Token microchip and processes for manufacturing such a token

The invention concerns a token (10') comprising a thermoplastic body (12') with parallel surfaces (13') and (14') and provided with a cavity (15') receiving a silicon chip identification device (16'). The cavity (15') comprises a front opening (17') wherein a solid-state deformable plastic plug or lid (19') is inserted, the plug being then welded to the wall of the cavity (15') with a combination of heat and pressure so as to close the cavity and completely incorporate the identification device (16'). The identification device (16') is capable of communicating without contact by RF waves with a reading station. The game token can be produced by one of two production methods, one being adapted to thermoplastic materials, the other to thermosetting materials.