Patents by Inventor Arkalgud R. Sitaram

Arkalgud R. Sitaram 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).

  • Publication number: 20200144217
    Abstract: A bonded structure can include a first element having a first interface feature and a second element having a second interface feature. The first interface feature can be bonded to the second interface feature to define an interface structure. A conductive trace can be disposed in or on the second element. A bond pad can be provided at an upper surface of the first element and in electrical communication with the conductive trace. An integrated device can be coupled to or formed with the first element or the second element.
    Type: Application
    Filed: December 20, 2019
    Publication date: May 7, 2020
    Inventors: Paul M. Enquist, Liang Wang, Rajesh Katkar, Javier A. DeLaCruz, Arkalgud R. Sitaram
  • Publication number: 20200126945
    Abstract: A bonded structure can include a first element having a first conductive interface feature and a second element having a second conductive interface feature. An integrated device can be coupled to or formed with the first element or the second element. The first conductive interface feature can be directly bonded to the second conductive interface feature to define an interface structure. The interface structure can be disposed about the integrated device in an at least partially annular profile to connect the first and second elements.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Inventors: Liang Wang, Rajesh Katkar, Javier A. DeLaCruz, Arkalgud R. Sitaram
  • Publication number: 20200126861
    Abstract: A device and method of forming the device that includes cavities formed in a substrate of a substrate device, the substrate device also including conductive vias formed in the substrate. Chip devices, wafers, and other substrate devices can be mounted to the substrate device. Encapsulation layers and materials may be formed over the substrate device in order to fill the cavities.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Inventors: Cyprian Emeka Uzoh, Guilian Gao, Liang Wang, Hong Shen, Arkalgud R. Sitaram
  • Patent number: 10623710
    Abstract: HD color video using monochromatic CMOS image sensors integrated in a 3D package is provided. An example 3DIC package for color video includes a beam splitter to partition received light of an image stream into multiple light outputs. Multiple monochromatic CMOS image sensors are each coupled to one of the multiple light outputs to sense a monochromatic image stream at a respective component wavelength of the received light. Each monochromatic CMOS image sensor is specially constructed, doped, controlled, and tuned to its respective wavelength of light. A parallel processing integrator or interposer chip heterogeneously combines the respective monochromatic image streams into a full-spectrum color video stream, including parallel processing of an infrared or ultraviolet stream. The parallel processing of the monochromatic image streams provides reconstruction to HD or 4K HD color video at low light levels.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: April 14, 2020
    Assignee: Invensas Corporation
    Inventors: Hong Shen, Liang Wang, Guilian Gao, Arkalgud R. Sitaram
  • Patent number: 10600760
    Abstract: Capacitive coupling of integrated circuit die components and other conductive areas is provided. Each component to be coupled has a surface that includes at least one conductive area, such as a metal pad or plate. An ultrathin layer of dielectric is formed on at least one surface to be coupled. When the two components, e.g., one from each die, are permanently contacted together, the ultrathin layer of dielectric remains between the two surfaces, forming a capacitor or capacitive interface between the conductive areas of each respective component. The ultrathin layer of dielectric may be composed of multiple layers of various dielectrics, but in one implementation, the overall thickness is less than approximately 50 nanometers. The capacitance per unit area of the capacitive interface formed depends on the particular dielectric constants ? of the dielectric materials employed in the ultrathin layer and their respective thicknesses.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: March 24, 2020
    Assignee: Invensas Corporation
    Inventors: Belgacem Haba, Arkalgud R. Sitaram
  • Patent number: 10546832
    Abstract: A bonded structure can include a first element having a first conductive interface feature and a second element having a second conductive interface feature. An integrated device can be coupled to or formed with the first element or the second element. The first conductive interface feature can be directly bonded to the second conductive interface feature to define an interface structure. The interface structure can be disposed about the integrated device in an at least partially annular profile to connect the first and second elements.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: January 28, 2020
    Assignee: Invensas Bonding Technologies, Inc.
