Patents by Inventor MARK DOUGLAS HALL
MARK DOUGLAS HALL 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).
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Publication number: 20250089359Abstract: A semiconductor device and fabrication method are described for integrating a nanosheet transistor with a multimodal transistor (MMT) in a single nanosheet process flow by processing a wafer substrate to form buried metal source/drain structures in an MMT region that are laterally spaced apart from one another and positioned below an MMT semiconductor channel layer before forming a transistor stack of alternating Si and SiGe layers in an FET region which are selectively processed to form gate electrode openings so that a first ALD oxide and metal layer are patterned and etched to form gate electrodes in the transistor stack and to form a channel control gate electrode over the MMT semiconductor channel layer, and so that a second oxide and conductive layer are patterned and etched to form a current control gate electrode over the MMT semiconductor channel layer and adjacent to the channel control gate electrode.Type: ApplicationFiled: September 11, 2023Publication date: March 13, 2025Applicant: NXP USA, Inc.Inventors: Mark Douglas Hall, Tushar Praful Merchant, Maryfe Hernandez, Anirban Roy
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Patent number: 12009267Abstract: A semiconductor device and fabrication method are described for integrating stacked top and bottom nanosheet transistors by providing a nanosheet transistor stack having bottom and top Si/SiGe superlattice structures (11-14, 17-20) which are separated from one another by a barrier oxide layer (15) and which are separately processed to form first remnant silicon germanium nanosheet layers (12, 14) in the bottom Si/SiGe superlattice structures having a first gate length dimension (DG1) and to form second remnant silicon germanium nanosheet layers (18, 20) in the top Si/SiGe superlattice structures having a second, smaller gate length dimension (DG2) so that the nanosheet transistor stack may then be processed to simultaneously form bottom and top gate electrodes which replace, respectively, the first and second remnant silicon germanium nanosheet layers.Type: GrantFiled: March 16, 2021Date of Patent: June 11, 2024Assignee: NXP B.V.Inventors: Tushar Praful Merchant, Mark Douglas Hall, Anirban Roy
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Patent number: 11776856Abstract: A semiconductor device and fabrication method are described for integrating stacked top and bottom nanosheet transistors by providing a nanosheet transistor stack having bottom and top Si/SiGe superlattice structures (11-14, 17-20) which are separated from one another by a barrier oxide layer (15) and which are separately processed to form bottom gate electrodes having a first gate structure (40A-B) in the bottom Si/SiGe superlattice structures and to form top gate electrodes having a second, different gate structure (46A-B) in the top Si/SiGe superlattice structures.Type: GrantFiled: March 25, 2021Date of Patent: October 3, 2023Assignee: NXP B.V.Inventors: Mark Douglas Hall, Tushar Praful Merchant, Anirban Roy
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Patent number: 11769797Abstract: A nanosheet semiconductor device and fabrication method are described for integrating the fabrication of nanosheet transistors (71) and capacitors/sensors (72) in a single nanosheet process flow by forming separate transistor and capacitor/sensor stacks (12A-16A, 12B-16B) which are selectively processed to form gate electrode structures (68A-C) which replace remnant SiGe sandwich layers in the transistor stack, to form silicon fixed electrodes using silicon nanosheets (13C, 15C) on a first side of the capacitor/sensor stack, and to form SiGe fixed electrodes using SiGe nanosheets (12C, 14C, 16C) from the middle of remnant SiGe sandwich layers in the capacitor/sensor stack (e.g., 16-2) which are separated from the silicon fixed electrodes by selectively removing top and bottom SiGe nanosheets (e.g., 16-1, 16-3) from the remnant SiGe sandwich layers in the capacitor/sensor stack.Type: GrantFiled: March 25, 2021Date of Patent: September 26, 2023Assignee: NXP B.V.Inventors: Tushar Praful Merchant, Mark Douglas Hall, Anirban Roy
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Publication number: 20230290862Abstract: A semiconductor device and fabrication method are described for forming a nanosheet transistor device by forming a nanosheet transistor stack (12-18, 25) of alternating Si and SiGe layers which are selectively processed to form metal-containing current terminal or source/drain regions (27, 28) and to form control terminal electrodes (36A-D) which replace the SiGe layers in the nanosheet transistor stack and are positioned between the Si layers which form transistor channel regions in the nanosheet transistor stack to connect the metal source/drain regions, thereby forming a nanosheet transistor device.Type: ApplicationFiled: March 11, 2022Publication date: September 14, 2023Applicant: NXP USA, Inc.Inventors: Mark Douglas Hall, Craig Allan Cavins, Tushar Praful Merchant, Asanga H. Perera
