Invention Grant
US08223564B2 Semiconductor storage device 有权
半导体存储设备

  • Patent Title: Semiconductor storage device
  • Patent Title (中): 半导体存储设备
  • Application No.: US12675069
    Application Date: 2009-02-27
  • Publication No.: US08223564B2
    Publication Date: 2012-07-17
  • Inventor: Tsuyoshi Koike
  • Applicant: Tsuyoshi Koike
  • Applicant Address: JP Osaka
  • Assignee: Panasonic Corporation
  • Current Assignee: Panasonic Corporation
  • Current Assignee Address: JP Osaka
  • Agency: McDermott Will & Emery LLP
  • Priority: JP2008-204734 20080807
  • International Application: PCT/JP2009/000902 WO 20090227
  • International Announcement: WO2010/016164 WO 20100211
  • Main IPC: G11C7/22
  • IPC: G11C7/22
Semiconductor storage device
Abstract:
A memory cell (100) includes a read circuit (30) whose output wiring is a read bit line (RBIT) and which has a switching transistor (31), a reset transistor (32), and an output wiring driving transistor (33). The switching transistor (31) connects a data holding node (MD) of a storage circuit (10) and a control line (DR) in accordance with a control signal on a read word line (/RWL0). The reset transistor (32) resets the control line (DR) in accordance with a reset control signal (RST). The output wiring driving transistor (33) has a gate connected to the control line (DR), a drain connected to the read bit line (RBIT), and a source connected to a ground power supply.
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