Special PCB Constraint-to-Evidence Matrix(Special PCB)

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Feature	Typical Special PCB Forms	What We Control
Thermal / Heat Spreading	Metal core, copper base, copper coin, thick copper power	Bonding integrity, flatness, thermal path continuity
High Voltage / Insulation	Slots, spacing strategy, edge treatment, protection	Creepage/clearance budgeting, cleanliness, edge integrity
Mechanical Integration	Cavity/step/counterbore, precision interfaces	Machining tolerance chain, burr control, edge robustness
Harsh Environment	Conformal coating, corrosion protection strategy	Ionic cleanliness, coating coverage logic

Special PCB Constraint-to-Evidence Matrix(Special PCB)

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