Apparatuses and methods are disclosed herein for implementing dormant mode with paging in a WLAN. The outer major surfaces of the wafer are sealed by depositing a metal coating on them. Further, the ultrasound system provides an interface for non-sequentially architectured applications to interact within the sequential architecture of the present invention. The attenuator circuit includes an attenuation matrix including an input terminal to receive the signal and multiple resistors. The switching diodes are electrically coupled to the junction word line. The variable frequency drive is in communication with the flow rate sensor for receiving the flow rate information and the pump motor for controlling the speed of the pump motor.