An aerosol production device comprises electric lines which supply electric signals to an actuator, where the actuator is soldered with a flexible substrate, and the flexible substrate surrounds the membrane, is a plate and printed circuit board/leader foil, is stickable together, pluggable and lockable/clampable with the reinforcement area (11), and has contact areas and reinforcement sections. An aerosol production device comprises electric lines which supply electric signals to an actuator. The actuator is soldered with the flexible substrate. The flexible substrate: surrounds the membrane; is a plate and printed circuit board/leader foil; is stickable together, pluggable and lockable/clampable with the reinforcement area (11); and has contact areas and reinforcement sections. The lines (conductive strips) and electrical components are arranged on the flexible substrate. An independent claim is also included for an inhalation therapy device.