³Ô¹Ïtv / ENGINEERING NOTEConstruction boundary: Bergquist vs FR-4 PCBCircuit copperElectrical dielectricMetal baseSeparate mounting interfaceHeat sourceHeat to boundaryLAYER ROLESExact grade and complete stackon both sides.Same heat source, mounting,sensor endpoints and interfacescope.Conceptual drawing. Not to scale; not manufacturing or compliance evidence.