A BIODEGRADABLE CIRCUIT BOARD

摘要

A circuit board (100) comprising a substrate (110), a first at least partly electrically conductive layer (120), and a second at least partly electrically conductive layer (130), wherein the second at least partly electrically conductive layer (130) is arranged a distance apart from the first at least partly electrically conductive layer (120). The substrate (110) comprises polylactide and lignin. An electronic device comprising the circuit board. A substrate material granule (510) for manufacturing a substrate for a circuit board. A method for manufacturing the substrate material granules. A method for manufacturing the circuit board. Use of the substrate material granule (510) for manufacturing a circuit board (100) or an electronic device.