Patents by Inventor Craig Mitchell

Craig Mitchell 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).

  • Patent number: 8686565
    Abstract: An assembly and method of making same are provided. The assembly can be formed by stacking a first semiconductor element atop a second semiconductor element and forming an electrically conductive element extending through openings of the semiconductor elements. The openings may be staged. The conductive element can conform to contours of the interior surfaces of the openings and can electrically connect conductive pads of the semiconductor elements. A dielectric region can be provided at least substantially filling the openings of the semiconductor elements, and the electrically conductive element can extend through an opening formed in the dielectric region.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: April 1, 2014
    Assignee: Tessera, Inc.
    Inventors: Vage Oganesian, Belgacem Haba, Ilyas Mohammed, Craig Mitchell, Piyush Savalia
  • Publication number: 20140084485
    Abstract: Methods and apparatus for forming a semiconductor device are provided which may include any number of features. One feature is a method of forming an interconnect structure that results in the interconnect structure having a top surface and portions of the side walls of the interconnect structure covered in a dissimilar material. In some embodiments, the dissimilar material can be a conductive material or a nano-alloy. The interconnect structure can be formed by removing a portion of the interconnect structure, and covering the interconnect structure with the dissimilar material. The interconnect structure can comprise a damascene structure, such as a single or dual damascene structure, or alternatively, can comprise a silicon-through via (TSV) structure.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 27, 2014
    Applicant: TESSERA, INC.
    Inventors: Cyprian Emeka Uzoh, Belgacem Haba, Craig Mitchell
  • Publication number: 20140057370
    Abstract: A method of bonding a first substrate and a second substrate includes the steps of rotating first substrate with an adhesive mass thereon, and second substrate contacting the mass and overlying the first substrate, controlling a vertical height of a heated control platen spaced apart from and not contacting the second substrate so as to control a temperature of the adhesive mass, so as to at least one of bond the first and second substrates in alignment with one another, or achieve a sufficiently planar adhesive interface between the first and second substrates.
    Type: Application
    Filed: August 19, 2013
    Publication date: February 27, 2014
    Applicant: Tessera, Inc.
    Inventors: Vage Oganesian, Belgacem Haba, Ilyas Mohammed, Piyush Savalia, Craig Mitchell
  • Publication number: 20140048954
    Abstract: A microelectronic assembly is provided in which first and second electrically conductive pads exposed at front surfaces of first and second microelectronic elements, respectively, are juxtaposed, each of the microelectronic elements embodying active semiconductor devices. An electrically conductive element may extend within a first opening extending from a rear surface of the first microelectronic element towards the front surface thereof, within a second opening extending from the first opening towards the front surface of the first microelectronic element, and within a third opening extending through at least one of the first and second pads to contact the first and second pads. Interior surfaces of the first and second openings may extend in first and second directions relative to the front surface of the first microelectronic element, respectively, to define a substantial angle.
    Type: Application
    Filed: October 23, 2013
    Publication date: February 20, 2014
    Applicant: TESSERA, INC.
    Inventors: Vage Oganesian, Belgacem Haba, Ilyas Mohammed, Craig Mitchell, Piyush Savalia
  • Patent number: 8652935
    Abstract: A method of bonding first and second microelectronic elements includes pressing together a first substrate containing active circuit elements therein with a second substrate, with a flowable dielectric material between confronting surfaces of the respective substrates, each of the first and second substrates having a coefficient of thermal expansion less than 10 parts per million/° C., at least one of the confronting surfaces having a plurality of channels extending from an edge of such surface, such that the dielectric material between planes defined by the confronting surfaces is at least substantially free of voids and has a thickness over one micron, and at least some of the dielectric material flows into at least some of the channels.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: February 18, 2014
    Assignee: Tessera, Inc.
    Inventors: Ilyas Mohammed, Piyush Savalia, Craig Mitchell, Vage Oganesian, Belgacem Haba
  • Patent number: 8637968
    Abstract: A microelectronic assembly can include first and second microelectronic elements each embodying active semiconductor devices adjacent a front surface thereof, and having an electrically conductive pad exposed at the respective front surface. An interposer of material having a CTE less than 10 ppm/° C. has first and second surfaces attached to the front surfaces of the respective first and second microelectronic elements, the interposer having a second conductive element extending within an opening in the interposer. First and second conductive elements extend within openings extending from the rear surface of a respective microelectronic element of the first and second microelectronic elements towards the front surface of the respective microelectronic element.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: January 28, 2014
    Assignee: Tessera, Inc.
