Printed circuit board for information safety protection
A printed circuit board and information security technology, which is applied to printed circuit components and other directions, can solve problems such as attack, high cost, and complex processing technology, and achieve the effect of reducing manufacturing cost and difficulty and improving space utilization
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[0018] Figure 1-6 Shown is a preferred embodiment of the information security protection circuit board 1 of the present invention. Such as Figure 1-3 As shown, the information security protection circuit board of the present invention includes a top layer 11, a first dielectric layer 21, a first conductive inner layer 12, a second dielectric layer 22, a second conductive inner layer 13, and a third dielectric layer Layer 23, a fourth conductive inner layer 14, a fourth dielectric layer 24, a bottom layer 16 and a hollow portion 30.
[0019] Such as figure 1 As shown, several pads 110 are provided on the upper surface of the top layer 11 for connection with the core circuit board to be protected, so that interference signals from the core circuit board can be transmitted to the safety protection circuit of the present invention through the pads 110 plate. In this embodiment, the core circuit board to be protected is taken as an example of a main board of a POS machine.
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