Thin film planarization process for fabricating magnetic heads employing a stitched pole structure
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 1, 1994
Grant Date -
N/A
app pub date -
Dec 29, 1992
filing date -
Dec 29, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for fabricating a thin film magnetic head assembly including the procedure of hardening a portion of the upper pole-tip photoresist mask to create a planarizing stitching pedestal in the region where the upper pole-tip overlaps with the upper pole-yoke. The upper pole assembly is deposited in two steps to create a stitched pole consisting of an upper pole-tip joined to an upper pole-yoke element at the stitching pedestal. The method reduces process complexity by eliminating masking steps and also eliminates the usual close alignment requirements for upper insulation and pole-yoke deposition procedures, thereby improving process yield.
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