Patent ID: 8242396

Claim:
A method for making a keypad assembly, comprising the steps of: providing a main body made of metal, the main body defining a plurality of slots and the slots enclosing a plurality of pressing buttons thereon, each pressing button defining at least one symbol slot, the main body having a contact surface and a operating surface; providing a light-transmissive filling member, the filling member forming a plurality of protruding strips and the protruding strips enclosing a plurality of button areas thereon, each button area having at least one symbol block protruding therefrom; providing a form, the form comprising a supporting member and a pressing head; placing the filling member on the supporting member; positioning the main body on the filling member with the contact surface facing the filling member and the protruding strips engaging in the slots, the symbol blocks being aligned with the symbol slots; and heating and pressing the pressing head until the symbol blocks are heated and softened, and then deformed to fill the symbol slots.