Abstract: A handler for testing semiconductor devices is disclosed which is capable of simplifying the process carried out in an exchanging station, namely, the process of loading/unloading semiconductor devices in/from test trays, and greatly increasing the number of simultaneously testable semiconductor devices.

Abstract: The present invention relates to a socket assembly for testing semiconductor device comprising a socket board electrically connected to an outside testing device wherein a plurality of connection pins connected to leads of a semiconductor is provided; a socket guide mounted to cover the socket board, with an open part formed so that the semiconductor may in/out, thereby connecting the semiconductor to the connection pins of the socket board; and a spacer interposed between the socket board and the socket guide for maintaining a predetermined distance between the semiconductor and the socket board by touching an surface of the semiconductor having moved into an inside of the socket guide before a surface of each carrier touches the socket guide. According to the present invention, the balls or the leads of each semiconductor may be pressed to the connection pins of the socket in a predetermined depth without replacing the carriers though the semiconductors have the different thicknesses.

Abstract: The present invention relates to a transfer device of a handler for testing semiconductor device in which a pitch between each head of picker heads may be adjusted to the discretionary one as wanted without replacing a cam plate. The transfer device of a handler for testing semiconductor device comprises a base part, a plurality of picker heads mounted movable horizontally on the base part for securing/detaching the semiconductors, a cam plate movably mounted on the base part, a plurality of cam grooves formed inclined therein, connection parts, wherein each first side thereof is secured to each picker head and each second side thereof is relative-movably connected to each cam groove, thereby connecting each picker head with each cam groove, and a driving unit for reciprocating the cam plate so as that the picker heads may be varied to a discretionary position of the base part.

Abstract: The present invention discloses a tray transferring apparatus for transferring a handling tray on which semiconductor devices are mounted. The tray transferring apparatus stably transfers the semiconductor devices not to be scattered or separated from the handling tray. The tray transferring apparatus includes a fixing means installed on a main frame, for supporting a fixed tray, a correcting means installed on the main frame, for correcting the fixed tray supported by the fixing means, a gripping means installed on the main frame, for gripping a handling tray, and at least one sensor installed on the main frame, for sensing gripper plates and the handling tray. As a result, the tray transferring apparatus prevents the semiconductor devices from being scattered or separated from the handling tray, by fixing the fixed tray by first and second fixing members, correcting right/left inclination of the fixed tray by the correcting means, and precisely covering the upper portion of the handling tray.