概要（Overview）

Plasma systems 400 and 660are low-pressure microwave plasma systems for cleaning advanced chip packages prior to die attach, wire bond and encapsulation. The electrode-free energy feeding is the key factor for processing substrates in their original, unslotted magazines. Microwaves of 2.45 GHz are simply applied through a window in the wall of the vacuum chamber producing a largely extended plasma there. Unslotted magazines are processed in a downstream configuration, slotted magazines are more properly placed on a rotating platform. Any size of magazine can be processed.