公开(公告)号：US20070012951A1

公开(公告)日：2007-01-18

申请号：US11425706

申请日：2006-06-22

申请人： Katsuhiro Kato ,  Atsushi Nagayama ,  Kenji Ichikawa

发明人： Katsuhiro Kato ,  Atsushi Nagayama ,  Kenji Ichikawa

IPC分类号： H01L27/10

CPC分类号： H01L27/0203 ,  H01L27/0266

摘要： An improved electrostatic discharge (ESD) protection structure that is suitable for use in a large-scale CMOS circuit fabrication technology is disclosed. When surge energy enters the first conductor during an ESD event, the surge current is conducted through the first contacts of the first MOS transistors, the second contacts of the first MOS transistors, the fourth conductor, and the third contacts of the second transistors. As each third contact is paired with each second contact, the surge current is conducted from a second contact to the paired third contact. Then, the surge current is conducted through the third contacts, fourth contacts, and the second conductor. In this operation, electric fields are generated in the direction of the first contacts, the second contacts, the fourth conductor, the third contacts, and the fourth contacts. Thus, the surge current is not conducted by way of the fifth conductor from a second contact to the other second contacts against the electric fields that are generated. Therefore, the surge current is only conducted from a second contact and the paired third contact. In other words, the surge current is dispersed, and is not conducted to a specific second contact.

摘要翻译： 公开了一种适用于大规模CMOS电路制造技术的改进的静电放电（ESD）保护结构。 当在ESD事件期间浪涌能量进入第一导体时，浪涌电流通过第一MOS晶体管的第一触点，第一MOS晶体管的第二触点，第四导体和第二晶体管的第三触点传导。 当每个第三触点与每个第二触点配对时，浪涌电流从第二触点传导到成对的第三触点。 然后，浪涌电流通过第三触点，第四触点和第二导体传导。 在此操作中，在第一触点，第二触点，第四导体，第三触点和第四触点的方向上产生电场。 因此，浪涌电流不是通过第五导体从第二接触到另一个第二接触抵抗所产生的电场而进行的。 因此，浪涌电流仅从第二触点和成对的第三触点传导。 换句话说，浪涌电流是分散的，不会传导到特定的第二接触。

公开(公告)号：US20070096793A1

公开(公告)日：2007-05-03

申请号：US11469907

申请日：2006-09-05

申请人： Katsuhiro Kato ,  Kenji Ichikawa ,  Atsushi Nagayama

发明人： Katsuhiro Kato ,  Kenji Ichikawa ,  Atsushi Nagayama

IPC分类号： H03H11/40

CPC分类号： H03K19/00315 ,  H01L27/0266

摘要： A semiconductor device includes first and second lines, a first transistor configured to electrically connect with the second line, and a second transistor configured to electrically connect the first line and the first transistor, the second transistor being turned ON when a bias voltage for operation is impressed between the first and second lines.

摘要翻译： 半导体器件包括第一和第二线，被配置为与第二线电连接的第一晶体管和被配置为电连接第一线和第一晶体管的第二晶体管，当操作偏置电压为第二晶体管时，第二晶体管导通 印在第一和第二行之间。

公开(公告)号：US06828821B2

公开(公告)日：2004-12-07

申请号：US10157239

申请日：2002-05-30

申请人： Atsushi Nagayama

发明人： Atsushi Nagayama

IPC分类号： H03K1923

CPC分类号： H03K19/00384

摘要： An input buffer circuit includes front stage circuits and a succeeding stage circuit. Each of the front stage circuits has a logic threshold voltage different from each other. The succeeding stage circuit has a P type MOS transistor and an N type MOS transistor connected in series. The succeeding circuit includes inputs connected to the front stage circuit. A logic threshold voltage of the succeeding stage circuit is set to be between the respective logic threshold voltages of the front stage circuits.

摘要翻译： 输入缓冲电路包括前级电路和后级电路。 每个前级电路具有彼此不同的逻辑阈值电压。 后级电路具有串联连接的P型MOS晶体管和N型MOS晶体管。 后续电路包括连接到前级电路的输入。 后级电路的逻辑门限电压被设定在前级电路的各自的逻辑阈值电压之间。

公开(公告)号：US07573314B2

公开(公告)日：2009-08-11

申请号：US12140553

申请日：2008-06-17

申请人： Atsushi Nagayama

发明人： Atsushi Nagayama

IPC分类号： H03L5/00

CPC分类号： H03K19/0016 ,  H03K3/35613

摘要： The present invention provides a level shift circuit that can reliably cut off the path of a through current regardless of the state of supply of power to plural circuit sections that operate by different power supplies. The level shift circuit is provided with an input circuit section that operates by a power supply voltage VDD1 and an output circuit section that operates by a power supply voltage VDD2. An inverter circuit, which operates by the power supply voltage VDD1 and converts a control signal that is inputted from the output circuit section, is disposed in the input circuit section. The output of the inverter circuit is used as the output of another inverter circuit that operates by the power supply voltage VDD2 of the output circuit section and as the control signal of the input circuit section.

摘要翻译： 本发明提供了一种能够可靠地切断通过电流的路径的电平移位电路，而与通过不同电源操作的多个电路部分的电力供应状态无关。 电平移位电路设置有由电源电压VDD1操作的输入电路部分和由电源电压VDD2操作的输出电路部分。 通过电源电压VDD1进行动作并将从输出电路部输入的控制信号变换的逆变器电路配置在输入电路部中。 逆变器电路的输出用作通过输出电路部分的电源电压VDD2工作的另一个逆变器电路的输出，并作为输入电路部分的控制信号。