Method of assessing recording characteristics of thermally assisted magnetic head
US-2015380029-A1 · Dec 31, 2015 · US
Waveguide having a metal alignment mark
US9105285B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9105285-B2 |
| Application number | US-201213556672-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 24, 2012 |
| Priority date | Jan 10, 2007 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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A waveguide structure includes a metal layer of a predetermined size on a substrate, a lower clad layer on the structure completely covering the metal layer, a core layer of a predetermined size on the lower clad layer at the location corresponding to the metal layer, and an upper clad layer thereon completely covering the core layer.
First claim
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What is claimed is: 1. An apparatus, comprising: a waveguide structure, comprising: a metal layer having a predetermined size provided on a substrate; a lower clad layer provided on the substrate and completely covering the metal layer; a core layer having a predetermined size provided on the lower clad layer at a location corresponding to the metal layer; and an upper clad layer provided on the lower clad layer and completely covering the core layer, wherein the lower clad…
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Physics · mapped topic
- G11B5/314Primary
Physics · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9105285B2 cover?
- A waveguide structure includes a metal layer of a predetermined size on a substrate, a lower clad layer on the structure completely covering the metal layer, a core layer of a predetermined size on the lower clad layer at the location corresponding to the metal layer, and an upper clad layer thereon completely covering the core layer.
- Who is the assignee on this patent?
- Suh Sung-Dong, Cho Eun-Hyoung, Sohn Jin-Seung, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G11B5/314. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 11 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).