    Inventors: Belgacem Haba, Vage Oganesian, Ilyas Mohammed, Piyush Savalia, Craig Mitchell
  • Publication number: 20130341804
    Abstract: Disclosed are a microelectronic assembly of two elements and a method of forming same. A microelectronic element includes a major surface, and a dielectric layer and at least one bond pad exposed at the major surface. The microelectronic element may contain a plurality of active circuit elements. A first metal layer is deposited overlying the at least one bond pad and the dielectric layer. A second element having a second metal layer deposited thereon is provided, and the first metal layer is joined with the second metal layer. The assembly may be severed along dicing lanes into individual units each including a chip.
    Type: Application
    Filed: July 11, 2013
    Publication date: December 26, 2013
    Applicant: Tessera, Inc.
    Inventors: Vage Oganesian, Belgacem Haba, Ilyas Mohammed, Piyush Savalia, Craig Mitchell
  • Patent number: 8610259
    Abstract: A microelectronic unit includes a semiconductor element consisting essentially of semiconductor material and having a front surface, a rear surface, a plurality of active semiconductor devices adjacent the front surface, a plurality of conductive pads exposed at the front surface, and an opening extending through the semiconductor element. At least one of the conductive pads can at least partially overlie the opening and can be electrically connected with at least one of the active semiconductor devices. The microelectronic unit can also include a first conductive element exposed at the rear surface for connection with an external component, the first conductive element extending through the opening and electrically connected with the at least one conductive pad, and a second conductive element extending through the opening and insulated from the first conductive element. The at least one conductive pad can overlie a peripheral edge of the second conductive element.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: December 17, 2013
    Assignee: Tessera, Inc.
    Inventors: Vage Oganesian, Belgacem Haba, Ilyas Mohammed, Craig Mitchell, Piyush Savalia
  • Patent number: 8610264
    Abstract: A microelectronic assembly includes a substrate and an electrically conductive element. The substrate can have a CTE less than 10 ppm/° C., a major surface having a recess not extending through the substrate, and a material having a modulus of elasticity less than 10 GPa disposed within the recess. The electrically conductive element can include a joining portion overlying the recess and extending from an anchor portion supported by the substrate. The joining portion can be at least partially exposed at the major surface for connection to a component external to the microelectronic unit.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: December 17, 2013
    Assignee: Tessera, Inc.
    Inventors: Vage Oganesian, Belgacem Haba, Ilyas Mohammed, Piyush Savalia, Craig Mitchell
  • Patent number: 8609540
    Abstract: Methods and apparatus for forming a semiconductor device are provided which may include any number of features. One feature is a method of forming an interconnect structure that results in the interconnect structure having a top surface and portions of the side walls of the interconnect structure covered in a dissimilar material. In some embodiments, the dissimilar material can be a conductive material or a nano-alloy. The interconnect structure can be formed by removing a portion of the interconnect structure, and covering the interconnect structure with the dissimilar material. The interconnect structure can comprise a damascene structure, such as a single or dual damascene structure, or alternatively, can comprise a silicon-through via (TSV) structure.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: December 17, 2013
    Assignee: Tessera, Inc.
    Inventors: Cyprian Uzoh, Belgacem Haba, Craig Mitchell
  • Publication number: 20130328186
    Abstract: A component can include a substrate and a conductive via extending within an opening in the substrate. The substrate can have first and second opposing surfaces. The opening can extend from the first surface towards the second surface and can have an inner wall extending away from the first surface. A dielectric material can be exposed at the inner wall. The conductive via can define a relief channel within the opening adjacent the first surface. The relief channel can have an edge within a first distance from the inner wall in a direction of a plane parallel to and within five microns below the first surface, the first distance being the lesser of one micron and five percent of a maximum width of the opening in the plane. The edge can extend along the inner wall to span at least five percent of a circumference of the inner wall.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: INVENSAS CORPORATION
    Inventors: Cyprian Emeka Uzoh, Charles G. Woychik, Terrence Caskey, Kishor V. Desai, Huailiang Wei, Craig Mitchell, Belgacem Haba
  • Patent number: 8598695
    Abstract: A structure including a first semiconductor chip with front and rear surfaces and a cavity in the rear surface. A second semiconductor chip is mounted within the cavity. The first chip may have vias extending from the cavity to the front surface and via conductors within these vias serving to connect the additional microelectronic element to the active elements of the first chip. The structure may have a volume comparable to that of the first chip alone and yet provide the functionality of a multi-chip assembly. A composite chip incorporating a body and a layer of semiconductor material mounted on a front surface of the body similarly may have a cavity extending into the body from the rear surface and may have an additional microelectronic element mounted in such cavity.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: December 3, 2013
    Assignee: Tessera, Inc.
