SEMICONDUCTOR STORAGE DEVICE
    3.
    发明公开

    公开(公告)号:US20240341074A1

    公开(公告)日:2024-10-10

    申请号:US18749271

    申请日:2024-06-20

    申请人: Socionext Inc.

    摘要: Nanosheets 21 to 23 are formed in line in this order in the X direction, and nanosheets 24 to 26 are formed in line in this order in the X direction. In a buried interconnect layer, a power line 11 is formed between the nanosheets 22 and 25 as viewed in plan. A face of the nanosheet 22 on a first side as one of the sides in the X direction is exposed from a gate interconnect 32. A face of the nanosheet 25 on a second side as the other side in the X direction is exposed from a gate interconnect 35.

    Three-port SRAM cell and layout method

    公开(公告)号:US12114473B2

    公开(公告)日:2024-10-08

    申请号:US17828123

    申请日:2022-05-31

    发明人: Jhon-Jhy Liaw

    摘要: Semiconductor devices are provided. A write port circuit is configured to perform a write function according to the write word line and the first and second write bit lines. The first read port circuit is configured to perform first read function according to the first read bit line and the first read word line. The second read port circuit is configured to perform second read function according to the second read bit line and the second read word line. The transistors of the first and second read port circuits share a first active structure extending in the first direction. The first read bit line and the second read bit line extend in the first direction in a first metallization layer, and the first write bit line and the second write bit line extend in the first direction in a second metallization layer over the first metallization layer.

    BITCELL PROCESS COMPENSATED READ ASSIST SCHEME FOR SRAM

    公开(公告)号:US20240331768A1

    公开(公告)日:2024-10-03

    申请号:US18619699

    申请日:2024-03-28

    IPC分类号: G11C11/419 G11C11/418

    CPC分类号: G11C11/419 G11C11/418

    摘要: An electronic device includes a memory and includes a plurality of word lines selectively driven by a decoder, with each pair of adjacent word lines having an underdrive circuit coupled therebetween. That underdrive circuit includes first and second transistors source/drain coupled in series with one another between the pair of adjacent word lines, the first and second transistors being replicas of a pull-down transistor and a pass gate transistor of bitcells the memory. One of the first and second transistors has its gate driven by a supply voltage and the other of the first and second transistor has its gate driven by a first read assist control signal.

    Memory with double redundancy
    8.
    发明授权

    公开(公告)号:US12094528B2

    公开(公告)日:2024-09-17

    申请号:US17833852

    申请日:2022-06-06

    CPC分类号: G11C11/419 G11C11/418

    摘要: A memory is provided with a plurality of column groups and two redundant column groups. If there are two defective columns in the plurality of column groups, the plurality of column groups may be divided into a no-shift region, a one-shift region, and a two-shift region. The memory includes a plurality of input/output circuits corresponding to the plurality of column groups. Each input/output circuit may provide a data input signal during a write operation and receive a data output signal during a read operation. Each input/output circuit also includes a switch matrix. In the no-shift region, the switch matrix couples the input/output circuit to a core in the corresponding column group. In the one-shift region, the switch matrix couples the input/output circuit to a core in a subsequent column group. In the two-shift region, the switch matrix couples the input/output circuit to a core in a next-to-subsequent column group.

    SEMICONDUCTOR MEMORY DEVICE AND CONTROL METHOD

    公开(公告)号:US20240304222A1

    公开(公告)日:2024-09-12

    申请号:US18670302

    申请日:2024-05-21

    发明人: Atsushi MOTOTANI

    IPC分类号: G11C5/14 G11C11/419

    CPC分类号: G11C5/148 G11C11/419

    摘要: A semiconductor memory device includes memory cells, a first power supply line, a second power supply line, a first transistor and a second transistor that are connected in parallel between the first power supply line and the second power supply line, and a control circuit. In accordance with a first signal for switching between a first mode and a second mode, the control circuit (i) switches off the first transistor and the second transistor in the period of the second mode and (ii) switches on the first transistor when switching from the second mode to the first mode is performed and switches on the second transistor after the first transistor is switched on, the first mode being a mode for supplying the power supply voltage to the memory cells, the second mode being a mode for not supplying the power supply voltage to memory cells.