Patent ID: 7034219

Claim:
A method for manufacturing a keyboard, comprising the steps of: coloring gel-state silicon rubber by mixing pigments with the silicon rubber; rolling the colored silicon rubber into a plurality of sheets with a predetermined thickness; forming a top pad by press working the sheet such that a plurality of keys are arranged on a top surface of the top pad and a plurality of recesses are formed on a bottom surface thereof to correspond to the keys in view of their shapes and location, wherein a first engaging jaw is formed by upward bending and horizontally extending a first end of the top pad; forming a bottom pad by press working the sheet such that the bottom pad has a shape corresponding to the bottom surface of the top pad and a width of the bottom pad is further increased, wherein a second engaging jaw is formed by upward bending and horizontally extending a first end of the bottom pad such that the second jaw is brought into close contact with a bottom surface of the first combining jaw; painting surfaces of the keys through a silk-screen printing method; heating the painted top pad at a temperature of 180 for 10 minutes and drying ink painted on the top pad; and aligning the bottom pad and a flexible printed circuit board with electrical contact portions formed thereon corresponding to the recesses with respect to the bottom surface of the top pad and bonding corresponding edges of the top and bottom pads to finish the keyboard.