Field effect transistors having a fin

    公开(公告)号:US11462629B2

    公开(公告)日:2022-10-04

    申请号:US16519225

    申请日:2019-07-23

    Inventor: Toru Tanzawa

    Abstract: Transistors might include first and second semiconductor fins, a first source/drain region in the first semiconductor fin and extending downward from an uppermost surface of the first semiconductor fin, a second source/drain region in the second semiconductor fin and extending downward from an uppermost surface of the second semiconductor fin, a dielectric between the first and second semiconductor fins and adjacent to sidewalls of the first and second semiconductor fins, and a control gate over the dielectric and between the first and second semiconductor fins and extending to a level below upper surfaces of the first and second source/drain regions.

    INTERCONNECTIONS FOR 3D MEMORY
    92.
    发明申请

    公开(公告)号:US20220277777A1

    公开(公告)日:2022-09-01

    申请号:US17693871

    申请日:2022-03-14

    Inventor: Toru Tanzawa

    Abstract: Apparatuses and methods for interconnections for 3D memory are provided. One example apparatus can include a stack of materials including a plurality of pairs of materials, each pair of materials including a conductive line formed over an insulation material. The stack of materials has a stair step structure formed at one edge extending in a first direction. Each stair step includes one of the pairs of materials. A first interconnection is coupled to the conductive line of a stair step, the first interconnection extending in a second direction substantially perpendicular to a first surface of the stair step.

    SEMICONDUCTOR APPARATUS WITH MULTIPLE TIERS, AND METHODS

    公开(公告)号:US20220028891A1

    公开(公告)日:2022-01-27

    申请号:US17498503

    申请日:2021-10-11

    Inventor: Toru Tanzawa

    Abstract: Apparatus and methods are disclosed, including an apparatus that includes a number of tiers of a first semiconductor material, each tier including at least one access line of at least one memory cell and at least one source, channel and/or drain of at least one peripheral transistor, such as one used in an access line decoder circuit or a data line multiplexing circuit. The apparatus can also include a number of pillars of a second semiconductor material extending through the tiers of the first semiconductor material, each pillar including either a source, channel and/or drain of at least one of the memory cells, or a gate of at least one of the peripheral transistors. Methods of forming such apparatus are also described, along with other embodiments.

    RANDOM TELEGRAPH SIGNAL NOISE REDUCTION SCHEME FOR SEMICONDUCTOR MEMORIES

    公开(公告)号:US20210249089A1

    公开(公告)日:2021-08-12

    申请号:US17245275

    申请日:2021-04-30

    Inventor: Toru Tanzawa

    Abstract: Embodiments are provided that include a memory device having a memory array including a plurality of access lines and data lines. The memory device further includes a circuit coupled to the plurality of access lines and configured to provide consecutive pulses to a selected one of the plurality of access lines. Each pulse of the consecutive pulses includes a first voltage and a second voltage. The first voltage is greater in magnitude than the second voltage, and the first voltage is applied for a shorter duration than the second voltage.

    Apparatuses and methods for measuring an electrical characteristic of a model signal line and providing measurement information

    公开(公告)号:US10354030B2

    公开(公告)日:2019-07-16

    申请号:US16105571

    申请日:2018-08-20

    Inventor: Toru Tanzawa

    Abstract: Apparatuses and methods for measuring an electrical characteristic of a model signal line and providing measurement information based at least in part on the measurement of the electrical characteristic. An example apparatus includes a signal line model including a model signal line configured to model electrical characteristics of a signal line. The apparatus further includes a measurement circuit coupled to the signal line model and configured to measure the electrical characteristic of the model signal line responsive to an input signal provided to the model signal line. The measurement circuit is further configured to provide measurement information based at least in part on the measurement to set a signal applied to the signal line.

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