公开(公告)号：US06947267B2

公开(公告)日：2005-09-20

申请号：US09853591

申请日：2001-05-14

申请人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Tao-Cheng Lu

发明人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Tao-Cheng Lu

IPC分类号： H01L27/02 ,  H02H3/22

CPC分类号： H01L27/0292 ,  H01L27/0285

摘要： The present invention relates an electrostatic discharge (ESD) protection device that is applied to a mixed voltage circuit assembly. The device comprises a RC controlled circuit subassembly and a field transistor, which the RC controlled circuit is coupled with the mixed voltage circuit assembly to substantially control the ESD protection device to be ON or OFF. The field transistor is coupled between a first power supply and a second power supply of said mixed voltage circuit assembly, which is off on the condition of a normal operating condition and is conducting as an ESD event occurred.

摘要翻译： 本发明涉及一种应用于混合电压电路组件的静电放电（ESD）保护装置。 该装置包括RC控制电路子组件和场晶体管，RC控制电路与混合电压电路组件耦合，以基本上控制ESD保护装置的导通或截止。 场晶体管耦合在所述混合电压电路组件的第一电源和第二电源之间，所述第二电源在正常工作条件下处于关断状态，并且当ESD事件发生时导通。

公开(公告)号：US06933540B2

公开(公告)日：2005-08-23

申请号：US10606922

申请日：2003-06-27

申请人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Tao-Cheng Lu

发明人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Tao-Cheng Lu

IPC分类号： H01L27/02 ,  H01L29/72

CPC分类号： H01L27/0262 ,  H01L29/87

摘要： An ESD protection apparatus for dual-polarity input pad comprises a triple-well formed with a first, second and third regions to form an SCR structure. A first and second ground connection regions of opposite conductivity types are formed on the first region, a first and second input connection regions of opposite conductivity types are formed in the third region, and a bridge region is formed across the second region and extends to the first and third regions. Under normal operation, the first, second, and third regions form two back-to-back diodes. Under positive polarity ESD event, breakdown is occurred between the bridge and first regions to thereby trigger an SCR circuit for positive polarity ESD protection. Under negative polarity ESD event, breakdown is occurred between the bridge and third regions to thereby trigger an SCR circuit for negative polarity ESD protection.

摘要翻译： 用于双极性输入焊盘的ESD保护装置包括形成有第一，第二和第三区域以形成SCR结构的三阱。 在第一区域上形成有相反导电类型的第一和第二接地连接区域，在第三区域中形成相反导电类型的第一和第二输入连接区域，跨越第二区域形成桥接区域并延伸到 第一和第三区域。 在正常操作下，第一，第二和第三区域形成两个背对背二极管。 在正极性ESD事件下，在桥与第一区之间发生击穿，从而触发用于正极性ESD保护的SCR电路。 在负极性ESD事件下，桥和第三区之间发生击穿，从而触发用于负极性ESD保护的SCR电路。

公开(公告)号：US07193274B2

公开(公告)日：2007-03-20

申请号：US10854792

申请日：2004-05-27

申请人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Yen-Hung Yeh ,  Chia-Ling Lu ,  Tao-Cheng Lu

发明人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Yen-Hung Yeh ,  Chia-Ling Lu ,  Tao-Cheng Lu

IPC分类号： H01L29/72

CPC分类号： H01L27/0266

摘要： In an ESD protection structure and method utilizing substrate triggering for a high-voltage tolerant pad on a substrate, an ESD protection device has a source connected to the pad and a gate and a drain both connected to a ground, and a substrate-triggering control circuit is used to keep the substrate at a low voltage during a normal operation, and pumping the substrate to a high voltage during an ESD event for the ESD protection device to be triggered much easier. The substrate-triggering control circuit is implemented with an active device, thereby reducing the chip size for the circuit and the loading effect on the pad.

