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esd protection device

A technology for ESD protection and devices, applied in the direction of electric solid devices, semiconductor devices, electrical components, etc., can solve the problem of difficult assembly of lateral devices

Active Publication Date: 2017-11-10
NEXPERIA BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, standard discrete packages are often miniaturized, and lateral devices with two top terminal contacts can be very difficult to assemble for comparable miniaturized form factors

Method used

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Embodiment Construction

[0043] Figure 2a An equivalent circuit of the ESD protection device 10 is shown in . In general, the ESD protection device 10 may include an anode terminal A and a cathode terminal C. As shown in FIG. ESD protection device 10 can effectively be viewed as a PNP transistor 12 connected to an NPN transistor 14 . In this way, the ESD protection device 10 can be viewed as a silicon controlled rectifier (SCR).

[0044] Typically in known SCR device arrangements all areas are externally connected. The base and emitter terminals of the PNP transistor 12 and the collector terminal of the NPN transistor may be shorted by the anode terminal of the ESD protection device 10 .

[0045] Furthermore, the collector terminal of NPN transistor 14 may be connected to the base terminal of PNP transistor 12 . The emitter terminal of the NPN transistor may form the cathode terminal C of the ESD protection device 10 . R w may denote the spreading resistance of the collector of the PNP transist...

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Abstract

A semiconductor ESD protection device includes vertically arranged layers of alternating conductivity types, wherein the layers are arranged as silicon controlled rectifiers arranged as vertical devices and have opposing top and bottom contacts.

Description

technical field [0001] The present invention relates to ESD protection devices. In particular, the invention relates to high data rate interconnects including such protection devices. Background technique [0002] Electrical surges, such as electrical overstress or electrostatic discharge (ESD) transient pulses, are a common cause of damage to electronic devices. To protect against such transient surges, electronic devices are typically protected by surge or ESD protection devices. One type of protection device is a so-called transient voltage suppression (TVS) device. [0003] TVS devices provide protection against electrical overload or electrostatic discharge and are commonly used in portable, consumer electronic devices such as personal computers, audio and video instruments, or mobile phones. According to the International Electrotechnical Commission standard IEC61000-4-2, these devices should be protected from system level eg ESD stress. [0004] Where system-level...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/02
CPCH01L27/0262H01L29/0615H01L29/66371H01L29/732H01L29/7404H01L29/7412H01L29/87H01L2224/48091H01L2224/48464H01L2224/73265H01L2924/13091
Inventor 潘之昊斯蒂芬·霍兰德
Owner NEXPERIA BV