| 摘要 |
<p>A power supply apparatus includes a power supply mechanism (30) which supplies, from an external power supply, electric power to be supplied to an electrostatic chuck (23). The power supply mechanism (30) includes a first conductive annular member (44A, 44B, 44C) fixed to the end portion of a strut (18), and capable of rotating together with the strut, a second conductive annular member (45A, 45B, 45C) fixed to a housing (41), and brought into surface contact with the first conductive annular member, and a first power supply member (27a) which supplies a supplied first voltage to an electrode of the electrostatic chuck via the second conductive annular member and the first conductive annular member.</p> |
