IP Library Granted Patent US 6,896,393
Granted Patent B2
US 6,896,393 · App. 10/422,629 · Granted May 24, 2005

Light emitting module

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Quick Facts
Patent No.
US 6,896,393
App. No.
10/422,629
Granted
May 24, 2005
Kind
B2
Abstract

By use of a simple structure, also without enlarging thickness and size too much, provided is a light emitting module which can improve heat dissipation of a light emitting component. On a surface of a wiring substrate, a pair of lands face to each other, and two wiring line is connected to the land, respectively. A mounting side outside electrode of a light emitting component is connected to a lead frame to which a light emitting element is die-bonded, and a non-mounting side outside electrode is connected to a lead frame which is connected to the light emitting element through a bonding wire. And, the mounting side outside electrode is bonded to the land by solder, and the non-mounting side outside electrode is bonded to the land by solder and thereby, the light emitting component is mounted on the wiring substrate. A line width of the wiring line at a side to which the mounting side outside electrode of the light emitting component is soldered is made to be larger than a line width of the wiring line at a side to which the non-mounting side outside electrode is soldered.

Claims (2)

1. A light emitting module in which a light emitting element is mounted on a wiring substrate, wherein a heat dissipation function is given to a wiring portion which is formed on the wiring substrate and connected to the light emitting element,

wherein, out of the wiring portions formed on the wiring substrate, heat dissipation of a wiring portion which is mounted on the light emitting element and is connected to the light emitting element is made to be higher than heat dissipation of a wiring portion which is not mounted on the light emitting element and is connected to the light emitting element.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 10, 2021
From: OMRON CORPORATION
To: TOHOKU DENSHI CO., LTD.
Reel/Frame 055219/0844 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 28, 2003
From: MAKUTA, ISAO
To: OMRON CORPORATION
Reel/Frame 014312/0512 →