Patents by Inventor Eric Perfecto
Eric Perfecto 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: 12677640Abstract: A first semiconductor build has a first back end of the line having a dielectric stack, metal wiring lines, vias and joining pads that are constructed into a first electrical connected path, having a first and second end, and passing through a portion of the first back end of the line dielectric stack. A second semiconductor build has a similar first electrical connected path. The first and second builds are bonded to a third semiconductor build, with the second end of the first electrical connected path of the first semiconductor build and the first end of the first electrical connected path of the second semiconductor build electrically coupled together in series via a first electrical connected path of the third semiconductor build, such that the resistance/conductivity measured from the first end of the first semiconductor build to the second end of the second semiconductor build verifies conductivity of the paths.Type: GrantFiled: December 14, 2023Date of Patent: July 7, 2026Assignee: International Business Machines CorporationInventors: Nicholas Alexander Polomoff, Huai Huang, Ravi K. Bonam, Haojun Zhang, Katsuyuki Sakuma, Mukta Ghate Farooq, Eric Perfecto, Spyridon Skordas
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Publication number: 20260173953Abstract: A semiconductor structure includes a semiconductor wafer having an insulating surface and a plurality of metal pads thereon; and a plurality of individual semiconductor dies having a front side and a back side. Each die has an insulating surface and metal pads on the front side. The plurality of individual semiconductor dies are positioned over and hybrid bonded to the semiconductor wafer and respective metal pads and insulating surfaces of the semiconductor wafer and the plurality of semiconductor dies are aligned and hybrid bonded face to face. An encapsulating material is positioned over the semiconductor wafer and the plurality of semiconductor dies to provide mechanical stability and an insulating surface over the plurality of individual semiconductor dies.Type: ApplicationFiled: December 13, 2024Publication date: June 18, 2026Inventors: Nicholas Alexander POLOMOFF, RAVI K. BONAM, Eric Perfecto, Roy R. Yu, Katsuyuki Sakuma
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Patent number: 12469787Abstract: A semiconductor element includes a conductive pad. The semiconductor element further includes a first layer of a first polyimide material having an uppermost surface. The first layer includes a via trench extending through the first layer from the uppermost surface to the conductive pad. The semiconductor element further includes a second layer of a second polyimide material arranged in direct contact with the uppermost surface. The second layer includes a line trench extending to the uppermost surface. The semiconductor element further includes a conductive structure arranged in the via trench and the line trench such that copper is in direct contact with the second polyimide material.Type: GrantFiled: February 21, 2022Date of Patent: November 11, 2025Assignee: International Business Machines CorporationInventors: Mukta Ghate Farooq, James J. Kelly, Eric Perfecto, Spyridon Skordas, Dale Curtis McHerron
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Publication number: 20250201638Abstract: A first semiconductor build has a first back end of the line having a dielectric stack, metal wiring lines, vias and joining pads that are constructed into a first electrical connected path, having a first and second end, and passing through a portion of the first back end of the line dielectric stack. A second semiconductor build has a similar first electrical connected path. The first and second builds are bonded to a third semiconductor build, with the second end of the first electrical connected path of the first semiconductor build and the first end of the first electrical connected path of the second semiconductor build electrically coupled together in series via a first electrical connected path of the third semiconductor build, such that the resistance/conductivity measured from the first end of the first semiconductor build to the second end of the second semiconductor build verifies conductivity of the paths.Type: ApplicationFiled: December 14, 2023Publication date: June 19, 2025Inventors: Nicholas Alexander POLOMOFF, Huai Huang, RAVI K. BONAM, Haojun Zhang, Katsuyuki Sakuma, Mukta Ghate Farooq, Eric Perfecto, SPYRIDON SKORDAS
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Patent number: 12300615Abstract: A stack structure that includes: a device wafer, a handler wafer, and a bonding structure disposed between the device wafer and the handler wafer, wherein one or both of the device wafer and the handler wafer have a release layer that is configured to be substantially or completely vaporized by infrared ablation when exposed to an infrared laser energy. The device wafer includes at least two consecutive layers adjacent the bonding structure that together include a plurality of fill portions that substantially or completely disable entry of the infrared laser energy into a plurality of layers of the device wafer below the two consecutive layers adjacent the bonding structure.Type: GrantFiled: November 17, 2022Date of Patent: May 13, 2025Assignee: International Business Machines CorporationInventors: Mukta Ghate Farooq, Qianwen Chen, Shahid Butt, Eric Perfecto, Michael P. Belyansky, Katsuyuki Sakuma, John Knickerbocker
