Passive electrical component with coating to improve the loading capacity

US11646148B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Dirk Salz · Bremen, DE
• Ralph Wilken · Rastede, DE
• Stefan Dieckhoff · Lilienthal, DE
• Malte Burchardt · Bremen, DE
• Christopher Dölle · Delmenhorst, DE
• Christoph Regula · Bremen, DE
• Franz-Josef Wöstmann · Bremen, DE

Key dates

• Filing date: Aug 4, 2017
• Grant date: May 9, 2023
• Expiry date: Aug 23, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05D2350/63
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The invention relates to a passive electrical component, especially a coil, having an interlayer, wherein the interlayer has a lower coefficient of thermal expansion than the surface of the passive electrical component covered with the interlayer, and disposed atop that a plasma-polymeric carbon-containing coating having a carbon content measured at a depth of 80 nm away from the side of the plasma-polymeric coating remote from the interlayer, wherein the plasma-polymeric coating comprises a carbon content of 50 to 100 atom %, preferably 50 to 90 atom %, or is configured as an organometallic coating a carbon content of 2 to 50 atom %, in each case measured by means of XPS.