Patent ID: 9438031
Filing Date: 2016-09-06
CPC Classification: H01L,H02H,H02M,H05K

Claim Text:
1. An electrostatic discharge, ESD, protection circuit arrangement, said protection circuit arrangement being connectable to a first pin and a second pin of an electronic circuit and arranged to at least partly absorb an ESD current entering said electronic circuit through at least one of the first pin or the second pin during an ESD stress event, said protection circuit arrangement comprising: a first ESD protection circuit arranged to absorb a first portion of said ESD current during a first part of said ESD stress event during which first part a level of said ESD current exceeds a predetermined current threshold; and a second ESD protection circuit arranged to absorb a second portion of said ESD current, said second portion having a current level below said current threshold, at least during a second part of said ESD stress event, said second ESD protection circuit comprising a current limiting circuit arranged to limit a current through at least a portion of said second ESD protection circuit to said current threshold, wherein said second ESD protection circuit comprises a bridge circuit, said bridge circuit comprising one or more switching elements, each of the one or more switching elements comprising a switching terminal and two channel terminals.