Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Magnetic memory medium and its manufacturing method

A magnetic storage and media technology, applied in information storage, record carrier manufacturing, recorded information storage, etc., can solve the problems of increased storage surface density, uniform particle size of magnetic particles, and uncertainty of uniform particle size of magnetic particles, etc. Achieve the effects of increasing recording density, high perpendicular anisotropy, and high coercivity

Inactive Publication Date: 2008-07-23
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the magnetic particles of this dielectric material are prepared by self-assembly method, the particle size of the magnetic particles is uniform and uncertain, and if the size of the magnetic particles is further reduced, a superparamagnetic phenomenon will occur, thus limiting the storage areal density of the dielectric material. Further improve
[0007] In order to solve the problem in the prior art that the magnetic particle size of the magnetic medium material is uniform and uncertain, and further reducing the size of the magnetic particle will produce a superparamagnetic phenomenon, thereby limiting the storage density of the medium material, the present invention provides a magnetic material form Highly ordered, high-density magnetic media materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Magnetic memory medium and its manufacturing method
  • Magnetic memory medium and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Referring to Fig. 1 and Fig. 2, the magnetic storage medium 10 selected by the present invention comprises: a substrate, the substrate has a micropore array uniformly arranged; a magnetic material, the magnetic material is deposited in the micropore array of the substrate, wherein, The substrate is a carbon nanotube array 12, and the magnetic material is CoCrXYZ, wherein X is tantalum (Ta), niobium (Nb) or zirconium (Zr), and Y is platinum (Pt), palladium (Pd) or gold (Au) , Z is boron (B), phosphorus (P), nitrogen (N) or oxygen (O). The carbon nanotube array 12 can be formed by passing carbon source gas such as methane into the reaction chamber, and under the action of a catalyst, the carbon nanotube array 12 can be formed after a certain period of chemical reaction. The diameters of the carbon nanotubes are uniformly 1 to 5 nanometers, preferably 1 to 3 nanometers, closely distributed between the carbon nanotubes, and the spacing is 2 to 10 nanometers, and the preferr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
depthaaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

Magnetic storage media is composed of array of nano carbon tubes and magnetic material deposited inside micropores of the said nano carbon tubes. The magnetic material is in columnar bodies limited by shape of nano carbon tube. thus, the columnar bodies possess higher vertical nonistropic magnetism. There is higher coercive force in vertical direction, thus super paramagnetic phenomena will not occur caused by influence from temperature variation. The disclosed magnetic storage media possesses higher recording density reaching to 6.45X1013 bit / in2.

Description

【Technical field】 [0001] The present invention relates to a magnetic storage medium and a manufacturing method thereof, more specifically, the present invention relates to a high-density magnetic storage medium and a manufacturing method thereof. 【Background technique】 [0002] With the development of information technology, the requirements for information storage density are increasing day by day, and the key to increasing its storage capacity on a limited area is to increase the recording density of the medium material. The traditional method is to reduce the size of the medium material so that each bit of information occupies The number of particles reaches hundreds, but with this method, the smaller the particle size of the dielectric material, the less stable its performance, resulting in a superparamagnetic phenomenon. High-density magnetic media materials require media with high magnetization and coercive force. [0003] In order to increase the information storage ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G11B5/74G11B5/62G11B5/84H01F1/047
Inventor 陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com