Patents by Inventor An-Chun Tu
An-Chun Tu 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: 9377503Abstract: A method performed using a resistive device, where the resistive device includes a substrate with an active region separated from a gate electrode by a dielectric and electrical contacts along a longest dimension of the gate electrode, the method comprising, performing one or more processes to form the resistive device, measuring a resistance between the electrical contacts, and correlating the measured resistance with a variation in one or more of the processes.Type: GrantFiled: April 7, 2014Date of Patent: June 28, 2016Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: An-Chun Tu, Chen-Ming Huang, Chih-Jen Wu, Chin-Hsiang Lin
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Patent number: 9330901Abstract: A method of forming a nitrogen-containing oxide film is disclosed. The method comprises (a) exposing a substrate to a first gas pulse having one of an oxygen-containing gas and a metal-containing gas; (b) exposing the substrate to a second gas pulse having the other of the oxygen-containing gas and the metal-containing gas to form an oxide film over the substrate; and (c) exposing the oxide film to a third gas pulse having a nitrogen-containing plasma to form a nitrogen-containing oxide film, wherein the nitrogen-containing oxide film has a nitrogen concentration between about 0.1 and about 3 atomic percent (at %).Type: GrantFiled: March 1, 2013Date of Patent: May 3, 2016Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: An-Chun Tu, Chih-Hong Hwang, Yi Hsien Lu, Chun-Heng Chen, Chen-Chien Li, Chih-Jen Wu, Kuei-Shu Chang-Liao, Chen-Ming Huang
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Patent number: 9257326Abstract: A method of making a backside illuminated image sensor includes forming a first isolation structure in a pixel region of a substrate, where a bottom of the first isolation structure is exposed at a back surface of the substrate. The method further includes forming a second isolation structure in a peripheral region of the substrate, where the second isolation structure has a depth less than a depth of the first isolation structure. Additionally, the method includes forming an implant region adjacent to at least a portion of sidewalls of the first isolation structure, where the portion of the sidewalls is located closer to the back surface than a front surface of the substrate, and where the second isolation structure is free of the implant region.Type: GrantFiled: December 31, 2014Date of Patent: February 9, 2016Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Kuan-Chieh Huang, Chih-Jen Wu, Chen-Ming Huang, Dun-Nian Yaung, An-Chun Tu
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Patent number: 9250286Abstract: A method performed using a resistive device, where the resistive device includes a substrate with an active region separated from a gate electrode by a dielectric and electrical contacts along a longest dimension of the gate electrode, the method comprising, performing one or more processes to form the resistive device, measuring a resistance between the electrical contacts, and correlating the measured resistance with a variation in one or more of the processes.Type: GrantFiled: April 7, 2014Date of Patent: February 2, 2016Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: An-Chun Tu, Chen-Ming Huang, Chih-Jen Wu, Chin-Hsiang Lin
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Publication number: 20150111334Abstract: A method of making a backside illuminated image sensor includes forming a first isolation structure in a pixel region of a substrate, where a bottom of the first isolation structure is exposed at a back surface of the substrate. The method further includes forming a second isolation structure in a peripheral region of the substrate, where the second isolation structure has a depth less than a depth of the first isolation structure. Additionally, the method includes forming an implant region adjacent to at least a portion of sidewalls of the first isolation structure, where the portion of the sidewalls is located closer to the back surface than a front surface of the substrate, and where the second isolation structure is free of the implant region.Type: ApplicationFiled: December 31, 2014Publication date: April 23, 2015Inventors: Kuan-Chieh HUANG, Chih-Jen WU, Chen-Ming HUANG, Dun-Nian YAUNG, An-Chun TU
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Patent number: 8946847Abstract: A backside illuminated image sensor includes a substrate with a substrate depth, where the substrate includes a pixel region and a peripheral region. The substrate further includes a front surface and a back surface. The backside illuminated image sensor includes a first isolation structure formed in the pixel region of the substrate, where a bottom of the first isolation structure is exposed at the back surface of the substrate. The backside illuminated image sensor includes a second isolation structure formed in the peripheral region of the substrate, where the second isolation structure has a depth less than a depth of the first isolation structure. The backside illuminated image sensor includes an implant region adjacent to at least a portion of sidewalls of each isolation structure in the pixel region.Type: GrantFiled: February 4, 2014Date of Patent: February 3, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kuan-Chieh Huang, Chih-Jen Wu, Chen-Ming Huang, Dun-Nian Yaung, An-Chun Tu
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Publication number: 20140203282Abstract: A method performed using a resistive device, where the resistive device includes a substrate with an active region separated from a gate electrode by a dielectric and electrical contacts along a longest dimension of the gate electrode, the method comprising, performing one or more processes to form the resistive device, measuring a resistance between the electrical contacts, and correlating the measured resistance with a variation in one or more of the processes.Type: ApplicationFiled: April 7, 2014Publication date: July 24, 2014Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: An-Chun Tu, Chen-Ming Huang, Chih-Jen Wu, Chin-Hsiang Lin
