Patents Assigned to Monolithic 3D Inc.
  • Publication number: 20210233901
    Abstract: A method to construct a 3D system, the method including: providing a base wafer; and then transferring a memory control on top; and then thinning the memory control, transferring a first memory wafer on top; and then thinning the first memory wafer; and then transferring a second memory wafer on top; and then thinning the second memory wafer. A 3D device, the device including: a first stratum including first bit-cell memory arrays; a second stratum including second bit-cell memory arrays; and a third stratum, where the second stratum overlays the first stratum, where the first stratum overlays the third stratum, where the third stratum includes a plurality of word-line decoders to control the first bit-cell memory arrays and the second bit-cell memory arrays.
    Type: Application
    Filed: March 28, 2021
    Publication date: July 29, 2021
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Brian Cronquist
  • Publication number: 20210225663
    Abstract: A 3D semiconductor device, the device including: a first level, where the first level includes a first layer, the first layer including first transistors, and where the first level includes a second layer, the second layer including first interconnections; a second level overlaying the first level, where the second level includes a third layer, the third layer including second transistors, and where the second level includes a fourth layer, the fourth layer including second interconnections; and a plurality of connection paths, where the plurality of connection paths provides connections from a plurality of the first transistors to a plurality of the second transistors, where the second level is bonded to the first level, where the bonded includes oxide to oxide bond regions, where the bonded includes metal to metal bond regions, where the third layer includes a crystalline layer, and where the second level includes a Radio Frequency (“RF”) circuit.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist, Deepak Sekar
  • Publication number: 20210226050
    Abstract: A 3D semiconductor device including: a first level including a first single-crystal layer, a plurality of first transistors, and at least one metal layer, the metal layer overlaying the first single crystal layer with interconnects between the first transistors forming control circuits; a second level overlaying the metal layer, a plurality of second transistors, and a plurality of first memory cells including at least one of the second transistors; a third level overlaying the second level and including a plurality of third transistors, including second memory cells each including at least one third transistor, where at least one of the second memory cells is at least partially atop of the control circuits, where the control circuits are connected so to control second transistors and third transistors, where the second level is bonded to the third level and to the first level, where the bonded includes oxide to oxide bonds; and a fourth level above the third level, including a second single-crystal layer.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Applicant: Monolithic 3D Inc.
    Inventor: Zvi Or-Bach
  • Patent number: 11069697
    Abstract: A 3D memory device, the device including: a plurality of memory cells, where each 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; a plurality of bit-line pillars, where each of the plurality of bit-line pillars is directly connected to a plurality of the source or the drain, where the bit-line pillars are vertically oriented, where the channel is horizontally oriented, and where the channel includes a circular shape or an ellipsoidal shape.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: July 20, 2021
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Eli Lusky
  • Publication number: 20210217643
    Abstract: A 3D semiconductor device, the device including: a first level including a first single crystal layer, the first level including first transistors, where the first transistors each include a single crystal channel; first metal layers interconnecting at least the first transistors; and a second level including a second single crystal layer, the second level including second transistors, where the second level overlays the first level, where the second level is bonded to the first level, where the bonded includes oxide to oxide bonds, where the bonded includes metal to metal bonds, and where through the first metal layers power is provided to at least one of the second transistors.
    Type: Application
    Filed: March 27, 2021
    Publication date: July 15, 2021
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist, Deepak C. Sekar
  • Publication number: 20210217733
    Abstract: A method to form a 3D semiconductor device, the method including: providing a first level including first circuits, the first circuits including first transistors and first interconnection; preparing a second level including a silicon layer; forming second circuits over the second level, the second circuits including second transistors and second interconnection; transferring with bonding the second level on top of the first level; and then thinning the second level to a thickness of less than ten microns, where the bonding includes oxide to oxide bonds, and where the bonding includes metal to metal bonds.
    Type: Application
    Filed: March 8, 2021
    Publication date: July 15, 2021
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist
  • Patent number: 11063071
    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 in a confined manner, where the second level is disposed above the first level, where the first level includes crystalline silicon, where the second level includes crystalline silicon; and an oxide layer disposed between the first level and the second level, where the second level is bonded to the oxide layer, and where the bonded includes oxide to oxide bonds.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: July 13, 2021
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Publication number: 20210210456
    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 in a confined manner, where the second level is disposed above the first level, where the first level includes crystalline silicon, where the second level includes crystalline silicon; and an oxide layer disposed between the first level and the second level, where the second level is bonded to the oxide layer, and where the bonded includes oxide to oxide bonds.
