Invention Grant
US07880190B2 Combined semiconductor device, LED print head, and image forming apparatus 有权
组合半导体器件,LED打印头和成像设备

Combined semiconductor device, LED print head, and image forming apparatus
Abstract:
A combined semiconductor apparatus has a substrate, a thin semiconductor film attached directly or indirectly to one major surface of the substrate, and a lens attached to the opposite surface of the substrate. The thin semiconductor film includes a light-emitting element that emits light through the substrate. After passing through the substrate, the emitted light is focused by the lens. The substrate functions as a spacing element, assuring that the lens is positioned at the correct distance from the light-emitting element without the need for separate alignment. The substrate also holds the lens without the need for a separate lens holder. Driving circuitry may also be formed on the substrate.
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