摘要翻译： 在ESD保护结构和方法中，利用衬底触发用于衬底上的高耐压焊盘，ESD保护器件具有连接到焊盘的源极和连接到地的栅极和漏极，以及衬底触发控制 电路用于在正常操作期间将衬底保持在低电压，并且在ESD事件期间将衬底泵送到高电压以使ESD保护器件被触发得更容易。 基板触发控制电路由有源器件实现，从而减小电路的芯片尺寸和对焊盘的负载效应。

公开(公告)号：US20060273399A1

公开(公告)日：2006-12-07

申请号：US11496490

申请日：2006-08-01

申请人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Yen-Hung Yeh ,  Chia-Ling Lu ,  Tao-Cheng Lu

发明人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Yen-Hung Yeh ,  Chia-Ling Lu ,  Tao-Cheng Lu

IPC分类号： H01L23/62

CPC分类号： H01L27/0266

摘要： In an ESD protection structure and method utilizing substrate triggering for a high-voltage tolerant pad on a substrate, an ESD protection device has a source connected to the pad and a gate and a drain both connected to a ground, and a substrate-triggering control circuit is used to keep the substrate at a low voltage during a normal operation, and pumping the substrate to a high voltage during an ESD event for the ESD protection device to be triggered much easier. The substrate-triggering control circuit is implemented with an active device, thereby reducing the chip size for the circuit and the loading effect on the pad.

公开(公告)号：US06661273B1

公开(公告)日：2003-12-09

申请号：US10225160

申请日：2002-08-22

申请人： Chun-Hsiang Lai ,  Meng-Huang Liu ,  Shin Su ,  Tao-Cheng Lu

发明人： Chun-Hsiang Lai ,  Meng-Huang Liu ,  Shin Su ,  Tao-Cheng Lu

IPC分类号： H03K508

CPC分类号： H01L27/0277 ,  H03K5/08

摘要： A substrate pump circuit and method for I/O ESD protection including NMOS fingers connected to the interconnection between an I/O pad and an internal circuit comprises a MOS device connected to the interconnection between the I/O pad and the internal circuit and the substrate under the control of a switch to turn it on to conduct a pumping current through the substrate resistor when the I/O pad is under ESD stress, so as to pull up the potential of the substrate adjacent to the NMOS fingers, resulting in the reduction of the triggering voltage of the NMOS fingers.

摘要翻译： 用于I / O ESD保护的衬底泵电路和方法，包括连接到I / O焊盘和内部电路之间的互连的NMOS指状包括连接到I / O焊盘和内部电路与衬底之间的互连的MOS器件 在I / O焊盘处于ESD应力下时，在开关控制下将其导通以通过衬底电阻器进行泵浦电流，从而上升与NMOS指状物相邻的衬底的电位，从而减少 的NMOS手指的触发电压。

公开(公告)号：US07573102B2

公开(公告)日：2009-08-11

申请号：US11496490

申请日：2006-08-01

申请人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Yen-Hung Yeh ,  Chia-Ling Lu ,  Tao-Cheng Lu

发明人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Yen-Hung Yeh ,  Chia-Ling Lu ,  Tao-Cheng Lu

IPC分类号： H01L29/72

CPC分类号： H01L27/0266

摘要： In an ESD protection structure and method utilizing substrate triggering for a high-voltage tolerant pad on a substrate, an ESD protection device has a source connected to the pad and a gate and a drain both connected to a ground, and a substrate-triggering control circuit is used to keep the substrate at a low voltage during a normal operation, and pumping the substrate to a high voltage during an ESD event for the ESD protection device to be triggered much easier. The substrate-triggering control circuit is implemented with an active device, thereby reducing the chip size for the circuit and the loading effect on the pad.

摘要翻译： 在ESD保护结构和方法中，利用衬底触发用于衬底上的高耐压焊盘，ESD保护器件具有连接到焊盘的源极和连接到地的栅极和漏极，以及衬底触发控制 电路用于在正常操作期间将衬底保持在低电压，并且在ESD事件期间将衬底泵送到高电压以使ESD保护器件被触发得更容易。 基板触发控制电路由有源器件实现，从而减小电路的芯片尺寸和对焊盘的负载效应。

公开(公告)号：US06965504B2

公开(公告)日：2005-11-15

申请号：US10304137

申请日：2002-11-26

申请人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Tao-Cheng Lu

发明人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Tao-Cheng Lu

IPC分类号： H01L27/02 ,  H02H3/20

CPC分类号： H01L27/0266 ,  H01L27/0255

摘要： An ESD protection apparatus for a high-voltage input pad comprises a modulator connected between the input pad and a snapback device with first and second guard rings surrounding the modulator, third guard ring surrounding the snapback device, and first and second guard ring control circuits to control the guard rings such that the protection apparatus has higher triggering and holding voltages under normal operation and lower triggering and holding voltages under ESD event.

