Semiconductor light emitting device, light emitting module, lighting apparatus, display element and manufacturing method of semiconductor light emitting device
First Claim
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1. A semiconductor light emitting device comprising:
- a base substrate;
a multilayer epitaxial structure that includes a first conductive layer, a second conductive layer and a light emitting layer that is formed between the first conductive layer and the second conductive layer, the first conductive layer being disposed on a first of two main surfaces of the base substrate in such a manner to be positioned closer to the base substrate than the second conductive layer is;
a first electrode in contact with the first conductive layer;
a second electrode in contact with the second conductive layer;
an insulating film disposed on each side surface of the multilayer epitaxial structure and part of an upper surface of the multilayer epitaxial structure;
a first power feed terminal and a second power feed terminal disposed on a second of the two main surfaces of the base substrate; and
a first through hole and a second through hole disposed on the base substrate, whereina first conductive film has an extended portion projecting from a bottom surface of the multilayer epitaxial structure,the first electrode is electrically connected to the first power feed terminal via the first conductive film, the extended portion and the first through hole,a second conductive film is disposed on the insulating film,the second electrode is electrically connected to the second power feed terminal via the second conductive film and the second through hole,the first electrode is a high-reflective electrode, anda light reflection film is disposed on the first main surface of the base substrate, around the multilayer epitaxial structure.
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Abstract
An LED array chip (2), which is one type of a semiconductor light emitting device, includes an array of LEDs (6), a base substrate (4) supporting the array of the LEDs (6), and a phosphor film (48). The array of LEDs (6) is formed by dividing a multilayer epitaxial structure having a N-sided polygonal cross-section where N is an integer equal to or larger than 6. The phosphor film (48) covers an upper surface of the array of the LEDs (6) and a part of every side surface of the array of LEDs (6). Here, the part extends from the upper surface to the light emitting layer.
37 Citations
15 Claims
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1. A semiconductor light emitting device comprising:
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a base substrate; a multilayer epitaxial structure that includes a first conductive layer, a second conductive layer and a light emitting layer that is formed between the first conductive layer and the second conductive layer, the first conductive layer being disposed on a first of two main surfaces of the base substrate in such a manner to be positioned closer to the base substrate than the second conductive layer is; a first electrode in contact with the first conductive layer; a second electrode in contact with the second conductive layer; an insulating film disposed on each side surface of the multilayer epitaxial structure and part of an upper surface of the multilayer epitaxial structure; a first power feed terminal and a second power feed terminal disposed on a second of the two main surfaces of the base substrate; and a first through hole and a second through hole disposed on the base substrate, wherein a first conductive film has an extended portion projecting from a bottom surface of the multilayer epitaxial structure, the first electrode is electrically connected to the first power feed terminal via the first conductive film, the extended portion and the first through hole, a second conductive film is disposed on the insulating film, the second electrode is electrically connected to the second power feed terminal via the second conductive film and the second through hole, the first electrode is a high-reflective electrode, and a light reflection film is disposed on the first main surface of the base substrate, around the multilayer epitaxial structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification