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Abstract In this paper, the feasibility of laser ablated inductors of fractal design on flexible plastic substrate is demonstrated. Inductors are used to store energy during each switching cycle in… Click to show full abstract
Abstract In this paper, the feasibility of laser ablated inductors of fractal design on flexible plastic substrate is demonstrated. Inductors are used to store energy during each switching cycle in a switching voltage regulator circuit. Sierpinski fractal inductors of the second and the third iteration were designed, fabricated, and characterized. Two conductive materials, commercially available, were investigated – copper and aluminium adhesive tapes. The inductors are ablated with a current of 28.5 A, a frequency of 50 kHz and a speed of 1000 mm/s in five passes. High frequency parameters as inductance, quality factor, and resistance were analyzed. The inductors were characterized in the frequency range from 10 kHz to 1 GHz. Copper inductors showed better performances than aluminium inductors.
Journal Title: Microelectronic Engineering
Year Published: 2017
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