A semiconductor device includes a first ridge and a second ridge extending from a first main surface of a semiconductor substrate. Each file fetcher is configured with both client-side and server-side components to retrieve and serve out data files. Once a mobile device is detected in the define privacy zone, a database is accessed to determine if the mobile device has the features available that are to be disabled. In other embodiments, the planetary gear system is replaced with an intermediate gear assembly external to any interengaging both a drive and driven gear.