A system and method for treating feedstocks containing solids, sludges or slurries that contain organics includes introducing the feedstock into a desorption chamber. The method uses, as a network flexibility point, a Multiplex Section Digital Cross Connect MS-DXC and SDH or WDM terminals for mere transport need. Therefore, it is possible to provide a variable hydraulic motor driving device which is capable of preventing braking operation from being excessively long and also capable of preventing a large shock from occurring at a time of stoppage due to a large braking force generated from an early stage of braking operation. The set of inversion parameters includes at least one parameter based on an antipodal sum of the response signal, and may further include parameters based on an antipodal difference and an average of the signal response. The hierarchy is further configured to associate a first pattern in the input data and a second pattern in the input data to a same possible cause of the input data. The semiconductor package includes a circuit board, at least one semiconductor chip mounted on the circuit board, a spacer disposed on the at least one semiconductor chip, the spacer having a thickness of about 5 \u03bcm to about 110 \u03bcm, and an upper surface of the spacer exposed externally; and an encapsulant covering the at least one semiconductor chip.