Patents Assigned to Monolithic 3D Inc.
  • Publication number: 20260231832
    Abstract: A 3D semiconductor device, the device including: a first level including a first single crystal layer, the first level including a plurality of first metal layers; a second level overlaying the plurality of first metal layers, the second level including a second single crystal layer, a plurality of transistors, and a plurality of second metal layers, where at least one of the plurality of transistors includes a metal gate, where the second single crystal layer thickness is less than 2 microns, where the plurality of transistors includes one or more transistors with a first Threshold Voltage (Vt1), where the plurality of transistors includes one or more transistors with a second Threshold Voltage (Vt2), and where Vt1 is greater than Vt2.
    Type: Application
    Filed: March 29, 2026
    Publication date: August 6, 2026
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist
  • Publication number: 20260229258
    Abstract: A 3D semiconductor device, the device including: a first level including a first single crystal silicon layer; a second level including single crystal transistors, where the first level is overlaid by the second level; a transferred layer and a bonded layer, where the second level is bonded to the first level, where the second level includes a thickness less than 2 microns, and where the second level includes a plurality of memory cells; and a digital-to-analog converter, where the second level includes at least four memory arrays, and where each of the at least four memory arrays is independently controlled.
    Type: Application
    Filed: March 24, 2026
    Publication date: August 6, 2026
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han
  • Publication number: 20260231441
    Abstract: A 3D device including: a first level including first transistors and a first interconnect; a second level including second transistors and overlaying the first level; power decoupling capacitors; at least four functional units (FCUs); where each FCU includes a first circuit which includes a portion of the first transistors, and includes a second circuit which includes a portion of the second transistors, and includes a vertical connectivity structure (VCS), the VCS includes a plurality of pillars which provides electrical control connection between the first circuit and the second circuit. Each of the FCUs includes at least one memory control circuit and at least one memory array. The second level is bonded to the first level and includes metal to metal bonding regions. A third transistor and a fourth transistor are electrically connected and are at least 50 mm apart.
    Type: Application
    Filed: March 27, 2026
    Publication date: August 6, 2026
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Brian Cronquist
  • Publication number: 20260214995
    Abstract: A 3D semiconductor device, the device including: a first level including logic circuits; a second level including a plurality of connectivity units, where the first level is overlaid by the second level, where each of the plurality of connectivity units includes at least one receiver circuit; and horizontally oriented transmission lines, where at least one of the plurality of connectivity units includes an Orthogonal Frequency Division Multiple Access (“OFDMA”) modulation circuit.
    Type: Application
    Filed: September 21, 2022
    Publication date: July 23, 2026
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Brian Cronquist
  • Patent number: 12684778
    Abstract: A 3D memory device including: a first structure 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, where the memory cell includes at least one charge trap structure, and where the at least one memory transistor is self-aligned to an overlaying another of the at least one memory transistor, both being processed following a same lithography step; and a control level including a memory controller circuit, where the control level includes a plurality of temperature sensors, where the control level is bonded to the first structure, and where the bonded includes hybrid bonding.
    Type: Grant
    Filed: December 27, 2024
    Date of Patent: July 14, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Eli Lusky
  • Patent number: 12666619
    Abstract: A 3D semiconductor device including: a first level including a single-crystal layer, a memory control-circuit including first transistors, a first metal layer, a second metal layer, a third metal layer; connection of the first transistors includes the first, and/or the second, and/or the third metal layer; a fourth metal layer disposed atop third transistors disposed atop second transistors disposed atop said first level; a memory array including word-lines, including at least four memory mini-arrays including at least four-rows-by-four-columns of memory cells, each of the memory cells includes at least one of the second transistors (at least one with a metal-gate) or at least one of the third transistors; a connection path from the fourth metal to the third metal including a via disposed through the memory array; a semiconductor die, including second transistors and at least one alignment mark positioned toward the die edge, disposed atop said first level.
    Type: Grant
    Filed: September 30, 2025
    Date of Patent: June 23, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han
  • Patent number: 12660326
    Abstract: A method to process a semiconductor device: processing the substrate forming a first level with a first single-crystal silicon-layer, first transistors, input-and-output (“IO”) circuits; forming a first metal-layer; forming a second metal-layer including a power-delivery network, where interconnection of the first transistors includes the first metal-layer and the second metal-layer; processing a second level including second transistors with metal gates and a first array of memory-cells; processing a third level including a plurality of third transistors with metal gates and a second array of memory-cells; third level disposed over the second level; forming a fourth metal-layer over a third metal-layer over the third-level; processing a fourth level including a second single-crystal silicon-layer, fourth level is disposed over the fourth metal-layer; forming a via disposed through the second and third levels, connections of the device to external devices includes the “IO”-circuits; the second level is dispos
    Type: Grant
    Filed: June 24, 2025
    Date of Patent: June 16, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist
  • Patent number: 12653021
    Abstract: A method for fabricating a semiconductor device comprising: forming a first level; disposing a second level on top of the first level; disposing a third level on top of the second level; forming a via connection through the second level and the third level, where the first level comprises first transistors, at least four independently controlled first memory arrays, and first filled holes therein, where the second level comprises second memory arrays and second filled holes therein, where disposing the third level comprises third transistors, a plurality of third memory arrays, and at least one metal layer therein; disposing a fourth level on top of the third level, where the fourth level comprises fourth transistors and at least one SRAM memory array therein; and bonding the fourth level to the third level via metal-to-metal bonding regions.
