Patent application number | Description | Published |
20080283820 | LED packaged structure and applications of LED as light source - LED packaged structures and applications thereof are disclosed, characterized in that: an active layer in the LED or the LED packaged structure is formed on a first semiconductor conductive layer with multi-quantum wells; and a second semiconductor conductive layer is formed on the active layer; wherein a plurality of particles formed by at least one hetero-material are scattered between the first semiconductor conductive layer and the active layer in order to form an uneven multi-quantum well. | 11-20-2008 |
20080296588 | Semiconductor substrate with electromagnetic-wave-scribed nicks, semiconductor light-emitting device with such semiconductor substrate and manufacture thereof - The invention discloses a substrate and a fabricating method thereof for epitaxy of a semiconductor light-emitting device. An upper surface of the substrate according to the invention, where the epitaxy of the semiconductor light-emitting device is to be performed, has a plurality of electromagnetic-wave-scribed nicks. | 12-04-2008 |
20090001394 | Semiconductor structure combination for epitaxy of semiconductor optoelectronic device - The invention discloses a semiconductor structure combination for the epitaxy of a semiconductor optoelectronic device and manufacture thereof. The semiconductor structure combination according to the invention includes a substrate and a semiconductor material. The substrate has an upper surface and a recess formed on the upper surface. The sidewalls of the recess provide at least one first site for the growth of at least one first epitaxial crystal of the semiconductor material toward a first preferred orientation. A bottom of the recess provides a second site for the growth of a second epitaxial crystal of the semiconductor material toward the first preferred orientation. Flat regions adjacent to the recess provide at least one third site for the growth of at least one third epitaxial crystal of the semiconductor material toward the first preferred orientation. | 01-01-2009 |
20090045419 | Semiconductor light-emitting device with high light-extraction efficiency and method for fabricating the same - The invention discloses a semiconductor light-emitting device and a method of fabricating the same. The semiconductor light-emitting device according to the invention includes a substrate, a first semiconductor material layer, a multi-layer structure and an ohmic electrode structure. The substrate has a first upper surface and a plurality of recesses formed on the first upper surface. The first semiconductor material layer is formed on the first upper surface of the substrate and has a second upper surface. The multi-layer structure is formed on the second upper surface of the first semiconductor material layer and includes a light-emitting region. The ohmic electrode structure is formed on the multi-layer structure. In particular, the first semiconductor material layer has a refractive index different from those of the substrate and a bottom-most layer of the multi-layer structure. | 02-19-2009 |
20090057694 | LIGHT OPTOELECTRONIC DEVICE AND FORMING METHOD THEREOF - The present invention provides an optoelectronic device with an epi-stacked structure, which includes a substrate, a buffer layer that is formed on the substrate, in which the buffer layer includes a first nitrogen-containing compound layer, an II/V group compound layer is provided on the first nitrogen-containing compound layer, a second nitrogen-containing compound layer is provided on the II/V group compound layer, and a third nitrogen-containing compound layer is provided on the second nitrogen-containing compound layer, an epi-stacked stricture with a multi-layer structure is formed on the buffer layer, which includes a first semiconductor conductive layer is formed on the buffer layer, an active layer is formed on the first semiconductor conductive layer, a multi-layer structure is formed between the first semiconductor conductive layer and the active layer, and a second semiconductor conductive layer is formed on the active layer. | 03-05-2009 |
20090212311 | SEMICONDUCTOR LIGHT-EMITTING DEVICE - The invention discloses a semiconductor light-emitting device, which includes a substrate, a first conductive type semiconductor material layer, a second conductive type semiconductor material layer, a light-emitting layer, a first electrode, a second electrode, and a plurality of bump structures. The first conductive type semiconductor material layer is formed on the substrate and has an upper surface which includes a first region and a second region distinct from the first region. The first electrode is formed on the first region. The light-emitting layer and the second conductive type semiconductor material layer are formed on the second region. The bump structures are formed on the upper surface of the first conductive type semiconductor material layer and between the first region and the second region. Each bump structure is made of ITO, SiO2, SiN, ZnO, polymide, BCB, SOG, InO, or SnO. | 08-27-2009 |
20090212312 | SEMICONDUCTOR LIGHT-EMITTING DEVICE - The invention discloses a semiconductor light-emitting device, which includes a substrate, a first conductive type semiconductor material layer, a second conductive type semiconductor material layer, a light-emitting layer, a first electrode, a second electrode, and a plurality of bump structures. The first conductive type semiconductor material layer is formed on the substrate and has an upper surface which includes a first region and a second region distinct from the first region. The first electrode is formed on the first region. The light-emitting layer and the second conductive type semiconductor material layer are formed on the second region. The bump structures are formed on the upper surface of the first conductive type semiconductor material layer and between the first region and the second region. Each bump structure is made of ITO, SiO2, SiN, ZnO, polymide, BCB, SOG, InO, or SnO. | 08-27-2009 |
