Process for shielding an electric or electronic circuit and shielding cap

US6420649B1 · kind B1 · utility

Inventors

• Helmut Kahl · Berlin, DE
• Bernd Tiburtius · Kleinmachnow, DE

Key dates

• Filing date: May 18, 1999
• Grant date: Jul 16, 2002
• Expiry date: May 18, 2019

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05K9/0015
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A process is disclosed for screening a part of an electrical or electronic circuit, which part is surrounded by an electrically-conductive frame, from absorbing and/or emitting electromagnetic interference fields. The process comprises taking an electrically-conductive screening cap, with an open side bordered by a rim that contains a seating surface, and forming an elastic and electrically-conductive screening seal by directly applying the sealing compound to the seating surface in such a way that the screening seal projects beyond the seating surface. The screening cap is then placed with the screening seal on the electrically-conductive frame to fix the screening cap on the electrically-conductive frame.