Samsung Electronics Co., Ltd.

Edward Aguilar

Tho Pham

Young-Hoon Kim

Seong-Woo Kang

Yun-Sik Han

Myeong-Eop Kim

Dong-Ho Oh

Woo-Sung Kim

A servo writer that writes servo information onto a disk of a hard disk drive. The servo writer can write servo information onto a disk of a hard disk drive while the disk is within an inner chamber of a housing. The rotating disk creates a flow of fluid within the inner chamber. The disk is rotated during the servo writing process. The density of a fluid medium within the inner chamber is controlled by a medium control system so that the density of the medium is less than the density of air at one atmosphere. Lowering the density decreases the amplitude of vibrational forces created by the flow of fluid. Decreasing the amplitude reduces errors in the servo writing process. The density can be reduced by pulling a vacuum within the inner chamber. The density can also be reduced by filling the inner chamber with a gas such as helium that has a lower density than air.

Servo track writing for ultra-high TPI disk drive in low density medium condition

A bumper that can be attached to an outer surface of a hard disk drive housing. The bumper may be constructed from a damping material that attenuates a shock load and dampens a resultant vibratory response of a shock event. The bumper may be snapped onto the disk drive housing without using external fasteners.

Shock protection skin bumper for a hard disk drive

Growing community of inventors

San Jose, CA, United States of America

Edward Aguilar