Conditioning fluid flow into a proximity head is provided for fluid delivery to a wafer surface. The basic component composition of the MnZn ferrite includes 44. The video decoder converts an external analog video data to a digital video data. The exterior of the flexible flanges extends outwardly away from the central portion beginning at the distal end of the central portion and is angled back in towards the central portion near the base of the central portion so as to form a shoulder between the flexible flanges and the head of the fastener. At least one embodiment of a method includes generating a repetitive wave; receiving an input signal and a complement of the input signal; providing a 3-level output signal; and filtering a feedback signal, the means for filtering including at least one of the following: a 0th order filter, and an even order filter. The electronic apparatus include: a memory unit which downloads a CAS client from a server and stores the CAS client, a communication unit which receives a message to change a storage location of the CAS client from the server, and a controller which changes a storage location of the CAS client and stores the storage location according to the message received from the server.