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    • 1. 发明授权
    • Semiconductor integrated circuit having active mode and standby mode converters
    • 具有主动模式和待机模式转换器的半导体集成电路
    • US06351179B1
    • 2002-02-26
    • US09375370
    • 1999-08-17
    • Tamio IkehashiYoshihisa SugiuraKenichi ImamiyaKen TakeuchiYoshihisa Iwata
    • Tamio IkehashiYoshihisa SugiuraKenichi ImamiyaKen TakeuchiYoshihisa Iwata
    • G05F110
    • G05F1/465
    • In order to avoid any malfunction for a temporary change in power supply voltage and suppress decrease in internal power supply voltage when transition is effected from the stand-by mode to the active mode, the disclosed semiconductor integrated circuit is provided with a detecting circuit which prevents malfunction in a temporary change in the power supply voltage from occurring by changing a detection level according to when the power supply voltage is increased or decreased. Further, a decrease in the internal power supply voltage immediately after the transition from the stand-by mode to the active mode is suppressed by employing a PMOS down converter in the stand-by mode and an NMOS down converter in the active mode, and setting an internal power supply voltage of the PMOS down converter in the stand-by mode higher than in the active mode. A down converter is formed in a lower layer of an external power supply line and peripheral circuit blocks are arranged in a lower layer of internal power supply lines on both sides of the external power supply line symmetrically with respect thereto, whereby a power supply distance of the power supply voltage is minimized and controllability of the internal power supply voltage is improved.
    • 为了避免暂时改变电源电压的任何故障,并且当从待机模式转换到主动模式时抑制内部电源电压的降低,所公开的半导体集成电路设置有防止 通过根据电源电压何时增加或减少来改变检测电平而发生电源电压暂时改变的故障。 此外,通过在待机模式中采用PMOS下变频器和在激活模式下的NMOS下变频器来抑制从待机模式转换到有功模式之后的内部电源电压的降低,并且设置 处于待机模式的PMOS下变频器的内部电源电压高于活动模式。 下变频器形成在外部电源线的下层中,并且外围电路块相对于其对称地布置在外部电源线的两侧的内部电源线的下层中,从而电源距离 电源电压最小化,内部电源电压的可控性提高。
    • 2. 发明授权
    • Semiconductor integrated circuit with a down converter for generating an internal voltage
    • 具有用于产生内部电压的降压转换器的半导体集成电路
    • US06590444B2
    • 2003-07-08
    • US10200152
    • 2002-07-23
    • Tamio IkehashiYoshihisa SugiuraKenichi ImamiyaKen TakeuchiYoshihisa Iwata
    • Tamio IkehashiYoshihisa SugiuraKenichi ImamiyaKen TakeuchiYoshihisa Iwata
    • G05F302
    • G05F1/465
    • In order to avoid any malfunction for a temporary change in power supply voltage and suppress decrease in internal power supply voltage when transition is effected from the stand-by mode to the active mode, the disclosed semiconductor integrated circuit is provided with a detecting circuit which prevents malfunction in a temporary change in the power supply voltage from occurring by changing a detection level according to when the power supply voltage is increased or decreased. Further, a decrease in the internal power supply voltage immediately after the transition from the stand-by mode to the active mode is suppressed by employing a PMOS down converter in the stand-by mode and an NMOS down converter in the active mode, and setting an internal power supply voltage of the PMOS down converter in the stand-by mode higher than in the active mode. A down converter is formed in a lower layer of an external power supply line and peripheral circuit blocks are arranged in a lower layer of internal power supply lines on both sides of the external power supply line symmetrically with respect thereto, whereby a power supply distance of the power supply voltage is minimized and controllability of the internal power supply voltage is improved.
    • 为了避免暂时改变电源电压的任何故障,并且当从待机模式转换到主动模式时抑制内部电源电压的降低,所公开的半导体集成电路设置有防止 通过根据电源电压何时增加或减少来改变检测电平而发生电源电压暂时改变的故障。 此外,通过在待机模式中采用PMOS下变频器和在活动模式中的NMOS下变频器来抑制从待机模式转换到有功模式之后的内部电源电压的降低,并且设置 处于待机模式的PMOS下变频器的内部电源电压高于活动模式。 下变频器形成在外部电源线的下层中,并且外围电路块相对于其对称地布置在外部电源线的两侧的内部电源线的下层中,从而电源距离 电源电压最小化,内部电源电压的可控性提高。
    • 3. 发明授权
    • Semiconductor integrated circuit
    • 半导体集成电路
    • US06801060B2
    • 2004-10-05
    • US10443820
    • 2003-05-23
    • Tamio IkehashiYoshihisa SugiuraKenichi ImamiyaKen TakeuchiYoshihisa Iwata
    • Tamio IkehashiYoshihisa SugiuraKenichi ImamiyaKen TakeuchiYoshihisa Iwata
    • H03K5153
    • G05F1/465
    • In order to avoid any malfunction for a temporary change in power supply voltage and suppress decrease in internal power supply voltage when transition is effected from the stand-by mode to the active mode, the disclosed semiconductor integrated circuit is provided with a detecting circuit which prevents malfunction in a temporary change in the power supply voltage from occurring by changing a detection level according to when the power supply voltage is increased or decreased. Further, a decrease in the internal power supply voltage immediately after the transition from the stand-by mode to the active mode is suppressed by employing a PMOS down converter in the stand-by mode and an NMOS down converter in the active mode, and setting an internal power supply voltage of the PMOS down converter in the stand-by mode higher than in the active mode. A down converter is formed in a lower layer of an external power supply line and peripheral circuit blocks are arranged in a lower layer of internal power supply lines on both sides of the external power supply line symmetrically with respect thereto, whereby a power supply distance of the power supply voltage is minimized and controllability of the internal power supply voltage is improved.
