| 摘要 |
A keypad plunger structure and a method of making the keypad structure, in which, a polymer film (such as a PET film) and a plunger material layer (such as a silicone rubber) are co-molded to form a co-molded article including the polymer film and a plurality of plungers. The co-molded article is utilized to attach a plurality of metal domes on a printed circuit board through an adhesive layer. The plungers are located correspondingly to the metal domes. Before the co-molding process, the other side of the polymer film may be combined with an adhesive and a release paper, which further facilitates the manufacturing process. |
