Patent · US Active

Depopulated head stack assembly having a necked dummy mass

US8553367B1 · kind B1 · utility

49Cited by

21References

21Claims

0Family size

Assignee

Western Digital Technologies, Inc. · US

Inventors

Gregory G. Foisy · Tracy, US
Huijie Xu · Milpitas, US

Key dates

Filing date	Aug 12, 2008
Grant date	Oct 8, 2013
Priority date	—
Expiry date	Feb 18, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/5569
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A novel head stack assembly (HSA) is disclosed and claimed. The HSA includes first and second actuator arms. A first head gimbal assembly is attached to the first actuator arm. The first head gimbal assembly includes a read head. A dummy mass is attached to the second actuator arm. The dummy mass includes a mounting plate portion defining a mounting plate width, a neck portion defining a neck width and a neck length, and a distal mass portion defining a distal mass width and a distal mass length. The neck width is less than the mounting plate width and the neck width is less than the distal mass width.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.