Patent ID: 8875977

Claim:
An element pressing apparatus for pressing a plurality of electrode terminals of a plurality of electronic components including at least two electronic components having different heights against a respective plurality of electrodes of a board, comprising: a base casing having first and second bases couplable to or separable from each other to form an arrangement space for internally arranging the board and the electronic components while the first and second bases are coupled to each other; oil encapsulated in the arrangement space; an oil seal member that seals the oil in the arrangement space and is deformed depending on a pressure of the oil; and a hydraulic pressure change portion that is supported by the base casing and changes the pressure of the oil, wherein the pressure of the oil changes by the hydraulic pressure change portion to press the oil seal member against the plurality of electronic components and press each of the electrode terminals against each of the electrodes when the board and the plurality of electronic components are arranged in the arrangement space by positioning and placing each of the electrode terminals on each of the electrodes.