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Publication number: 20140206113Abstract: A method performed using a resistive device, where the resistive device includes a substrate with an active region separated from a gate electrode by a dielectric and electrical contacts along a longest dimension of the gate electrode, the method comprising, performing one or more processes to form the resistive device, measuring a resistance between the electrical contacts, and correlating the measured resistance with a variation in one or more of the processes.Type: ApplicationFiled: April 7, 2014Publication date: July 24, 2014Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: An-Chun Tu, Chen-Ming Huang, Chih-Jen Wu, Chin-Hsiang Lin
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Publication number: 20140151835Abstract: A backside illuminated image sensor includes a substrate with a substrate depth, where the substrate includes a pixel region and a peripheral region. The substrate further includes a front surface and a back surface. The backside illuminated image sensor includes a first isolation structure formed in the pixel region of the substrate, where a bottom of the first isolation structure is exposed at the back surface of the substrate. The backside illuminated image sensor includes a second isolation structure formed in the peripheral region of the substrate, where the second isolation structure has a depth less than a depth of the first isolation structure. The backside illuminated image sensor includes an implant region adjacent to at least a portion of sidewalls of each isolation structure in the pixel region.Type: ApplicationFiled: February 4, 2014Publication date: June 5, 2014Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Kuan-Chieh HUANG, Chih-Jen WU, Chen-Ming HUANG, Dun-Nian YAUNG, An-Chun TU
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Patent number: 8704224Abstract: A resistive test structure that includes a semiconductor substrate with an active region, a gate stack formed over the active region, a first electrical contact in communication with the active region on opposing sides of the gate stack, the first electrical contact providing an electrical short across a first dimension of the gate stack, and a second electrical contact in communication with the active region on the opposing sides of the gate stack, the second electrical contact providing an electrical short across the first dimension of the gate stack, the first and second electrical contacts spaced along a second dimension of the gate stack perpendicular to the first dimension.Type: GrantFiled: September 23, 2011Date of Patent: April 22, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: An-Chun Tu, Chen-Ming Huang, Chih-Jen Wu, Chin-Hsiang Lin
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Patent number: 8674469Abstract: A backside illuminated image sensor includes an isolation structure passing through a substrate, a sensor element formed overlying the front surface of the substrate, and a color filter formed overlying the back surface of the substrate.Type: GrantFiled: April 23, 2010Date of Patent: March 18, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kuan-Chieh Huang, Chih-Jen Wu, Chen-Ming Huang, Dun-Nian Yaung, An-Chun Tu
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Patent number: 8614131Abstract: A method for fabricating an integrated circuit providing an enlarged contact process window while reducing device size is disclosed. The method comprises providing a substrate including a first region and a second region, the first and second regions having one or more gate structures including a dummy gate layer; removing the dummy gate layer from at least one of the one or more gate structures in the first and second regions to form one or more trenches in the first and second regions; filling the one or more trenches in the first and second regions with a conductive layer; selectively etching back the conductive layer of the one or more gate structures in the second region of the substrate; forming a protective layer over the etched back conductive layer of the one or more gate structures in the second region; and forming one or more contact openings in the first and second regions.Type: GrantFiled: February 3, 2009Date of Patent: December 24, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: An-Chun Tu, Chen-Ming Huang
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Patent number: 8586404Abstract: This description relates to a method for reducing CMOS Image Sensor (CIS) contact resistance, the CIS having a pixel array and a periphery. The method includes performing Physical Vapor Deposition (PVD) at a pixel contact hole area, annealing for silicide formation at the pixel contact hole area and performing contact filling. This description also relates to a method for reducing CMOS Image Sensor (CIS) contact resistance, the CIS having a pixel array and a periphery. The method includes implanting N+ or P+ for pixel contact plugs at a pixel contact hole area, performing Physical Vapor Deposition (PVD) at pixel contact hole area, annealing for silicide formation at the pixel contact hole area, performing contact filling and depositing a first metal film layer, wherein the first metal film layer links contact holes for a source, a drain, or a poly gate of a CMOS device.Type: GrantFiled: July 24, 2012Date of Patent: November 19, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kuan-Chieh Huang, Chih-Jen Wu, Chen-Ming Huang, Dun-Nian Yaung, An-Chun Tu
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Publication number: 20130076385Abstract: A resistive test structure that includes a semiconductor substrate with an active region, a gate stack formed over the active region, a first electrical contact in communication with the active region on opposing sides of the gate stack, the first electrical contact providing an electrical short across a first dimension of the gate stack, and a second electrical contact in communication with the active region on the opposing sides of the gate stack, the second electrical contact providing an electrical short across the first dimension of the gate stack, the first and second electrical contacts spaced along a second dimension of the gate stack perpendicular to the first dimension.Type: ApplicationFiled: September 23, 2011Publication date: March 28, 2013Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: An-Chun Tu, Chen-Ming Huang, Chih-Jen Wu, Chin-Hsiang Lin
