The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2002
Filed:
Jul. 14, 2000
Edward S. Murdock, Minneapolis, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A method and apparatus for dissipating heat generated in a sensor element of a vertical magnetoresistive recording head or flux guide magnetoresistive recording head having a recess formed in the lower and/or upper magnetic shields for enhancing efficiency during reading data from a magnetic medium. Heat is dissipated through a non-magnetic metal filler layer ( ) formed in the shield recesses ( ) between an upper ( ) or lower ( ) metal shield and a sensor element ( ) comprising a magnetoresistive head structure. The metal filler ( ) must be non-magnetic, must avoid an electrical short between the sensor element and the upper ( ) or lower ( ) magnetic shield, and must be compatible with the adjacent shield in terms of adhesion thereto and the thermal expansion coefficient thereof. An insulator layer ( ) comprising an electrical insulator is formed between the sensor element ( ) and the metal filler ( ) to insure electrical insulation. The metal filler ( ) acts as a thermal path from the sensor element ( ) to the metal shields ( ).