    Inventors: Vage Oganesian, Ilyas Mohammed, Craig Mitchell, Belgacem Haba, Piyush Savalia
  • Patent number: 8587126
    Abstract: A microelectronic assembly is provided in which first and second electrically conductive pads exposed at front surfaces of first and second microelectronic elements, respectively, are juxtaposed, each of the microelectronic elements embodying active semiconductor devices. An electrically conductive element may extend within a first opening extending from a rear surface of the first microelectronic element towards the front surface thereof, within a second opening extending from the first opening towards the front surface of the first microelectronic element, and within a third opening extending through at least one of the first and second pads to contact the first and second pads. Interior surfaces of the first and second openings may extend in first and second directions relative to the front surface of the first microelectronic element, respectively, to define a substantial angle.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: November 19, 2013
    Assignee: Tessera, Inc.
    Inventors: Vage Oganesian, Belgacem Haba, Ilyas Mohammed, Craig Mitchell, Piyush Savalia
  • Patent number: 8551195
    Abstract: A composition and method is disclosed for a wickless semi-liquid candle.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: October 8, 2013
    Inventors: Robby Craig Mitchell, Lesinee Mitchell
  • Patent number: 8512491
    Abstract: A method of bonding a first substrate and a second substrate includes the steps of rotating first substrate with an adhesive mass thereon, and second substrate contacting the mass and overlying the first substrate, controlling a vertical height of a heated control platen spaced apart from and not contacting the second substrate so as to control a temperature of the adhesive mass, so as to at least one of bond the first and second substrates in alignment with one another, or achieve a sufficiently planar adhesive interface between the first and second substrates.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: August 20, 2013
    Assignee: Tessera, Inc.
    Inventors: Vage Oganesian, Belgacem Haba, Ilyas Mohammed, Piyush Savalia, Craig Mitchell
  • Patent number: 8486758
    Abstract: Disclosed are a microelectronic assembly of two elements and a method of forming same. A microelectronic element includes a major surface, and a dielectric layer and at least one bond pad exposed at the major surface. The microelectronic element may contain a plurality of active circuit elements. A first metal layer is deposited overlying the at least one bond pad and the dielectric layer. A second element having a second metal layer deposited thereon is provided, and the first metal layer is joined with the second metal layer. The assembly may be severed along dicing lanes into individual units each including a chip.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: July 16, 2013
    Assignee: Tessera, Inc.
    Inventors: Vage Oganesian, Belgacem Haba, Ilyas Mohammed, Piyush Savalia, Craig Mitchell
  • Publication number: 20130122747
    Abstract: An interconnection component includes an element with an opening, a plurality of conductors electrically insulted from one another extending through the opening, and a plurality of second contacts electrically insulated from one another. The element is comprised of a material having a coefficient of thermal expansion of less than 10 parts per million per degree Celsius. At least some of the conductors extend along at least one inner surface of the opening. The conductors define a plurality of wettable first contacts at the first surface. The first contacts are at least partially aligned with the opening in a direction of the thickness and electrically insulated from one another.
    Type: Application
    Filed: November 15, 2011
    Publication date: May 16, 2013
    Applicant: INVENSAS CORPORATION
    Inventors: Cyprian Uzoh, Craig Mitchell, Belgacem Haba, Ilyas Mohammed
  • Publication number: 20130014978
    Abstract: Barrier layers for use in electrical applications. In some embodiments the barrier layer is a laminated barrier layer. In some embodiments the barrier layer includes a graded barrier layer.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 17, 2013
    Applicant: Tessera, Inc.
    Inventors: Cyprian Uzoh, Vage Oganesian, Ilyas Mohammed, Belgacem Haba, Piyush Savalia, Craig Mitchell
  • Publication number: 20130014979
    Abstract: Electrical contacts comprising a surface with a plurality of cavities therein and their methods of manufacture and use.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 17, 2013
    Applicant: Tessera, Inc.
    Inventors: Cyprian Uzoh, Craig Mitchell
  • Patent number: 8353534
    Abstract: A vehicle includes a vehicular frame, a utility bed, and a passenger restraint assembly. The utility bed is coupled with the vehicular frame and includes a bed floor, a side wall, and a rear scat. The passenger restraint assembly includes a securing member, a belt and a retractor. The securing member is coupled with the utility bed adjacent to the rear seat. The belt includes a first end; a second end, and a securing portion. The securing portion is configured for selective engagement with the securing member. The retractor is coupled with the side wall. The retractor includes a carrier that is coupled with the first end of the belt and is configured to facilitate selective dispensation of the belt.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: January 15, 2013
    Assignee: Honda Motor Company, Ltd.
    Inventors: David W. Arnold, Craig Mitchell, Justin Michael Winter