Abstract: An ion implantation apparatus includes an ion beam source for generating an ion beam; an implantation energy controller disposed on a path of the ion beam for controlling the ion implantation energy of the ion beam so that an ion beam having a first implantation energy is created for a first period of time and an ion beam having a second implantation energy is created for a second period of time; a beam line for accelerating the ion beam; and an end station for mounting a substrate, into which the ion beam accelerated by the beam line is implanted onto the substrate.

Abstract: Disclosed is a method of managing a search term inputted to a search server. The method includes maintaining a search pocket database for storing a first search term associated with a user, the first search term received from the user when the user is authenticated, receiving at least one second search term from the user when the user is not authenticated, and storing the second search term in a user terminal associated with the user, in a temporary file. The method further includes providing the second search term to the user by referring to the temporary file when the state of the user is changed from the unauthenticated state to the authenticated state, selecting at least one certain search term from the at least one second search term, according to the user's selection, and storing and managing the selected at least one certain search term in the search pocket database together with the first search term.