PI Heater Prototyping: What to Review Before Finalizing the Design

https://engineered-thermal-hub.keystonescope.com/posts/how-low-outgassing-materials-matter-in-semiconductor-heater-applications

In sensors, a pi heater must deliver heat in a controlled way. It uses a thin resistive foil circuit laminated in polyimide film. One useful trait is fast response. Still, local hot spots can change the result