Laser-assisted generation of electronic circuits on tailored thermoplastics

Gerd Esser; Manfred Geiger

doi:10.1117/12.497590

3 March 2003 Laser assisted generation of electronic circuits on tailored thermoplastics

Gerd Esser, Manfred Geiger

Proceedings Volume 4831, First International Symposium on High-Power Laser Macroprocessing; (2003) https://doi.org/10.1117/12.497590
Event: LAMP 2002: International Congress on Laser Advanced Materials Processing, 2002, Osaka, Japan

Abstract

This paper describes the tailoring of thermoplastics and the laser assisted generation of active regions that catalyze a chemical metal deposition in a liquid plating solution on these thermoplastics. The plated regions may serve as an electronic circuit on the insulating thermoplastic substrate. Tailoring of the thermoplastic materials is achieved by addition of a special activator powder. This powder consists of micro-encapsulated catalytic core particles with a non-catalytic barrier layer on their surface. Different encapsulation methods are compared for a copper core material. Laser activation is examined using a cw CO₂ laser and an Nd:YAG laser. No activation is achieved with the CO₂ laser. With the Nd:YAG laser and suitable process parameters, activation is possible even at writing speeds of up to 650 mm/s. A qualitative model is presented that explains the basic mechanisms of the laser activation process.

Citation Download Citation

Gerd Esser and Manfred Geiger "Laser assisted generation of electronic circuits on tailored thermoplastics", Proc. SPIE 4831, First International Symposium on High-Power Laser Macroprocessing, (3 March 2003); https://doi.org/10.1117/12.497590

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