Manufacturing method for panel switch using movable contact unit and the movable contact unit

A method of manufacturing a panel switch comprising the steps of:

• (a) forming an adhesive layer beneath a base film of an insulating film;
• (b) allowing the adhesive layer to adhesively hold a top portion of a bottom-open, dome-like shaped movable contact made of a conductive metallic sheet having resiliency;
• (c) following the step (b), affixing a release treatment-provided upper surface of a separator to the adhesive layer, with the movable contact being sandwiched between the base film and the separator;
• (d) following the step (c), i) applying heat and pressure to both exterior sides of the base film and the separator;
• ii) forming a portion corresponding to the movable contact on the base film into a projection conforming to a dome-like shape of the movable contact;
• iii) firmly affixing a root portion of the projection on the base film to the separator through affixing the adhesive layer to the separator;
• (e) disposing a fixed contact at a position, on a wiring board, corresponding to the movable contact;
• (f) removing the separator from the movable contact unit;
• and
• (g) affixing the movable contact unit with the adhesive layer to the wiring board so that a position of the movable contact corresponds to a position of a fixed contact.