| 摘要 |
Provided is a self power feeding electrostatic chuck (8) which can feed power that an attracting electrode (3) uses, while generating power during a time when substrate is being processed. An electrostatic chuck (8) holds the substrate by attraction in a substrate processing apparatus (11) which processes the substrate by generating optical energy. The electrostatic chuck has an electrode sheet (5) provided with the attracting electrode (3), a metal base (1) having the electrode sheet (5) stacked on the upper surface side, an internal power supply which obtains power to be supplied to the attracting electrode (3), and a voltage increasing circuit (7) which increases the voltage of the power obtained by the internal power supply. The internal power supply is a solar cell (6), and the electrostatic chuck (8) converts optical energy into power while the substrate is being processed, and the substrate is held by attracting the substrate to the electrode sheet (5). |
