# US 2017/0288104 A1 · Light emitting device

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- Number: US 2017/0288104 A1
- Document ID: US20170288104A1
- Status: Published application
- Kind: A1
- Application number: 15/473,505
- Filed: 2017-03-29
- Published: 2017-10-05
- Earliest claimed: 2016-03-31
- Assignees: Nichia Corporation
- Applicants: Nichia Corporation
- Inventors: Hiroaki UKAWA; Shinichi ICHIKAWA
- Web page: https://patentgrep.com/patent/US20170288104A1

## CPC

- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10H 20/8506: {Containers}
- H10H 20/853: characterised by their shape
- H10H 20/854: characterised by their material, e.g. epoxy or silicone resins
- H10H 20/856: Reflecting means
- H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout}
- H10H 20/0364: {of interconnections}
- H10W 72/01515: {Forming coatings}
- H10W 72/075: {of bond wires}
- H10W 72/5366: {the bond wires having kinks}
- H10W 90/756: {between a chip and a stacked lead frame, conducting package substrate or heat sink}
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A light emitting device includes one or more light emitting elements; a first lead on which the one or more light emitting elements are disposed; a second lead electrically connected to the one or more light emitting elements; a resin member supporting the first lead and the second lead, and including one or more projected portions; and a resin frame surrounding the light emitting elements, and covering at least a portion of each of the projected portions.

## Claims

### Claim 1

A light emitting device comprising:
one or more light emitting elements;
a first lead on which the one or more light emitting elements are disposed;
a second lead electrically connected to the one or more light emitting elements;
a resin member supporting the first lead and the second lead, and including one or more projected portions; and
a resin frame surrounding the light emitting elements, and covering at least a portion of each of the projected portions.

### Claim 2 (depends on 1)

The light emitting device according to claim 1,
wherein each of the one or more projected portions includes an upper surface and a lateral surface that are covered by the resin frame.

### Claim 3 (depends on 1)

The light emitting device according to claim 1,
wherein a shortest distance between a portion of the first lead covered by the resin frame and a portion of the one or more projected portions covered by the resin frame is shorter than a width of the resin frame.

### Claim 4 (depends on 1)

The light emitting device according to claim 1,
wherein a height of each of the one or more projected portions is at least 0.4 times, but less than one times a height of the resin frame.

### Claim 5 (depends on 1)

The light emitting device according to claim 1,
wherein the resin frame covers all surfaces of the one or more projected portions.

### Claim 6 (depends on 1)

The light emitting device according to claim 1, wherein:
the resin member has two of the projected portions,
part of the first lead is located between the two projected portions, and
the resin frame is arranged to span from one of the projected portions to the other of the projected portions.

### Claim 7 (depends on 1)

The light emitting device according to claim 1,
wherein a reflectance of the resin frame relative to a peak emission wavelength of the light emitting element is higher than a reflectance of the resin member relative to a peak emission wavelength of the light emitting element.

### Claim 8 (depends on 1)

The light emitting device according to claim 1,
wherein at least one of the one or more light emitting elements and the second lead are electrically connected by a wire, and a junction between the wire and the second lead is covered by the resin frame.

### Claim 9 (depends on 1)

The light emitting device according to claim 1,
wherein the resin frame contains a silicone resin.

### Claim 10

A light emitting device comprising:
one or more light emitting elements,
a first lead including a wide-width portion on which the one or more light emitting elements are placed, a narrow-width portion that extends from the wide-width portion and is narrower than the wide-width portion, and a terminal portion that extends from the narrow-width portion and is wider than the narrow-width portion;
a second lead electrically connected to the one or more light emitting elements;
a resin member supporting the first lead and the second lead, and including one or more projected portions; and
a resin frame surrounding the one or more light emitting elements, and covering at least a portion of the one or more projected portions,
wherein the one or more projected portions of the resin member are at least partially surrounded by the wide-width portion, the narrow-width portion, and the terminal portion.

### Claim 11 (depends on 10)

The light emitting device according to claim 10,
wherein the one or more projected portions are spaced apart from the wide-width portion and the terminal portion.

### Claim 12 (depends on 10)

The light emitting device according to claim 10,
wherein the one or more projected portions at least partially cover the narrow-width portion.

### Claim 13 (depends on 10)

The light emitting device according to claim 10,
wherein each of the one or more projected portions includes an upper surface and a lateral surface that are covered by the resin frame.

### Claim 14 (depends on 10)

The light emitting device according to claim 10,
wherein a shortest distance between a portion of the first lead covered by the resin frame and a portion of the one or more projected portions covered by the resin frame is shorter than a width of the resin frame.

### Claim 15 (depends on 10)

The light emitting device according to claim 10,
wherein a height of each of the one or more projected portions is at least 0.4 times, but less than one times a height of the resin frame.

### Claim 16 (depends on 10)

The light emitting device according to claim 10,
wherein the resin frame covers all surfaces of the one or more projected portions.

### Claim 17 (depends on 10)

The light emitting device according to claim 10, wherein:
the resin member has two of the projected portions,
the first lead is located between the two projected portions, and
the resin frame is arranged to span from one of the projected portions to the other of the projected portions.

### Claim 18 (depends on 10)

The light emitting device according to claim 10,
wherein a reflectance of the resin frame relative to a peak emission wavelength of the light emitting element is higher than a reflectance of the resin member relative to a peak emission wavelength of the light emitting element.

### Claim 19 (depends on 10)

The light emitting device according to claim 10,
wherein at least one of the one or more light emitting elements and the second lead are electrically connected by a wire, and a junction between the wire and the second lead is covered by the resin frame.

### Claim 20 (depends on 10)

The light emitting device according to claim 10,
wherein the resin frame contains a silicone resin.
