US 7,259,403 B2 · Card-type LED illumination source

Abstract

An LED illumination apparatus includes at least one connector and a lighting drive circuit. The connector is connected to an insertable and removable card-type LED illumination source, which includes multiple LEDs that have been mounted on one surface of a substrate. The lighting drive circuit is electrically connected to the card-type LED illumination source by way of the connector. The card-type LED illumination source preferably includes a metal base substrate and the multiple LEDs that have been mounted on one surface of the metal base substrate. The back surface of the metal base substrate, including no LEDs thereon, thermally contacts with a portion of the illumination apparatus. A feeder terminal to be electrically connected to the connector is provided on the surface of the metal base substrate on which the LEDs are provided.

Claims9

Dependent claims

An LED illumination source comprising:

at least one LED bare chip, and
a heat-dissipating substrate on which the LED bare chip is flip-chip bonded, the substrate comprising at least one conductive line pattern layer and an insulating layer being made of a composite material including at least an inorganic filler and a resin composition, wherein the conductive line pattern layer has a copper layer, a nickel layer which is plated to the copper layer, and a gold layer which is plated to the nickel layer, the gold layer having a thickness of at least 0.5 μm and being connected to an electrode of the LED bare chip by way of a gold bump wherein the heat dissipating substrate has a metal base, a thermal resistance between the metal base and the LED being 10° C./W or less.

Dependencies are inferred from the claim text.

Facts

Application

11/158,646Filed 22 Jun 2005 · division

Priority

JP 2001-2428579 Aug 2001

Published

US 2005/0237747 A127 Oct 2005

Granted

21 Aug 2007

Term ends

Not estimatedThe source records don’t support an estimate.

Classification59 codes

F21V 29/70
Cooling arrangements: characterised by passive heat-dissipating elements, e.g. heat-sinks
F21K 9/23
Light sources comprising attachment means: retrofit light sources for lighting devices with a single fitting for each light source, e.g. for…
F21S 6/003
Table lamps, e.g. for ambient lighting: for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
F21V 19/003
The light sources being semiconductors devices, e.g. LEDs: fastening of light source holders, e.g. of circuit boards or substrates holding light…

Family

PCT/JP02/08151Parent of this continuation · filed 8 Aug 2002

Application10/374,614Parent of this division · filed 26 Feb 2003

US 2005/0237747 A1Pre-grant publication · published 27 Oct 2005

US 6,949,772 B2Parent of this division

Application10/374,614Parent of this continuation

US 2003/0189829 A1Published application

US 7,259,403 B2This patent

From the US filing history. Foreign family members aren’t listed.

Card-type LED illumination source

Life of this patent

Card-type LED illumination source

Life of this patent

Abstract

Claims9