Patent classifications
H01L2924/12035
Light emitting device, resin package, resin-molded body, and methods for manufacturing light emitting device, resin package and resin-molded body
A method of manufacturing a light emitting device having a resin package which provides an optical reflectivity equal to or more than 70% at a wavelength between 350 nm and 800 nm after thermal curing, and in which a resin part and a lead are formed in a substantially same plane in an outer side surface, includes a step of sandwiching a lead frame provided with a notch part, by means or an upper mold and a lower mold, a step of transfer-molding a thermosetting resin containing a light reflecting material in a mold sandwiched by the upper mold and the lower mold to form a resin-molded body in the lead frame and a step of cutting the resin-molded body and the lead frame along the notch part.
Light emitting device, resin package, resin-molded body, and methods for manufacturing light emitting device, resin package and resin-molded body
A method of manufacturing a light emitting device having a resin package which provides an optical reflectivity equal to or more than 70% at a wavelength between 350 nm and 800 nm after thermal curing, and in which a resin part and a lead are formed in a substantially same plane in an outer side surface, includes a step of sandwiching a lead frame provided with a notch part, by means or an upper mold and a lower mold, a step of transfer-molding a thermosetting resin containing a light reflecting material in a mold sandwiched by the upper mold and the lower mold to form a resin-molded body in the lead frame and a step of cutting the resin-molded body and the lead frame along the notch part.
REFLECTIVE COMPOSITE MATERIAL, IN PARTICULAR FOR SURFACE-MOUNTED DEVICES (SMD), AND LIGHT-EMITTING DEVICE WITH A COMPOSITE MATERIAL OF THIS TYPE
A reflective composite material with a carrier consisting of aluminum with, on one side (A) of the carrier, an interlayer made of aluminum oxide, and with, above the interlayer, an optically active reflection-boosting multilayer system. In order to provide a high-reflectivity composite material of this kind which exhibits improved electrical connectivity when surface-mounting procedures are used, it is proposed that the thickness of the interlayer is in the range 5 nm to 200 nm, and that a layer of a metal or a metal alloy has been applied superficially on side (B) of the carrier that is opposite to the optically active reflection-boosting multilayer system, where the electrical resistivity at 25 C. of the metal or metal alloy is at most 1.210.sup.1 mm.sup.2/m, where the thickness of the layer applied superficially is in the range 10 nm to 5.0 m.
Resin molding, surface mounted light emitting apparatus and methods for manufacturing the same
The present invention provides a surface mounted light emitting apparatus which has long service life and favorable property for mass production, and a molding used in the surface mounted light emitting apparatus. The surface mounted light emitting apparatus comprises the light emitting device 10 based on GaN which emits blue light, the first resin molding 40 which integrally molds the first lead 20 whereon the light emitting device 10 is mounted and the second lead 30 which is electrically connected to the light emitting device 10, and the second resin molding 50 which contains YAG fluorescent material and covers the light emitting device 10. The first resin molding 40 has the recess 40c comprising the bottom surface 40a and the side surface 40b formed therein, and the second resin molding 50 is placed in the recess 40c. The first resin molding 40 is formed from a thermosetting resin such as epoxy resin by the transfer molding process, and the second resin molding 50 is formed from a thermosetting resin such as silicone resin.
Resin molding, surface mounted light emitting apparatus and methods for manufacturing the same
The present invention provides a surface mounted light emitting apparatus which has long service life and favorable property for mass production, and a molding used in the surface mounted light emitting apparatus. The surface mounted light emitting apparatus comprises the light emitting device 10 based on GaN which emits blue light, the first resin molding 40 which integrally molds the first lead 20 whereon the light emitting device 10 is mounted and the second lead 30 which is electrically connected to the light emitting device 10, and the second resin molding 50 which contains YAG fluorescent material and covers the light emitting device 10. The first resin molding 40 has the recess 40c comprising the bottom surface 40a and the side surface 40b formed therein, and the second resin molding 50 is placed in the recess 40c. The first resin molding 40 is formed from a thermosetting resin such as epoxy resin by the transfer molding process, and the second resin molding 50 is formed from a thermosetting resin such as silicone resin.
Illumination apparatus
An illumination apparatus comprises a plurality of LEDs aligned to an array of directional optical elements wherein the LEDs are substantially at the input aperture of respective optical elements. An electrode array is formed on the array of optical elements to provide at least a first electrical connection to the array of LED elements. Advantageously such an arrangement provides low cost and high efficiency from the directional LED array.
Electronic device
An electronic device includes: a base; a wiring pattern formed on the base; an electronic element disposed on the wiring pattern; and a bonding layer interposed between the electronic element and the wiring pattern, wherein an opening is formed in the wiring pattern and the bonding layer is in contact with a portion of the base exposed by the opening in the wiring pattern.
Ilumination apparatus
An illumination apparatus comprises a plurality of LEDs aligned to an array of directional optical elements wherein the LEDs are substantially at the input aperture of respective optical elements. An electrode array is formed on the array of optical elements to provide at least a first electrical connection to the array of LED elements. Advantageously such an arrangement provides low cost and high efficiency from the directional LED array.
Ilumination apparatus
An illumination apparatus comprises a plurality of LEDs aligned to an array of directional optical elements wherein the LEDs are substantially at the input aperture of respective optical elements. An electrode array is formed on the array of optical elements to provide at least a first electrical connection to the array of LED elements. Advantageously such an arrangement provides low cost and high efficiency from the directional LED array.
METHOD OF MANUFACTURING LIGHT EMITTING DEVICE
A method of manufacturing a light emitting device includes: providing a substrate including a pair of connection terminals, the connection terminals each having a protruding portion at least on a first main surface of the connection terminal; providing a light emitting element on the protruding portion, the light emitting element having a semiconductor laminate and a pair of electrodes on a same surface of the semiconductor laminate; bonding the pair of the electrodes of the light emitting element and the pair of the connection terminals, respectively, by a molten material; and embedding a surface of the protruding portion of the connection terminals, a surface of the molten material, and a space between the substrate and the light emitting element into a light reflecting member.