Method of forming magnetic pole section of perpendicular magnetic recording type thin-film magnetic head and manufacturing method of perpendicular magnetic recording type thin-film magnetic head
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 4, 2012
Grant Date -
Oct 6, 2011
app pub date -
Apr 2, 2010
filing date -
Apr 2, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of forming a magnetic pole section of a perpendicular magnetic recording type thin-film magnetic head and a method of manufacturing a perpendicular magnetic recording type thin-film magnetic head that include forming on an under layer a resist pattern having an opening, forming a first nonmagnetic layer, forming a first magnetic layer forming a magnetic layer pattern, removing the resist pattern and then applying a resist layer onto a first nonmagnetic layer and a magnetic layer pattern, developing or ashing partway the applied resist layer and baking the remaining resist layer, removing the first nonmagnetic layer from at least a side surface of the magnetic layer pattern by etching with the baked resist layer being left, removing all of the resist layer and then forming a second nonmagnetic layer on at least the magnetic layer pattern, and forming a second magnetic layer on the formed second nonmagnetic layer.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully