Invention Grant
US09218887B2 Nonvolatile semiconductor memory device capable of improving retention/disturb characteristics of memory cells and method of operating the same 有权
能够改善存储单元的保持/干扰特性的非易失性半导体存储器件及其操作方法

  • Patent Title: Nonvolatile semiconductor memory device capable of improving retention/disturb characteristics of memory cells and method of operating the same
  • Patent Title (中): 能够改善存储单元的保持/干扰特性的非易失性半导体存储器件及其操作方法
  • Application No.: US14186665
    Application Date: 2014-02-21
  • Publication No.: US09218887B2
    Publication Date: 2015-12-22
  • Inventor: Sung Wook Jung
  • Applicant: SK HYNIX INC.
  • Applicant Address: KR Icheon-Si, Gyeonggi-Do
  • Assignee: SK HYNIX INC.
  • Current Assignee: SK HYNIX INC.
  • Current Assignee Address: KR Icheon-Si, Gyeonggi-Do
  • Agency: Hauptman Ham, LLP
  • Priority: KR10-2013-0115521 20130927
  • Main IPC: G11C16/24
  • IPC: G11C16/24 G11C16/34 G11C16/04
Nonvolatile semiconductor memory device capable of improving retention/disturb characteristics of memory cells and method of operating the same
Abstract:
A semiconductor memory device includes a memory cell array configured to store data; peripheral circuits configured to perform program verifying operation, read operation, and erase verifying operation on the memory cell array; and a control circuit configured to control the peripheral circuits, wherein the control circuit is configured to control the peripheral circuits to set a bit line voltage in the program verifying operation to have a higher level than a bit line voltage in the read operation, and a bit line voltage in the erase verifying operation to have a lower level than the bit line voltage in the read operation.
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