Magnetic recording write apparatus having a stepped conformal trailing shield

A data storage device comprising:

• a media,
• a substrate having a media-facing surface (MFS), and
• a magnetic apparatus coupled with the substrate, the magnetic apparatus including a pole, a trailing shield, a write gap and at least one coil for energizing the pole, the pole including a leading surface and a trailing surface opposite to the leading surface, the trailing surface having a first portion and a second portion adjoining the first portion of the trailing surface, the first portion of the trailing surface adjoining the MFS being oriented at a bevel angle from a direction perpendicular to the MFS, the bevel angle being greater than zero and less than ninety degrees, the second portion of the trailing surface commencing a trailing surface distance from the MFS, the first portion of the trailing surface being between the second portion of the trailing surface and the MFS, the trailing shield having a pole-facing surface, the pole-facing surface including a first portion, a second portion, a third portion and a fourth portion, the first portion of the pole-facing surface adjoining the MFS and being oriented at a first trailing shield angle from the direction perpendicular to the MFS, the first trailing shield angle being substantially the same as the bevel angle, the second portion of the pole-facing surface being oriented at a second trailing shield angle greater than the first trailing shield angle, the third portion of the pole-facing surface being oriented at a third trailing shield angle substantially the same as the first trailing shield angle, the fourth portion being oriented at a fourth trailing shield angle from the direction perpendicular to the MFS, the second portion of the pole-facing surface being between the first portion of the pole-facing surface and the third portion of the pole-facing surface, the third portion being between the second portion of the pole-facing surface and the fourth portion of the pole-facing surface, the fourth trailing shield angle being greater than the third trailing shield angle and not more than ninety degrees, the fourth portion adjoining the third portion of the pole-facing surface at a fourth portion distance from the MFS greater than the trailing surface distance, the write gap being between the trailing shield and the pole, the write gap having a first thickness adjacent to the first portion of the pole-facing surface, a second thickness adjacent to the second portion of the pole-facing surface and a third thickness adjacent to the third portion of the pole-facing surface, the first thickness being substantially constant, the second thickness being a variable thickness, the third thickness being substantially constant and greater than the first thickness.

A method for providing a magnetic write apparatus having a media-facing surface (MFS) comprising:

• providing a pole including a leading surface and a trailing surface opposite to the leading surface, the trailing surface having a first portion and a second portion adjoining the first portion of the trailing surface, the first portion of the trailing surface adjoining the MFS being oriented at a bevel angle from a direction perpendicular to the MFS, the bevel angle being greater than zero and less than ninety degrees, the second portion of the trailing surface commencing a trailing surface distance from the MFS, the first portion of the trailing surface being between the second portion of the trailing surface and the MFS, the second portion of the trailing surface being oriented substantially at the direction perpendicular to the MFS;
• providing a trailing shield having a pole-facing surface, the pole-facing surface including a first portion, a second portion, a third portion and a fourth portion, the first portion of the pole-facing surface adjoining the MFS and being oriented at a first trailing shield angle from the direction perpendicular to the MFS, the first trailing shield angle being substantially the same as the bevel angle, the second portion of the pole-facing surface being oriented at a second trailing shield angle greater than the first trailing shield angle, the third portion of the pole-facing surface being oriented at a third trailing shield angle substantially the same as the first trailing shield angle, the fourth portion being oriented at a fourth trailing shield angle from the direction perpendicular to the MFS, the second portion of the pole-facing surface being between the first portion of the pole-facing surface and the third portion of the pole-facing surface, the third portion being between the second portion of the pole-facing surface and the fourth portion of the pole-facing surface, the fourth trailing shield angle being greater than the third trailing shield angle and not more than ninety degrees, the fourth portion adjoining the third portion of the pole-facing surface at a fourth portion distance from the MFS greater than the trailing surface distance;
• providing a write gap between the trailing shield and the pole, the write gap having a first thickness adjacent to the first portion of the pole-facing surface, a second thickness adjacent to the second portion of the pole-facing surface and a third thickness adjacent to the third portion of the pole-facing surface, the first thickness being substantially constant, the second thickness being a variable thickness, the third thickness being substantially constant and greater than the first thickness;
• and providing at least one coil for energizing the pole.