Title:
磁気再生ヘッドの製造方法、磁気再生ヘッドおよび磁気再生ヘッドの冷却方法
Document Type and Number:
Japanese Patent JP4776178
Kind Code:
B2
Abstract:
Increasing the output signal from CPP GMR devices by increasing the read current has not previously been considered an option because it would make the device run too hot. This problem has been overcome by using, for the upper and lower leads, materials that differ significantly in their thermoelectric powers. Thus, when DC is passed through the device, from - to + TEP leads, hot and cold junctions are formed and heat is transferred from the micro-device into the leads, resulting in a net local cooling of the device which enables it to operate at higher power. For a GMR device, this translates to a larger output voltage, making it easier, more sensitive, and more reliable to use.
Inventors:
Liu Yue
Zhu Katsu strength
Zhang
Chen Hailing
Zhu Katsu strength
Zhang
Chen Hailing
Application Number:
JP2004152383A
Publication Date:
September 21, 2011
Filing Date:
May 21, 2004
Export Citation:
Assignee:
Headway Technologies, Inc.
International Classes:
H01L35/20; G11B5/39; H01L35/30; H01L35/32; H01L43/08
Domestic Patent References:
| JP10303469A | ||||
| JP8045026A | ||||
| JP11135846A |
Foreign References:
| WO2004051762A1 |
Attorney, Agent or Firm:
Yasushi Santanzaki
Yoichiro Fujishima
Yoichiro Fujishima