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1 July 1991 Poly(bis-alkylthio-acetylen): a dual-mode laser-sensitive material
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Patterns of electrically conducting polymers (100 S cm-1) can be obtained by irradiating thin layers of insulating poly (bis-ethylthio-acetylene) (10-14 S cm-1) with 488 nm Ar+-laser or 351 nm XeF-excimer laser radiation. On the other hand this polymer is a suitable material for laser-induced ablation (photodecomposition), whereby this excimer laser patterned insulating polymer can be made conductive by another Ar+-laser afterwards. The conducting tracks have a stable resistivity both in air (without encapsulation) and in moisture at various temperatures and even in corrosive atmospheres. With these techniques, using a computer-controlled linear positioning system, printed microcircuit boards with integrated passive electronic components can be obtained. Surface mounted devices may be integrated into such circuitry using conductive adhesives.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Reinhard R. Baumann, Joachim Bargon, and Hans-Klaus Roth "Poly(bis-alkylthio-acetylen): a dual-mode laser-sensitive material", Proc. SPIE 1463, Optical/Laser Microlithography IV, (1 July 1991); doi: 10.1117/12.44831;

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