Apparatus for picking semiconductor devices

An apparatus for picking up semiconductor devices, comprising:

• a base plate having a common air line through which a compressed air is supplied and a plurality of branch air lines that branch from the common air line;
• a pneumatic center for controlling the air flow of the compressed air to the common air line;
• a plurality of picker assemblies mounted on or in the base plate and connected to the branch air lines, respectively;
• and
• a vacuum pressure generator that applies a vacuum pressure for suctioning the semiconductor devices to each of the picker assemblies,
• wherein each picker assembly includes:
• a body having an air chamber that communicates with surroundings outside the picker assembly and an air supply line that is connected to a respective branch air line and supplies compressed air to the air chamber;
• a pickup cylinder penetrating through the body and movably installed in the body in such a configuration that a first end portion of the pickup cylinder is connected to the vacuum pressure generator and a second end portion of the pickup cylinder opposite to the first end portion includes a suction pad to which semiconductor devices are suctioned and adhered;
• and
• a power transformer secured to the pickup cylinder and transforming an air pressure of the air chamber to a driving force for driving the pickup cylinder.