Semiconductor devices and methods to form a trench in a semiconductor device are disclosed. First, a plurality of music piece selection periods are set on the basis of user specific information inputted by the user. The common distal lumen reduces the profile of the distal portion of the shaft. The parts are pressed to remove all voids therebetween causing dynamic tension which creates rigidity and then bonded with methods including vulcanization, chemical vulcanization, epoxy and adhesive. New data can be added under the new snaphsot value, preventing overwriting of the prior data, providing deduplication and quick snapshotting. The service entitlement facility may be further configured to determine whether or not a subscriber is entitled to the service of the wireless communications network based on the subscriber entitlement profile stored in the memory and further configured to access the service if the subscriber is entitled to the service.