Two-axis actuator with large stage

摘要

Provided is a two-axis actuator having a large stage area. The two-axis actuator includes a substrate, an anchor unit having sides approximately in a rectangular shape, fixed on the substrate, a plurality of first actuating parts actuating in a first direction and separated from the substrate within regions of both sides of the anchor unit, a plurality of second actuating parts actuating in a second direction between the first actuating parts, a rectangular shaped stage that actuates in the second direction, disposed above the second actuating parts, a third actuating part formed in one-body extending in a direction facing each other on the first actuating part, and elevated at a predetermined distance from the stage and the anchor unit, first direction deformable springs that support the first actuating part in inner parts of the anchor unit, and second direction deformable springs formed to fix the second actuating part in an inner part of the third actuating part. A micro-actuator according to the present invention is an X-Y stage micro-actuator for a storage device, that remarkably increases the stage area (storage area) by forming the stage separately on the actuator, and removes inter axis coupling when moving X axis and Y axis. <IMAGE>