摘要翻译： 用于高电压输入焊盘的ESD保护装置包括连接在输入焊盘和回弹装置之间的调制器，其具有围绕调制器的第一和第二保护环，围绕着快速恢复装置的第三保护环，以及第一和第二保护环控制电路 控制保护环，使保护装置在正常工作状态下具有较高的触发和保持电压，并在ESD事件下具有较低的触发和保持电压。

公开(公告)号：US06628488B2

公开(公告)日：2003-09-30

申请号：US09874339

申请日：2001-06-06

申请人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Tao-Cheng Lu

发明人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Tao-Cheng Lu

IPC分类号： H02H900

CPC分类号： H01L27/0292 ,  H01L27/0251

摘要： An electrostatic discharge (ESD) protection circuit is disclosed. This invention relates an electrostatic discharge protection circuit for multi-power and mixed-voltage integrated circuit. In the electrostatic discharge protection circuit of the invention, an ESD protection cell formed with voltage selector, control circuit and transistor is used to connect with a independent power and ESD bus is used to connect with each ESD protection cell so that each power is isolated from each other during normal operation. Therefore, each power can be operated independently and circuit will be prevented from ESD during ESD discharging.

公开(公告)号：US20050047036A1

公开(公告)日：2005-03-03

申请号：US10854792

申请日：2004-05-27

申请人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Yen-Hung Yeh ,  Chia-Ling Lu ,  Tao-Cheng Lu

发明人： Meng-Huang Liu ,  Chun-Hsiang Lai ,  Shin Su ,  Yen-Hung Yeh ,  Chia-Ling Lu ,  Tao-Cheng Lu

IPC分类号： H01L23/60 ,  H01L27/02 ,  H02H9/00

CPC分类号： H01L27/0266

摘要： In an ESD protection structure and method utilizing substrate triggering for a high-voltage tolerant pad on a substrate, an ESD protection device has a source connected to the pad and a gate and a drain both connected to a ground, and a substrate-triggering control circuit is used to keep the substrate at a low voltage during a normal operation, and pumping the substrate to a high voltage during an ESD event for the ESD protection device to be triggered much easier. The substrate-triggering control circuit is implemented with an active device, thereby reducing the chip size for the circuit and the loading effect on the pad.

摘要翻译： 在ESD保护结构和方法中，利用衬底触发用于衬底上的高耐压焊盘，ESD保护器件具有连接到焊盘的源极和连接到地的栅极和漏极，以及衬底触发控制 电路用于在正常操作期间将衬底保持在低电压，并且在ESD事件期间将衬底泵送到高电压以使ESD保护器件被触发得更容易。 基板触发控制电路由有源器件实现，从而减小电路的芯片尺寸和对焊盘的负载效应。

公开(公告)号：US06809915B2

公开(公告)日：2004-10-26

申请号：US10266572

申请日：2002-10-09

申请人： Chun-Hsiang Lai ,  Meng-Huang Liu ,  Shin Su ,  Tao-Cheng Lu

发明人： Chun-Hsiang Lai ,  Meng-Huang Liu ,  Shin Su ,  Tao-Cheng Lu

IPC分类号： H02H320

CPC分类号： H01L27/0274

摘要： A gate-equivalent-potential circuit and method for an I/O pad ESD protection arrangement including used and unused MOS fingers connected to the I/O pad comprises a switch connected between the gates of the MOS fingers, an ESD detector connected to the switch to turn on the switch upon an ESD event and a gate-modulated circuit connected to the gate of the unused finger to couple a voltage thereto to reduce the triggering voltage of the transistors within the fingers.

摘要翻译： 用于I / O焊盘ESD保护装置的栅极等效电位电路和方法包括连接到I / O焊盘的使用和未使用的MOS指状物，包括连接在MOS指状物的栅极之间的开关，连接到开关的ESD检测器 在ESD事件时接通开关，以及连接到未使用手指的栅极的栅极调制电路以将电压耦合到其中以减小手指内的晶体管的触发电压。