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Patent number: 8352062Abstract: A method for fabricating a integrated circuit with improved performance is disclosed. The method comprises providing a substrate; performing a plurality of processes to form a gate stack over the substrate, wherein the gate stack comprises a gate layer; measuring a grain size of the gate layer after at least one of the plurality of processes; determining whether the measured grain size is within a target range; and modifying a recipe of at least one of the plurality of processes if the measured grain size of the gate layer is not within the target range.Type: GrantFiled: March 11, 2009Date of Patent: January 8, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chih-Jen Wu, Chen-Ming Huang, An-Chun Tu
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Publication number: 20120288982Abstract: This description relates to a method for reducing CMOS Image Sensor (CIS) contact resistance, the CIS having a pixel array and a periphery. The method includes performing Physical Vapor Deposition (PVD) at a pixel contact hole area, annealing for silicide formation at the pixel contact hole area and performing contact filling. This description also relates to a method for reducing CMOS Image Sensor (CIS) contact resistance, the CIS having a pixel array and a periphery. The method includes implanting N+ or P+ for pixel contact plugs at a pixel contact hole area, performing Physical Vapor Deposition (PVD) at pixel contact hole area, annealing for silicide formation at the pixel contact hole area, performing contact filling and depositing a first metal film layer, wherein the first metal film layer links contact holes for a source, a drain, or a poly gate of a CMOS device.Type: ApplicationFiled: July 24, 2012Publication date: November 15, 2012Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Kuan-Chieh HUANG, Chih-Jen WU, Chen-Ming HUANG, Dun-Nian YAUNG, An-Chun TU
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Patent number: 8247262Abstract: A method for performing a CMOS Image Sensor (CIS) silicide process is provided to reduce pixel contact resistance. In one embodiment, the method comprises forming a Resist Protect Oxide (RPO) layer on the CIS, forming a Contact Etch Stop Layer (CESL), forming an Inter-Layer Dielectric (ILD) layer, performing contact lithography/etching, performing Physical Vapor Deposition (PVD) at a pixel contact hole area, annealing for silicide formation at pixel contact hole area, performing contact filling, and defining the first metal layer. The Resist Protect Oxide (RPO) layer can be formed without using a photo mask of Cell Resist Protect Oxide (CIRPO) photolithography for pixel array and/or without silicide process at pixel array. The method can include implanting N+ or P+ for pixel contact plugs at the pixel contact hole area. The contact filling can comprise depositing contact glue plugs and performing Chemical Mechanical Polishing (CMP).Type: GrantFiled: May 3, 2010Date of Patent: August 21, 2012Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kuan-Chieh Huang, Chih-Jen Wu, Chen-Ming Huang, Dun-Nian Yaung, An-Chun Tu
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Publication number: 20100279459Abstract: A method for performing a CMOS Image Sensor (CIS) silicide process is provided to reduce pixel contact resistance. In one embodiment, the method comprises forming a Resist Protect Oxide (RPO) layer on the CIS, forming a Contact Etch Stop Layer (CESL), forming an Inter-Layer Dielectric (ILD) layer, performing contact lithography/etching, performing Physical Vapor Deposition (PVD) at a pixel contact hole area, annealing for silicide formation at pixel contact hole area, performing contact filling, and defining the first metal layer. The Resist Protect Oxide (RPO) layer can be formed without using a photo mask of Cell Resist Protect Oxide (CIRPO) photolithography for pixel array and/or without silicide process at pixel array. The method can include implanting N+ or P+ for pixel contact plugs at the pixel contact hole area. The contact filling can comprise depositing contact glue plugs and performing Chemical Mechanical Polishing (CMP).Type: ApplicationFiled: May 3, 2010Publication date: November 4, 2010Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Kuan-Chieh HUANG, Chih-Jen WU, Chen-Ming HUANG, Dun-Nian YAUNG, An-Chun TU
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Publication number: 20100270636Abstract: A backside illuminated image sensor includes an isolation structure passing through a substrate, a sensor element formed overlying the front surface of the substrate, and a color filter formed overlying the back surface of the substrate.Type: ApplicationFiled: April 23, 2010Publication date: October 28, 2010Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Kuan-Chieh HUANG, Chih-Jen WU, Chen-Ming HUANG, Dun-Nian YAUNG, An-Chun TU
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Publication number: 20100234975Abstract: A method for fabricating a integrated circuit with improved performance is disclosed. The method comprises providing a substrate; performing a plurality of processes to form a gate stack over the substrate, wherein the gate stack comprises a gate layer; measuring a grain size of the gate layer after at least one of the plurality of processes; determining whether the measured grain size is within a target range; and modifying a recipe of at least one of the plurality of processes if the measured grain size of the gate layer is not within the target range.Type: ApplicationFiled: March 11, 2009Publication date: September 16, 2010Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chih-Jen Wu, Chen-Ming Huang, An-Chun Tu