Electrostatic discharge circuit for integrated circuit with multiple power domain
AssigneeFaraday Technology Corp.
InventorsFu-Yi Tsai, Ming-Dou Ker
Life of this patent
Estimating the term…
Abstract
An ESD protection circuit with multiple domains, which comprises: an ESD protection device, coupled between a first power supplying line and a first ground line; a first internal circuit, having a first terminal coupled to the first power supplying line; a first switch, coupled between a second terminal of the first internal circuit and a second ground line; and a first ESD detection circuit, coupled to the first switch, for detecting an ESD signal, and controls the first switch to be non-conductive when the ESD signal occurs.
Claims16
An ESD protection circuit with multiple domains, wherein the ESD protection circuit comprises:
- an ESD protection device coupled between a first power supplying line and a first ground line;
- a first internal circuit, having a first terminal coupled to the first power supplying line;
- a first switch, coupled between a second terminal of the first internal circuit and a second ground line;
- and
- a first ESD detection circuit, coupled to the first switch, for detecting an ESD signal, and controls the first switch to be non-conductive when the ESD signal occurs.
An integration circuit with rush current protection mechanism, comprising:
- a first circuit to be protected, having a first terminal coupled to a first power supplying line;
- a first switch, coupled between a second terminal of the first circuit to be protected and a second ground line;
- and
- a first rush current detection circuit, coupled to the first switch, for detecting an ESD signal, and controls the first switch to be non-conductive when the ESD signal occurs.
Dependencies are inferred from the claim text.