Abstract: A method for producing a semiconductor device includes forming, on a substrate, a film to be processed. The method further includes forming, on the film to be processed, a first film containing a metallic element and a second film containing at least one of carbon or boron. The method further includes forming an insulating film on the first and second films. The method further includes processing the film to be processed using the first film, the second film, and the insulating film, as a mask.

Abstract: Information about a plurality of participation rewards to be given upon participation in a game event during each unit period in a period in which the event is held, is presented to a user. An upper limit number of unit periods for giving, and the reward contents, are set in advance. In accordance with event participation, participation rewards corresponding to the unit periods in which the participation timings are included are given to the user. The event advancement status is updated on the basis of the event participation by each user. If an ending condition is satisfied, event advancement is ended. If the number of times the unit period has come until the end of the event since the start thereof is smaller than the upper limit number of unit periods in which the rewards can be given, at least one of non-given participation rewards is given to the user.

Abstract: Information about a plurality of participation rewards to be given upon participation in a game event during each unit period in a period in which the event is held, is presented to a user. An upper limit number of unit periods for giving, and the reward contents, are set in advance. In accordance with event participation, participation rewards corresponding to the unit periods in which the participation timings are included are given to the user. The event advancement status is updated on the basis of the event participation by each user. If an ending condition is satisfied, event advancement is ended. If the number of times the unit period has come until the end of the event since the start thereof is smaller than the upper limit number of unit periods in which the rewards can be given, at least one of non-given participation rewards is given to the user.