Patents by Inventor Seng-Keong Lim
Seng-Keong Lim 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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Publication number: 20240175824Abstract: A method includes identifying property data of a substrate processed by a substrate processing system. The method further includes identifying, based on a first subset of the property data, a plurality of regions of the substrate corresponding to a first defect category. The method further includes sub-categorizing, based on a second subset of the property data, the plurality of regions of the substrate corresponding to the first defect category into a plurality of defect sub-categories. The method further includes causing, based on one or more of the plurality of regions corresponding to at least one of the plurality of defect sub-categories, performance of a corrective action associated with the substrate processing system.Type: ApplicationFiled: November 30, 2022Publication date: May 30, 2024Inventor: Seng Keong Lim
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Patent number: 8339449Abstract: A method of forming a device is presented. The method includes providing a substrate containing at least a partially formed device thereon. The device comprises at least one defect site. A pixilated image of the defect site is acquired, and each pixel comprises a grey level value (GLV). Surrounding noises of the defect site is eliminated. A point of the image is identified as the center of the defect. A plurality of iterations to exclude outer edge pixels surrounding the center of the defect image is performed. The defect is categorized as a killer or non-killer defect.Type: GrantFiled: August 7, 2009Date of Patent: December 25, 2012Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Barbara Fong Chin Lim, Keng Heng Lai, Tanya Yang, Victor Seng Keong Lim, Fang Hong Gn, Liang Choo Hsia
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Patent number: 8289508Abstract: A method of forming a device is disclosed. The method includes providing a substrate and processing a layer of the device on the substrate. The layer is inspected with an inspection tool for defects. The inspection tool is programmed with an inspection recipe determined from studying defects programmed into the layer at known locations.Type: GrantFiled: November 19, 2009Date of Patent: October 16, 2012Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Victor Seng Keong Lim, Rachel Yie Fang Wai, Fang Hong Gn, Liang Choo Hsia
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Patent number: 8178368Abstract: A method of forming a device is disclosed. The method includes providing a substrate on which the device is formed. It also includes forming a test cell on the substrate. The test cell includes a defect programmed into the cell to facilitate defect detection.Type: GrantFiled: November 19, 2009Date of Patent: May 15, 2012Assignee: GlobalFoundries Singapore Pte. Ltd.Inventors: Victor Seng Keong Lim, Rachel Yie Fang Wai, Fang Hong Gn, Liang Choo Hsia
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Publication number: 20110116085Abstract: A method of forming a device is disclosed. The method includes providing a substrate and processing a layer of the device on the substrate. The layer is inspected with an inspection tool for defects. The inspection tool is programmed with an inspection recipe determined from studying defects programmed into the layer at known locations.Type: ApplicationFiled: November 19, 2009Publication date: May 19, 2011Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.Inventors: Victor Seng Keong LIM, Rachel Yie Fang WAI, Fang Hong GN, Liang Choo HSIA
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Publication number: 20110114949Abstract: A method of forming a device is disclosed. The method includes providing a substrate on which the device is formed. It also includes forming a test cell on the substrate. The test cell includes a defect programmed into the cell to facilitate defect detection.Type: ApplicationFiled: November 19, 2009Publication date: May 19, 2011Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.Inventors: Victor Seng Keong LIM, Rachel Yie Fang WAI, Fang Hong GN, Liang Choo HSIA
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Patent number: 7939348Abstract: A testing structure, and method of using the testing structure, where the testing structure comprised of at least one of eight test structures that exhibits a discernable defect characteristic upon voltage contrast scanning when it has at least one predetermined structural defect. The eight test structures being: 1) having an Active Area (AA)/P-N junction leakage; 2) having an isolation region to ground; 3) having an AA/P-N junction and isolation region; 4) having a gate dielectric leakage and gate to isolation region to ground; 5) having a gate dielectric leakage through AA/P-N junction to ground leakage; 6) having a gate dielectric to ground and gate/one side isolation region leakage to ground; 7) having an oversized gate dielectric through AA/P-N junction to ground leakage; and 8) having an AA/P-N junction leakage gate dielectric leakage.Type: GrantFiled: August 28, 2007Date of Patent: May 10, 2011Assignee: Chartered Semiconductor Manufacturing, Ltd.Inventors: Victor Seng Keong Lim, Jeffrey Lam
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Publication number: 20110032348Abstract: A method of forming a device is presented. The method includes providing a substrate containing at least a partially formed device thereon. The device comprises at least one defect site. A pixilated image of the defect site is acquired, and each pixel comprises a grey level value (GLV). Surrounding noises of the defect site is eliminated. A point of the image is identified as the center of the defect. A plurality of iterations to exclude outer edge pixels surrounding the center of the defect image is performed. The defect is categorized as a killer or non-killer defect.Type: ApplicationFiled: August 7, 2009Publication date: February 10, 2011Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.Inventors: Barbara Fong Chin LIM, Keng Heng LAI, Tanya YANG, Victor Seng Keong LIM, Fang Hong GN, Liang Choo HSIA