    • 为了避免暂时改变电源电压的任何故障,并且当从待机模式转换到主动模式时抑制内部电源电压的降低,所公开的半导体集成电路设置有防止 通过根据电源电压何时增加或减少来改变检测电平而发生电源电压暂时改变的故障。 此外,通过在待机模式中采用PMOS下变频器和在活动模式中的NMOS下变频器来抑制从待机模式转换到有功模式之后的内部电源电压的降低,并且设置 处于待机模式的PMOS下变频器的内部电源电压高于活动模式。 下变频器形成在外部电源线的下层中,并且外围电路块相对于其对称地布置在外部电源线的两侧的内部电源线的下层中,从而电源距离 电源电压最小化,内部电源电压的可控性提高。
    • 5. 发明授权
    • Multi-level nonvolatile semiconductor memory device
    • 多级非易失性半导体存储器件
    • US5986929A
    • 1999-11-16
    • US80250
    • 1998-05-18
    • Yoshihisa SugiuraTamio Ikehashi
    • Yoshihisa SugiuraTamio Ikehashi
    • G11C16/02G11C11/56G11C16/04G11C16/10G11C16/34G11C16/06
    • G11C7/1039G11C11/5621G11C11/5628G11C11/5642G11C16/0483G11C16/10G11C16/3454G11C16/3459G11C2211/5621G11C2211/5624G11C2211/5642
    • The threshold voltage distribution for write operation into memory cells of a multi-level nonvolatile semiconductor memory device is precisely controlled and the verify result of written data is simultaneously detected for each page. For example, at the "10" data write time, excess write of "00" data which is a conventional problem is inhibited by controlling a path for transferring a lower bit to a bit line according to an upper bit. Further, at the write-verify time, the verify result can be simultaneously detected for each page by controlling the verify operation according to the upper bit. At the write time of "01" data, the bit line path is controlled by use of the lower bit and the write operation of "00" data is inhibited. Also, at the write-verify time, the verify result can be simultaneously detected for each page by controlling the verify operation according to the lower bit. The write and verify operations of "00" data can be effected in the same manner as in the case of "01" data by first inverting the lower bit of "00" data. Since the write operation can be effected while all of the write states of a plurality of bits are verified, each level of written data can be precisely controlled without causing excess or insufficiency in the threshold voltage after the write operation into the memory cell. Further, since the verify result can be simultaneously detected for each page, time can be significantly reduced.
    • 对多级非易失性半导体存储器件的存储单元进行写操作的阈值电压分布被精确地控制,并且每一页同时检测写入数据的验证结果。 例如,在“10”数据写入时,通过根据高位控制用于将较低位传送到位线的路径来禁止作为常规问题的“00”数据的超量写入。 此外,在写入验证时间,通过根据高位控制验证操作,可以对每个页面同时检测验证结果。 在“01”数据的写入时间,通过使用低位来控制位线路径,并且禁止“00”数据的写入操作。 此外,在写验证时间,通过根据较低位控制验证操作,可以对每一页同时检测验证结果。 “00”数据的写入和验证操作可以通过首先反转“00”数据的较低位,以与“01”数据相同的方式进行。 由于可以在多个位的所有写入状态都被验证的同时进行写入操作,所以可以精确地控制每个级别的写入数据,而不会在对存储单元的写入操作之后导致阈值电压的过多或不足。 此外,由于可以同时检测每页的验证结果,因此可以显着地减少时间。
    • 10. 发明授权
    • Non-volatile semiconductor memory
    • 非易失性半导体存储器
    • US07636255B2
    • 2009-12-22
    • US11854048
    • 2007-09-12
    • Yoshihisa SugiuraTakashi Suzuki
    • Yoshihisa SugiuraTakashi Suzuki
    • G11C16/00
    • G11C16/349G11C16/0483G11C27/005
    • A non-volatile semiconductor memory is disclosed, which comprises a plurality of memory cell arrays each having a number-of-rewrites storage region allocated to a portion of a corresponding cell array, and a number-of-rewrites write control circuit which stores the number of rewrites in cell transistors of the number-of-rewrites storage regions in non-selected memory cell arrays of the plurality of memory cell arrays by executing write of data to the cell transistors at a voltage lower than an ordinary write voltage so as to change a threshold value of the cell transistors in analog fashion according to an amount of electrons injected into floating gates of the cell transistors.
    • 公开了一种非易失性半导体存储器,其包括多个存储单元阵列,每个存储单元阵列具有分配给相应单元阵列的一部分的重写数量的存储区域,以及存储重写数量的写入控制电路 通过以比普通写入电压低的电压执行数据写入到单元晶体管,在多个存储单元阵列的未选择的存储单元阵列中重写存储区域数量的单元晶体管中的重写次数,以便 根据注入到单元晶体管的浮置栅极的电子量,以模拟方式改变单元晶体管的阈值。