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    • 5. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2011081886A
    • 2011-04-21
    • JP2009235487
    • 2009-10-09
    • Elpida Memory Incエルピーダメモリ株式会社
    • YOKO HIDEYUKI
    • G11C5/00H01L25/065H01L25/07H01L25/18
    • H03K19/018521G11C5/02G11C5/063H01L2224/16145H01L2924/01037H01L2924/01055H01L2924/15311H04L25/028H04L25/0292
    • PROBLEM TO BE SOLVED: To suppress a delay in the transmission of a signal in a laminated semiconductor device where a plurality of through-electrodes can selectively be used. SOLUTION: One interface chip IF is electrically connected with a plurality of core chips CC0 to CC7 via the plurality of through-electrodes. A data signal of a driver circuit 401 is inputted to the core chip CC7 via any of the through-electrode 301 or 302. An output switch circuit 190 selects a through-electrode by activating a try state inverter IVR1 or IVR2. The try state inverter amplifies the data signal and sends it to the through-electrode. Similarly, an input switch circuit 192 activates the try state inverter IVT1 or IVT2. The try state inverters also amplifies the data signal sent from the through-electrode and supplies it to a receiver circuit 411. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了抑制可以选择性地使用多个通孔的层叠半导体器件中的信号的传输延迟。 解决方案:一个接口芯片IF经由多个通孔与多个芯片CC0至CC7电连接。 驱动电路401的数据信号经由贯通电极301或302中的任一个被输入到芯片CC7。输出开关电路190通过激活试用状态转换器IVR1或IVR2来选择通孔。 试用状态反相器放大数据信号并将其发送到通孔。 类似地,输入开关电路192激活试用状态反相器IVT1或IVT2。 试用状态反相器还放大从通孔发送的数据信号并将其提供给接收器电路411.版权所有:(C)2011,JPO&INPIT
    • 6. 发明专利
    • Calibration circuit
    • 校准电路
    • JP2008135925A
    • 2008-06-12
    • JP2006319937
    • 2006-11-28
    • Elpida Memory Incエルピーダメモリ株式会社
    • YOKO HIDEYUKI
    • H03K19/0175H01L21/822H01L27/04H03K19/0948
    • G01R31/31713G11C29/02G11C29/022G11C29/028
    • PROBLEM TO BE SOLVED: To provide a calibration circuit which is capable of carrying out sufficient calibration operation even in the case where the frequency of an external clock is high. SOLUTION: The calibration circuit comprises: a first replica buffer 110 including the substantially same circuit configuration as a pull-up circuit constituting an output buffer; and a second replica buffer 130 including the substantially same circuit configuration as a pull-down circuit constituting the output buffer. When a first calibration command ZQCS is issued, both of control signals ACT1, ACT2 are activated to simultaneously perform calibration operations on the first and second replica buffers 110, 130. When a second calibration command ZQCL is issued, the control signals ACT1, ACT2 are alternately activated to alternately perform calibration operations on the first and second replica buffers 110, 130. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:即使在外部时钟的频率高的情况下,也能够提供能够执行足够的校准操作的校准电路。 校准电路包括:第一复制缓冲器110,其包括与组成输出缓冲器的上拉电路基本相同的电路配置; 以及第二复制缓冲器130,其包括与组成输出缓冲器的下拉电路基本相同的电路配置。 当发出第一校准命令ZQCS时,激活控制信号ACT1,ACT2同时对第一和第二复制缓冲器110,130执行校准操作。当发出第二校准命令ZQCL时,控制信号ACT1,ACT2为 交替地激活以在第一和第二复制缓冲器110,130上交替执行校准操作。版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2012175416A
    • 2012-09-10
    • JP2011035683
    • 2011-02-22
    • Elpida Memory IncHitachi Ulsi Systems Co Ltdエルピーダメモリ株式会社株式会社日立超エル・エス・アイ・システムズ
    • YOKO HIDEYUKIEGUCHI TAKANORIISHIMATSU MANABU
    • H03K19/0175
    • G11C29/022G11C29/028
    • PROBLEM TO BE SOLVED: To improve a reference potential generating circuit for use in a calibration circuit.SOLUTION: A semiconductor device comprises: a replica buffer 110 driving a calibration terminal ZQ; a reference potential generating circuit 200 generating a reference potential VREF; a comparator circuit 151 comparing a potential appearing at the calibration terminal ZQ with the reference potential VREF; and a control circuit 140 changing the output impedance of the replica buffer 110 based on the comparison result by the comparator circuit 151. The reference potential generating circuit 200 includes a potential generating section 210 activated in response to an enable signal EN and a potential generating section 220 activated regardless of the enable signal EN, and an output node of the potential generating section 210 and an output node of the potential generating section 220 are commonly connected to the comparator circuit 151. For this reason, the reference potential VREF can be correctly output before the enable signal EN is activated.
    • 要解决的问题:改进用于校准电路的参考电位产生电路。 解决方案:半导体器件包括:驱动校准端子ZQ的复制缓冲器110; 产生参考电位VREF的参考电位产生电路200; 将校准端子ZQ出现的电位与参考电位VREF进行比较的比较器电路151; 以及基于比较电路151的比较结果来改变复制缓冲器110的输出阻抗的控制电路140.参考电位产生电路200包括响应于使能信号EN而激活的电位产生部分210和电位产生部分 220被激活,而不管使能信号EN如何,电位产生部分210的输出节点和电位产生部分220的输出节点共同连接到比较器电路151.为此,可以正确地输出参考电位VREF 在使能信号EN被激活之前。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2011082449A
    • 2011-04-21
    • JP2009235490
    • 2009-10-09
    • Elpida Memory Incエルピーダメモリ株式会社
    • YOKO HIDEYUKISHIBATA KAYOKO
    • H01L25/065H01L25/07H01L25/18
    • H01L27/10897G11C5/04G11C5/063G11C29/12H01L22/22H01L23/481H01L25/0657H01L2224/16145H01L2225/06513H01L2225/06517H01L2225/06541H01L2225/06596
    • PROBLEM TO BE SOLVED: To properly maintain receiving-side signal quality, even when an external terminal for test is provided at a signal-receiving side in a stacked semiconductor device capable of selectively utilizing a plurality of through-electrodes. SOLUTION: One interface chip IF and a plurality of core chips CC0-CC7 are stacked, and the semiconductor chips are electrically connected by a plurality of through-electrodes. Data signal of a driver circuit 401 is inputted to the core chip CC7 via either of the through-electrodes 301 and 302. An output selector circuit 184 selects the through-electrode, by activating any of tristate inverters TI1 and IVR2. When a primary selector circuit 186 is to activate the inverter IVS, a test signal is supplied from a test pad TP to a receiver circuit 411. When the inverter IVS is to be activated, a data signal is supplied from any one of through-electrodes to the receiver circuit 411. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:即使在能够选择性地利用多个通孔的层叠半导体器件中的信号接收侧设置用于测试的外部端子的情况下,为了适当地维持接收侧的信号质量。 解决方案:一个接口芯片IF和多个核心芯片CC0-CC7被堆叠,并且半导体芯片通过多个通孔电连接。 驱动电路401的数据信号通过贯通电极301,302中的任一个输入到芯片CC7。输出选择电路184通过激活三态逆变器TI1,IVR2中的任意一个来选择贯通电极。 当主选择器电路186启动反相器IVS时,测试信号从测试焊盘TP提供给接收器电路411.当反相器IVS被激活时,数据信号从任一个通电极 到接收机电路411.版权所有(C)2011,JPO&INPIT