A Practical OEM Checklist for Specifying a Kapton Heater

https://industrial-heat-guide.westhavenscope.com/posts/wafer-heater-materials-and-construction-what-engineers-should-know

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