{"L1_core": {"domain": "thermal", "category": "heatsink", "entity_type": "component"}, "L2_thermal": {"function": "heat_transfer_component_to_ambient", "mounting": ["screw_thermal_paste", "clip_spring", "thermal_adhesive", "solder"], "materials": {"copper": {"density": 8.9, "thermal_W_mK": 385}, "graphite": {"density": 1.8, "thermal_W_mK": [300, 1500]}, "aluminum_1050": {"density": 2.7, "thermal_W_mK": 229}, "aluminum_6063": {"density": 2.7, "thermal_W_mK": 201}}, "standards": ["JEDEC JESD51", "IEC 60747"], "manufacturing": ["extruded", "machined", "skived", "bonded", "die_cast", "vapor_chamber"], "key_parameters": ["thermal_resistance_Rth", "dissipation_area", "fin_geometry", "airflow_required"]}, "L5_metadata": {"updated": "2026-01-02", "version": "2.0"}}