Device for protecting an electronic component

1. An electronic system comprising:

a printed circuit having first and second opposite surfaces and at least one through opening;

an electronic component attached to the second surface;

a first device of protection against access attempts on the first surface side;

a second protection device at least partially covering, on the second surface side, the electronic component, and comprising at least one tab extending in the through opening and attached to the printed circuit, said electronic component being distinct from said first and second protection devices, said tab comprising at least one conductive portion electrically contacting at least one first conductive track of the first surface,

wherein the second protection device comprises at least one second conductive track connected to the first conductive track at the tab, and

wherein the tab protrudes from the opening on the side of the first surface, is folded back against the first surface and is attached to the first surface at one end.

2. The system of claim 1 , wherein the tab is attached to the walls of the opening.

3. The system of claim 1 , wherein the second protection device comprises at least one flexible film comprising third and fourth opposite surfaces, the third surface being oriented towards the electronic component, the second conductive track being arranged on the third surface.

4. The system of claim 3 , wherein the second protection device comprises a conductive layer covering the fourth surface.

5. The system of claim 1 , wherein the first protection device comprises an additional flexible film at least partially covering the first surface of the printed circuit and at least one third conductive track extending on the additional flexible film at least at the mounting between the tab and the printed circuit, the printed circuit comprising at least one fourth conductive track, the third conductive track being connected to the fourth conductive track.

6. The system of claim 1 , wherein the printed circuit and the first and second protection devices are contained in a package and wherein the first protection device comprises a mobile or deformable element comprising a first conductive portion, the printed circuit comprising second and third conductive portions at least partially facing the first conductive portion, the mobile element being configured to be moved or deformed between a first position, in the presence of the package, in which the first conductive portion is in contact with the second and third conductive portions and a second position, when the package is at least partially open, in which the contact between the first conductive portion and the second and third conductive portions is interrupted.

7. The system of claim 1 , wherein the system is an electronic payment terminal.

8. A method for manufacturing the electronic system of claim 1 , comprising the steps of:

forming the second protection device;

attaching the electronic component to the second surface of the printed circuit;

placing the second protection device on the second surface by introducing the tab into the opening, the second protection device at least partially covering the electronic component;

attaching the tab to the printed circuit on the side of the first surface; and

placing the first protection device on the first surface side.

9. The method of claim 8 , wherein the step of forming the second protection device is carried out by folding of a flexible printed circuit.