Title:
CONDUCTOR TRACK STRUCTURES AND METHOD FOR THE PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO2003005784
Kind Code:
A3
Abstract:
The invention relates to conductor tracks placed on an electrically non-conductive supporting material, which are comprised of metal nuclei and of a metallization subsequently applied thereto, whereby the metal nuclei are produced by using electromagnetic radiation to break up electrically non-conductive metal compounds contained in the supporting material in a dispersed manner. The invention also relates to a method for producing the conductor track structures themselves. The invention is characterized in that the electrically non-conductive metal compounds are formed from insoluble inorganic oxides, which are highly stable with regard to heat, stable in aqueous, acid or alkaline metallization baths, and which are higher oxides with the structure of the spinel or are simple d-metal oxides or mixtures thereof or mixed metal compounds that are similar to the spinel structures, and these metal compounds remain unchanged in non-radiated areas. The employed inorganic oxides are temperature-resistant whereby remaining stable after being subjected to soldering temperatures. The conductor tracks can be reliably and easily produced whereby obtaining a very high adhesive strength.
More Like This:
Inventors:
NAUNDORF GERHARD (DE)
WISSBROCK HORST (DE)
WISSBROCK HORST (DE)
Application Number:
PCT/DE2002/002219
Publication Date:
April 24, 2003
Filing Date:
June 19, 2002
Export Citation:
Assignee:
LPKF LASER & ELECTRONICS AG (DE)
NAUNDORF GERHARD (DE)
WISSBROCK HORST (DE)
NAUNDORF GERHARD (DE)
WISSBROCK HORST (DE)
International Classes:
C23C18/18; C23C18/16; C23C18/20; C23C18/38; H05K3/10; H05K3/18; (IPC1-7): H05K3/10
Foreign References:
| DE19723734A1 | 1998-12-10 | |||
| US4159414A | 1979-06-26 | |||
| DE19731346A1 | 1999-03-04 | |||
| US4604303A | 1986-08-05 | |||
| EP0340997A2 | 1989-11-08 | |||
| EP0180101A2 | 1986-05-07 |
Download PDF: