Patent ID: 8070199

Claim:
An apparatus for picking up semiconductor packages comprising: a picker base having a first main feeding hole connected to a first pneumatic line and a plurality of first transfer holes, and a second main feeding hole connected to a second pneumatic line and a plurality of second transfer holes, the first and second pneumatic lines providing a pneumatic pressure, and an adsorption pad coupled to a lower portion of the picker base and formed with adsorption holes connected to the first and second main feeding holes through the plurality of first and second transfer holes, wherein each of the absorption holes is configured to pick up one of said semiconductor packages, the pneumatic pressure supplied into the first and second main feeding holes to be independently controlled, wherein the first and second main feeding holes are aligned in a dual-layer structure, wherein all the plurality of first and second transfer holes are alternately arranged in the picker base so that each of the plurality of first transfer holes is arranged next to at least one of the plurality of second transfer holes and each of the plurality of second transfer holes is arranged next to at least one of the plurality of first transfer holes, wherein the first and second main feeding holes include a pair of perforation holes formed lengthwise along the picker base, the picker base has a plurality of first connection holes, which are aligned perpendicularly to the first main feeding holes to connect the first main feeding holes to each other, and a plurality of second connection holes, which are aligned perpendicularly to the second main feeding holes to connect the second main feeding holes to each other, the plurality of first and second transfer holes are formed in the picker base so that the plurality of first and second transfer holes can be connected to the first and second main feeding holes, and the picker base is formed at a bottom surface thereof with first and second distribution grooves, which are alternately aligned so as to be connected to the plurality of first and second transfer holes.