| 摘要 |
Disclosed is a method of making a dome switch for a button of a mobile terminal. The method comprises a step of preparing an FPCB with a central contact and peripheral two contacts that are separated from each other and exposed out; a step of preparing a dome sheet; an adhesive pattern formation step of preparing an adhesive pattern at a region including a peripheral region surrounding the region where a dome switch is formed on at least one among the dome sheet and the FPCB using a printing method; a metal dome preparation step of arranging a metal dome on at least one among the dome sheet and the FPCB; an arrangement step of arranging the dome sheet and the FPCB with a curable synthetic resin and the metal dome that are interposed therebetween; and a step of bonding the dome sheet and the FPCB using the adhesive pattern, wherein the printing method may be screen printing, gravure printing, or offset printing, or the adhesive pattern formation may be performed by spraying an adhesive through a dispenser nozzle. According to the present invention, the method facilitates an accurate positioning and a uniform thickness of an adhesive pattern when forming the adhesive pattern for bonding a dome sheet covering a metal dome to a region of an FPCB where a dome switch exists on an FPCB for a button of a mobile terminal, thereby attaching the dome sheet to the periphery of the dome switch compared with conventional methods, effectively preventing foreign substances from coming into the dome switch, and additionally, reducing the consumption of materials for covering the dome switch. [Reference numerals] (S10) FPCB preparation step; (S20) Adhesive pattern printing step; (S30) Metal dome arrangement step; (S40) Dome sheet alignment step; (S50) Dome sheet attachment step |
