Abstract: Disclosed is a high voltage output device having a serial-parallel stack structure of capacitors. The high voltage output device includes a substrate includes a capacitor element and a pillar structure provided on an upper surface of the substrate. The substrate includes a first electrode and a second electrode, which have different potentials from each other. The capacitor element is connected to at least one of the first electrode and the second electrode.

Abstract: A semiconductor device fabrication apparatus including a grinder comprising a grinding part, the grinding part configured to grind a first surface of a substrate, a laser emitter configured to emit a femtosecond pulse laser to the first surface of the substrate transferred from the grinder, and a mount configured to attach a die attach film to the first surface of the substrate transferred from the laser emitter, wherein the grinding part is configured to grind the first surface of the substrate, which has been introduced into the grinder, and the laser emitter is configured to emit the femtosecond pulse laser to the ground first surface of the substrate may be provided.

Abstract: Disclosed is a needle-free injector. The needle-free injector includes a first current applying unit that applies a first current, a first coil that receives the first current from the first current applying unit, a second coil that moves to apply pressure to a drug, a housing of which the outside is surrounded by the first coil and in which the second coil is positioned, a drug chamber which is connected to the housing and in which the drug is positioned, and an injection nozzle positioned in the drug chamber to inject the drug.

Abstract: Disclosed is a needle-free injector including a power supply unit, a coil that receives current from the power supply unit, a drug chamber in which a drug is positioned, a housing connected to the drug chamber, a separation membrane that separates the housing and the drug chamber, a metal material adjacent to a separation membrane, and an injection unit positioned in the drug chamber to inject the drug. The coil is positioned outside the housing or outside the drug chamber.