Fully integrated voltage regulators for multi-stack integrated circuit architectures

US9229466B2 · kind B2 · utility

Assignee

• Intel Corporation · US

Inventors

• Ruchir Saraswat · Swindon, GB
• Andre Schaefer · Hersbruck, DE
• Uwe Zillman · Braunschweig, DE
• Andreas Duevel · Bad Salzdetfurth, DE
• Valluri Rao · Saratoga, US
• Telesphor Kamgaing · Chandler, US
• Harish Krishnamurthy · Beaverton, US

Key dates

• Filing date: Dec 31, 2011
• Grant date: Jan 5, 2016
• Expiry date: Jul 16, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02M7/003
• WIPO field: Semiconductors
• WIPO sector: Electrical engineering

Abstract

A voltage regulator for one or more dies in a multi-stack integrated circuit includes an inductor located on a die, a voltage controller that is electrically coupled to the inductor and is also located on the die, and a capacitor that is electrically coupled to the inductor and the voltage controller and is also located on the die. The inductor defines an interior space and the voltage controller and the capacitor are located within the interior space of the inductor. The inductor can be a lateral inductor or a through layer via inductor. The multi-stack integrated circuit may have multiple dies. A voltage controller may be electrically coupled to each of the dies, although it may be located on only one of the dies. Alternatively, separate voltage controllers may be electrically coupled to each of the multiple dies and may be located on each of the respective dies.