IP Library Granted Patent US 8,809,900
Granted Patent B2
US 8,809,900 · App. 13/429,681 · Granted Aug 19, 2014

Light emitting diode device and producing method thereof

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,809,900
App. No.
13/429,681
Granted
Aug 19, 2014
Kind
B2
Abstract

A method for producing a light emitting diode device includes the steps of preparing a base board; allowing a light semiconductor layer where an electrode portion is provided at one side in a thickness direction to be disposed in opposed relation to the base board, and the electrode portion to be electrically connected to a terminal, so that the light semiconductor layer is flip-chip mounted on the base board; forming an encapsulating resin layer containing a light reflecting component at the other side of the base board so as to cover the light semiconductor layer and the electrode portion; removing the other side portion of the encapsulating resin layer so as to expose the light semiconductor layer; and forming a phosphor layer formed in a sheet state so as to be in contact with the other surface of the light semiconductor layer.

Claims (7)

1. A method for producing a light emitting diode device, provided with a base board including a terminal and a light emitting diode element flip mounted on the base board, comprising

preparing the base board;

allowing a light semiconductor layer where an electrode portion is provided at one side in a thickness direction to be disposed in opposed relation to the base board in the thickness direction, and the electrode portion to be electrically connected to the terminal, so that the light semiconductor layer is flip-chip mounted on the base board;

forming an encapsulating resin layer containing a light reflecting component on a side of the base board having the light semiconductor layer and an electrode portion so as to embed the light semiconductor layer and the electrode portion;

removing the encapsulating resin layer so as to expose the light semiconductor layer; and

forming a phosphor layer formed in a sheet state so as to be in contact with the exposed surface of the light semiconductor layer to form the light emitting diode element including the phosphor layer, the light semiconductor layer, and the electrode portion.

2. The method for producing the light emitting diode device according to claim 1 , wherein in the process of removing the portion of the encapsulating resin layer, the exposed surface of the light semiconductor layer and a remaining surface of the encapsulating resin layer are flush with each other.

Assignments (3)
CHANGE OF NAME Recorded Feb 18, 2026
From: EPISTAR CORPORATION
To: ENNOSTAR CORPORATION
Reel/Frame 075171/0402 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 1, 2017
From: NITTO DENKO CORPORATION
To: EPISTAR CORPORATION
Reel/Frame 044278/0175 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2012
From: SATO, SATOSHI; ITO, HISATAKA; OOYABU, YASUNARI; SHINBORI, YUKI
To: NITTO DENKO CORPORATION
Reel/Frame 027927/0489 →