H01L2933/0066

HOUSING, OPTOELECTRONIC SEMICONDUCTOR COMPONENT AND PRODUCTION METHOD

The Invention relates to a housing for an optoelectronic semiconductor component, comprising: a housing main body, which has a chip mounting side, at least two electrical conducting structures in and/or on the housing main body, and a plurality of drainage structures on the chip mounting side. The electrical conducting structures form, on the chip mounting side, electrical contact surfaces for at least one optoelectronic semiconductor chip and the drainage structure are designed as means for feeding a liquid potting material to the electrical contact surfaces.

LIGHT EMITTING DEVICE FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME
20230037604 · 2023-02-09 ·

A light emitting device for a display including a first LED stack configured to generate light having a first peak wavelength, a second LED stack disposed under the first LED stack, and configured to generate light having a second peak wavelength, a third LED stack disposed under the second LED stack, and configured to generate light having a third peak wavelength; and a floating reflection layer disposed over the first LED stack, in which the first peak wavelength is longer than the second and third peak wavelengths, the first LED stack has a roughened surface to increase the luminous intensity of the light generated in the first LED stack entering the second LED stack, and the floating reflection layer has a high reflectance of 80% or more over light having the first peak wavelength.

Bonding method, display backplane and system for manufacturing display backplane

The application discloses a bonding method, a display backplane and a system for manufacturing the display backplane. The method includes: providing a substrate, and forming a plurality of first metal bumps on the substrate; providing a transfer device to transfer the plurality of the first metal bumps to a TFT substrate to form a plurality of pairs of metal pads on the TFT substrate, wherein each pair of the metal pads include two of the first metal bumps; and providing a plurality of LED flip chips, and transferring the plurality of LED flip chips to the TFT substrate by using the transfer device to bond electrodes of each of the LED flip chips to one pair of the metal pads respectively.

ARRAY SUBSTRATE AND MANUFACTURING METHOD THEREFOR, DISPLAY PANEL, AND BACKLIGHT MODULE

An array substrate and a manufacturing method therefor, a display panel, and a backlight module, are provided. The array substrate may comprise a base substrate, a metal wiring layer, a first planarization layer, an electrode layer, a second planarization layer, and a functional device layer stacked in sequence. The electrode layer comprises a metal sub-layer and a conductive sub-layer stacked on one side of the base substrate in sequence; the material of the metal sub-layer comprises a metal or a metal alloy; the conductive sub-layer has an oxidation resistance and covers the metal sub-layer . The functional device layer is disposed on the side of the second planarization layer distant from the base substrate, and comprises a plurality of functional devices electrically connected to the electrode layer.

DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME
20230044786 · 2023-02-09 ·

A display device includes light-emitting elements arranged on a circuit board, and extending in a thickness direction of the circuit board, wherein the light-emitting elements include a first light-emitting element configured to emit a first light, and a second light-emitting element configured to emit a second light, wherein the first light-emitting element and the second light-emitting element are on different layers, and wherein a width of the first light-emitting element is greater than a width of the second light-emitting element.

Light emitting diode display device and method of manufacturing the same
11557627 · 2023-01-17 · ·

A light emitting device includes: a base layer; a first conductive layer on the base layer, and including first and second electrode patterns, and exposing a portion of the base layer at a first area between the first and second electrode patterns; a fine light emitting diode (LED) at the first area; a second conductive layer covering the second electrode pattern and a first side of the fine LED, and contacting the second electrode pattern and the first side of the fine LED; a first insulation layer on the second conductive layer and the fine LED, and partially exposing a second side of the fine LED; and a third conductive layer covering the first electrode pattern and the second side of the fine LED and a portion of a sidewall of the insulation layer, and contacting the first electrode pattern and the second side of the fine LED.

Method of manufacturing a semiconductor device and semiconductor device
11557691 · 2023-01-17 · ·

In an embodiment a method includes forming a semiconductor layer sequence on a growth substrate, applying a silicon oxide layer to a surface of the semiconductor layer sequence facing away from the growth substrate, applying a first metal layer to the silicon oxide layer, wherein the first metal layer includes gold, platinum, copper or silver, providing a silicon substrate and applying a second metal layer formed of the same material as the first metal layer to the silicon substrate, bonding the semiconductor layer sequence to the silicon substrate by direct bonding of the first metal layer to the second metal layer, wherein the first metal layer and the second metal layer are brought into contact at a temperature in a range of 150° C. to 400° C. so that they form a metal bonding layer and detaching the growth substrate from the semiconductor layer sequence.

Selectively bonding light-emitting devices via a pulsed laser

The invention is directed towards enhanced systems and methods for employing a pulsed photon (or EM energy) source, such as but not limited to a laser, to electrically couple, bond, and/or affix the electrical contacts of a semiconductor device to the electrical contacts of another semiconductor devices. Full or partial rows of LEDs are electrically coupled, bonded, and/or affixed to a backplane of a display device. The LEDs may be μLEDs. The pulsed photon source is employed to irradiate the LEDs with scanning photon pulses. The EM radiation is absorbed by either the surfaces, bulk, substrate, the electrical contacts of the LED, and/or electrical contacts of the backplane to generate thermal energy that induces the bonding between the electrical contacts of the LEDs' electrical contacts and backplane's electrical contacts. The temporal and spatial profiles of the photon pulses, as well as a pulsing frequency and a scanning frequency of the photon source, are selected to control for adverse thermal effects.

Method for manufacturing display device using semiconductor light-emitting elements and display device
11557705 · 2023-01-17 · ·

The present invention relates to a method for manufacturing a display device using semiconductor light-emitting elements and a display device. The method for manufacturing a display device according to the present invention comprises the steps of: transferring semiconductor light-emitting elements provided on a growth substrate to an adhesive layer of a temporary substrate; curing the adhesive layer of the temporary substrate; aligning the temporary substrate with a wiring substrate having a wiring electrode and a conductive adhesive layer; compressing the temporary substrate to the wiring substrate so that the semiconductor light-emitting elements bond to the wiring substrate together with the adhesive layer of the temporary substrate, and then removing the temporary substrate; and removing at least a part of the adhesive layer to expose the semiconductor light-emitting elements to the outside, and depositing electrodes on the semiconductor light-emitting elements.

Additive manufacturing of electrical circuits

A method of manufacturing an electronics assembly includes forming a base layer using an additive manufacturing process, forming a first thermally and electrically conductive intermediate layer onto the base layer using an additive manufacturing process, placing an electronics component onto the first thermally and electrically conductive intermediate layer, the electronics component comprising a plurality of vias, forming a second thermally and electrically conductive intermediate layer over the first thermally and electrically conductive intermediate layer and over at least a portion of the electronics component using an additive manufacturing process, wherein a material of the second thermally and electrically conductive intermediate layer extends through the vias to contact the first thermally and electrically conductive intermediate layer and the vias, thereby forming a bond therebetween, and forming a protective layer over at least a portion of the second thermally and electrically conductive intermediate layer using an additive manufacturing process.