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    • 4. 发明公开
    • READ-WRITE METHOD AND MEMORY DEVICE
    • EP3964941A1
    • 2022-03-09
    • EP20928575.8
    • 2020-11-11
    • Changxin Memory Technologies, Inc.
    • NING, ShuliangHE, JunYING, ZhanLIU, Jie
    • G06F3/06
    • A method for reading and writing and a memory device are provided. The method includes: applying a read command to the memory device, the read command pointing to address information; reading data to be read out from a memory cell corresponding to the address information pointed to by the read command; storing the address information pointed to by the read command into a memory bit of a preset memory space if an error occurs in the data to be read out, where the preset memory space is provided with a plurality of memory bits, each of the plurality of memory bits being associated with a respective spare memory cell; and backing up the address information stored in the preset memory space into a non-volatile memory cell according to a preset rule. Address information corresponding to an invalid memory cell is differentiated, in real time, from address information corresponding to a valid memory cell, and the invalid memory cell is replaced by the spare memory cell, thereby greatly improving the reliability of the memory device and prolonging the lifespan of the memory device. In addition, the address information stored in the preset memory space is backed up into a non-volatile memory cell according to a preset rule, thereby greatly increasing a running speed of the memory device.
    • 7. 发明公开
    • MEMORY ADJUSTMENT METHOD AND SYSTEM, AND SEMICONDUCTOR DEVICE
    • EP4089679A1
    • 2022-11-16
    • EP21859939.7
    • 2021-07-13
    • Changxin Memory Technologies, Inc.
    • NING, Shu-LiangHE, JunYING, ZhanLIU, Jie
    • G11C11/401G11C7/04
    • Embodiments of the disclosure, there is provided a method, a system for adjusting the memory, and a semiconductor device. The method for adjusting the memory includes: acquiring a mapping relationship between a temperature of a transistor, an equivalent width-length ratio of a sense amplifier transistor in a sense amplifier and an actual time at which the data is written into the memory; acquiring a current temperature of the transistor; and adjusting the equivalent width-length ratio, based on the current temperature and the mapping relationship, so that the actual time at which the data is written into the memory corresponding to the adjusted equivalent width-length ratio is within a preset writing time. Since the temperature may affect the actual time at which the data is written into the memory, the mapping relationship between the temperature of the transistor, the equivalent width-length ratio and the actual time at which the data is written into the memory is acquired firstly. And then, the actual time at which the data is written into the memory is acquired according to the current temperature of the transistor, and the actual time at which the data is written into the memory of the transistor at the current temperature is adjusted by adjusting the equivalent width-length ratio of the sense amplifier transistor in the sense amplifier.
    • 10. 发明公开
    • READ-WRITE METHOD AND MEMORY DEVICE
    • EP3936996A1
    • 2022-01-12
    • EP20928031.2
    • 2020-11-09
    • Changxin Memory Technologies, Inc.
    • NING, ShuliangHE, JunYING, ZhanLIU, Jie
    • G06F3/06
    • The embodiments provide a method for reading and writing and a memory device. The method includes: applying a read command to the memory device, the read command pointing to address information; reading data to be read out from a memory cell corresponding to the address information pointed to by the read command; and storing the address information pointed to by the read command into a preset memory space if an error occurs in the data to be read out, and backing up the address information stored in the preset memory space into a non-volatile memory cell according to a preset rule. The present disclosure has advantages as below. Address information corresponding to a memory cell with data error is differentiated from address information corresponding to a memory cell without data error by using the preset memory space, the reliability of the memory device can be greatly improved, and the lifespan of the memory device can be prolonged. In addition, the address information stored in the preset memory space is backed up into the non-volatile memory cell according to the preset rule, to serve as a basis for the subsequent read/write operation, which greatly increases a running speed of the memory device.