Semiconductor light emitting device and method for manufacturing same
View Patent ↗According to one embodiment, a semiconductor light emitting device includes a semiconductor layer, a sealing member configured to cover a lower surface of the semiconductor layer and a side surface of the semiconductor layer to protrude to be higher than an upper surface of the semiconductor layer at a side of the semiconductor layer, a fluorescer layer provided above the semiconductor layer and the sealing member, and an insulating film provided between the sealing member and the semiconductor layer and between the sealing member and the fluorescer layer. A corner of a protruding portion of the sealing member is rounded.
1. A semiconductor light emitting device, comprising:
a semiconductor layer that includes a p-type layer and an n-type layer;
a sealing member configured to cover a lower surface and a side surface of the semiconductor layer;
a fluorescer layer provided above the semiconductor layer and the sealing member, the fluorescer layer including
a main material made of a resin, and
fluorescer particles dispersed in the main material; and
a passivation film having a first portion and a second portion, the first portion being provided on the lower surface and the side surface of the semiconductor layer, and between the semiconductor layer and the sealing member, the second portion being higher than the entire semiconductor layer, being provided between the sealing member and the fluorescer layer, and extending to get away from the semiconductor layer along a surface of the sealing member facing the fluorescer layer, and
the passivation film free from being provided at an outer circumferential portion of the semiconductor light emitting device,
wherein the fluorescer layer includes a first region facing the semiconductor layer and a second region facing a protruding portion of the sealing member, the first region protrudes to be lower than the second region,
wherein the second portion of the passivation film is in direct contact with a side surface of the first region of the fluorescer layer and in direct contact with a lower surface of the second region of the fluorescer layer, and
wherein the second portion of the passivation film has a top major surface and a bottom major surface, the bottom major surface in the second portion of the passivation film is higher than the semiconductor layer, is higher than a lowest portion of the first region of the fluorescer layer, and is provided between the sealing member and the side surface of the first region and the lower surface of the second region of the fluorescer layer.
2. The device according to claim 1 , further comprising an adhesive layer provided between the semiconductor layer and the fluorescer layer.
3. The device according to claim 1 , wherein the sealing member is configured to protrude to be higher than an upper surface of the semiconductor layer at a side of the semiconductor layer.
4. The device according to claim 1 , further comprising an electrode connected to the semiconductor layer,
the sealing member being configured to cover a lower surface and a side surface of a structural body made of the semiconductor layer and the electrode,
the sealing member including:
a metal portion; and
a resin portion, and
an end portion of the metal portion extending onto an end portion of the electrode with the passivation film interposed.