Abstract: A method for restricting usage of a mobile communicator in a well defined area, the method comprising: monitoring protocol signals between the mobile communicator and a mobile communicator network, the mobile communicator in communication with the mobile communication network for MMS services; determining MMS capability of the mobile communicator, and contacting the mobile communicator network to disable access of the mobile communicator to an MMS server in communication with the mobile communicator network.

Abstract: A semiconductor device is produced by a method which comprises forming a conductor pattern in or on a semiconductor layer, covering the surface of the conductor pattern with an antioxidant conductor layer, forming a first insulating layer on the semiconductor layer, forming a lower electrode of a capacitor on the first insulating layer, forming a dielectric layer of an oxygen-containing material on the lower electrode, forming an upper electrode on the dielectric layer, sequentially patterning the upper electrode, the dielectric layer, and the lower electrode in the shape of a capacitor, forming a second insulating layer covering the semiconductor layer, the antioxidant conductor layer, and the capacitor, patterning the second insulating layer thereby simultaneously forming a first opening and a second opening on the upper electrode and the conductor pattern, heating the interiors of the first opening and the second opening and the upper electrode in an oxygen-containing atmosphere, forming a conductor layer