Patents by Inventor Karrthik Parathithasan
Karrthik Parathithasan 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: 11871667Abstract: Methods and apparatus for processing a substrate are provided herein. For example, a system for processing a substrate includes a process chamber comprising a first processing volume and a second processing volume, a carrier disposed in the first processing volume, comprising a first thermoelectric module (TEM), and configured to support the substrate while the substrate is being heated or cooled, a chuck disposed within the second processing volume, comprising a second TEM, and configured to receive the substrate from the carrier and to support the substrate while the substrate is being heated or cooled, and a system controller configured to monitor a temperature of at least one of the substrate, the carrier, or the chuck during operation, and based on the temperature of the at least one of the substrate, the carrier, or the chuck, supply current to at least one of the first TEM or the second TEM.Type: GrantFiled: September 17, 2020Date of Patent: January 9, 2024Assignee: APPLIED MATERIALS, INC.Inventors: Sriskantharajah Thirunavukarasu, Puay Han Tan, Karrthik Parathithasan, Jun-Liang Su, Fang Jie Lim, Chin Wei Tan, Wei Jie Dickson Teo
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Publication number: 20220085268Abstract: Methods and apparatus for processing a substrate are provided herein. For example, a system for processing a substrate includes a process chamber comprising a first processing volume and a second processing volume, a carrier disposed in the first processing volume, comprising a first thermoelectric module (TEM), and configured to support the substrate while the substrate is being heated or cooled, a chuck disposed within the second processing volume, comprising a second TEM, and configured to receive the substrate from the carrier and to support the substrate while the substrate is being heated or cooled, and a system controller configured to monitor a temperature of at least one of the substrate, the carrier, or the chuck during operation, and based on the temperature of the at least one of the substrate, the carrier, or the chuck, supply current to at least one of the first TEM or the second TEM.Type: ApplicationFiled: September 17, 2020Publication date: March 17, 2022Inventors: Sriskantharajah THIRUNAVUKARASU, Puay Han TAN, Karrthik PARATHITHASAN, Jun-Liang SU, Fang Jie LIM, Chin Wei TAN, Wei Jie Dickson TEO
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Patent number: 10930542Abstract: Embodiments of methods and apparatus for handling substrates of different sizes are provided herein. In some embodiments, an apparatus for handling substrates of different sizes includes: a pair of end effectors having a first set of contact pads configured to support a substrate having a first size and a second set of contact pads configured to support a substrate having a second size, smaller than the first size.Type: GrantFiled: February 11, 2019Date of Patent: February 23, 2021Assignee: APPLIED MATERIALS, INC.Inventors: Sriskantharajah Thirunavukarasu, Eng Sheng Peh, Karrthik Parathithasan, Fang Jie Lim
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Publication number: 20210035795Abstract: Methods and apparatus for reducing warpage of a substrate. In some embodiments, a method of reducing substrate warpage comprises heating the substrate with an epoxy layer to at least a glass transition temperature of the epoxy layer while allowing the substrate to expand; maintaining the at least the glass transition temperature of the substrate until the substrate is constrained; constraining the substrate with a total clamping force of approximately 5000N to approximately 7000N exerted towards the substrate from a top direction and a bottom direction; applying at least one electrostatic field to the substrate with a first electrostatic chuck positioned above the substrate and a second electrostatic chuck positioned below the substrate; and rapidly cooling the substrate using a first liquid convection heat sink positioned above the substrate and a second liquid convection heat sink positioned below the substrate.Type: ApplicationFiled: July 23, 2020Publication date: February 4, 2021Inventors: Qi Jie PENG, Prayudi LIANTO, Chin Wei TAN, Sriskantharajah THIRUNAVUKARASU, Arvind SUNDARRAJAN, Jun-Liang SU, Fang Jie LIM, Manorajh ARUNAKIRI, Wei Jie Dickson TEO, Karrthik PARATHITHASAN, Puay Han TAN
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Patent number: 10847400Abstract: Methods for bonding and de-bonding a thin substrate film to a carrier plate are provided herein. In some embodiments, a method of processing a semiconductor substrate includes applying a polymer layer that is non-adhesive to a carrier plate formed of a dielectric material. A second layer is then applied to the polymer layer. One or more redistribution layers are then formed on the second layer. The second layer is then separated from the carrier plate via at least one of magnetic induction heating, infrared exposure, or electrostatic repulsion.Type: GrantFiled: February 26, 2019Date of Patent: November 24, 2020Assignee: APPLIED MATERIALS, INC.Inventors: Sriskantharajah Thirunavukarasu, Arvind Sundarrajan, Karrthik Parathithasan, Qi Jie Peng, Manorajh Arunakiri
