Patents Assigned to Monolithic 3D Inc.
  • Patent number: 11784169
    Abstract: A semiconductor device, the device including: a first substrate; a first metal layer disposed over the substrate; a second metal layer disposed over the first metal layer; a first level including a plurality of transistors, the first level disposed over the second metal layer, where the plurality of transistors include a second single crystal silicon; a third metal layer disposed over the first level; a fourth metal layer disposed over the third metal layer, where the fourth metal layer is aligned to the first metal layer with a less than 100 nm alignment error; and a via disposed through the first level, where the via has a diameter of less than 450 nm, where the fourth metal layer provides a global power distribution, and where a typical thickness of the fourth metal layer is at least 50% greater than a typical thickness of the third metal.
    Type: Grant
    Filed: April 29, 2023
    Date of Patent: October 10, 2023
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist
  • Publication number: 20230307283
    Abstract: A method for producing a 3D semiconductor device including: providing a first level including a first single crystal layer; forming a first metal layer on top of the first level; forming a second metal layer on top of the first metal layer; forming at least one second level above the second metal layer; performing a first lithography step on the second level; forming a third level on top of the second level; performing processing steps to form first memory cells within the second level and form second memory cells within the third level, where the first memory cells include at least one second transistor, and the second memory cells include at least one third transistor; and then at performing at least one deposition step which deposits gate electrodes for both the second and the third transistors, and forming at least four independent memory arrays.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 28, 2023
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist, Deepak C. Sekar
  • Patent number: 11763864
    Abstract: A 3D memory device, the device including: a plurality of memory cells, where each memory cell of the plurality of memory cells includes at least one memory transistor, where each of the at least one memory transistor includes a source, a drain, and a channel; and a plurality of bit-line pillars, where each bit-line pillar of the plurality of bit-line pillars is directly connected to a plurality of the source or the drain, where the plurality of bit-line pillars are vertically oriented, where the channel is horizontally oriented, where a plurality of the channels are connected to a body pillar, and where the body pillar is at least temporary connected to a negative bias.
    Type: Grant
    Filed: September 20, 2022
    Date of Patent: September 19, 2023
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Eli Lusky
  • Patent number: 11756822
    Abstract: A 3D device includes a first level including a first single crystal layer with control circuitry, where the control circuitry includes first single crystal transistors; a first metal layer atop first single crystal layer; a second metal layer atop the first metal layer; a third metal layer atop the second metal layer; second level (includes a plurality of second transistors) atop the third metal layer; a fourth metal layer disposed above the one second level; a fifth metal layer atop the fourth metal layer, where the second level includes at least one first oxide layer overlaid by a transistor layer and then overlaid by a second oxide layer; a global power distribution grid, which includes the fifth metal layer; a local power distribution grid including at least one second transistor, the thickness of the fifth metal layer is at least 50% greater than the thickness of the second metal layer.
    Type: Grant
    Filed: April 23, 2023
    Date of Patent: September 12, 2023
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist, Deepak Sekar
  • Patent number: 11757030
    Abstract: A semiconductor device, the device including: a first silicon layer including first single crystal silicon; an isolation layer disposed over the first silicon layer; a first metal layer disposed over the isolation layer; a second metal layer disposed over the first metal layer; a first level including a plurality of transistors, the first level disposed over the second metal layer, where the isolation layer includes an oxide to oxide bond surface, where the plurality of transistors include a second single crystal silicon region; and a third metal layer disposed over the first level, where a typical first thickness of the third metal layer is at least 50% greater than a typical second thickness of the second metal layer.
    Type: Grant
    Filed: March 22, 2023
    Date of Patent: September 12, 2023
    Assignee: Monolithic 3D Inc.
    Inventor: Zvi Or-Bach
  • Publication number: 20230275111
    Abstract: An integrated device, the device including: a first level including a first mono-crystal layer, the first mono-crystal layer including a plurality of single crystal transistors; an overlying oxide disposed on top of the first level; a second level including a second mono-crystal layer, the second level overlaying the oxide, where the second mono-crystal layer includes a plurality of image sensors, where the second level is bonded to the first level, where the bonded includes an oxide to oxide bond; and a plurality of pixel control circuits, where each of the plurality of image sensors is directly connected to at least one of the plurality of pixel control circuits, and where the integrated device includes a plurality of memory circuits.
