Abstract: The invention relates to a method for manufacturing a USB electronic key, whereby a chip is cut out of a tape, provided with a plurality of chips, each chip defining contact pads in USB format and supporting an electronic component, connected to the pads. The thickness adjustment step is directly carried out on the chip to give a thickness conforming to the USB standard, at least in the area of the contact pads.

Abstract: A method for producing a portable electronic object having contact pads arranged on a plane with a thickness which differs from the thickness of a standard smartcard. The object is electrically connected to data transfer station connectors, by delivering a data transfer station having an electric probe connector and submitting the object to the data transfer station in such a way that the contact pads thereof are accessible to the electric probes in a direction perpendicular to the plane. Objects obtainable include UBS keys or PCMCIA cards or readers.

Abstract: A method for producing a portable electronic object having contact pads arranged on a plane with a thickness which differs from the thickness of a standard smartcard. The object is electrically connected to data transfer station connectors, by delivering a data transfer station having an electric probe connector and submitting the object to the data transfer station in such a way that the contact pads thereof are accessible to the electric probes in a direction perpendicular to the plane. Objects obtainable include UBS keys or PCMCIA cards or readers.

Abstract: A method for producing a portable electronic object having contact pads arranged on a plane with a thickness which differs from the thickness of a standard smartcard. The object is electrically connected to data transfer station connectors, by delivering a data transfer station having an electric probe connector and submitting the object to the data transfer station in such a way that the contact pads thereof are accessible to the electric probes in a direction perpendicular to the plane. Objects obtainable include UBS keys or PCMCIA cards or readers.

Abstract: A method for producing a portable electronic object having contact pads arranged on a plane with a thickness which differs from the thickness of a standard smartcard. The object is electrically connected to data transfer station connectors, by delivering a data transfer station having an electric probe connector and submitting the object to the data transfer station in such a way that the contact pads thereof are accessible to the electric probes in a direction perpendicular to the plane. Objects obtainable include UBS keys or PCMCIA cards or readers.

Abstract: The invention relates to a method for manufacturing a USB electronic key, whereby a chip is cut out of a tape, provided with a plurality of chips, each chip defining contact pads in USB format and supporting an electronic component, connected to the pads. A thickness adjustment step is directly carried out on the chip to give a thickness conforming to the USB standard, at least in the area of the contact pads.

Abstract: The method for forming a multi-stage recess in a layer structure comprises forming a photo-resist film atop a layer structure; a first step (49, 70) of etching the layer structure through an opening of the photo-resist film used as a mask, for forming a first stage of the recess; a step of widening the opening of the photo-resist film after the first etching step, for producing a widened opening of the photo-resist film, and a second step (58, 72) of etching the layer structure through the widened opening of the photo-resist film for forming a second stage of the multi-stage recess.

Abstract: A shielded magnetic-field antenna has at least one turn of a metallic element and metallic tubular shielding positioned around the element. The turn (3a) is produced in a printed circuit on a card made of insulating material (4a). The shielding has two open rings (5a, 6a) each produced in a printed circuit and disposed respectively on a bottom card (9a) and a top card (10a) made of insulating material. The cards are assembled by gripping the turn between the top and bottom cards. A plurality of metallic vias (7a, 8a) connect side edges of the two rings. The vias extend through the cards, and are positioned around the turn.

Abstract: An .alpha.-hydrazino acid derivative of general formula (I) is described, wherein R.sub.1, R.sub.2, R.sub.3 are hydrogen or a carbon radical, such that when R.sub.2 and R.sub.3 are different, C* is an asymmetric carbon of L, D or DL configuration, and R.sub.4 and R.sub.5 are a protecting group, characterized in that R.sub.4 is a benzyl ArCH.sub.2 radical of formula (a), wherein Ar is a phenyl radical or phenyl substituted by one or more X groups; X being hydrogen, halogen, a nitro or alkyl radical; and in that R.sub.5 is a Y--O--CO group, where Y is a carbon radical different from R.sub.4.

Abstract: A high-resolution photosensitive composition which can be plasma-developed, including an acrylic a polymer and a photosensitive compound, of the aromatic azide group, in which the polymer contains, in a side chain, at least one aromatic nucleus where at least one chlorine atom (Cl) has replaced at least one hydrogen atom (H), for example ##STR1##

Abstract: A high-resolution photosensitive composition which can be plasma-developed, including an acrylic polymer and a photosensitive compound, of the aromatic azide group, in which the polymer contains, in a side chain, at least one aromatic nucleus where at least one chlorine atom (Cl) has replaced at least one hydrogen atom (H) for example ##STR1##