| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a keypad plunger structure satisfying a requirement for reduced thickness while maintaining an excellent key press feeling, and a method of manufacturing the keypad plunger structure. <P>SOLUTION: According to the method, a polymer film (such as a PET film) and a plunger material layer (such as a silicone rubber) are integrally molded to form an integrally molded article including the polymer film and a plurality of plungers. The integrally molded article is utilized to attach a plurality of metal domes on a printed wiring board through an adhesive layer. The plungers are located correspondingly to the metal domes. Before performing the integral molding, the other side of the polymer film may be connected with an adhesive and a release paper. This configuration further facilitates the manufacturing. <P>COPYRIGHT: (C)2012,JPO&INPIT |