    Type: Application
    Filed: May 1, 2023
    Publication date: August 31, 2023
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Publication number: 20230268321
    Abstract: A semiconductor device, the device including: a first substrate; a first metal layer disposed over the substrate; a second metal layer disposed over the first metal layer; a first level including a plurality of transistors, the first level disposed over the second metal layer, where the plurality of transistors include a second single crystal silicon; a third metal layer disposed over the first level; a fourth metal layer disposed over the third metal layer, where the fourth metal layer is aligned to the first metal layer with a less than 100 nm alignment error; and a via disposed through the first level, where the via has a diameter of less than 450 nm, where the fourth metal layer provides a global power distribution, and where a typical thickness of the fourth metal layer is at least 50% greater than a typical thickness of the third metal.
    Type: Application
    Filed: April 29, 2023
    Publication date: August 24, 2023
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist
  • Patent number: 11735462
    Abstract: A 3D semiconductor device, the device comprising: a first level comprising a first single crystal layer, said first level comprising first transistors, wherein each of said first transistors comprises a single crystal channel; first metal layers interconnecting at least said first transistors; a second metal layer overlaying said first metal layers; and a second level comprising a second single crystal layer, said second level comprising second transistors, wherein said second level overlays said first level, wherein at least one of said second transistors comprises a gate all around structure, wherein said second level is directly bonded to said first level, and wherein said bonded comprises direct oxide to oxide bonds.
    Type: Grant
    Filed: December 25, 2022
    Date of Patent: August 22, 2023
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist, Deepak C. Sekar
  • Patent number: 11735501
    Abstract: A 3D semiconductor device, the device including: a first level including a plurality of first metal layers; a second level, where the second level overlays the first level, where the second level includes at least one single crystal silicon layer, where the second level includes a plurality of transistors, where each transistor of the plurality of transistors includes a single crystal channel, where the second level includes a plurality of second metal layers, where the plurality of second metal layers include interconnections between the transistors of the plurality of transistors, and where the second level is overlaid by a first isolation layer; and a connective path between the plurality of transistors and the plurality of first metal layers, where the connective path includes a via disposed through at least the single crystal silicon layer, and where at least one of the transistors includes a four sided gate.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: August 22, 2023
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Publication number: 20230260826
    Abstract: A 3D device includes a first level including a first single crystal layer with control circuitry, where the control circuitry includes first single crystal transistors; a first metal layer atop first single crystal layer; a second metal layer atop the first metal layer; a third metal layer atop the second metal layer; second level (includes a plurality of second transistors) atop the third metal layer; a fourth metal layer disposed above the one second level; a fifth metal layer atop the fourth metal layer, where the second level includes at least one first oxide layer overlaid by a transistor layer and then overlaid by a second oxide layer; a global power distribution grid, which includes the fifth metal layer; a local power distribution grid including at least one second transistor, the thickness of the fifth metal layer is at least 50% greater than the thickness of the second metal layer.
    Type: Application
    Filed: April 23, 2023
    Publication date: August 17, 2023
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist, Deepak Sekar
  • Publication number: 20230253296
    Abstract: A 3D semiconductor device, the device including: a first level including a plurality of first metal layers; a second level, where the second level overlays the first level, where the second level includes at least one single crystal silicon layer, where the second level includes a plurality of transistors, where each transistor of the plurality of transistors includes a single crystal channel, where the second level includes a plurality of second metal layers, where the plurality of second metal layers include interconnections between the transistors of the plurality of transistors, and where the second level is overlaid by a first isolation layer; and a connective path between the plurality of transistors and the plurality of first metal layers, where the connective path includes a via disposed through at least the single crystal silicon layer, and where at least one of the transistors includes a four sided gate.
    Type: Application
    Filed: April 19, 2023
    Publication date: August 10, 2023
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Publication number: 20230253408
    Abstract: A multi-level semiconductor device, the device including: a first level including integrated circuits; a second level including a structure designed to conduct electromagnetic waves, where the second level is disposed above the first level, where the integrated circuits include single crystal transistors; and an oxide layer disposed between the first level and the second level, where the integrated circuits include at least one memory circuit, where the second level is bonded to the oxide layer, and where the bonded includes oxide to oxide bonds.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 10, 2023
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Patent number: 11711928
    Abstract: A semiconductor device, the device including: a first level including control circuits, where the control circuits include a plurality of first transistors and a plurality of metal layers; and a memory level disposed on top of the first level, where the memory level includes an array of memory cells, where each of the memory cells includes at least one second transistor, where the control circuits control access to the array of memory cells, where the first level is bonded to the memory level, where the bonded includes oxide to oxide bonding regions and a plurality of metal to metal bonding regions, and where at least a portion of the array of memory cells is disposed directly above at least one of the plurality of metal to metal bonding regions.
