Semiconductor device

Abstract

A semiconductor device includes a semiconductor stack and a reflective structure. The semiconductor stack includes a low mesa, a high mesa protruding from the low mesa The high mesa includes an active structure and has a first upper surface and a first side surface, and the low mesa has a second upper surface and a second side surface. The reflective structure covers the first upper surface, the first side surface, the second upper surface, and the second side surface. The reflective structure includes a first insulating layer, a second insulating layer, and a metal layer between the first insulating layer and the second insulating layer, and the reflective structure has an opening from which the light emitted by the active structure outputs.

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