Uv light emitting diode package and light emitting diode module having the same

An ultraviolet light emitting diode (UV LED) module comprising

• a circuit board having first and second pads;
• and
• an UV LED package mounted on the circuit board, wherein the UV package comprises:
• an upper semiconductor layer;
• a mesa disposed under the upper semiconductor layer, having an inclined side surface, and comprising an active layer and a lower semiconductor layer;
• a first insulation layer covering the mesa and having an opening exposing the upper semiconductor layer;
• a first contact layer contacting the upper semiconductor layer through the opening of the first insulation layer;
• a second contact layer formed between the mesa and the first insulation layer and contacting the lower semiconductor layer;
• a first electrode pad and a second electrode pad disposed under the first contact layer and electrically connected to the first contact layer and second contact layer, respectively;
• and
• a second insulation layer located between the first contact layer and the first and the second electrode pads;
• wherein the first electrode pad and the second electrode pad of the UV LED package are electrically connected to the first pad and the second pad, respectively.

A light emitting diode (LED) package comprising:

• a semiconductor stack including a first conductive type semiconductor layer, a second conductive type semiconductor layer and an active layer interposed between the first and second semiconductor layers, wherein the second conductive type semiconductor layer and the active layer are structured to expose the first conductive type semiconductor layer on sides of the semiconductor stack;
• a first electrical contact disposed to contact the first conductive type semiconductor layer on the sides of the semiconductor stack and to provide a first electrical contact path to the semiconductor stack;
• a second electrical contact disposed to contact the second conductive type semiconductor layer and to provide a second electrical contact path to the semiconductor stack;
• an inner insulation layer formed on the sides of the semiconductor stack to cover an external sidewall of the semiconductor stack to protect the semiconductor stack from an external environment;
• and
• an outer insulation layer formed to cover a side surface of the inner insulation layer.

A light emitting diode (LED) package comprising:

• a semiconductor stack including a first conductive type semiconductor layer having a first surface and a second surface opposite to the first surface, an active layer formed on the first surface of the first conductive type semiconductor layer, and a second conductive type semiconductor layer formed on the active layer, wherein the first conductive type semiconductor layer is formed on sides of the semiconductor stack without the active layer and the second conductive type semiconductor layer formed on the first conductive type semiconductor layer;
• a first insulation layer formed on a side of the semiconductor stack to cover a side surface of the semiconductor stack;
• a second insulation layer formed on the side of the semiconductor stack to cover a side surface of the first insulation layer, the second insulation layer covering the side surface of the semiconductor stack;
• and
• a third insulation layer formed on the side of the semiconductor stack to cover a side surface of the second insulation layer, the third insulation layer covering the side surface of the semiconductor stack,
• a first electrical contact path disposed closer to the first surface of the first conductive type semiconductor layer than the second surface of the first conductive type semiconductor layer and electrically contacting with the first conductive type semiconductor layer;
• and
• a second electrical contact path disposed closer to the first surface of the first conductive type semiconductor layer than the second surface of the first conductive type semiconductor layer and electrically contact with the second conductive type semiconductor layer.