Magnetic head manufacturing method forming sensor side wall film by over-etching magnetic shield
US-9196268-B2 · Nov 24, 2015 · US
Magnetic sensor with composite magnetic shield
US8945405B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8945405-B2 |
| Application number | US-201313868515-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 23, 2013 |
| Priority date | Jul 8, 2009 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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A magneto-resistive reader includes a first magnetic shield element, a second magnetic shield element and a magneto-resistive sensor stack separating the first magnetic shield element from the second magnetic shield element. The first shield element includes two ferromagnetic anisotropic layers separated by a grain growth suppression layer.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of forming a magneto-resistive reader comprising: depositing a first shield element, the first shield element comprising two ferromagnetic anisotropic layers separated by a grain growth suppression layer; annealing the first shield element at a magnetic set anneal temperature to form a set annealed first shield; depositing a magneto-resistive sensor stack on the annealed first shield; annealing the magneto-resistive sensor stack at a magnetic…
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Classifications
- G11B5/3912Primary
Physics · mapped topic
- G11B5/84Primary
Physics · mapped topic
- G11B5/39Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8945405B2 cover?
- A magneto-resistive reader includes a first magnetic shield element, a second magnetic shield element and a magneto-resistive sensor stack separating the first magnetic shield element from the second magnetic shield element. The first shield element includes two ferromagnetic anisotropic layers separated by a grain growth suppression layer.
- Who is the assignee on this patent?
- Seagate Technology Llc
- What technology area does this patent fall under?
- Primary CPC classification G11B5/3912. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 03 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).