    Type: Application
    Filed: March 1, 2021
    Publication date: July 8, 2021
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Patent number: 11056468
    Abstract: A 3D semiconductor device, the device including: a first die including first transistors and a first interconnect; a second die including second transistors and a second interconnect; and a third die including third transistors and a third interconnect, where the first die is overlaid by the second die, where the first die is overlaid by the third die, where the first die has a first die area and the second die has a second die area, where the first die area is at least 20% larger than the second die area, where the second die is pretested, where the second die is bonded to the first die, where the bonded includes metal to metal bonding, where the first die includes at least two first alignment marks positioned close to a first die edge of the first die, where the second die is aligned to the first die with less than 800 nm alignment error, where the second die includes at least two second alignment marks positioned close to a second die edge of the second die, and where the third die is bonded to the first d
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: July 6, 2021
    Assignee: Monolithic 3D Inc.
    Inventor: Zvi Or-Bach
  • Publication number: 20210193655
    Abstract: A 3D semiconductor device including: a first level, which includes a first layer, the first layer including first transistors, and where the first level includes a second layer, the second layer including first interconnections; a second level overlaying the first level, where the second level includes a third layer including second transistors, and where the second level includes a fourth layer, the fourth layer including second interconnections; a plurality of connection paths, where the paths provide connections from a plurality of the first transistors to a plurality of second transistors, where the second level is bonded to the first level, where the bonded includes oxide to oxide bond regions and metal to metal bond regions, where the second level includes at least one memory array, and where the third layer includes crystalline silicon; and a heat removal path from the first layer or the third layer to an external surface of the device.
    Type: Application
    Filed: February 7, 2021
    Publication date: June 24, 2021
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist
  • Publication number: 20210193498
    Abstract: A 3D semiconductor device, the device including: a first level including a first single crystal layer, the first level including first transistors, where the first transistors each include a single crystal channel; first metal layers interconnecting at least the first transistors; and a second level including a second single crystal layer, the second level including second transistors, where the second level overlays the first level, where the second level is bonded to the first level, where the bonded includes oxide to oxide bonds, where the bonded includes metal to metal bonds, and where at least one of the first transistors controls power delivery to at least one of the second transistors.
    Type: Application
    Filed: March 8, 2021
    Publication date: June 24, 2021
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist, Deepak C. Sekar
  • Publication number: 20210193722
    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 and alignment marks; an overlaying oxide 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 first image sensors; and a third level overlaying the second level, where the third level includes a plurality of second image sensors, where the second level is aligned to the alignment marks, where the second level is bonded to the first level, and where the bonded includes an oxide to oxide bond.
    Type: Application
    Filed: January 7, 2021
    Publication date: June 24, 2021
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Publication number: 20210193626
    Abstract: A 3D semiconductor device, the device including: a first die including first transistors and a first interconnect; a second die including second transistors and a second interconnect; and a third die including third transistors and a third interconnect, where the first die is overlaid by the second die, where the first die is overlaid by the third die, where the first die has a first die area and the second die has a second die area, where the first die area is at least 20% larger than the second die area, where the second die is pretested, where the second die is bonded to the first die, where the bonded includes metal to metal bonding, where the first die includes at least two first alignment marks positioned close to a first die edge of the first die, and where the third die is bonded to the first die.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 24, 2021
    Applicant: Monolithic 3D Inc.