20100176408 | LIGHT-EMITTING DIODE WITH HIGH LIGHTING EFFICIENCY - The invention discloses a light-emitting diode, including a substrate, a first conductive type semiconductor layer, a second conductive type semiconductor layer, a light-emitting layer and plural laminated structures. The first conductive type semiconductor layer, the light-emitting layer and the second conductive type semiconductor layer are formed on the substrate in sequence. The plural laminated structures are formed on the upper surface of the second conductive type semiconductor layer such that the upper surface is partially exposed. Each laminated structure consists of at least one first insulated layer with a high refractive index and at least one second insulated layer with a low refractive index, where the at least one first insulated layer and the at least one second insulated layer are alternately formed to obtain said each laminated structure. Thereby, light emitted from the light-emitting layer can be reflected by the laminated structures to enhance the light-extraction efficiency. | 07-15-2010 |
20100176419 | LIGHT-EMITTING DIODE WITH HIGH LIGHTING EFFICIENCY - The invention discloses a light-emitting diode. In an embodiment, the light-emitting diode includes a substrate, a first doping type semiconductor layer, a second doping type semiconductor layer, a light-emitting layer and plural laminated structures. The first doping type semiconductor layer, the light-emitting layer and the second doping type semiconductor layer are formed on the substrate in sequence. The plural laminated structures are formed on the top surface of the second doping type semiconductor layer such that the top surface is partially exposed. Each laminated structure consists of plural transparent insulating layers which have their respective refractive indices. Additionally, each of the laminated structures is formed in a way of upwardly stacking the transparent insulating layers in sequence with the refractive indices of the transparent insulating layers decreasing gradually, so as to enhance the light-extraction efficiency and the lighting efficiency of the light-emitting diode. | 07-15-2010 |
20100193810 | Optical Device and the Forming Method Thereof - An optical device is provided which includes a first electrode; a substrate disposed on the first electrode; a plurality of multi-layer film structures disposed on the substrate, and the multi-layer film structure consisted of at least two insulated layer with different reflection index formed alternately; a first semiconductor conductive layer disposed on the substrate to cover the multi-layer film structure; an active layer disposed on the first semiconductor conductive layer; a second semiconductor conductive layer disposed on the active layer; a transparent conductive layer disposed on the second semiconductor conductive layer; and a second electrode disposed on the transparent conductive layer, thereby, the multi-layer structure can increase the light reflective effect or anti-reflective effect within the optical device to improve the light emitting effective. | 08-05-2010 |
20100230706 | SEMICONDUCTOR LIGHT-EMITTING DEVICE - The invention discloses a semiconductor light-emitting device, which includes a substrate, a first conductive type semiconductor material layer, a second conductive type semiconductor material layer, a light-emitting layer, a first electrode, a second electrode, and a plurality of bump structures. The first conductive type semiconductor material layer is formed on the substrate and has an upper surface which includes a first region and a second region distinct from the first region. The first electrode is formed on the first region. The light-emitting layer and the second conductive type semiconductor material layer are formed on the second region. The bump structures are formed on the upper surface of the first conductive type semiconductor material layer and between the first region and the second region. At least one recess is formed in the sidewall of each bump structure. Alternatively, the sidewall of each bump structure has a curved contour. | 09-16-2010 |
20100237357 | Light Emitting Device Having Pillar Structure with Roughness Surface and the Forming Method Thereof - A light emitting device is provided which includes a substrate, a first semiconductor layer having a first region and a second region on the substrate; ac active layer is formed on the first region of the first semiconductor layer; a second semiconductor layer is formed on the active surface layer and the portion surface of the second semiconductor layer is a rough surface; a plurality of pillar structures with a hollow structure, and both of the outer surface and inner surface of the pillar structures are rough surface; a transparent conductive layer is formed to cover the plurality of pillar structures; a first electrode is formed on the transparent conductive layer; and a second electrode is formed on the second region of the first semiconductor layer. | 09-23-2010 |
20130140581 | OPTICAL DEVICE - An optical device is provided. Multi-layer structures are disposed on a substrate, wherein each of the multi-layer structures is consisting of at least two insulated layers with different refractive indexes formed alternately. A buffer layer covers the multi-layer structures, so that said multi-layer structures are disposed between the buffer layer and the substrate, wherein said buffer layer is an un-doped GaN based semiconductor layer. A first conductive semiconductor layer is disposed on the buffer layer. An active layer is disposed on said first conductive semiconductor layer. A second conductive semiconductor layer is disposed on said active layer and a transparent conductive layer is disposed on said second conductive semiconductor layer. | 06-06-2013 |
20140268877 | LUMINOUS ELEMENT, BAR-TYPE LUMINOUS ELEMENT AND APPLICATIONS THEREOF - A luminous element includes a heat dissipation plate, a body, a plurality of LED chips, a first connector and a second connector. The heat dissipation plate includes a die-bonding area and a heat dissipation area opposite to the die-bonding area. The body surrounds the heat dissipation plate, and includes a first body surface and a second body surface opposite to the first body surface. The first body surface includes a concave part exposing the die-bonding area. The second body surface includes an opening exposing the heat dissipation area. The LED chips are mounted on the die-bonding area. The first and the second connectors are disposed on the body, and they can be pluggably connected to an external power source or other connectors. The LED chips are connected to the electrical input terminals in the first and the second connectors. | 09-18-2014 |