Light emitting device and method for producing same
US-9276179-B2 · Mar 1, 2016 · US
Lighting assembly and method for manufacturing a lighting assembly
US11158772B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11158772-B2 |
| Application number | US-201716302498-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 16, 2017 |
| Priority date | May 18, 2016 |
| Publication date | Oct 26, 2021 |
| Grant date | Oct 26, 2021 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A lighting assembly is disclosed which includes a leadframe and at least one light-emitting diode (LED) element arranged on the leadframe. At least a portion of the leadframe is covered with a polyurethane coating arranged to electrically insulate the portion of the leadframe, and at least a portion of the polyurethane covered portion of the leadframe is further covered with a thermally conductive material. A method for manufacturing the lighting assembly is also disclosed.
First claim
Opening claim text (preview).
The invention claimed is: 1. A lighting assembly, comprising: a leadframe having at least a portion covered with a polyurethane coating that electrically insulates the portion of the leadframe, the leadframe further comprising a thermally conductive material at least partially covering the polyurethane coating to provide heat dissipation for the assembly; and at least one light-emitting diode(LED) element on the leadframe, configured to emit light when supplied with electrical power via the leadframe. 2. The lighting assembly according to claim 1 , wherein the polyurethane coating covers an entire surface of the leadframe other than an area where the leadframe receives the electrical power therethrough. 3. The lighting assembly according to claim 2 , wherein the thermally conductive material covers an entire surface of the polyurethane coating other than an area where the at least one LED element is arranged. 4. The lighting assembly according to claim 1 , wherein the thermally conductive material has an in-plane thermal conductivity larger than or equal to 1 W/mK. 5. The lighting assembly according to claim 1 , wherein the polyurethane coating has a thickness larger than or equal to 0.1 μm.
Assignees
Inventors
Classifications
Encapsulations, e.g. protective coatings · CPC title
Interconnections or connectors in packages · CPC title
characterised by changes in properties of the strap connectors during connecting · CPC title
Strap connectors, e.g. thick copper clips for grounding of power devices · CPC title
Interconnections, e.g. lead-frames, bond wires or solder balls · CPC title
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Frequently asked questions
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- What does patent US11158772B2 cover?
- A lighting assembly is disclosed which includes a leadframe and at least one light-emitting diode (LED) element arranged on the leadframe. At least a portion of the leadframe is covered with a polyurethane coating arranged to electrically insulate the portion of the leadframe, and at least a portion of the polyurethane covered portion of the leadframe is further covered with a thermally conduct…
- Who is the assignee on this patent?
- Lumileds Llc
- What technology area does this patent fall under?
- Primary CPC classification H10H20/854. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 26 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).