Micro led display panel
US-2024371838-A1 · Nov 7, 2024 · US
Method of fabricating optical devices using laser treatment of contact regions of gallium and nitrogen containing material
US8975615B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8975615-B2 |
| Application number | US-201113291922-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 8, 2011 |
| Priority date | Nov 9, 2010 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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A method for forming optical devices includes providing a gallium nitride substrate having a crystalline surface region and a backside region. The backside is subjected to a laser scribing process to form scribe regions. Metal contacts overly the scribe regions.
First claim
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What is claimed is: 1. An optical device comprising: a gallium and nitrogen containing substrate having a crystalline surface region and a backside opposite the crystalline surface region; at least one ablated region characterized by a v-shaped profile or a trench-shaped profile on the backside of the gallium and nitrogen containing substrate, where sides and a bottom of the at least one ablated region are gallium rich and have a higher gallium concentration than a surface of th…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8975615B2 cover?
- A method for forming optical devices includes providing a gallium nitride substrate having a crystalline surface region and a backside region. The backside is subjected to a laser scribing process to form scribe regions. Metal contacts overly the scribe regions.
- Who is the assignee on this patent?
- Felker Andrew, Vickers Nicholas A, Aldaz Rafael, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification H10H20/819. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 10 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).