Patent ID: 8675305

Claim:
A base unit for use in a disk drive apparatus into which helium, hydrogen, a gas mixture of helium and hydrogen, or a gas mixture of any one of the above and air is filled, the base unit comprising: a base member arranged to support a motor; and a connector electrically connected with the motor; wherein the base member includes: a bottom plate portion arranged to extend in directions perpendicular or substantially perpendicular to a central axis of the motor; a window portion arranged to extend in an axial direction through the bottom plate portion; and a first groove defined in an upper surface of the bottom plate portion around the window portion; the connector includes: a board portion arranged on the upper surface of the bottom plate portion to cover the window portion and the first groove; and an electrode terminal arranged on a lower surface of the board portion; the electrode terminal is arranged to overlap with the window portion in the axial direction; an adhesive is arranged between the upper surface of the bottom plate portion and the lower surface of the board portion; the adhesive is arranged to extend continuously in an annular or substantially annular shape around the window portion; and a portion of the adhesive is arranged in at least a portion of the first groove.