A method of forming memory devices, such as DRAM access transistors, having recessed gate structures is disclosed. The circuit is simplified requiring less area for devising the control circuit while lowering power consumption. In embodiments consistent with the subject matter of this disclosure, foreground content may be rendered to a composing surface, which may be an alpha-enabled surface capable of presenting translucent items. A pulse amplitude of the first driving signal is smaller than that of the second driving signal. To make the client node aware of its program neighborhood, a host server collects application-related information corresponding to application programs hosted by the servers in the network. The invention is characterized in that the power supply base comprises a manual control knob mobile between a neutral position and an activating position, and the kettle comprises transmission means adapted to shift the switch in closed position when the manual control knob is placed in activating position.