There is provided an aerosol-generating device (10) comprising an electrical power supply (40), a cavity (14) for receiving an aerosol-generating article (50； 60), and a plurality of semiconductor heaters (22) positioned within the cavity (14). Each semiconductor heater (22) comprises a substrate layer (32) and a heating layer (36) provided on the substrate layer (32), wherein the heating layer (36) is a continuous layer. The aerosol-generating device (10) further comprises a controller (42) configured to control a supply of electrical power from the electrical power supply (40) to each of the semiconductor heaters (22).
