Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2005-10-11
2005-10-11
Kim, Paul D. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S603070, C029S603110, C029S603140, C029S603160, C029S603180, C360S122000, C360S125330, C360S125330, C360S317000, C427S127000, C427S128000, C451S005000, C451S041000
Reexamination Certificate
active
06952866
ABSTRACT:
Method of manufacturing a thin film magnetic head which can exhibit a high-performance head characteristic without complicating the manufacturing procedure. A coil connection is integrated into one body and constituted part of the thin film coil. A connection middle pattern is provided on the coil connection at the time of forming a pole tip so that the position of the upper surface of the connection middle pattern becomes higher than that of the top pole tip. After the whole portion is covered by an insulating film, the connection middle pattern also can be exposed by polishing the surface of the insulating film until the top pole tip is exposed. Therefore, unlike the case where no connection middle pattern is provided, it is not necessary to form an opening by partially removing part of the insulating film. As a result, the number of manufacturing steps can be reduced.
REFERENCES:
patent: 5208716 (1993-05-01), Lazzari
patent: 5325254 (1994-06-01), Cooperrider
patent: 5654847 (1997-08-01), Yagi et al.
patent: 5936812 (1999-08-01), Terunuma et al.
patent: 5982568 (1999-11-01), Yamamoto et al.
patent: 6317288 (2001-11-01), Sasaki
patent: 6333841 (2001-12-01), Sasaki
patent: 6483662 (2002-11-01), Thomas et al.
patent: 6490126 (2002-12-01), Sasaki
patent: 6578252 (2003-06-01), Sasaki
patent: 6603641 (2003-08-01), Sasaki
patent: 06111242 (1994-04-01), None
patent: A-11-353616 (1999-12-01), None
“Miniature coil winding provides reliability and longevity to disk drive components”; Branch, M.D.; Electrical Electronics Insulatio Conference and Electrical Manufacturing & Coil Winding Conference; Oct. 4-7, 1993; pp.: 255-257.
Iijima Atsushi
Oike Taro
Yoshida Makoto
Kim Paul D.
Oliff & Berridg,e PLC
TDK Corporation
LandOfFree
Method of manufacturing the thin film magnetic head does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing the thin film magnetic head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing the thin film magnetic head will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3439844