| CPC B23K 1/0016 (2013.01) [B23K 1/20 (2013.01); B23K 35/3013 (2013.01); B23K 2101/36 (2018.08); H02N 13/00 (2013.01)] | 9 Claims |

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1. A method of assembling a substrate supporting apparatus, the method comprising:
coupling a conductive rod to an electrode installed in a substrate support provided to support a substrate;
forming a sacrificial layer that surrounds the rod;
bonding the rod and the electrode by melting and infiltrating a filler into a coupling area between the rod and the electrode, while forming a protective layer between the rod and the sacrificial layer by infiltrating the filler into a gap between the rod and the sacrificial layer; and
coupling a shaft to the substrate support, the rod extending through the shaft.
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