Two-stage power noise filter with on and off chip capacitors

US6043724A · kind A · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Roland Frech · Esslingen am Neckar, DE
• Erich Klink · Schenefeld, DE
• William F. Shutler · Wappingers Falls, US
• Ulrich Weiss · Holzgerlingen, DE
• Thomas-Michael Winkel · Eppelheim, DE

Key dates

• Filing date: Jan 29, 1998
• Grant date: Mar 28, 2000
• Expiry date: Jan 29, 2018

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/15312
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Described is a novel implementation of a medium and high frequency on-module (off-chip)/on-chip power noise filter for power noise sensitive circuits. To achieve this, a second order low-pass approach is used. The first stage capacitor is located on-module (off-chip), and the second stage capacitor is implemented on-chip.