Apparatus and methods to reduce hard disk drive manufacturing test time
US9142246B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2014 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Oct 10, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/127
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a plurality of magnetic read/write heads, a system controller and a switching network. Each of the magnetic read/write heads includes a read sensor element configured to perform a read operation and a write element configured to perform a write operation. The switching network is coupled between the plurality of magnetic read/write heads and the controller. Further, the switching network is configured to substantially simultaneously select elements from at least two of the plurality of magnetic read/write heads in response to a command from the controller such that the operations of the selected elements are performed substantially simultaneously to establish a manufacturing parameter of a disk drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.