Protection device against electrostatic discharges

US6864538B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Stephan Mettler · Reutlingen, DE
• Wolfgang Wilkening · Pfullingen, DE

Key dates

• Filing date: Apr 14, 2001
• Grant date: Mar 8, 2005
• Expiry date: Sep 14, 2021

Classification

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

Abstract

An ESD protection device encompassing a vertical bipolar transistor that is connected as a diode and has an additional displaced base area. The assemblage has a space-saving configuration and a decreased difference between snapback voltage and breakdown voltage.