Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 26, 2006
Patent Application Number
11319252
Date Filed
December 27, 2005
Patent Primary Examiner
Patent abstract
An ESD protection circuit includes: a first metal oxide semiconductor (MOS) transistor discharging an excessive electrostatic current generated between an input pad and an internal circuit, and having a first terminal connected to a ground voltage supply terminal; and a second MOS transistor discharging an electrostatic current generated between the input pad and the internal circuit, and having a gate and a first terminal connected to a bulk terminal of the first MOS transistor. The first terminal is connected to the ground voltage supply terminal through an interconnection line having a parasitic resistance with a predetermined value.
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