Security element, electronic card, electronic payment terminal and corresponding assembly method.

A method for automatic assembling comprising the following automatic steps:

• obtaining at least one security element, called a security dome, said security element comprising at least:
• a metal part configured to be in contact with at least one electrical circuit of an electronic board;
• and
• a protective part covering said metal part and having a first face comprising an adhesive portion;
• positioning said at least one security element by gluing said adhesive portion of said first face of said protective part on said electronic board at a predetermined location;
• reflow soldering said electronic board, wherein said metal part and protective part are resistant to temperatures used during said reflow soldering.