Actuator tilt interposer for within-row lapping mount tool for magnetic recording read-write heads

A lapping tool actuation interposer comprising:

• a first element comprising a plurality of interposer pins reactively coupled with a plurality of actuators such that each said interposer pin is configured to receive a respective translational force from a corresponding said actuator for transmission of said respective translational force to a corresponding lapping mount tool angular actuation pin;
• and
• a second element coupled to said first element via a first flexure and a second flexure, and coupled to a fixed frame via a third flexure and a fourth flexure.

A method for applying actuation forces to a lapping mount tool for lapping a row-bar of magnetic sensor devices, wherein said row-bar has an x-axis along the direction of the row and a y-axis along the direction of the width of said row-bar, the method comprising:

• affixing said row-bar to a lapping mount tool fixture;
• actuating each of a plurality of actuators to apply a respective translational force from each said actuator to a corresponding interposer pin of an interposer structure;
• operating a zero z-axis shift flexure system comprising a set of first flexures interconnecting said interposer pins and a rotatable T-structure of said interposer structure and a set of second flexures interconnecting said T-structure with a fixed frame, such that a tendency of said interposer pins to swing upward counterclockwise upon actuation due to bending of said first flexures is offset by said T-structure swinging downward clockwise due to bending of said second flexures, such that said interposer pins translate substantially in the y-axis direction only.

An actuator-to-lapping tool interposer comprising:

• means for applying a zero z-axis shift such that a tendency of interposer pins, housed within said interposer, to swing upward counterclockwise upon y-axis actuation is offset by a T-structure, housed within said interposer, swinging downward clockwise, such that said interposer pins translate substantially in the y-axis direction only.