperature in the atmosphere.Type: ApplicationFiled: March 29, 2011Publication date: July 21, 2011Applicant: MACRONIX International Co. Ltd.Inventors: CHUN-LING CHIANG, JUNG-YU HSIEH, LING-WU YANG
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Patent number: 7939432Abstract: A method of improving the intrinsic gettering ability of a wafer is described. A first annealing step is performed to the wafer at a first temperature in an atmosphere containing at least one of oxygen gas and nitrogen gas. A second annealing step is performed to the wafer, at a second temperature higher than the first temperature, in the atmosphere.Type: GrantFiled: December 15, 2008Date of Patent: May 10, 2011Assignee: MACRONIX International Co., Ltd.Inventors: Chun-Ling Chiang, Jung-Yu Hsieh, Ling-Wu Yang
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Publication number: 20110089480Abstract: A memory having isolated dual memory cells is provided. A first isolation wall and a second isolation wall are separately disposed between a source and a drain on a substrate. An isolation bottom layer and a polysilicon layer are orderly disposed on the substrate between the first and the second isolation walls. A first charge storage structure and a first gate are orderly disposed on the substrate between the first isolation wall and the source. A second charge storage structure and a second gate are orderly disposed on the substrate between the second isolation wall and the drain. A word line disposed on the polysilicon layer, the first gate, the second gate, the first isolation wall and the second isolation wall is electrically connected to the first gate, the second gate and the polysilicon layer.Type: ApplicationFiled: December 21, 2010Publication date: April 21, 2011Applicant: Macronix International Co., Ltd.Inventors: Erh-Kun Lai, Yen-Hao Shih, Ling-Wu Yang, Chun-Min Cheng
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Patent number: 7879706Abstract: A memory having isolated dual memory cells is provided. A first isolation wall and a second isolation wall are separately disposed between a source and a drain on a substrate. An isolation bottom layer and a polysilicon layer are orderly disposed on the substrate between the first and the second isolation walls. A first charge storage structure and a first gate are orderly disposed on the substrate between the first isolation wall and the source. A second charge storage structure and a second gate are orderly disposed on the substrate between the second isolation wall and the drain. A word line disposed on the polysilicon layer, the first gate, the second gate, the first isolation wall and the second isolation wall is electrically connected to the first gate, the second gate and the polysilicon layer.Type: GrantFiled: October 31, 2007Date of Patent: February 1, 2011Assignee: Macronix International Co., Ltd.Inventors: Erh-Kun Lai, Yen-Hao Shih, Ling-Wu Yang, Chun-Min Cheng
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Publication number: 20100210085Abstract: A method for fabricating a non-volatile memory of the invention includes providing a substrate, and a tunnel layer is formed on the substrate. A charge-trapping layer is formed on the tunnel layer using silane (SiH4), nitrous oxide (N2O), and ammonia (NH3) as a reactant gas. The charge-trapping layer has a refractive index greater than or equal to 1.49 but less than 1.96 at a wavelength of 633 nm. A top layer is formed on the charge-trapping layer. A gate is formed on the top layer.Type: ApplicationFiled: April 26, 2010Publication date: August 19, 2010Applicant: MACRONIX INTERNATIONAL CO., LTD.Inventors: Jeng-Hwa Liao, Jung-Yu Hsieh, Ling-Wu Yang
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Patent number: 7776713Abstract: An etching solution, a method of surface modification of a semiconductor substrate and a method of forming shallow trench isolation are provided. The etching solution is used for surface modifying the semiconductor substrate. The etching solution includes an oxidant and an oxide remover. The semiconductor substrate is oxidized to a semiconductor oxide by the oxidant, and the oxide remover subtracts the semiconductor oxide.Type: GrantFiled: May 30, 2007Date of Patent: August 17, 2010Assignee: Macronix International Co., Ltd.Inventors: Chia-Wei Wu, Jung-Yu Shieh, Ling-Wu Yang
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Publication number: 20100178758Abstract: The method for fabricating the dielectric layer of the present invention is described as follows. A substrate is provided in a chamber, wherein the chamber is a single-wafer LPCVD chamber. A silicon source gas, an oxidation source gas and a nitridation source gas are then introduced into the chamber, wherein a volumetric flow rate ratio of the oxidation source gas to a total amount of the oxidation source gas and the nitridation source gas is varied within a range of 0.0245 to 0.375. Afterwards, the dielectric layer with a dielectric constant within a range of 4.8 to 7.6 is formed on the substrate.Type: ApplicationFiled: January 15, 2009Publication date: July 15, 2010Applicant: MACRONIX INTERNATIONAL CO., LTD.Inventors: Jeng-Hwa Liao, Jung-Yu Hsieh, Ling-Wu Yang
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Publication number: 20100151657Abstract: A method of improving the intrinsic gettering ability of a wafer is described. A first annealing step is performed to the wafer at a first temperature in an atmosphere containing at least one of oxygen gas and nitrogen gas. A second annealing step is performed to the wafer, at a second temperature higher than the first temperature, in the atmosphere.Type: ApplicationFiled: December 15, 2008Publication date: June 17, 2010Applicant: MACRONIX INTERNATIONAL CO., LTD.Inventors: Chun-Ling Chiang, Jung-Yu Hsieh, Ling-Wu Yang