    Type: Grant
    Filed: February 5, 2023
    Date of Patent: July 25, 2023
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Brian Cronquist
  • Publication number: 20230223469
    Abstract: A semiconductor device, the device including: a first silicon layer including first single crystal silicon; an isolation layer disposed over the first silicon layer; a first metal layer disposed over the isolation layer; a second metal layer disposed over the first metal layer; a first level including a plurality of transistors, the first level disposed over the second metal layer, where the isolation layer includes an oxide to oxide bond surface, where the plurality of transistors include a second single crystal silicon region; and a third metal layer disposed over the first level, where a typical first thickness of the third metal layer is at least 50% greater than a typical second thickness of the second metal layer.
    Type: Application
    Filed: March 22, 2023
    Publication date: July 13, 2023
    Applicant: Monolithic 3D Inc.
    Inventor: Zvi Or-Bach
  • Patent number: 11694922
    Abstract: A multi-level semiconductor device, the device including: a first level including integrated circuits; a second level including a structure designed to conduct electromagnetic waves, where the second level is disposed above the first level, where the integrated circuits include single crystal transistors; and an oxide layer disposed between the first level and the second level, where the integrated circuits include at least one processor, where the second level is bonded to the oxide layer, and where the bonded includes oxide to oxide bonds.
    Type: Grant
    Filed: January 28, 2023
    Date of Patent: July 4, 2023
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Patent number: 11694944
    Abstract: A 3D semiconductor device including: a first level including a plurality of first metal layers; a second level, where the second level overlays the first level, where the second level includes at least one single crystal silicon layer, where the second level includes a plurality of transistors, where each transistor of the plurality of transistors includes a single crystal channel, where the second level includes a plurality of second metal layers, where the plurality of second metal layers include interconnections between the transistors of the plurality of transistors, and where the second level is overlaid by a first isolation layer; and a connective path between the plurality of transistors and the plurality of first metal layers, where the connective path includes a via disposed through at least the single crystal silicon layer, and where the via includes contact with at least one of the plurality of transistors.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: July 4, 2023
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Publication number: 20230205965
    Abstract: A method of designing a 3D Integrated Circuit, the method including: partitioning at least one design into at least two levels, a first level and a second level; providing placement data of the second level; performing a placement of the first level using a placer executed by a computer, where the placement of the first level is based on the placement data, where the placer is part of a Computer Aided Design (CAD) tool, and where the first level includes first routing layers; and performing a routing of the first level by routing layers using a router executed by a computer, where the router is a part of the Computer Aided Design (CAD) tool or a part of another CAD tool.
    Type: Application
    Filed: February 18, 2023
    Publication date: June 29, 2023
    Applicant: Monolithic 3D Inc
    Inventors: Zvi Or-Bach, Zeev Wurman
  • Publication number: 20230207398
    Abstract: A semiconductor device, the device including: a first silicon layer including a first single crystal silicon layer; a first metal layer disposed over the first single crystal silicon layer; a second metal layer disposed over the first metal layer; a third metal layer disposed over the second metal layer; a second level including a plurality of transistors, the second level disposed over the third metal layer; a fourth metal layer disposed over the second level; a fifth metal layer disposed over the fourth metal layer; and a via disposed through the second level, where the via has a diameter of less than 450 nm, and where a typical thickness of the fifth metal layer is greater than a typical thickness of the third metal layer by at least 50%.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 29, 2023
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist
  • Publication number: 20230197741
    Abstract: A 3D micro display, the 3D micro display including: a first level including a first single crystal layer, the first single crystal layer includes a plurality of LED driving circuits; a second level including a first plurality of light emitting diodes (LEDs), where the second level is disposed on top of the first level, where the second level includes at least ten individual first LED pixels; and a bonding structure, where the second level includes a plurality of bond pads, where the bonding structure includes oxide to oxide bonding.
    Type: Application
    Filed: February 15, 2023
    Publication date: June 22, 2023
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar
  • Publication number: 20230197573
    Abstract: A 3D semiconductor device including: a first level including a plurality of first metal layers; a second level, where the second level overlays the first level, where the second level includes at least one single crystal silicon layer, where the second level includes a plurality of transistors, where each transistor of the plurality of transistors includes a single crystal channel, where the second level includes a plurality of second metal layers, where the plurality of second metal layers include interconnections between the transistors of the plurality of transistors, and where the second level is overlaid by a first isolation layer; and a connective path between the plurality of transistors and the plurality of first metal layers, where the connective path includes a via disposed through at least the single crystal silicon layer, and where the via includes contact with at least one of the plurality of transistors.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 22, 2023
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist