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cover seal with partial recess for clock head Disclosure Number: IPCOM000014219D
Original Publication Date: 2000-Feb-01
Included in the Prior Art Database: 2003-Jun-19

Publishing Venue



Disclosed is to increase design freedom to make a partial recess at top surface of base wall for servo writing process. In process of Hard Disk Drive assembly (hereinafter HDD), there is a servo pattern writing process usually using external clock head (FIG.1) Cover and seal is assembled to base after servo write process.(FIG.2) One of base function should be higher rigidity which is strongly related to a height of base wall. HDD rigidity improves non-operational shock and operational vibration performance. So a tall wall of base is one of key parameter for HDD design. On the other hand , External servo clock head access to disk. So a wall height is limited to be under clock head as FIG.1