Planning Lead Wires and Connection Points for a Polyimide Heater
https://engineered-heater-lab.lucialpiazzale.com/polyimide-heater-basics-how-thin-film-heating-elements-work
In precision electronics, a polyimide heater must deliver heat in a controlled way. It uses a patterned resistive foil circuit insulated by polyimide film. One useful trait is custom shapes. Still, excess watt density can change the result