(under subclass 498) Subject matter in which the solid-state luminescent material is a semiconductor that emits light based on the principle of intrinsic luminescence, e.g., pn junction semiconductor type.
(1) Note. This subclass is limited to subject matter with only nominal recitation of a luminescent element, i.e., with no significant structural details thereof, but with recitation of details of a light modifier, envelope, encapsulation, header, or other peripheral feature.
SEE OR SEARCH CLASS
427, Coating Processes,
64+, for fluorescent or phosphorescent base coating, subclasses 74+ for a coating process to form a photoemissive element, and subclasses 77+ for a coating process to form an electron emissive element.
438, Semiconductor Device Manufacturing: Process, 29, for methods of making a semiconductor solid-state device having combined therewith a luminescent material layer.
