Membrane switch anti-leakage method and an anti-leakage membrane switch

Abstract

The invention provides a membrane switch secrete-divulging-prevention method and a secrete-divulging-prevention membrane switch. The membrane switch secrete-divulging-prevention method comprises the first step of taking base materials to be dried in advance, selectively and partially printing first black non-transparent ultraviolet light solidified printing ink on the base materials and solidifying the base materials, the second step of printing black bottom ink on the areas except the area with the first ultraviolet light solidified printing ink, and the third step of printing second ultraviolet light solidified printing ink on the whole product and solidifying the product. The secrete-divulging-prevention membrane switch comprises a first black non-transparent ultraviolet light solidified printing ink layer which is selectively and partially arranged on the base materials which are dried in advance, and a black bottom ink layer which is arranged on the areas except the first ultraviolet light solidified printing ink layer. The membrane switch is selectively and partially printed by different UV ink, bottom ink and double-sided gum from the base materials, different adhesive force and release force can be produced, and partial intersection and replacement is carried out to prevent wires from being complete after the product is dismounted.

Description

technical field [0001] The invention relates to a method and a device for preventing leakage of a membrane switch, in particular to a method and a device for preventing leakage of a membrane switch used for key products such as POS machines or inputting passwords. Background technique [0002] Membrane switches replace PCB and FPC with silver paste printed circuits, thereby greatly reducing manufacturing costs, and are widely used in button panels, POS machines and other products. [0003] Pos card reader is widely used in business cooperation, shopping malls, supermarkets, shops, express delivery, banks, etc. because it is easy to carry. The shell is seamlessly designed, that is, the end user can only use it, and cannot adjust or insert the decoding program or steal any information. After the POS machine opens the shell or destroys the shell with conventional technology, it is possible to obtain a complete membrane key circuit and hardware, so by analyzing the circuit And ...

AI Technical Summary

Problems solved by technology

[0003] Pos card reader is widely used in business cooperation, shopping malls, supermarkets, shops, express delivery, banks, etc. because it is easy to carry. The shell is seamlessly designed, that is, the end user can only use it, and cannot adjust or insert the decoding program or steal any information. After the POS machine opens the shell or destroys the shell with conventional technology, it is possible to obtain a complete membrane key circuit and hardware, so by analyzing the circuit And some information may cause user information to be stolen

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