Within-row stripe height and wedge angle control for magnetic recording read-write heads
US10850364B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2017 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Dec 18, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lapping mount tool and a process for lapping a row of head sliders involves affixing the row to a lapping mount tool fixture, actuating each of multiple first actuation pins to set each head slider for lapping to a respective element target stripe height, and simultaneously lapping accordingly. The process may further involve actuating each of multiple second actuation pins to set each head slider for lapping to a respective target wedge angle, and simultaneously lapping accordingly. Each target wedge angle may be achieved by applying a respective angular force to a compliant elastomer adhered to the fixture and to the row, where such angular forces may be applied through at least two flexures interconnecting a rotatable first structural member and a second structural member of the lapping mount tool, wherein the flexures virtually intersect at and define an axis of rotation about which the angular forces are applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.