How Cutouts, Edges, and Openings Affect a PI Heater Layout

https://thermal-design-insights.brightpathdigest.com/posts/how-to-improve-heat-distribution-with-a-silicone-heater

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