    Type: Grant
    Filed: July 27, 2025
    Date of Patent: June 9, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Brian Cronquist
  • Patent number: 12648143
    Abstract: A 3D semiconductor device including: a first level including a single crystal layer, a memory control circuit, a first metal layer, a second metal layer, and a third metal layer; connection of the first transistors comprises the first, and/or the second, and/or the third metal layer; a fourth metal layer disposed atop third transistors disposed atop second transistors disposed atop said first level; a memory array including word-lines and at least four memory mini arrays which include at least four rows by four columns of memory cells, each of the memory cells includes at least one of the second transistors (at least one with a metal gate) or at least one of the third transistors; a connection path from the fourth metal to the third metal including a via disposed through the memory array; the memory control circuit includes first transistors and voltage regulators.
    Type: Grant
    Filed: June 19, 2025
    Date of Patent: June 2, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han
  • Patent number: 12635163
    Abstract: Methods of making a 3D multilayer semiconductor device, including: providing a first substrate including a first level, the first level including a first single crystal silicon layer (SCSL); providing a second substrate including a second level, the second level including a second SCSL; performing an epitaxial growth of a SiGe layer on top of the second SCSL; performing an epitaxial growth of a third SCSL on top of the SiGe layer, the third SCSL has an average thickness of less than 2,000 nm; forming second transistors each including a single crystal channel, where forming the second transistors includes growth of a second SiGe layer on top of the third SCSL; forming many metal layers interconnecting the second transistors; and then performing a bonding of the second level onto the first level, where performing the bonding includes making oxide-to-oxide bond zones; and performing removal of a majority of the second SCSL.
    Type: Grant
    Filed: September 5, 2025
    Date of Patent: May 19, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han
  • Patent number: 12628430
    Abstract: A 3D device includes a first level including a first single crystal layer with control circuitry which includes first single crystal transistors; a first metal layer atop first single crystal layer; a second, third, and fourth metal layer providing connections between the first transistors; at least one second level (includes a plurality of second transistors including metal gates, and a plurality of memory cells) atop the first level; a fourth metal layer above the 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; a local power distribution grid, where the first level includes first Electrostatic Discharge (ESD) circuits, and the first single crystal transistors or second transistors include at least two FinFet transistors each having different threshold voltages.
    Type: Grant
    Filed: June 9, 2025
    Date of Patent: May 12, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist, Deepak Sekar
  • Publication number: 20260129877
    Abstract: An integrated semiconductor device including: a first level including single crystal silicon and logic circuits each include first transistors; a second level, disposed above the first level and includes arrays of first memory cells, where the second level includes a plurality of second transistors, where each of the first memory cells includes at least one of the second transistors, where the first level is bonded to the second level; an array of processors; a plurality of SerDes circuits; and a third level, where the third level includes a plurality of third transistors, where the third level is disposed above the second level and includes a plurality of arrays of second memory cells, where each of the second memory cells includes at least one of the third transistors, where the device includes a substrate having an area greater than 1,000 mm2, and where the substrate includes at least one interconnect.
    Type: Application
    Filed: November 18, 2025
    Publication date: May 7, 2026
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Brian Cronquist
  • Patent number: 12622014
    Abstract: A 3D semiconductor device, the device including: a first level including single crystal first transistors, a first metal layer, and a first isolation layer; a second level including second transistors and a second isolation layer, where the first level is overlaid by the second level; a third level including single crystal third transistors, where the second level is overlaid by the third level, where the third level includes a third isolation layer, and where the third level is bonded to the second level; a power delivery path to the second transistors, where at least a portion of the power delivery path is connected to at least one of the first transistors; and a plurality of capacitors, where the single crystal first transistors or the second transistors include at least two FinFet transistors, and where two of the at least two FinFet transistors have different threshold voltages (Vt).
    Type: Grant
    Filed: June 22, 2025
    Date of Patent: May 5, 2026
    Assignee: Monolithic 3D Inc.
    Inventor: Zvi Or-Bach
  • Patent number: 12622001
    Abstract: A 3D semiconductor device including: a first level including a first single crystal layer and a memory control circuit including first transistors and control circuit connectivity provided by first, second, and third metal layers; a second level including second transistors (one which includes a metal gate) disposed atop the first level; third transistors disposed atop second transistors with a fourth metal layer disposed atop; a memory array including word-lines, the memory array includes at least four memory mini arrays, where each mini array includes at least four rows by four columns of memory cells, and where each of the memory cells includes at least one of the second or third transistors; a connection path from the fourth metal to the third or second metal layer, which includes a via disposed through the second level, and where the memory control circuit includes at least one power down control circuit.
