US2023068464A1PendingUtilityA1

Light-emitting device and method for manufacturing same

Assignee: NICHIA CORPPriority: Jul 2, 2019Filed: Nov 9, 2022Published: Mar 2, 2023
Est. expiryJul 2, 2039(~12.9 yrs left)· nominal 20-yr term from priority
Inventors:Toru Hashimoto
H10H 20/8581H10H 20/853H10H 20/01H10H 20/855H10H 20/0363H10H 20/0362H10H 20/034H10H 20/8512H10H 20/84H10H 20/854H01L 33/56H01L 33/54H01L 33/005H01L 33/641
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Claims

Abstract

A method for manufacturing a light-emitting device includes providing a transparent member having a protrusion formed at an upper surface of the transparent member. A first resin portion is placed on the protrusion in which the first resin portion has a solid form and is made from a first resin material of which the viscosity decreases when heated. A light-emitting element is placed on the first resin portion, the light-emitting element is caused to be self-aligned with respect to the protrusion by reducing a viscosity of the first resin portion by heating to a first temperature. The first resin portion is solidified by cooling.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A light-emitting device, comprising:
 a light-emitting element;   a transparent member provided on the light-emitting element;   a light guide member provided between the light-emitting element and the transparent member, the light guide member comprising a first resin material and a second resin material and covering an upper surface of the light-emitting element, a side surface of the light-emitting element, and a lower surface of the transparent member, a viscosity of the first resin material decreasing when heated, the second resin material being thermosettable; and   a cover member covering at least a portion of a side surface of a stacked body, the stacked body comprising the light-emitting element, the light guide member, and the transparent member.   
     
     
         2 . The light-emitting device according to  claim 1 , wherein the light guide member comprises:
 a first layer in which a concentration of the first resin material is greater than a concentration of the second resin material; and   a second layer in which a concentration of the second resin material is greater than a concentration of the first resin material,   wherein the first layer and the second layer are stacked along a direction connecting the light-emitting element and the transparent member.   
     
     
         3 . The light-emitting device according to  claim 1 , wherein the first resin material is thermoplastic. 
     
     
         4 . The light-emitting device according to  claim 1 , wherein the transparent member comprises:
 a main material made of a transparent resin material; and   a fluorescer particle provided in the main material.

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