Patent attributes
A dome switch button is installed on a circuit board. The dome switch button includes an elastic piece, a conductive piece and a buffering element. The elastic piece is located over the conductive piece. The buffering element is located under the conductive piece and electrically connected with the circuit board. When the elastic piece is subjected to elastic deformation to trigger the conductive piece, an electric signal is generated. The buffering element is electrically connected with the circuit board. Moreover, a first electric pad and a second electric pad of the circuit board are covered by the buffering element. The electricity from the first electric pad and the second electric pad of the circuit board can be transferred to the conductive piece through the buffering element. Consequently, the conductive piece can be electrically connected with the circuit board without the need of using additional conductor lines.