摘要 |
An electrostatic chuck is configured for electrostatically securing a wafer while limiting charge on the wafer and physical contact between the electrostatic chuck and the wafer. The electrostatic chuck has a pair of electrodes and at least one support pin electrically isolated from the electrodes. The top portion of the support pin protrudes above the top surface of the electrodes. The support pin can be such that the top portion of the support pin is adjustable with respect to the top surfaces of the electrodes. |