Samsung Electronics Co., Ltd.

Youngkyu Sung

Taehun Kim

Jae-Yoon Kim

Dongyeoul Lee

Suyeol Lee

Seungwan Chae

Dooho Jeong

Gamham Yong

Myunggoo Cheong

A semiconductor light emitting device package includes: a substrate; a first semiconductor layer including first regions including a first-type semiconductor material and having a first height, and a second region disposed between the first regions and having a second height lower than the first height; an active layer including disposed in the first regions, and emitting light of a predetermined wavelength band; a second semiconductor layer disposed on the active layer and formed of a second-type semiconductor material; a third semiconductor layer disposed on the second semiconductor layer, and formed of a second-type semiconductor material different from the second-type semiconductor material of the second semiconductor layer; a transparent electrode layer including disposed on the third semiconductor layer; and a reflective electrode layer electrically connected to the transparent electrode layer, respectively, and including portions overlapping the active layer in a vertical direction and a horizontal direction, respectively.

Semiconductor light emitting device package including reflective electrode pattern

A semiconductor light-emitting device includes a light-emitting structure including a first semiconductor layer, an active layer and a second semiconductor layer sequentially stacked. A connection electrode is positioned above the light-emitting structure. The connection electrode includes a connection metal layer electrically connected to at least one of the first and second semiconductor layers. A UBM pattern is on the connection electrode. A connection terminal is on the UBM pattern. The connection metal layer includes a first metal element. A heat conductivity of the first metal element is higher than that of gold (Au). The connection terminal includes a second metal element. A first reactivity of the first metal element with the second metal element is lower than a second reactivity of gold (Au) with the second metal element.

Semiconductor light-emitting device

Growing community of inventors

Hwaseong-si, South Korea

Youngkyu Sung