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US 10,068,590 B2Granted
Method of making magnetically shielded write transducers
AssigneeInternational Business Machines Corporation
InventorsRobert G. Biskeborn, Philipp Herget
Life of this patent
Estimating the term…
Abstract
A method according to one embodiment includes forming a lower shield of a shield structure; forming a portion of a magnetic yoke for each of at least two write transducers above the lower shield of the shield structure; and forming an upper shield of the shield structure above the portions of the yokes of each of two of the at least two write transducers, the shields being formed of a magnetically permeable material, wherein the upper and lower shields are magnetically connected.
Claims17
A method, comprising:
- forming a lower shield of a shield structure;
- forming a portion of a magnetic yoke for each of at least two write transducers above the lower shield of the shield structure;
- and
- forming an upper shield of the shield structure above the portions of the yokes of each of two of the at least two write transducers,
- the shields being formed of a magnetically permeable material,
- wherein the upper and lower shields are magnetically connected,
- wherein the at least two write transducers are positioned adjacent each other and aligned along a line oriented generally perpendicular to a direction of travel of a magnetic medium thereacross when the write transducers are in use.
4 more elements
A method, comprising:
- forming a lower shield of a shield structure;
- forming a portion of a magnetic yoke for each of at least two write transducers above the lower shield of the shield structure;
- and
- forming a thin film coil structure adjacent to the yoke;
- and
- forming an upper shield of the shield structure above the portions of the yokes of each of two of the at least two write transducers,
- the shields being formed of a magnetically permeable material,
- wherein the upper and lower shields are directly magnetically connected,
- wherein the at least two write transducers are positioned adjacent each other and aligned along a line oriented generally perpendicular to a direction of travel of a magnetic medium thereacross when the write transducers are in use.
6 more elements
Dependencies are inferred from the claim text.