Conductor track structures and method for production thereof

US7060421B2 · kind B2 · utility

Assignee

• LPKF LASER & ELECTRONICS AG · DE

Inventors

• Gerhard Naundorf · Lemgo, DE
• Horst Wissbrock · Detmold, DE

Key dates

• Filing date: Jan 5, 2004
• Grant date: Jun 13, 2006
• Expiry date: Mar 23, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/256
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Conductive tracks disposed on an electrically non-conductive support material by depositing a metallized layer on metal nuclei produced by using electromagnetic radiation to break up electrically non-conductive metal compounds dispersed in the support material, and a method for producing them. The electrically non-conductive metal compounds are insoluble spinel-based inorganic oxides which are thermally stable and are stable in acidic or alkaline metallization baths, and which are higher oxides with a spinel structure, and which remain unchanged in non-irradiated areas. The spinel-based inorganic oxides used are heat resistant and remain stable after being subjected to soldering temperatures. The conductor tracks are reliably and easily produced and adhere strongly to the support.