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Patent number: 11685647Abstract: A nanosheet MEMS sensor device and method are described for integrating the fabrication of nanosheet transistors (61) and MEMS sensors (62) in a single nanosheet process flow by forming separate nanosheet transistor and MEMS sensor stacks (12A-16A, 12B-16B) of alternating Si and SiGe layers which are selectively processed to form gate electrodes (49A-C) which replace the silicon germanium layers in the nanosheet transistor stack, to form silicon fixed electrodes using silicon layers (13B-2, 15B-2) on a first side of the MEMS sensor stack, and to form silicon cantilever electrodes using silicon layers (13B-1, 15B-1) on a second side of the MEMS sensor stack by forming a narrow trench opening (54) in the MEMS sensor stack to expose and remove remnant silicon germanium layers on the second side in the MEMS sensor stack.Type: GrantFiled: March 1, 2021Date of Patent: June 27, 2023Assignee: NXP B.V.Inventors: Mark Douglas Hall, Tushar Praful Merchant, Anirban Roy
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Patent number: 11616506Abstract: A circuit includes a P-channel transistor formed in a P-well and an N-channel transistor formed in an N-well. The first P-channel transistor has a control electrode connected to the P-well. The N-channel transistor is coupled in series with the P-channel transistor and has a control electrode connected to the N-well. Connecting the control electrodes of the P-channel and N-channel transistors to respective P-well and N-well effectively reduces crowbar current in the circuit.Type: GrantFiled: September 26, 2018Date of Patent: March 28, 2023Assignee: NXP USA, INC.Inventors: David Russell Tipple, Mark Douglas Hall
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Patent number: 11605729Abstract: A semiconductor device and fabrication method are described for integrating a nanosheet transistor with a capacitor or nonvolatile memory cell in a single nanosheet process flow by forming a nanosheet transistor stack (11-18) of alternating Si and SiGe layers which are selectively processed to form epitaxial source/drain regions (25A, 25B) and to form gate electrodes (33A-D) which replace the silicon germanium layers in the nanosheet transistor stack, and then selectively forming one or more insulated conductive electrode layers (e.g., 37/39, 25/55, 64/69) adjacent to the nanosheet transistor to define a capacitor or nonvolatile memory cell that is integrated with the nanosheet transistor.Type: GrantFiled: March 1, 2021Date of Patent: March 14, 2023Assignee: NXP B.V.Inventors: Mark Douglas Hall, Tushar Praful Merchant, Anirban Roy
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Publication number: 20220310786Abstract: A nanosheet semiconductor device and fabrication method are described for integrating the fabrication of nanosheet transistors (71) and capacitors/sensors (72) in a single nanosheet process flow by forming separate transistor and capacitor/sensor stacks (12A-16A, 12B-16B) which are selectively processed to form gate electrode structures (68A-C) which replace remnant SiGe sandwich layers in the transistor stack, to form silicon fixed electrodes using silicon nanosheets (13C, 15C) on a first side of the capacitor/sensor stack, and to form SiGe fixed electrodes using SiGe nanosheets (12C, 14C, 16C) from the middle of remnant SiGe sandwich layers in the capacitor/sensor stack (e.g., 16-2) which are separated from the silicon fixed electrodes by selectively removing top and bottom SiGe nanosheets (e.g., 16-1, 16-3) from the remnant SiGe sandwich layers in the capacitor/sensor stack.Type: ApplicationFiled: March 25, 2021Publication date: September 29, 2022Applicant: NXP B.V.Inventors: Tushar Praful Merchant, Mark Douglas Hall, Anirban Roy
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Publication number: 20220310456Abstract: A semiconductor device and fabrication method are described for integrating stacked top and bottom nanosheet transistors by providing a nanosheet transistor stack having bottom and top Si/SiGe superlattice structures (11-14, 17-20) which are separated from one another by a barrier oxide layer (15) and which are separately processed to form bottom gate electrodes having a first gate structure (40A-B) in the bottom Si/SiGe superlattice structures and to form top gate electrodes having a second, different gate structure (46A-B) in the top Si/SiGe superlattice structures.Type: ApplicationFiled: March 25, 2021Publication date: September 29, 2022Applicant: NXP B.V.Inventors: Mark Douglas Hall, Tushar Praful Merchant, Anirban Roy
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Publication number: 20220301936Abstract: A semiconductor device and fabrication method are described for integrating stacked top and bottom nanosheet transistors by providing a nanosheet transistor stack having bottom and top Si/SiGe superlattice structures (11-14, 17-20) which are separated from one another by a barrier oxide layer (15) and which are separately processed to form first remnant silicon germanium nanosheet layers (12, 14) in the bottom Si/SiGe superlattice structures having a first gate length dimension (DG1) and to form second remnant silicon germanium nanosheet layers (18, 20) in the top Si/SiGe superlattice structures having a second, smaller gate length dimension (DG2) so that the nanosheet transistor stack may then be processed to simultaneously form bottom and top gate electrodes which replace, respectively, the first and second remnant silicon germanium nanosheet layers.Type: ApplicationFiled: March 16, 2021Publication date: September 22, 2022Applicant: NXP B.V.Inventors: Tushar Praful Merchant, Mark Douglas Hall, Anirban Roy