    Type: Grant
    Filed: June 20, 2025
    Date of Patent: May 5, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Brian Cronquist, Eli Lusky
  • Patent number: 12616073
    Abstract: A 3D semiconductor device including: a first level with first transistors, a single-crystal layer and at least one metal layer which includes interconnects between the first transistors forming first control circuits with a plurality of sense amplifiers; the first metal layer(s) overlaid by a second metal layer which is overlaid by a second level which includes first memory-cells which include second transistors with a metal-gate, overlaid by a third level which includes second memory cells which include third transistors which control the data written to second memory cells; a fourth metal layer overlaying a third metal layer which overlays the third level; where third transistor gate locations are aligned to second transistor gate locations within greater than 0.2 nm error, the first transistors or the second transistors comprise at least two FinFet transistors, and two of the FinFet transistors each have different threshold voltages.
    Type: Grant
    Filed: June 22, 2025
    Date of Patent: April 28, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist
  • Patent number: 12615784
    Abstract: A 3D semiconductor device, the device including: a first level including first single crystal transistors; a second level including second transistors; memory periphery circuits; and memory cells, where the first level is overlaid by the second level, where the first level includes a transferred layer and a bonded layer, where the second level is bonded to the first level, where the bonded second level includes oxide to oxide bonds, where the bonded second level includes metal to metal bonds, where the first level includes a preponderance of the memory periphery circuits, where the second level includes a preponderance of the memory cells, where the preponderance of the memory periphery circuits are connected to the preponderance of the memory cells using a portion of the metal to metal bonds, and where the memory periphery circuits include at least one Look up Table (“LUT”) circuit.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: April 28, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han
  • Publication number: 20260113945
    Abstract: A 3D semiconductor device including: a first level including a single-crystal layer, a memory control-circuit including first transistors, a first metal layer, a second metal layer, a third metal layer; connection of the first transistors includes the first, and/or the second, and/or the third metal layer; a fourth metal layer disposed atop third transistors disposed atop second transistors disposed atop said first level; a memory array including word-lines, including at least four memory mini-arrays including at least four-rows-by-four-columns of memory cells, each of the memory cells includes at least one of the second transistors (at least one with a metal-gate) or at least one of the third transistors; a connection path from the fourth metal to the third metal including a via disposed through the memory array; a semiconductor die, including second transistors and at least one alignment mark positioned toward the die edge, disposed atop said first level.
    Type: Application
    Filed: September 30, 2025
    Publication date: April 23, 2026
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han
  • Patent number: 12610563
    Abstract: A 3D device including: a first level including first transistors, a first interconnect; a second level including second transistors, the second level overlaying the first level and bonded to each other includes metal to metal bonding regions; at least four functional units each includes a first circuit which includes a portion of the first transistors; a redundancy circuit, where each of the at least four functional units includes a second circuit which includes a portion of the second transistors, and includes at least one memory control circuit and at least one memory array; where each of the at least four functional units includes a vertical connectivity structure which includes a plurality of pillars which provides electrical control connection between the first circuit and the second circuit; and a third transistor and a fourth transistor electrically connected to each other and are at least 100 mm apart.
    Type: Grant
    Filed: October 12, 2025
    Date of Patent: April 21, 2026
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han, Brian Cronquist
  • Publication number: 20260075821
    Abstract: A 3D semiconductor device including: a first level including a single crystal layer, a memory control circuit, a first metal layer, a second metal layer, and a third metal layer; connection of the first transistors comprises the first, and/or the second, and/or the third metal layer; a fourth metal layer disposed atop third transistors disposed atop second transistors disposed atop said first level; a memory array including word-lines and at least four memory mini arrays which include at least four rows by four columns of memory cells, each of the memory cells includes at least one of the second transistors (at least one with a metal gate) or at least one of the third transistors; a connection path from the fourth metal to the third metal including a via disposed through the memory array; the memory control circuit includes first transistors and voltage regulators.
    Type: Application
    Filed: June 19, 2025
    Publication date: March 12, 2026
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han
  • Publication number: 20260075952
    Abstract: A method to process a semiconductor device: processing the substrate forming a first level with a first single-crystal silicon-layer, first transistors, input-and-output (“IO”) circuits; forming a first metal-layer; forming a second metal-layer including a power-delivery network, where interconnection of the first transistors includes the first metal-layer and the second metal-layer; processing a second level including second transistors with metal gates and a first array of memory-cells; processing a third level including a plurality of third transistors with metal gates and a second array of memory-cells; third level disposed over the second level; forming a fourth metal-layer over a third metal-layer over the third-level; processing a fourth level including a second single-crystal silicon-layer, fourth level is disposed over the fourth metal-layer; forming a via disposed through the second and third levels, connections of the device to external devices includes the “IO”-circuits; the second level is dispos
    Type: Application
    Filed: June 24, 2025
    Publication date: March 12, 2026
    Applicant: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist