Abstract: A droplet deposition apparatus includes a standing wave generator including ultrasonic wave oscillators, a droplet supplier to supply a droplet, a workpiece retainer to retain a workpiece in a predetermined space, and a controller configured or programmed to execute causing the standing wave generator to form a standing wave in the space, causing the droplet supplier to supply the droplet to a node of the standing wave generated in the space, and bringing close to each other a predetermined position on the workpiece retained by the workpiece retainer and the node of the standing wave to which the droplet is supplied, to cause the droplet retained at the node of the standing wave to be deposited onto the workpiece.

Abstract: A droplet deposition apparatus includes a standing wave generator including ultrasonic wave oscillators, a droplet supplier to supply a droplet, a workpiece retainer to retain a workpiece in a predetermined space, and a controller configured or programmed to execute causing the standing wave generator to form a standing wave in the space, causing the droplet supplier to supply the droplet to a node of the standing wave generated in the space, and bringing close to each other a predetermined position on the workpiece retained by the workpiece retainer and the node of the standing wave to which the droplet is supplied, to cause the droplet retained at the node of the standing wave to be deposited onto the workpiece.

Abstract: In a heat transfer device, a holder holds a presser such that a portion of the presser protrudes downward. At a position where a holding portion of the holder that is holding the presser is above an inspection surface, a first height at which a foil transfer tool collides against the inspection surface is measured. At a position where the holding portion of the holder is outward of the inspection surface and a portion of a bottom end of the holder other than the holding portion is above the inspection surface, a second height at which the foil transfer tool collides against the inspection surface is measured. If a difference between the first height and the second height is smaller than a predetermined difference, it is determined that the holder is not holding the presser.