Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2006-08-08
2006-08-08
Evans, Jefferson (Department: 2652)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C360S317000, C360S319000, C360S125330
Reexamination Certificate
active
07088560
ABSTRACT:
Provided are a thin film magnetic head capable of inhibiting an excessive temperature rise while reducing its size in accordance with a higher recording density, and obtaining a higher read output, a method of manufacturing the same, and a magnetic disk drive using the thin film magnetic head. A heat dissipation layer for transferring heat generated in a magnetic transducer film to outside is disposed adjacent to the magnetic transducer film on a side, the side being opposite to a side facing a recording medium. In a gap layer for electrically insulating between the magnetic transducer film and a pair of shield layers, a portion of the gap layer in contact with an end surface of the magnetic transducer film on a side, the side being opposite to a side facing the recording medium is formed so as to have a thin thickness ranging from 2 nm to 30 nm inclusive. Thereby, the heat generated in the magnetic transducer film can be more effectively dissipated than previously possible, and a temperature rise can be inhibited. Therefore, an increase in electrical resistance can be inhibited, and a higher read output can be obtained.
REFERENCES:
patent: 5644455 (1997-07-01), Schultz
patent: 5930086 (1999-07-01), Chaug et al.
patent: 5966273 (1999-10-01), Matsumoto et al.
patent: 6154347 (2000-11-01), Sasaki
patent: 6198608 (2001-03-01), Hong et al.
patent: 6330128 (2001-12-01), Chang et al.
patent: 6381094 (2002-04-01), Gill
patent: 6396670 (2002-05-01), Murdock
patent: 6636395 (2003-10-01), Terunuma
patent: 6643105 (2003-11-01), Nakamoto et al.
patent: 6665136 (2003-12-01), Clinton et al.
patent: 6700752 (2004-03-01), Dimitrov et al.
patent: 6724587 (2004-04-01), Gill
patent: 6765768 (2004-07-01), Saito
patent: 6859343 (2005-02-01), Alfoqaha et al.
patent: 6914750 (2005-07-01), Garfunkel et al.
patent: 6950280 (2005-09-01), Rea et al.
patent: 2001/0043446 (2001-11-01), Barlow et al.
patent: 61-242313 (1986-10-01), None
patent: A 6-223331 (1994-08-01), None
patent: A-6-274830 (1994-09-01), None
patent: A 10-222816 (1998-08-01), None
patent: 2000-018222 (2000-01-01), None
patent: 2000-182222 (2000-06-01), None
patent: 2000-340860 (2000-12-01), None
patent: A 2000-353308 (2000-12-01), None
patent: A-2001-56914 (2001-02-01), None
Kudo Yoshihiro
Terunuma Koichi
Evans Jefferson
Oliff & Berridg,e PLC
TDK Corporation
LandOfFree
Thin film magnetic head including a heat dissipation layer,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thin film magnetic head including a heat dissipation layer,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin film magnetic head including a heat dissipation layer,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3714641