Abstract: Provided is a method of evaluating electrode quality, which includes: providing a plurality of electrodes which include a current collector and an active material layer formed on the current collector and have not been roll-pressed; measuring a color coordinate value of the active material layer of each of the plurality of electrodes using an optical instrument and calculating an average value; and evaluating the electrodes as good products when a difference between the color coordinate value measured from the individual electrodes and the average value is no more than a predetermined value and as defective when the difference exceeds the predetermined value.

Abstract: An embodiment resin composition for shielding electromagnetic waves, based on a total weight of the resin composition, includes 20 to 80 wt % of thermoplastic resin, 1 to 50 wt % of a conductive filler, and 0.1 to 30 wt % of an additive.

Abstract: A pedestal of a CVD apparatus includes a raised central portion, a peripheral portion extending around the central portion, and a carrier ring support disposed along the peripheral portion. A carrier ring of the CVD apparatus includes an annular body disposed over the peripheral portion of the pedestal. The carrier ring is mounted to the pedestal by virtue of the carrier ring support, and in such a way that a lower surface of the annular body is spaced vertically from the peripheral portion of the pedestal and the carrier ring is separable from the pedestal in a vertical direction. A drive mechanism cooperates with carrier ring to lift the carrier ring of the pedestal and mount the carrier ring back onto the pedestal.