all air in planar space 140 to escape prior to submergence in the embodiment of fig6 second cleaning fixture 600 employs an incline of 45 degrees from vertical in several embodiments this angle is thought to be a fair compromise between the needs of a higher angle for purposes of reducing the time to fill solvent tank 210 or increasing the speed with which the cleaning fixture may be lowered into cleaning solution 220 and the desire of a lower angle to facilitate the agitation or centrifugal extraction of cleaning solution 220 depending on the particular configuration of the cleaning fixture however other angles of inclination ranging from a slight tilt from horizontal to a fully vertical position will also work well such as the 30 degrees utilized in first cleaning fixture 500 or the 90 degrees employed in third cleaning fixture 700 both the agitation of flip chip assemblies 100 and the extraction of cleaning solution 220 from flip chip assemblies 100 are affected by the angle of incline and the angle of orientation with respect to the rotational axis of the particular cleaning fixture for example third cleaning fixture 700 provides excellent extraction because the parts are held radially with respect to the rotational axis however that same fixture provides poor agitation because of that same orientation agitation may.