Design structure for uniform triggering of multifinger semiconductor devices with tunable trigger voltage

US7714356B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Michel J. Abou-Khalil · South Burlington, US
• Robert J. Gauthier, Jr. · South Burlington, US
• Hongmei Li · Hackettstown, US
• Junjun Li · Williston, US
• Souvick Mitra · South Burlington, US
• Christopher S. Putnam · South Burlington, US

Key dates

• Filing date: Oct 31, 2007
• Grant date: May 11, 2010
• Expiry date: Apr 24, 2028

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D84/811

Abstract

A design structure for a circuit providing the same trigger voltage across the multiple fingers is provided, which comprises a data representing an external current injection source connected to individual fingers of a multi-finger semiconductor device. For example, the external injection current is supplied to the body of a MOSFET or the gate of a thyristor. The magnitude of the supplied current from each external current injection source is adjusted so that each finger has the same trigger voltage. The external current supply circuit may comprise diodes or an RC triggered MOSFET. The components of the external current supply circuit may be tuned to achieve a desired predetermined trigger voltage across all fingers of the multi-finger semiconductor device.