发明授权
- 专利标题: Semiconductor memory device and method of testing the same
- 专利标题(中): 半导体存储器件及其测试方法
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申请号: US11837722申请日: 2007-08-13
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公开(公告)号: US07791967B2公开(公告)日: 2010-09-07
- 发明人: Takahiro Suzuki , Shinya Fujisawa , Tokumasa Hara
- 申请人: Takahiro Suzuki , Shinya Fujisawa , Tokumasa Hara
- 申请人地址: JP Tokyo
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2006-221991 20060816
- 主分类号: G11C29/12
- IPC分类号: G11C29/12
摘要:
A semiconductor memory device includes a semiconductor memory, an auto-operation control circuit which outputs a clock signal, a sync read control circuit which outputs a sync read address in sync with the clock signal, a read control circuit which selects a read address of the semiconductor memory in accordance with an address of the sync read address, a read sense amplifier circuit which outputs a data read signal that is produced by sensing data that is read out of the semiconductor memory in accordance with the read address, and a determination circuit which compares the data read signal with an expectation value.