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Publication number: 20090057664Abstract: A testing structure, and method of using the testing structure, where the testing structure comprised of at least one of eight test structures that exhibits a discernable defect characteristic upon voltage contrast scanning when it has at least one predetermined structural defect. The eight test structures being: 1) having an Active Area (AA)/P-N junction leakage; 2) having an isolation region to ground; 3) having an AA/P-N junction and isolation region; 4) having a gate dielectric leakage and gate to isolation region to ground; 5) having a gate dielectric leakage through AA/P-N junction to ground leakage; 6) having a gate dielectric to ground and gate/ one side isolation region leakage to ground; 7) having an oversized gate dielectric through AA/P-N junction to ground leakage; and 8) having an AA/P-N junction leakage gate dielectric leakage.Type: ApplicationFiled: August 28, 2007Publication date: March 5, 2009Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.Inventors: Victor Seng Keong LIM, Jeffrey LAM
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Patent number: 7323406Abstract: A method for making novel elevated bond-pad structures with sidewall spacers is achieved. The elevated bond-pad structures increase the space between the chip and a substrate during flip-chip bonding. The increased spacing results in better under-filling and reduces alpha particle soft errors in the chip. The sidewall spacers restrict the wetting surface for the PbSn solder bumps to the top surface of the bond pads. This results in smaller solder bumps and allows for closer spacings of the array of bonding pads for higher density integrated circuits.Type: GrantFiled: January 27, 2005Date of Patent: January 29, 2008Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Victor Seng-Keong Lim, Fan Zhang, Jeffrey Lam
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Patent number: 7060573Abstract: A new method of forming shallow trench isolations has been described. A silicon semiconductor substrate is provided. A silicon nitride layer is deposited overlying the substrate. A polysilicon layer is deposited overlying the silicon nitride layer. An oxidation mask is deposited overlying the polysilicon layer. The oxidation mask, polysilicon layer, silicon nitride layer, and the silicon semiconductor substrate are patterned to form trenches for planned shallow trench isolations. The silicon semiconductor substrate exposed within the trenches is oxidized to form an oxide liner layer within the trenches wherein the oxidation mask prevents oxidation of the polysilicon layer. Thereafter the oxidation mask is removed. A trench oxide layer is deposited overlying the liner oxide layer and filling the trenches.Type: GrantFiled: January 16, 2001Date of Patent: June 13, 2006Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Victor Seng Keong Lim, Feng Chen, Lap Chan, Wang Ling Goh
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Publication number: 20050098780Abstract: An integrated circuit and e-beam testing method are disclosed. The integrated circuit includes a test structure with a ground grid, a metal pad having a space therein and positioned within the ground grid, and a metal line connected to the ground grid and positioned in the space. Structures for detecting open circuits and short circuits are described.Type: ApplicationFiled: November 6, 2003Publication date: May 12, 2005Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING LTD.Inventors: Seng-Keong Lim, Dennis Tan, Tze Ho Chan
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Patent number: 6815823Abstract: A new method and structure is provided for the creation of interconnect lines. The cross section of the interconnect lines of the invention, taken in a plane that is perpendicular to the longitudinal direction of the interconnect lines, is a triangle as opposed to the conventional square or rectangular cross section of interconnect lines.Type: GrantFiled: October 6, 2003Date of Patent: November 9, 2004Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Young-Way Teh, Victor Seng Keong Lim, Ting Cheong Ang
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Publication number: 20040065956Abstract: A new method and structure is provided for the creation of interconnect lines. The cross section of the interconnect lines of the invention, taken in a plane that is perpendicular to the longitudinal direction of the interconnect lines, is a triangle as opposed to the conventional square or rectangular cross section of interconnect lines.Type: ApplicationFiled: October 6, 2003Publication date: April 8, 2004Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING LTD.Inventors: Young-Way Teh, Victor Seng Keong Lim, Ting Cheong Ang