    Inventor: Zvi Or-Bach
  • Patent number: 11043523
    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 and alignment marks; an overlaying oxide 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 first image sensors; and a third level overlaying the second level, where the third level includes a plurality of second image sensors, where the second level is aligned to the alignment marks, where the second level is bonded to the first level, and where the bonded includes an oxide to oxide bond.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: June 22, 2021
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Patent number: 11031275
    Abstract: A 3D semiconductor device including: a first level including logic circuits, the logic circuits include a plurality of first single crystal transistors and a first metal layer; a second level including a plurality of second transistors, where the second level includes memory cells including the plurality of second transistors; a second metal layer atop the second level; where the plurality of second transistors are junction-less transistors, where at least one of the plurality of second transistors includes polysilicon, where the memory cells are structured as a plurality of at least sixteen sub-arrays, where each of the sub-arrays is independently controlled, where at least one of the plurality of at least sixteen sub-arrays is at least partially atop at least one of the logic circuits, and where the at least one of the logic circuits is designed to control at least one of the plurality of at least sixteen sub-arrays.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: June 8, 2021
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist, Deepak C. Sekar
  • Patent number: 11030371
    Abstract: A method of designing a 3D Integrated Circuit, the method including: performing partitioning to at least a logic strata including logic and a memory strata including memory; then performing a first placement of the logic strata using a 2D placer executed by a computer, where the 2D placer is a Computer Aided Design (CAD) tool for two-dimensional devices; where the 3D Integrated Circuit includes through silicon vias for connection between the logic strata and the memory strata; and performing a second placement of the memory strata based on the first placement, where the logic includes at least one decoder representation for the memory, where the at least one decoder representation has a virtual size with width of contacts for the through silicon vias, and where the performing a first placement includes using the decoder representation instead of an actual memory decoder.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: June 8, 2021
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Zeev Wurman
  • Publication number: 20210167131
    Abstract: A method for producing a 3D memory device, the method comprising: providing a first level comprising a single crystal layer; forming at least one second level above said first level; performing a first etch step comprising etching holes within said second level; forming at least one third level above said at least one second level; performing a second etch step comprising etching holes within said third level; performing additional processing steps to form a plurality of first memory cells within said second level and a plurality of second memory cells within said third level, wherein each of said first memory cells comprise one first transistor, wherein each of said second memory cells comprise one second transistor, wherein at least one of said first or second transistors has a channel, a source and a drain having the same doping type, and wherein said forming at least one third level comprises forming a window within said third level to allow lithography alignment through said third level to an alignment m
    Type: Application
    Filed: December 14, 2020
    Publication date: June 3, 2021
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Publication number: 20210167056
    Abstract: A 3D semiconductor device, the device including: a first level, where the first level includes a first layer, the first layer including first transistors, and where the first level includes a second layer, the second layer including first interconnections; a second level overlaying the first level, where the second level includes a third layer, the third layer including second transistors, and where the second level includes a fourth layer, the fourth layer including second interconnections; and a plurality of connection paths, where the plurality of connection paths provides connections from a plurality of the first transistors to a plurality of the second transistors, where the second level is bonded to the first level, where the bonded includes oxide to oxide bond regions, where the bonded includes metal to metal bond regions, where the third layer includes crystalline silicon, and where the second level includes at least one phase-lock-loop (“PLL”) circuit.
    Type: Application
    Filed: February 6, 2021
    Publication date: June 3, 2021
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist
  • Publication number: 20210167201
    Abstract: A 3D semiconductor device including: a first level including a first single-crystal layer, a plurality of first transistors, and at least one metal layer, the metal layer overlaying the first single crystal layer with interconnects between the first transistors forming control circuits; a second level overlaying the metal layer, a plurality of second transistors, and a plurality of first memory cells including at least one of the second transistors; a third level overlaying the second level and including a plurality of third transistors, including second memory cells each including at least one third transistor, where at least one of the second memory cells is at least partially atop of the control circuits, where the control circuits are connected so to control second transistors and third transistors, where the second level is bonded to the third level, where the bonded includes oxide to oxide bonds; and a fourth level above the third level, including a second single-crystal layer.
    Type: Application
    Filed: February 15, 2021
    Publication date: June 3, 2021
    Applicant: Monolithic 3D Inc.
    Inventor: Zvi Or-Bach
  • Patent number: 11024673
    Abstract: A 3D semiconductor device, the device including: a first level including a single crystal layer, a first metal layer, a second metal layer above the first metal layer, and a third metal layer above the second metal layer, where the second metal layer is significantly thicker than either the third metal layer or the first metal layer, where the third metal layer is precisely aligned to the first metal layer with less than 20 nm misalignment; a second level including a first array of first memory cells, each of the first memory cells include first transistors; a third level including a second array of second memory cells, each of the second memory cells include second transistors, where the second level is above the third level, where the second transistors are self-aligned to the first transistors, being processed following the same lithography step; and periphery circuits connected by the second metal to control the memory cells, where the periphery circuits are either underneath or atop the memory cells.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: June 1, 2021
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist