Method for combining capacitive button electrode on metal film preventing electromagnetic interference

Abstract

The invention discloses a method for combining a capacitive button electrode on a metal film preventing electromagnetic interference. By utilizing a mask mode or a carving mode, the capacitive button electrode is combined with the metal film preventing electromagnetic interference in the same layer, and a metal layer part and a capacitive button electrode part can be separated in the same layer; and the capacitive button electrode part is electrically connected with a circuit board with a capacitive button circuit. The capacitive button electrode and the metal layer are combined in the same layer by a sputtering method, and the conventional combination layer is eliminated, so that the adhesion of the capacitive button electrode is better, the stability of the capacitive button is improved, and the effects of shortening the manufacturing process and saving cost can be achieved further.

Description

technical field [0001] The invention relates to a method for combining capacitive button electrodes on a metal film for preventing electromagnetic interference, in particular to a method for combining capacitive buttons on a metal film for preventing electromagnetic interference by using a mask or engraving method on a plastic shell electrode method. Background technique [0002] figure 1 It is a schematic diagram of a capacitive button structure 1 in the prior art. Such as figure 1 As shown, the capacitive button structure 1 of the prior art includes a plastic shell 11, a metal layer 13, a bonding layer 15, a capacitive button electrode 17, a connecting member 19 and a circuit board 21, wherein the space between the metal layers 13 forms a joint Layer 15, the capacitive button electrode 17 is bonded on the plastic shell 11, and then the capacitive button electrode 17 is electrically connected to the circuit board 21 with the capacitive button circuit by the connecting me...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the capacitive key electrode 17 and the metal layer 13 can be made of the same metal material, and the capacitive key electrode 17 and the circuit board 21 are electrically connected by connecting the capacitive key electrode 17 and the plastic shell 11 and through the connecting member 19. The connection process is complicated, and the stability of connecting different materials through the bonding process is poor, which makes the stability of the capacitive button insufficient, and on the other hand, it also makes the manufacturing cost higher

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