Conducting path structures situated on a non-conductive support material, especially fine conducting path structures and method for producing same

US6696173B1 · kind B1 · utility

Assignee

• LPKF LASER & ELECTRONICS AG · DE

Inventors

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

Key dates

• Filing date: Mar 22, 1999
• Grant date: Feb 24, 2004
• Expiry date: Mar 22, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2991
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Described are conductor track structures on a nonconductive support material, especially fine conductor track structures, which are comprised of a base containing a heavy metal and a metallized coating applied to this, and a method for their production. The invention is characterized in that the heavy metal base in the area of the conductor track structures contains heavy metal nuclei, which have been created by the breakup of an organic nonconductive heavy metal complex, and that the support material contains microporous or microrough support particles to which the heavy metal nuclei are bound. An outstanding strength of adhesion of the deposited metal conductor tracks is achieved. The method is especially suitable also for the production of three-dimensional circuit supports.