Patent ID: 7229022

Claim:
A method for producing a transponder or contactless chip card, said transponder or contactless chip card comprises a first non-conductive substrate and a second non-conductive substrate, an electronic component and an antenna, said first and said second non-conductive substrates having essentially the same outer boundaries, said method comprises the steps of: arranging said electronic component on said first non-conductive substrate serving as a component support; arranging said antenna on said second non-conductive substrate; laminating the first substrate in direct contact with the second substrate using heat, thereby melting the first and second substrates so that said electronic component is countersunk into the substrates and a hermetically sealed connection is provided between said electronic component and said antenna, wherein said laminated non-conductive substrates forms a base card body, the thickness of the base card body being substantially equal to a sum of the thickness of the first substrate and the thickness of the second substrate.