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Patent number: 6673695Abstract: A new method is provided for the creation of STI regions. STI trenches are created in the surface of a substrate following conventional processing. A layer of STI oxide is deposited and, using an exposure mask that is a reverse mask of the mask that is used to create the STI pattern, impurity implants are performed into the surface of the deposited layer of STI oxide. In view of these processing conditions, the layer of STI oxide overlying the patterned layer of etch stop material is exposed to the impurity implants. This exposure alters the etch characteristics of the deposited layer of STI oxide where this STI oxide overlies the patterned layer of etch stop material. The etch rate of the impurity exposed STI oxide is increased by the impurity implantation, resulting in an etch overlying the patterned etch stop layer that proceeds considerably faster than the etch of the STI oxide that is deposited overlying the created STI trenches.Type: GrantFiled: February 1, 2002Date of Patent: January 6, 2004Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Victor Seng-Keong Lim, Paul Proctor
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Patent number: 6663472Abstract: An improved chemical mechanical polishing apparatus for planarizing semiconductor surface materials. The single rotating polishing platen with an attached pad of conventional CMP processes is replaced with two controlled independently driven, concentric and coplanar, polishing platens. The two co-planar polishing platens allows for separate adjustable options to the CMP polishing process. The options are provided by having pads of different material compositions and hardness. Moreover, an annular space is provided between the platens to introduce the usage of two slurry formulations, one to each pad, on the same CMP tool. The annular space between platens forming a drain path for catching and containing slurry waste.Type: GrantFiled: February 1, 2002Date of Patent: December 16, 2003Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Victor Seng-Keong Lim, Chen Feng, Subramanian Balakumar, Paul Proctor
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Patent number: 6649517Abstract: A new method and structure is provided for the creation of interconnect lines. The cross section of the interconnect lines of the invention, taken in a plane that is perpendicular to the longitudinal direction of the interconnect lines, is a triangle as opposed to the conventional square or rectangular cross section of interconnect lines.Type: GrantFiled: May 18, 2001Date of Patent: November 18, 2003Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Young-Way Teh, Victor Seng Keong Lim, Ting Cheong Ang
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Publication number: 20030203710Abstract: A linear polishing apparatus for polishing a semiconductor substrate including a novel polishing belt arrangement with at least two polishing belts forming a continuous loop. Each belt having an outside polishing surface and an inside smooth surface The belts are spaced alongside each other sharing a common axis at each end. The belts are looped around a pair of rollers making up a driver roller at one end and a driven roller at the other end. A platen member interposes each belt and is placed between the pairs of rollers. The platen provides a polishing plane and supporting surface for the polishing belts. The polishing plane includes a plurality of holes communicating with an elongated plenum chamber underlying the plane. The chamber supplies a compressed gas to impart an upward pressure against the polishing belts. The driver rollers are coupled to separate motors to independently drive and control at least said two of the polishing belts.Type: ApplicationFiled: April 26, 2002Publication date: October 30, 2003Applicant: Chartered Semiconductor Manufacturing Ltd.Inventors: Subramanian Balakumar, Chen Feng, Victor Seng-Keong Lim, Paul Proctor, Mukhopadhyay Madhusudan, Chivukula Subrahmanyam, Yelehanka Ramachandramurthy Pradeep
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Publication number: 20030148712Abstract: An improved chemical mechanical polishing apparatus for planarizing semiconductor surface materials. The single rotating polishing platen with an attached pad of conventional CMP processes is replaced with two controlled independently driven, concentric and coplanar, polishing platens. The two co-planar polishing platens allows for separate adjustable options to the CMP polishing process. The options are provided by having pads of different material compositions and hardness. Moreover, an annular space is provided between the platens to introduce the usage of two slurry formulations, one to each pad, on the same CMP tool. The annular space between platens forming a drain path for catching and containing slurry waste.Type: ApplicationFiled: February 1, 2002Publication date: August 7, 2003Applicant: Chartered Semiconductor Manufacturing Ltd.Inventors: Victor Seng-Keong Lim, Chen Feng, Subramanian Balakumar, Paul Proctor
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Patent number: 6531386Abstract: A method of fabricating at least one metal interconnect including the following steps. A structure having at least one exposed conductive structure is provided. A non-stick material layer is formed over the structure and the at least one exposed conductive structure. The non-stick material layer having an upper surface. The non-stick material layer is patterned to form a patterned non-stick material layer having at least one trench therethrough exposing at least a portion of the at least one conductive structure. A metal interconnect is formed in contact with the exposed portion of the at least one conductive structure within the at least one trench wherein the non-stick properties of the patterned non-stick material layer prevent accumulation of the metal comprising the metal interconnect upon the patterned upper surface of the patterned non-stick material layer. The at least one metal interconnect having an upper surface. The patterned non-stick material layer is removed.Type: GrantFiled: February 8, 2002Date of Patent: March 11, 2003Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Victor Seng-Keong Lim, Simon Chooi, Randall Cha