Perpendicular magnetic recording medium and magnetic recording and reproducing apparatus
US-9214177-B2 · Dec 15, 2015 · US
Laminating magnetic cores for on-chip magnetic devices
US2016260451A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016260451-A1 |
| Application number | US-201615149727-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 9, 2016 |
| Priority date | Feb 6, 2013 |
| Publication date | Sep 8, 2016 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A laminating structure includes a first magnetic layer, a second magnetic layer, a first spacer disposed between the first and second magnetic layers and a second spacer disposed on the second magnetic layer.
First claim
Opening claim text (preview).
What is claimed is: 1 . An on-chip magnetic device consisting of: a first magnetic unit consisting of first and second magnetic layers and a non-magnetic spacer layer therebetween, wherein the non-magnetic spacer layer has a thickness of 5 to 20 nanometers and is selected from the group consisting of copper, molydenum, zinc, rubidium, gold, silver, selenium, tellurium, sulfur, phosphorous, gallium, chromium, rhenium, indium, tin, nickel phosphorous, nickel boron, and non-magnetic alloys thereof; at least one additional magnetic unit consisting of first and second magnetic layers and the non-magnetic spacer layer therebetween; a resistive spacer disposed between the first and the at least one additional magnetic units, wherein the resistive spacer is at a thickness of 100 nm to 1 micron and is selected from the group consisting of selenium, bismuth, tellurium, phosphorous, sulfur, germanium, antimony, and alloys thereof that can be electrochemically reduced, and wherein a total thickness of the first and second magnetic layers plus the non-magnetic spacer layer within the magnetic unit or the at least one additional magnetic unit consisting of first and second magnetic layers and the non-magnetic spacer layer therebetween is within a skin depth, wherein the skin depth is a depth below a surface of a respective magnetic layer at which current density has fallen to 1/e of surface current density.
Assignees
Inventors
Classifications
- G11B5/66Primary
the record carriers consisting of several layers · CPC title
via a non-magnetic spacer · CPC title
- C25D5/10Primary
Electroplating with more than one layer of the same or of different metals (for bearings C25D7/10) · CPC title
Magnets · CPC title
the spacer being semiconducting or insulating, e.g. for spin tunnel junction [STJ] · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016260451A1 cover?
- A laminating structure includes a first magnetic layer, a second magnetic layer, a first spacer disposed between the first and second magnetic layers and a second spacer disposed on the second magnetic layer.
- Who is the assignee on this patent?
- IBM
- What technology area does this patent fall under?
- Primary CPC classification G11B5/66. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Sep 08 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).