    Inventors: Liang Wang, Rajesh Katkar, Javier A. DeLaCruz, Arkalgud R. Sitaram
  • Patent number: 10535564
    Abstract: A device and method of forming the device that includes cavities formed in a substrate of a substrate device, the substrate device also including conductive vias formed in the substrate. Chip devices, wafers, and other substrate devices can be mounted to the substrate device. Encapsulation layers and materials may be formed over the substrate device in order to fill the cavities.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: January 14, 2020
    Assignee: Invensas Corporation
    Inventors: Cyprian Emeka Uzoh, Guilian Gao, Liang Wang, Hong Shen, Arkalgud R. Sitaram
  • Patent number: 10522457
    Abstract: In a microelectronic component having conductive vias (114) passing through a substrate (104) and protruding above the substrate, one or more conductive features (120E.A, 120E.B, or both) are provided above the substrate that wrap around the conductive vias' protrusions (114?) to form capacitors, electromagnetic shields, and possibly other elements. Other features and embodiments are also provided.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: December 31, 2019
    Assignee: Invensas Corporation
    Inventors: Cyprian Emeka Uzoh, Charles G. Woychik, Arkalgud R. Sitaram, Hong Shen, Zhuowen Sun, Liang Wang, Guilian Gao
  • Patent number: 10522499
    Abstract: A bonded structure can include a first element having a first interface feature and a second element having a second interface feature. The first interface feature can be bonded to the second interface feature to define an interface structure. A conductive trace can be disposed in or on the second element. A bond pad can be provided at an upper surface of the first element and in electrical communication with the conductive trace. An integrated device can be coupled to or formed with the first element or the second element.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: December 31, 2019
    Assignee: Invensas Bonding Technologies, Inc.
    Inventors: Paul M. Enquist, Liang Wang, Rajesh Katkar, Javier A. DeLaCruz, Arkalgud R. Sitaram
  • Patent number: 10446456
    Abstract: Dies (110) with integrated circuits are attached to a wiring substrate (120), possibly an interposer, and are protected by a protective substrate (410) attached to a wiring substrate. The dies are located in cavities in the protective substrate (the dies may protrude out of the cavities). In some embodiments, each cavity surface puts pressure on the die to strengthen the mechanical attachment of the die the wiring substrate, to provide good thermal conductivity between the dies and the ambient (or a heat sink), to counteract the die warpage, and possibly reduce the vertical size. The protective substrate may or may not have its own circuitry connected to the dies or to the wiring substrate. Other features are also provided.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: October 15, 2019
    Assignee: Invensas Corporation
    Inventors: Hong Shen, Charles G. Woychik, Arkalgud R. Sitaram
  • Patent number: 10440822
    Abstract: Interposer circuitry (130) is formed on a possibly sacrificial substrate (210) from a porous core (130?) covered by a conductive coating (130?) which increases electrical conductance. The core is printed from nanoparticle ink. Then a support (120S) is formed, e.g. by molding, to mechanically stabilize the circuitry. A magnetic field can be used to stabilize the circuitry while the circuitry or the support are being formed. Other features are also provided.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: October 8, 2019
    Assignee: Invensas Corporation
    Inventors: Bong-Sub Lee, Cyprian Emeka Uzoh, Charles G. Woychik, Liang Wang, Laura Wills Mirkarimi, Arkalgud R. Sitaram
  • Patent number: 10381326
    Abstract: A method of forming a semiconductor package comprises forming one or more first vias in a first side of a substrate and attaching a first side of a first microelectronic element to the first side of the substrate. The first microelectronic element is electrically coupled to at least one of the one or more first vias. The method further comprise obtaining a second microelectronic element including one or more second vias in a first side of the second microelectronic element, and attaching a second side of the substrate to the first side of the second microelectronic element. The second microelectronic element is electrically coupled to at least one of the one or more first vias. Each of one or more connecting elements has a first end attached to a first side of the second microelectronic element and a second end extends beyond a second side of the first microelectronic element.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: August 13, 2019
    Assignee: Invensas Corporation
    Inventors: Charles G. Woychik, Arkalgud R. Sitaram, Andrew Cao, Bong-Sub Lee
  • Publication number: 20190198435
    Abstract: An integrated circuit (IC) package includes a first substrate having a backside surface and a top surface with a cavity disposed therein. The cavity has a floor defining a front side surface. A plurality of first electroconductive contacts are disposed on the front side surface, and a plurality of second electroconductive contacts are disposed on the back side surface. A plurality of first electroconductive elements penetrate through the first substrate and couple selected ones of the first and second electroconductive contacts to each other. A first die containing an IC is electroconductively coupled to corresponding ones of the first electroconductive contacts. A second substrate has a bottom surface that is sealingly attached to the top surface of the first substrate, and a dielectric material is disposed in the cavity so as to encapsulate the first die.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Applicant: INVENSAS CORPORATION
    Inventors: Hong Shen, Charles G. Woychik, Arkalgud R. Sitaram, Guilian Gao
  • Publication number: 20190189607
    Abstract: In various embodiments, a method for forming a bonded structure is disclosed. The method can comprise mounting a first integrated device die to a carrier. After mounting, the first integrated device die can be thinned. The method can include providing a first layer on an exposed surface of the first integrated device die. At least a portion of the first layer can be removed. A second integrated device die can be directly bonded to the first integrated device die without an intervening adhesive.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 20, 2019
    Inventors: Cyprian Emeka Uzoh, Arkalgud R. Sitaram, Paul Enquist
  • Publication number: 20190157199
    Abstract: In a microelectronic component having conductive vias (114) passing through a substrate (104) and protruding above the substrate, one or more conductive features (120E.A, 120E.B, or both) are provided above the substrate that wrap around the conductive vias' protrusions (114?) to form capacitors, electromagnetic shields, and possibly other elements. Other features and embodiments are also provided.
