The rotary screw belongs to the positive displacement compressor family. Positive displacement pumps create flow by applying an expanding cavity on the suction side and a decreasing cavity on the discharge side. Gas that is trapped inside the positive displacement machine is a fixed volume which is then compressed or displaced into the discharge manifold.

Electronic products have seen a huge rise in their popularity and subsequent use over the last few decades. As a result, more of these products were produced, and a large focus on their manufacture was put upon Electronic Manufacturing Services. During this time, Electronic Manufacturing Service (EMS) Companies have focused on printed circuit board fabrication of electronic products,