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Publication number: 20240332239Abstract: A three-dimensional (3D) die architecture is provided. The 3D die architecture includes a first die and a second die. The second die includes multiple interior layers of various types and is hybrid bonded to the first die along a hybrid bond layer. The 3D die architecture further includes oxide liner material extending from an exposed surface of the second die to the hybrid bond layer, a first through-silicon-via (TSV) extending from the exposed surface to a corresponding one of the multiple interior layers and a second TSV extending within the oxide liner material from the exposed surface to the hybrid bond layer.Type: ApplicationFiled: March 29, 2023Publication date: October 3, 2024Inventors: Nicholas Alexander Polomoff, Mukta Ghate Farooq, Dale Curtis McHerron, Eric Perfecto, Katsuyuki Sakuma, SPYRIDON SKORDAS
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Publication number: 20240170288Abstract: A stack structure that includes: a device wafer, a handler wafer, and a bonding structure disposed between the device wafer and the handler wafer, wherein one or both of the device wafer and the handler wafer have a release layer that is configured to be substantially or completely vaporized by infrared ablation when exposed to an infrared laser energy. The device wafer includes at least two consecutive layers adjacent the bonding structure that together include a plurality of fill portions that substantially or completely disable entry of the infrared laser energy into a plurality of layers of the device wafer below the two consecutive layers adjacent the bonding structure.Type: ApplicationFiled: November 17, 2022Publication date: May 23, 2024Inventors: Mukta Ghate Farooq, Qianwen Chen, Shahid Butt, Eric Perfecto, Michael P. Belyansky, Katsuyuki Sakuma, John Knickerbocker
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Publication number: 20240113055Abstract: A hybrid bonded semiconductor structure includes a first substrate and a second substrate each having an interface joined in a hybrid bond. Each substrate has a die portion and a crackstop structure adjacent the die portion. One or more voids in the first substrate and the second substrate are formed in or about a portion of a periphery of each crackstop structure. At least some of the one or more voids in the first substrate and the second substrate are substantially aligned to form a unified void with airgaps across the hybrid bond interface.Type: ApplicationFiled: September 30, 2022Publication date: April 4, 2024Inventors: Nicholas Alexander Polomoff, Eric Perfecto, Katsuyuki Sakuma, Mukta Ghate Farooq, Spyridon Skordas, Sathyanarayanan Raghavan, Michael P. Belyansky
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Publication number: 20230268275Abstract: A semiconductor element includes a conductive pad. The semiconductor element further includes a first layer of a first polyimide material having an uppermost surface. The first layer includes a via trench extending through the first layer from the uppermost surface to the conductive pad. The semiconductor element further includes a second layer of a second polyimide material arranged in direct contact with the uppermost surface. The second layer includes a line trench extending to the uppermost surface. The semiconductor element further includes a conductive structure arranged in the via trench and the line trench such that copper is in direct contact with the second polyimide material.Type: ApplicationFiled: February 21, 2022Publication date: August 24, 2023Inventors: Mukta Ghate Farooq, James J. Kelly, Eric Perfecto, SPYRIDON SKORDAS, Dale Curtis McHerron
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Patent number: 10438894Abstract: A multi-chip semiconductor device with multi-level structure including a substrate with a top substrate surface, a cavity with a depth in the substrate, a first chip having a top first chip surface with a first chip height, optionally including a second chip having a top second chip surface with a second chip height, and a connecting passive chip bridging the first chip, the second chip and the substrate by solder bumps wherein the solder bumps enable the connecting passive chip to be level.Type: GrantFiled: May 30, 2018Date of Patent: October 8, 2019Assignee: GLOBALFOUNDRIES INC.Inventors: Mukta Farooq, Koushik Ramachandran, Eric Perfecto, Ian Melville
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Publication number: 20060289607Abstract: A method for constructing a composite solder transfer moldplate for flip chip wafer bumping of a substrate, comprising the steps of coating at least one polymer layer onto a first side of a transparent plate, the plate having a thermal expansion coefficient similar to that of the substrate; and forming a multiplicity of cavities in a polymer layer on one side of the plate, each cavity being for receiving solder. A moldplate made by the method. The structure has required behavior through temperature excursions between room temperature and various solder molten temperatures.Type: ApplicationFiled: June 28, 2005Publication date: December 28, 2006Inventors: Stephen Buchwalter, David Danovitch, Frank Egitto, Peter Gruber, Eric Perfecto, Da-Yuan Shih
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Publication number: 20060255480Abstract: Sealing a via using a soventless, low viscosity, high temperature stable polymer or a high solids content polymer solution of low viscosity, where the polymeric material is impregnated within the via at an elevated temperature. A supply chamber is introduced to administer the polymeric material at an elevated temperature, typically at a temperature high enough to liquefy the polymeric material. The polymeric material is introduced through heated supply lines under force from a pump, piston, or a vacuum held within said supply chamber.Type: ApplicationFiled: May 13, 2005Publication date: November 16, 2006Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Jon Casey, Michael Berger, Leena Buchwalter, Donald Canaperi, Raymond Horton, Anurag Jain, Eric Perfecto, James Tornello