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Electrical read head having high sensitivity and resolution power and method of operating the same

An electronic reading and reading head technology, which is applied in the field of electronic reading heads with high sensitivity and resolution, can solve the problem that the reading head does not have sensitivity and resolution, and achieve the effect of improving track density

Inactive Publication Date: 2008-12-31
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these read heads do not have sufficient sensitivity and resolution to record and read data at high densities

Method used

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  • Electrical read head having high sensitivity and resolution power and method of operating the same
  • Electrical read head having high sensitivity and resolution power and method of operating the same
  • Electrical read head having high sensitivity and resolution power and method of operating the same

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Embodiment Construction

[0033] Hereinafter, embodiments related to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the thicknesses of layers and regions are exaggerated for clarity.

[0034] figure 1 is a cross-sectional view of a resistive probe type read head. Reference numerals 10, 12, and 14 denote a recording medium, a conductive layer under the recording medium, and a read head, respectively. The illustrated readhead 14 has the same shape as a conventional resistive readhead. The read head 14 has a tip with a surface S facing the recording medium 10 . The distance between the recording medium 10 and the read head 14 is the distance between the recording medium 10 and the surface S. As shown in FIG. Vertical arrows in the recording medium 10 indicate the direction of remnant polarization in the corresponding area. Reference symbol θp denotes a polarization angle between the inclined surface 14 s of the read head 14 and the pola...

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Abstract

An electronic readhead having high sensitivity and resolving power and a method of operating the electronic readhead are provided. The electronic read head includes: a magnetic core portion for recording / reading data on / from a recording medium; and electrode pads for connecting the magnetic core portion to a power source. The surface of the core portion facing the recording medium is a flat surface, and the sides of the core portion are perpendicular to the flat surface.

Description

technical field [0001] The present invention relates generally to a surveying instrument and a method of operating the same, and more particularly to an electronic readhead having high sensitivity and resolving power and a method of operating the same. Background technique [0002] The key to recording and reading data by the read head (probe) method is to increase the sensitivity and resolving power of the read head. In order to record data at high density, the read head must have high resolving power to sense the polarization of a small area in the recording medium. Furthermore, due to the small polarization changes produced, the read head must have high resistance changes and voltage changes, ie high sensitivity. [0003] Various types of read heads, such as a field effect transistor (FET) probe type read head, a resistance probe type read head, and an EFM probe type read head, have been widely used. [0004] These read heads are suitable for measuring physical quantiti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R1/067G01R1/02
CPCB82Y10/00G11B9/02G11B9/04G11B9/1409G11B9/07
Inventor 金庸洙崔在学李柱
Owner SAMSUNG ELECTRONICS CO LTD
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