Abstract:
A light-emitting device comprises a first light-emitting semiconductor stack comprising a first active layer; a second light-emitting semiconductor stack below the first light-emitting semiconductor stack, wherein the second light-emitting semiconductor stack comprises a second active layer; a reflector between the first light-emitting semiconductor stack and the second light-emitting semiconductor stack; a protecting layer between the reflector and the second light-emitting semiconductor stack; and wherein the first light-emitting semiconductor stack further comprises a first semiconductor layer and a second semiconductor layer sandwiching the first active layer, the second light-emitting semiconductor stack further comprises a third semiconductor layer and a fourth semiconductor layer sandwiching the second active layer, wherein the second semiconductor layer has a first band gap, the third semiconductor layer has a second band gap, and the protecting layer has a third band gap between the first band gap and the second band gap.
Abstract:
The present disclosure provides a method of manufacturing a light-emitting device, which comprises providing a first substrate and a plurality of semiconductor stacked blocks comprising a first semiconductor stacked block and a second semiconductor stacked block on the first substrate, and each of the plurality semiconductor stacked blocks comprises a first conductive-type semiconductor layer, a light-emitting layer on the first conductive-type semiconductor layer, and a second conductive-type semiconductor layer on the light-emitting layer; conducting a separating step to separate the first semiconductor stacked block from the first substrate, and the second semiconductor stacked block remains on the first substrate; providing an element substrate comprising a patterned metal layer; and conducting a bonding step to bond and align the first semiconductor stacked block or the second semiconductor stacked block with the patterned metal layer.
Abstract:
A light-emitting device is provided. comprises: a light-emitting stack comprising an active layer emitting a first light having a first peak wavelength λ nm; and an adjusting element stacked on and electrically connected to the active layer, wherein the adjusting element comprises a diode emitting a second light having a second peak wavelength between 800 nm and 1900 nm; wherein a forward voltage of the light-emitting device is between (1240/0.8λ) volt and (1240/0.5λ) volt, and a ratio of the intensity of the first light emitted from the active layer at the first peak wavelength to the intensity of the second light emitted from the diode at the second peak wavelength is greater than 10 and not greater than 1000.
Abstract:
A semiconductor light-emitting device comprises a substrate; a first adhesive layer on the substrate; multiple epitaxial units on the first adhesive layer; a second adhesive layer on the multiple epitaxial units; multiple first electrodes between the first adhesive layer and the multiple epitaxial units, and contacting the first adhesive layer and the multiple epitaxial units; and multiple second electrodes between the second adhesive layer and the multiple epitaxial units, and contacting the second adhesive layer and the multiple epitaxial units; wherein the multiple epitaxial units are totally separated.
Abstract:
The present disclosure provides a method of manufacturing a light-emitting device, which comprises providing a first substrate and a plurality of semiconductor stacked blocks on the first substrate, and each of the plurality semiconductor stacked blocks comprises a first conductive-type semiconductor layer, a light-emitting layer on the first conductive-type semiconductor layer, and a second conductive-type semiconductor layer on the light-emitting layer; wherein there is a trench separating two adjacent semiconductor stacked blocks on the first substrate, and a width of the trench is less than 10 μm; and conducting a first separating step to separate a first semiconductor stacked block of the plurality of semiconductor stacked blocks from the first substrate and keep a second semiconductor stacked block on the first substrate.
Abstract:
The present disclosure is to provide an optoelectronic device. The optoelectronic device comprises a heat dispersion substrate; an insulative protection layer on the heat dispersion substrate, wherein the insulative protection layer comprises AlInGaN series material; and an optoelectronic unit comprising an epitaxial structure comprising multiple layers on the insulative protection layer, wherein at least one layer of the epitaxial structure comprises III-V group material devoid of nitride.
Abstract:
An object of the present invention is to provide a light-emitting device comprising: a substrate, a first light-emitting semiconductor stack having a first transverse width, the first light-emitting semiconductor stack comprising a first active layer emitting a first radiation of a first dominant wavelength during operation; a second light-emitting semiconductor stack having a second transverse width less than the first transverse width and comprising a second active layer emitting a second radiation of a second dominant wavelength shorter than the first dominant wavelength during operation; and a first conductive connecting structure between the first light-emitting semiconductor stack and the second light-emitting semiconductor stack, wherein the first conductive connecting structure is lattice-mismatched to the first active layer and to the second active layer, the first light-emitting semiconductor stack is between the substrate and the second light-emitting semiconductor stack.
Abstract:
A method of manufacturing a semiconductor light-emitting device, comprises the steps of providing a first substrate; providing multiple epitaxial units on the first substrate, wherein the plurality of epitaxial units comprises: multiple first epitaxial units, wherein each of the first epitaxial units has a first geometric shape and a first area; and multiple second epitaxial units, wherein each of the second epitaxial units has a second geometric shape and a second area; providing a second substrate with a surface; transferring the multiple second epitaxial units to the surface of the second substrate; and dividing the first substrate to form multiple first semiconductor light-emitting devices, wherein each of the first semiconductor light-emitting devices has the first epitaxial unit; wherein the first geometric shape is different from the second geometric shape, or the first area is different from the second area.
Abstract:
A semiconductor light-emitting device includes a semiconductor stack comprising a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the first semiconductor layer includes a periphery surface surrounding the active layer; a plurality of vias penetrating the semiconductor stack to expose the first semiconductor layer; and a patterned metal layer formed on the plurality of vias and covered the periphery surface of the first semiconductor layer.
Abstract:
An integrated lighting apparatus comprises a first control device including a semiconductor substrate, an integrated circuit block formed above a first portion of the semiconductor substrate, and a plurality of power pads formed above the integrated circuit block; a first light emitting device formed above a second portion of the semiconductor substrate; and a through plug passing through the semiconductor substrate for electrically connecting the first control device and the first light emitting device.