Abstract:
A package structure for photoelectronic devices comprises a silicon substrate, a first insulating layer, a reflective layer, a second insulating layer, a first conductive layer, a second conductive layer and a die. The silicon substrate has a first surface and a second surface, wherein the first surface is opposed to the second surface. The first surface has a reflective opening, and the second surface has at least two electrode via holes connected to the reflective opening and a recess disposed outside the electrode via holes. The first insulating layer overlays the first surface, the second surface and the recesses. The reflective layer is disposed on the reflective opening. The second insulating layer is disposed on the reflective layer. The first conductive layer is disposed on the surface of the second insulating layer. The second conductive layer is disposed on the surface of the second surface and inside the electrode via holes. The die is fixed inside the reflective opening and electrically connected to the first conductive layer.
Abstract:
An exemplary method for manufacturing an LED package includes following steps: providing a substrate; forming a reflector on the substrate with a receiving chamber defined in the reflector; providing an LED chip and mounting the LED chip on the substrate wherein the LED chip is received in the receiving chamber; providing a gelatinous phosphor layer and arranging the gelatinous phosphor layer on a top end of the reflector wherein the gelatinous phosphor layer covers the receiving chamber and phosphor powder is evenly distributed in the gelatinous phosphor layer; providing a pressing mold and arranging the pressing mold on a top end of the gelatinous phosphor layer; pressing the pressing mold toward the gelatinous phosphor layer to make the gelatinous phosphor layer fill in the receiving chamber; solidifying the gelatinous phosphor layer.
Abstract:
A method for packaging an LED, includes steps: providing a supporting board and then dripping a gel mixed with fluorescent therein on the supporting board; scraping the gel over the supporting board with a scraper form a gelatinous fluorescent film on the supporting board, and solidifying the gelatinous fluorescent film pieces to form a solidified fluorescent film; cutting the solidified fluorescent film into individual pieces, and peeling the solid fluorescent films from the supporting board; attaching one piece of the fluorescent film on a light outputting surface of an LED die; mounting the LED die on a substrate, and electrically connecting the LED die to the circuit structure; and forming an encapsulation on the substrate to cover the LED die.
Abstract:
A method for manufacturing a phosphor film for use in the an LED package, includes following steps: providing a mold comprising a first and a second molding part, the first molding part and the second molding part cooperatively forming a molding chamber, the first molding part defining an opening communicating with the molding chamber; filling a mixture of phosphor particles and a transparent glue into the first opening; moving a piston in the first opening along a direction from the first molding part to the second molding part, thereby pressing the mixture into the molding chamber; solidifying the mixture to form a phosphor film; and removing the phosphor film from the mold. The phosphor film is used to be attached to a top face of an LED chip opposite a substrate on which the LED chip is mounted.
Abstract:
An LED light bar includes an elongated circuit board, a first lighting module formed in the middle of the circuit board and two second light modules formed at two opposite ends of the circuit board. Each of first lighting module and the two second lighting module includes a plurality of LEDs arranged linearly on a surface of the circuit board. A density of the LEDs in the first lighting module is smaller than that in the second lighting modules.
Abstract:
A light-emitting element package includes a package member for encapsulating a light-emitting element. A plurality of photonic crystal patterns is formed on the package member. A distribution density of the photonic crystal patterns corresponds to light distribution of the light-emitting element. Each photonic crystal pattern consists of a plurality of photonic crystals.
Abstract:
An LED package includes a silicon base, an LED and a glass encapsulant. The silicon base has a first surface and a second surface opposite to the first surface. The LED chip is located on the first surface of the silicon base. The glass encapsulant covers the LED chip. The glass encapsulant and the silicon base define a receiving space therebetween to receive the LED chip. The glass encapsulant is fixedly engaged with the first surface of the silicon base, so the glass encapsulant and the silicon base enclose the LED chip.