Patent ID: 11926041
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Handling (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A surface structure comprising:
a body;
a plurality of three-dimensional micro pillar structures which are attached to the body at a certain angle; and
a wire which supplies a voltage to the plurality of three-dimensional micro pillar structures,
wherein each of the plurality of three-dimensional micro pillar structures comprises:
a pillar which is attached to the body at a certain angle and is formed integrally with the body;
a conductive material which is applied to surround the pillar; and
an insulating material coated to surround the conductive material in order to be insulated from an opposite surface,

wherein the voltage supplied through the wire is supplied to the conductive material,
wherein a passage for providing the wire is formed under the plurality of three-dimensional micro pillar structures of the body,
wherein the plurality of three-dimensional micro pillar structures are arranged on the body in rows and columns,
wherein the passage for providing the wire is formed along the columns of the plurality of three-dimensional micro pillar structures,
wherein the voltage supplied to the plurality of three-dimensional micro pillar structures comprises a positive (+) voltage and a negative (−) voltage, and
wherein the positive (+) voltage and the negative (−) voltage are alternately supplied to the plurality of three-dimensional micro pillar structures in accordance with column positions of the plurality of three-dimensional micro pillar structures attached to the body.