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    • 9. 发明申请
    • Method of erasing data in flash memory device
    • 擦除闪存设备中数据的方法
    • US20100118613A1
    • 2010-05-13
    • US12458502
    • 2009-07-14
    • Jin-young ChunJae-yong Jeong
    • Jin-young ChunJae-yong Jeong
    • G11C16/14G11C16/04G11C29/00G11C16/06
    • G11C16/16G11C16/344G11C16/3445
    • A method of erasing data in a flash memory device, including erasing data in at least one flash memory cell using a first erase voltage; detecting whether the at least one flash memory cell has a threshold voltage less than a first voltage; programming the at least one flash memory cell by varying the threshold voltage of the at least one flash memory cell using a second voltage that is greater than the first voltage if the detecting step detects the threshold voltage is less than the first voltage; maintaining the threshold voltage of the at least one flash memory cell if the detecting step detects the threshold voltage is greater than the first voltage; and verifying the at least one flash memory cell using a first verification voltage.
    • 一种擦除闪速存储器件中的数据的方法,包括使用第一擦除电压擦除至少一个闪存单元中的数据; 检测所述至少一个闪存单元是否具有小于第一电压的阈值电压; 如果所述检测步骤检测到所述阈值电压小于所述第一电压,则使用大于所述第一电压的第二电压改变所述至少一个闪存单元的阈值电压来对所述至少一个闪存单元进行编程; 如果所述检测步骤检测到所述阈值电压大于所述第一电压,则保持所述至少一个闪存单元的阈值电压; 以及使用第一验证电压验证所述至少一个闪存单元。