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:
Jul. 02, 2002
Filed:
Sep. 30, 1999
Toru Inoue, Tokyo, JP;
Koichi Terunuma, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
An object of the invention is to improve the thermal conductivity and the hardness of a first shield gap film and a second shield gap film. Another object is to improve the thermal conductivity while decreasing the stress. The first shield gap film and the second shield gap film are formed of an insulating film which includes at least one of BN, SiN or CN as the main component, a little Ar and oxygen. Higher thermal conductivity can be obtained by using the insulating film which includes at least one of BN, SiN, or CN so that the heat generated in an MR element can be effectively dissipated. In addition, including Ar improves the hardness so that excessive polishing can be suppressed at the time of forming the air bearing surface. Moreover, including oxygen decreases the stress and exfoliation of the first and the second shield gap films can be avoided.