Managing Heat Loss Around a Kapton Heater for More Stable Operation

https://heater-design-center.capitaljays.com/posts/where-a-mica-heating-plate-can-be-used-in-industrial-machinery

In precision instruments, a kapton heater must deliver heat in a controlled way. It uses a resistive foil circuit laminated within polyimide film. One useful trait is custom circuit patterns. Still, hot spots can change the result