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Publication number: 20200211883Abstract: Methods for bonding and de-bonding a thin substrate film to a carrier plate are provided herein. In some embodiments, a method of processing a semiconductor substrate includes applying a polymer layer that is non-adhesive to a carrier plate formed of a dielectric material. A second layer is then applied to the polymer layer. One or more redistribution layers are then formed on the second layer. The second layer is then separated from the carrier plate via at least one of magnetic induction heating, infrared exposure, or electrostatic repulsion.Type: ApplicationFiled: February 26, 2019Publication date: July 2, 2020Inventors: SRISKANTHARAJAH THIRUNAVUKARASU, ARVIND SUNDARRAJAN, KARRTHIK PARATHITHASAN, QI JIE PENG, MANORAJH ARUNAKIRI
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Patent number: 10504762Abstract: A bridging front opening unified pod (FOUP) is provided herein. In some embodiments, the bridging FOUP includes a bottom floor, side walls, a ceiling and a back wall that forms an enclosure volume having a front opening, a plurality of supports coupled to the side walls and extending into the enclosure volume, wherein the plurality of supports are configured to support a substrate carrier, a base plate assembly comprising a base plate coupled to the bottom floor, a pair of L-brackets coupled to the base plate, wherein each L-brackets includes a short lift pin, a long lift pin coupled to the base plate, wherein the height of the short lift pins and the long lift pin is selected such that the substrate is kept level when disposed thereon, and a docking support disposed proximate the base plate assembly and configured to support a substrate carrier.Type: GrantFiled: April 18, 2018Date of Patent: December 10, 2019Assignee: APPLIED MATERIALS, INC.Inventors: Karrthik Parathithasan, Fang Jie Lim, Sriskantharajah Thirunavukarasu, Eng Sheng Peh
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Publication number: 20190259635Abstract: Embodiments of a process kit for processing reduced size substrates are provided herein. In some embodiments, a process kit includes a substrate carrier having a pocket configured to hold a substrate, wherein the pocket extends partially through a thickness of the substrate carrier; and wherein the pocket includes an annular trench disposed at a periphery of a floor of the pocket.Type: ApplicationFiled: February 12, 2019Publication date: August 22, 2019Inventors: KARRTHIK PARATHITHASAN, FANG JIE LIM, ANAND MAHADEV, SHOJU VAYYAPRON, SRISKANTHARAJAH THIRUNAVUKARASU, ENG SHENG PEH
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Publication number: 20190259647Abstract: Embodiments of a process kit for processing reduced size substrates are provided herein. In some embodiments, a process kit includes a deposition ring having an annular body; and a plurality of protrusions extending upwardly from the annular body and disposed about and equidistant from a central axis of the annular body, wherein an angle between a first protrusion and a second protrusion is between about 140° and about 180°.Type: ApplicationFiled: February 12, 2019Publication date: August 22, 2019Inventors: SRISKANTHARAJAH THIRUNAVUKARASU, ENG SHENG PEH, FANG JIE LIM, KARRTHIK PARATHITHASAN, ANAND MAHADEV, SHOJU VAYYAPRON, CHAI BOON XIAN
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Publication number: 20190252235Abstract: Embodiments of methods and apparatus for handling substrates of different sizes are provided herein. In some embodiments, an apparatus for handling substrates of different sizes includes: a pair of end effectors having a first set of contact pads configured to support a substrate having a first size and a second set of contact pads configured to support a substrate having a second size, smaller than the first size.Type: ApplicationFiled: February 11, 2019Publication date: August 15, 2019Inventors: SRISKANTHARAJAH THIRUNAVUKARASU, ENG SHENG PEH, KARRTHIK PARATHITHASAN, FANG JIE LIM
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Publication number: 20190244845Abstract: A bridging front opening unified pod (FOUP) is provided herein. In some embodiments, the bridging FOUP includes a bottom floor, side walls, a ceiling and a back wall that forms an enclosure volume having a front opening, a plurality of supports coupled to the side walls and extending into the enclosure volume, wherein the plurality of supports are configured to support a substrate carrier, a base plate assembly comprising a base plate coupled to the bottom floor, a pair of L-brackets coupled to the base plate, wherein each L-brackets includes a short lift pin, a long lift pin coupled to the base plate, wherein the height of the short lift pins and the long lift pin is selected such that the substrate is kept level when disposed thereon, and a docking support disposed proximate the base plate assembly and configured to support a substrate carrier.Type: ApplicationFiled: April 18, 2018Publication date: August 8, 2019Inventors: KARRTHIK PARATHITHASAN, FANG JIE LIM, SRISKANTHARAJAH THIRUNAVUKARASU, ENG SHENG PEH