Abstract: An adapter for a portable integrated circuit device of the chip card variety has a reduced format in comparison with the standard mini-card format. The device with a reduced format includes a body on which a microcircuit defining contact pads is disposed. A support which has a standard mini-card format is provided with a cavity having the dimensions of the device with a reduced format. The device is detachably fixed in the cavity. The cavity is located in the support in such a way that the location of the contact pads of the microcircuit of the device with a reduced format coincides with the standardization location of the contact pads of a microcircuit having a standard format mini-card.

Abstract: A laser marked data medium includes a plastic material substrate coated with a visible wavelength transparent film. The substrate contains a first marking pigment. The transparent film contains a second marking pigment, which is an absorber of laser wavelengths.

Abstract: A portable integrated circuit device has a supporting body and a detachable mini-card bearing an integrated circuit. The mini-card is disposed on one end of the supporting body which has an elongated shape. The invention can be used for SIM cards in new generation mobile telephones.