(under subclass 16.1) Subject matter including a conductive heat transfer device, e.g., a "heat sink", to conduct heat from the object being cooled to the air or other gaseous cooling medium.
SEE OR SEARCH CLASS
165, Heat Exchange,
80.3, and 185 for the structure of heat sinks, per se, not involving any electrical feature.
257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes), appropriate subclasses for active solid-state semiconductor devices, per se, especially
468, 625, 675, 706, 707, and 712-722 for such devices with cooling means.
361, Electricity: Electrical Systems and Devices, 386+, for heat sinks associated with plural electrical components.