Electrostatic discharge (ESD) protection structure with symmetrical positive and negative ESD protection

US6906357B1 · kind B1 · utility

Assignee

• NATIONAL SEMICONDUCTOR CORPORATION · US

Inventors

• Vladislav Vashchenko · Palo Alto, US
• Marcel ter Beek · Pleasanton, US
• Peter J. Hopper · San Jose, US
• Ann Concannon · San Jose, US

Key dates

• Filing date: Oct 10, 2003
• Grant date: Jun 14, 2005
• Expiry date: Oct 10, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D89/711

Abstract

An apparatus including an electrostatic discharge (ESD) protection structure with a diac in which substancially similar ESD protection is provided for both positive and negative ESD voltages appearing at the circuit electrode sought to be protected.