A case for microcircuit card reader, including a case body (1), an electronic circuit incorporated into the case body, a device for guiding the card and holding it in place, and a connector provided with elastic contact segments ensuring an electrical connection between the conductor elements of the card and the electronic circuit. It includes at least one elastic element (13, 55) for supporting the card by means of an elastic force.

A case for microcircuit card reader, comprising a case body, an electronic circuit incorporated into the case body, a device for guiding the card and holding it in place, and a connector incorporating elastic contact segments providing an electrical connection between conductors belonging to the card and the aforementioned electronic circuit. The connector (22, 23) is fastened to the body of the case (1). The connector (22, 23) may be integrated into the case body (2), this attachment being prod...

A contiguous gasket provides an electromagnetic and environmental seal between the base and lid of a microcircuit housing. The base has a flat surface that allows easy access of tools for assembling electronic components. Channels are cut into a corresponding flat portion of the lid to accommodate the electronic components mounted on the base. High-frequency feedthroughs are brought through sidewall connector features of the base that rise above the assembly surface. Feedthroughs are optionally ...

A method for forming a conductive vias in a non-conductive substrate having a through-hole formed therein intermediate two side thereof. The method utilizes the steps of: applying gold paste to the through-hole so as to provide electrical conduction therethrough; and under firing the gold paste when a thin conductive film is present upon the substrate and fully firing the gold paste when no thin conductive film is present on the substrate. Under firing the gold paste when a thin-film is present ...

A turbine blade is provided comprising an internal cavity into which cooling air is flowable, an external wall and a first, second and third cooling circuits embedded with the wall. The cooling circuits include inlets that connect each respective cooling circuit with a cavity to provide a cooling air flow path into the respective cooling circuit. The cooling circuits also include an exit aperture that provides a cooling air flow path out of the respective cooling circuits. The cooling circuits a...

Apparatus and a related method for its operation, for removing a cover from a microcircuit package without significant damage to the package or contamination of its contents. The apparatus includes a work table on which the package to be opened is placed, a clamping assembly for removably securing the package to the work table, and a cutter blade positioned in an operative relationship with the clamped package. Also included are adjustment controls to allow for adjustment for the width, length a...

A method of fabricating a microcircuit card provides better control of the spreading of a hardenable coating material during fabrication of the microcircuit card. The surface of a support is treated to define at least two areas with different surface states and both extending beyond a predetermined location of the microcircuit. The deposit of the material is delimited by the configuration of these areas. The treatment is preferably applied by means of a laser beam.

Examination of microstructures of LSI and VLSI devices is facilitated by employing a method in which the device is photographed through a darkfield illumination optical microscope and the resulting negative subjected to inverse processing to form a positive on a photographic film. The film is then developed to form photographic prints or transparencies which clearly illustrate the structure of the device. The entire structure of a device may be examined by alternately photographing the device an...

A hermetically sealed package for microcircuits employs a base plate on which one or more microcircuits may be mounted by, for example, soldering thereto or by means of studs, the studs being positioned in the base plate so as to accommodate the microcircuits which are held down on the base plate, for example, by spring fasteners mounted on the studs. The microcircuits may be mounted on a heat conductive carrier base. Electrical feedthroughs are hermetically sealed in the base plate. In certain ...

An AC signal source having constant frequency-amplitude product is also easily realizable in hybrid microcircuit form. A square wave oscillator output is rectified and clamped to a feedback control voltage. The resulting controlled amplitude square wave is low-pass filtered to produce a sinusoidal output signal which is typically amplified and applied to a variable-impedance load. The sinusoidal signal is also applied to a similar but simulated load of fixed impedance value and the current flowi...