IP Library Granted Patent US 9,022,828
Granted Patent B2
US 9,022,828 · App. 13/612,078 · Granted May 5, 2015

Light-emitting device, lighting device including the light-emitting device, and method of manufacturing the light-emitting device

Inventor: Sadato Imai (Narusawa-mura, JP)
Assignees: Citizen Electronics Co., Ltd.; Citizen Holdings Co., Ltd.
H01L33/486H01L33/56H01L24/97H01L2224/48091H01L2224/48227H05B33/02H05B33/10H01L2924/12041
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 9,022,828
App. No.
13/612,078
Granted
May 5, 2015
Kind
B2
Abstract

A light-emitting device includes a light-emitting element with a pair of element electrodes as a first element electrode and a second element electrode positioned at the lower surface of the light-emitting element; a phosphor plate disposed on the upper surface of the light-emitting element; a first resin covering the lower surface and the peripheral side surface of the light-emitting element with the first element electrode and the second element electrode partly appearing from the first resin; and a second resin provided in the phosphor plate.

Claims (27)

1. A method manufacturing a light-emitting device comprising:

adhering an upper surface of a light-emitting element to a lower surface of a phosphor plate;

disposing a first resin on the lower surface of the phosphor plate to cover a peripheral side surface and a lower surface of the light-emitting element with a pair of element electrodes partly appearing from the first resin;

forming a groove along one of peripheral edges of the upper surface of the phosphor plate; and

filling a second resin in the groove.

2. A method manufacturing a light-emitting device comprising:

preparing a phosphor plate assembly;

adhering upper surfaces of a plurality of light-emitting elements with a space between each of the light-emitting elements to a lower surface of the phosphor plate assembly;

disposing a first resin on the lower surface of the phosphor plate assembly to cover a peripheral side surface and a lower surface of each of the light-emitting elements with a pair of element electrodes of each of the light-emitting elements partly appearing from the first resin to form an aggregation;

forming grooves in the phosphor plate assembly included in the aggregation at positions along one of peripheral edges of the upper surface of the phosphor plate assembly adjacent to one of peripheral edges of the upper surface of each of light-emitting elements; filling a second resin into the grooves in the phosphor plate assembly included in the aggregation; and

dicing the aggregation between each of the light-emitting elements to divide the aggregation into a plurality of light emitting devices.

3. A method manufacturing a light-emitting device comprising:

preparing a phosphor plate assembly including grooves provided with a space between each of the grooves; and

adhering upper surfaces of a plurality of light-emitting elements adjacent to the grooves with a space between each of the light-emitting elements, to a lower surface of the phosphor plate assembly,

disposing a white resin on the lower surface of the phosphor plate assembly to cover a peripheral side surface and a lower surface of each of the light-emitting elements with a pair of element electrodes of each of the light-emitting elements partly appearing from the white resin to form an aggregation and to fill the white resin into the grooves in the phosphor plate assembly included in the aggregation; and

dicing the aggregation between each of the light-emitting elements to divide the aggregation into a plurality of light emitting devices.

4. A method manufacturing a light-emitting device comprising:

preparing a phosphor plate assembly including grooves provided with a space between each of the grooves;

adhering upper surfaces of a plurality of light-emitting elements adjacent to the grooves with a space between each of the light-emitting elements, to a lower surface of the phosphor plate assembly;

disposing a first resin on the lower surface of the phosphor plate assembly to cover a peripheral side surface and a lower surface of each of the light-emitting elements with a pair of element electrodes of each of the light-emitting elements partly appearing from the first resin to form an aggregation;

filling a second resin into the grooves in the phosphor plate assembly included in the aggregation; and

dicing the aggregation between each of the light-emitting elements to divide the aggregation into a plurality of light emitting devices.

5. A method manufacturing a light-emitting device comprising:

preparing a phosphor plate assembly including grooves provided with a space between each of the grooves in that a colored resin filled;

adhering upper surfaces of a plurality of light-emitting elements adjacent to the grooves in that the colored resin filled, with a space between each of the light-emitting elements, to a lower surface of the phosphor plate assembly;

disposing a white resin on the lower surface of the phosphor plate assembly to cover a peripheral side surface and a lower surface of each of the light-emitting elements with a pair of element electrodes of each of the light-emitting elements partly appearing from the white resin to form an aggregation; and

dicing the aggregation between each of the light-emitting elements to divide the aggregation into a plurality of light emitting devices.

Assignments (2)
CHANGE OF NAME Recorded May 22, 2017
From: CITIZEN HOLDINGS CO. LTD.
To: CITIZEN WATCH CO., LTD.
Reel/Frame 042527/0306 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 9, 2015
From: IMAI, SADATO
To: CITIZEN ELECTRONICS CO., LTD.; CITIZEN HOLDINGS CO., LTD.
Reel/Frame 034917/0534 →
Priority Claims (1)
JP 2011-206011 · Sep 21, 2011 · national
Continuity (1)
Related Publication 20130069525A1 · Mar 21, 2013