Invention Grant
US08730731B2 Semiconductor memory device for compensating for operating voltage difference between near cell and far cell in consideration of cell position, and memory card and memory system including the same 有权
考虑到单元位置来补偿近单元和远单元之间的工作电压差的半导体存储器件,以及包括该单元位置的存储卡和存储器系统

  • Patent Title: Semiconductor memory device for compensating for operating voltage difference between near cell and far cell in consideration of cell position, and memory card and memory system including the same
  • Patent Title (中): 考虑到单元位置来补偿近单元和远单元之间的工作电压差的半导体存储器件,以及包括该单元位置的存储卡和存储器系统
  • Application No.: US12687949
    Application Date: 2010-01-15
  • Publication No.: US08730731B2
    Publication Date: 2014-05-20
  • Inventor: Ho Jung KimYoung Sun Song
  • Applicant: Ho Jung KimYoung Sun Song
  • Applicant Address: KR Suwon-si
  • Assignee: Samsung Electronics Co., Ltd.
  • Current Assignee: Samsung Electronics Co., Ltd.
  • Current Assignee Address: KR Suwon-si
  • Agency: Sughrue Mion, PLLC
  • Priority: KR10-2009-0003688 20090116
  • Main IPC: G11C11/34
  • IPC: G11C11/34
Semiconductor memory device for compensating for operating voltage difference between near cell and far cell in consideration of cell position, and memory card and memory system including the same
Abstract:
A semiconductor memory device is provided. The semiconductor memory device includes a memory cell array including a matrix of memory cells; a plurality of local bit lines divided into at least two local bit line groups arranged to be alternately connected with at least two global bit lines and coupled with the memory cells; a plurality of bit line selection drivers respectively connected to the local bit lines; an internal boosted voltage generator configured to generate at least two internal boosted voltages having different levels; and a power transmitter configured to respectively transmit the at least two internal boosted voltages to at least two bit line selection driver groups, into which the plurality of bit line selection drivers are classified according to arrangement of the local bit lines. Accordingly, repair efficiency can be increased and near-far compensation can be more correctly performed.
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