    Type: Application
    Filed: January 3, 2019
    Publication date: May 23, 2019
    Inventors: Cyprian Emeka UZOH, Charles G. WOYCHIK, Arkalgud R. SITARAM, Hong Shen, Zhuowen SUN, Liang WANG, Guilian GAO
  • Patent number: 10283484
    Abstract: A mask is formed over a first conductive portion of a conductive layer to expose a second conductive portion of the conductive layer. An electrolytic process is performed to remove conductive material from a first region and a second region of the second conductive portion. The second region is aligned with the mask relative to an electric field applied by the electrolytic process. The second region separates the first region of the second conductive portion from the first conductive portion. The electrolytic process is concentrated relative to the second region such that removal occurs at a relatively higher rate in the second region than in the first region.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: May 7, 2019
    Assignee: Invensas Corporation
    Inventors: Cyprian Emeka Uzoh, Arkalgud R. Sitaram
  • Publication number: 20190115323
    Abstract: Capacitive couplings in a direct-bonded interface for microelectronic devices are provided. In an implementation, a microelectronic device includes a first die and a second die direct-bonded together at a bonding interface, a conductive interconnect between the first die and the second die formed at the bonding interface by a metal-to-metal direct bond, and a capacitive interconnect between the first die and the second die formed at the bonding interface. A direct bonding process creates a direct bond between dielectric surfaces of two dies, a direct bond between respective conductive interconnects of the two dies, and a capacitive coupling between the two dies at the bonding interface. In an implementation, a capacitive coupling of each signal line at the bonding interface comprises a dielectric material forming a capacitor at the bonding interface for each signal line.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 18, 2019
    Applicant: Invensas Corporation
    Inventors: Belgacem Haba, Arkalgud R. Sitaram
  • Patent number: 10256177
    Abstract: An integrated circuit (IC) package includes a first substrate having a backside surface and a top surface with a cavity disposed therein. The cavity has a floor defining a front side surface. A plurality of first electroconductive contacts are disposed on the front side surface, and a plurality of second electroconductive contacts are disposed on the back side surface. A plurality of first electroconductive elements penetrate through the first substrate and couple selected ones of the first and second electroconductive contacts to each other. A first die containing an IC is electroconductively coupled to corresponding ones of the first electroconductive contacts. A second substrate has a bottom surface that is sealingly attached to the top surface of the first substrate, and a dielectric material is disposed in the cavity so as to encapsulate the first die.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 9, 2019
    Assignee: INVENSAS CORPORATION
    Inventors: Hong Shen, Charles G. Woychik, Arkalgud R. Sitaram, Guilian Gao
  • Publication number: 20190098271
    Abstract: HD color video using monochromatic CMOS image sensors integrated in a 3D package is provided. An example 3DIC package for color video includes a beam splitter to partition received light of an image stream into multiple light outputs. Multiple monochromatic CMOS image sensors are each coupled to one of the multiple light outputs to sense a monochromatic image stream at a respective component wavelength of the received light. Each monochromatic CMOS image sensor is specially constructed, doped, controlled, and tuned to its respective wavelength of light. A parallel processing integrator or interposer chip heterogeneously combines the respective monochromatic image streams into a full-spectrum color video stream, including parallel processing of an infrared or ultraviolet stream. The parallel processing of the monochromatic image streams provides reconstruction to HD or 4K HD color video at low light levels.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 28, 2019
    Applicant: Invensas Corporation
    Inventors: Hong Shen, Liang Wang, Guilian Gao, Arkalgud R. Sitaram
  • Patent number: 10204893
    Abstract: In various embodiments, a method for forming a bonded structure is disclosed. The method can comprise mounting a first integrated device die to a carrier. After mounting, the first integrated device die can be thinned. The method can include providing a first layer on an exposed surface of the first integrated device die. At least a portion of the first layer can be removed. A second integrated device die can be directly bonded to the first integrated device die without an intervening adhesive.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: February 12, 2019
    Assignee: Invensas Bonding Technologies, Inc.
    Inventors: Cyprian Emeka Uzoh, Arkalgud R. Sitaram, Paul Enquist