Modified contoured crushable structural members and methods for making the same are described. The method also includes presenting a reduced set of device functions to the client when the device operates in an open mode, and presenting an increased set of device functions to the client when the device operates in a secure mode. The first copolymer is then etched forming a first topographic pattern that corresponds to the first phase pattern. Then, the \u201cstring code\u201d, the \u201cstring combination code and position shifting code\u201d, and the \u201cstring combination code of multination language and position shifting code\u201d of the controlling program are established, and the content of the character database is been called.