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Publication number: 20220274828Abstract: A nanosheet MEMS sensor device and method are described for integrating the fabrication of nanosheet transistors (61) and MEMS sensors (62) in a single nanosheet process flow by forming separate nanosheet transistor and MEMS sensor stacks (12A-16A, 12B-16B) of alternating Si and SiGe layers which are selectively processed to form gate electrodes (49A-C) which replace the silicon germanium layers in the nanosheet transistor stack, to form silicon fixed electrodes using silicon layers (13B-2, 15B-2) on a first side of the MEMS sensor stack, and to form silicon cantilever electrodes using silicon layers (13B-1, 15B-1) on a second side of the MEMS sensor stack by forming a narrow trench opening (54) in the MEMS sensor stack to expose and remove remnant silicon germanium layers on the second side in the MEMS sensor stack.Type: ApplicationFiled: March 1, 2021Publication date: September 1, 2022Applicant: NXP B.V.Inventors: Mark Douglas Hall, Tushar Praful Merchant, Anirban Roy
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Publication number: 20220278226Abstract: A semiconductor device and fabrication method are described for integrating a nanosheet transistor with a capacitor or nonvolatile memory cell in a single nanosheet process flow by forming a nanosheet transistor stack (11-18) of alternating Si and SiGe layers which are selectively processed to form epitaxial source/drain regions (25A, 25B) and to form gate electrodes (33A-D) which replace the silicon germanium layers in the nanosheet transistor stack, and then selectively forming one or more insulated conductive electrode layers (e.g., 37/39, 25/55, 64/69) adjacent to the nanosheet transistor to define a capacitor or nonvolatile memory cell that is integrated with the nanosheet transistor.Type: ApplicationFiled: March 1, 2021Publication date: September 1, 2022Applicant: NXP B.V.Inventors: Mark Douglas Hall, Tushar Praful Merchant, Anirban Roy
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Patent number: 10727224Abstract: A semiconductor apparatus includes a first device cell and a second device cell. The first device cell includes a first active region including a first set of device fins, an insulator layer disposed over the first set of device fins, a first gate fin over the first set of fins, and a first edge fin disposed over a first edge of the first active region. The second device cell is adjacent the first device cell and includes a second active region including a second set of device fins, the insulator layer disposed over the second set of device fins, a second gate fin over the second set of device fins, and a second edge fin disposed over a second edge of the second active region. The first edge fin and the second edge fin are connected to a power rail, a ground rail, or to each other to define a capacitor between the first device cell and the second device cell.Type: GrantFiled: April 10, 2019Date of Patent: July 28, 2020Assignee: NXP USA, Inc.Inventors: David Russell Tipple, Mark Douglas Hall, Anis Mahmoud Jarrar
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Publication number: 20200099377Abstract: A circuit includes a P-channel transistor formed in a P-well and an N-channel transistor formed in an N-well. The first P-channel transistor has a control electrode connected to the P-well. The N-channel transistor is coupled in series with the P-channel transistor and has a control electrode connected to the N-well. Connecting the control electrodes of the P-channel and N-channel transistors to respective P-well and N-well effectively reduces crowbar current in the circuit.Type: ApplicationFiled: September 26, 2018Publication date: March 26, 2020Inventors: David Russell Tipple, Mark Douglas Hall
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Patent number: 10566268Abstract: A package to die connection system and method are provided. The system includes a semiconductor device having a substrate with a top surface. A gasket is affixed to the top surface of the substrate and has at least one cavity with a portion of the cavity open to a sidewall of the gasket. A semiconductor die is attached to the top surface of the substrate. A sidewall of the semiconductor die is abutted with the sidewall of the gasket. A portion of a metal layer is exposed to the open portion of the cavity. A pillar located in the cavity is electrically connected to the exposed portion of the metal layer.Type: GrantFiled: September 26, 2018Date of Patent: February 18, 2020Assignee: NXP USA, INC.Inventors: Mark Douglas Hall, Walter J. Ciosek, David Russell Tipple
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Patent number: 10242988Abstract: An integrated circuit (IC) system includes a substrate, a first doped well of a first polarity in the substrate, a first electrode in contact with the doped well, a buried oxide (BOX) in contact with the doped well in the substrate, a first IC device including a second electrode formed on the BOX, and fuse control circuitry coupled to the first electrode and the second electrode. The fuse control circuitry is configured to cause voltages to be applied to the first and second electrodes to change a resistance level of the BOX in the vicinity of the second electrode.Type: GrantFiled: August 23, 2017Date of Patent: March 26, 2019Assignee: NXP USA, Inc.Inventor: Mark Douglas Hall
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Publication number: 20190067304Abstract: An integrated circuit (IC) system includes a substrate, a first doped well of a first polarity in the substrate, a first electrode in contact with the doped well, a buried oxide (BOX) in contact with the doped well in the substrate, a first IC device including a second electrode formed on the BOX, and fuse control circuitry coupled to the first electrode and the second electrode. The fuse control circuitry is configured to cause voltages to be applied to the first and second electrodes to change a resistance level of the BOX in the vicinity of the second electrode.Type: ApplicationFiled: August 23, 2017Publication date: February 28, 2019Inventor: MARK DOUGLAS HALL