Monolithically integrated transformer

US6580334B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Werner Simburger · Haar, DE
• Hans-Dieter Wohlmuth · Munich, DE

Key dates

• Filing date: May 17, 2001
• Grant date: Jun 17, 2003
• Expiry date: May 17, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F2021/125
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A monolithic integrated transformer, especially for high frequency application in for example GSM-mobile components wherein a coupling factor is attained by using slotted windings and components introduced therein from another winding. The transformer can be produced according to standard silicon bipolar technology with three metallic layers. The production of the transformer do not involve any additional expenditures.