Disk drive having airflow adjusting mechanism and thin-plate member incorporated therein

A disk drive comprising:

• a casing having an inner wall surface defining a recess;
• a rotatable storage disk arranged in said recess of said casing and having a recording surface;
• an actuator arranged in said recess of said casing at a location near said storage disk, said actuator carrying a head section to be opposed to said recording surface of said storage disk and causing said head section to perform a tracking operation relative to said recording surface;
• and
• an airflow adjusting mechanism for adjusting an airflow generated around said storage disk in said recess of said casing due to a rotation of said storage disk, said airflow adjusting mechanism comprising a thin-plate member having a flexibility that permits said thin-plate member to follow a shape of said inner wall surface of said casing, said thin-plate member comprising a substrate layer having a major side and a back side opposite to said major side, a plurality of minute protrusions formed on said major side and an adhesive layer attached to said back side of said substrate layer, said thin-plate member being fixedly attached to said inner wall surface of said casing through said adhesive layer with said plurality of minute protrusions being exposed to said recess of said casing.