Semiconductor structure
Granted: February 9, 2006
Application Number:
20060028318
A semiconductor structure, for improving rectifier efficiency in passive backscatter transponders or backscatter remote sensors for use in high-frequency electromagnetic fields, is provided. The semiconductor structure has a dielectric layer on whose upper side is arranged a first electrically conductive layer, and a second electrically conductive layer that is spaced apart from the first electrically conductive layer and is arranged essentially below the first electrically conductive…
Method for integration of three bipolar transistors in a semiconductor body, multilayer component, and semiconductor arrangement
Granted: February 2, 2006
Application Number:
20060022306
A method for integrating three bipolar transistors into a semiconductor body, multilayer component, and semiconductor arrangement is provided. A tendency toward thyristor-like behavior of the multilayer semiconductor arrangements with the three bipolar transistors is suppressed with the aid of a heterojunction. The high frequency characteristics and the blocking capability of the circuit of the three bipolar transistors is made more flexible, while the capability of an input signal to…
Optical microsystem and method for making same
Granted: December 29, 2005
Application Number:
20050287690
The invention relates to the fabrication of optical microsystems for miniature cameras or miniature matrix displays. It is proposed that N dot matrix arrays and associated circuits should be collectively fabricated, on the front of a semiconductor wafer, to produce N identical chips, with on the side of each array, external connection lands; a plate, used to collectively form N identical optical image-forming structures, each optical image-forming structure covering a respective chip and…
Circuit for current measurement and current monitoring
Granted: December 8, 2005
Application Number:
20050270198
A circuit for current measurement and current monitoring in a motor vehicle is provided, with a measuring circuit with a first subtractor circuit, connected to a measuring resistor; an offset circuit, which is connected to the first subtractor circuit in such a way that a first output voltage of the first subtractor circuit is increased by an offset voltage; a second subtractor circuit, which is connected to the offset circuit and the first subtractor circuit in such a way that a second…
Method for producing a spiral inductance on a substrate, and a device fabricated according to such a method
Granted: November 10, 2005
Application Number:
20050248431
A device and a method for producing such a device is provided, whereby the windings of a spiral inductance are embedded in a membrane such that they are freely suspended over a completely back-etched area of the substrate for a decoupling of the windings from the substrate. An additional substrate is connected to the bottom side of the back-etched area of the processed substrate such that a hollow cavity is formed for a decoupling of the windings from the substrate.
Microcontroller with synchronised analog to digital converter
Granted: November 10, 2005
Application Number:
20050248901
A microcontroller is provided, which includes a control unit (UC), at least one digital to analog converter (DAC) as a peripheral of the said control unit, and a buffer register located between the said control unit and the said converter, receiving data and a first command to transfer the said data from the said control unit. The microcontroller includes means of synchronisation of the said converter including a register inserted between the said buffer register and the said converter,…
Optical filtration device
Granted: October 13, 2005
Application Number:
20050226553
The invention relates to wavelength selective optical components for transmitting the light in a narrow spectral band, which is centered around a wavelength, and for reflecting the wavelengths lying outside this band. The component includes an input guide (2) conducting light radiation (3) to a tunable filter (1), an input guide (2) conducting the radiation (3) to the filter (1) in order to perform a first pass through it. The component includes means (6) for returning a first part (4)…
Circuit for increasing the unity gain crossover frequency of an amplifier element
Granted: October 6, 2005
Application Number:
20050218995
A circuit having an input amplifier and a second amplifier that provides the circuit with a unity gain crossover frequency that is higher than a unity gain crossover frequency of the input amplifier is provided. The circuit has a control input coupled to a control input of the input amplifier and also has a first current connection and a second current connection. The circuit further includes an additional amplifier that is connected in series with the second amplifier and is controlled…
Electric reference voltage generating device of improved accuracy and corresponding electronic integrated circuit
Granted: September 22, 2005
Application Number:
20050206443
The present invention relates to a device for generation of a reference electrical voltage. The device includes a first current generator outputting a current proportional to temperature. The first current generator comprises at least one operational amplifier and two branches in parallel, a first branch comprising a first current source and a first bipolar transistor, and a second branch comprising a second current source, a first resistance and a second bipolar transistor. A second…
Radio-controlled clock and method for gaining time information
Granted: September 15, 2005
Application Number:
20050202796
Time signals for controlling a radio clock are transmitted by a transmitter and received by a receiver as amplitude modulated time signals, formed of a multitude of time frames. Each time frame has a constant duration. These time signals are first automatically amplified. A so-called telegram of at least one received time signal is stored in a memory. At least one change of an amplitude of a time signal is determined in advance or predetermined and such amplitude change has a duration…
Method for manufacturing integrated circuits and corresponding device
Granted: September 8, 2005
Application Number:
20050193949
A method of manufacturing integrated circuits is provided. The method includes: conditioning of a depositing chamber; introducing of at least a substrate in said depositing chamber; depositing of a compound that does not contain oxygen on said substrate(s); removing of said substrate(s) from said depositing chamber; and cleaning of said chamber with a cleaning plasma. According to an embodiment of the invention, the conditioning step implements a depositing of a conditioning compound…
Method and circuit arrangement for holding a control state during inadequate power supply in an RF transponder or remote sensor
Granted: August 18, 2005
Application Number:
20050179520
An RF transponder includes an input circuit, a read/memory circuit, and a circuit arrangement for holding a control state. The circuit arrangement includes a first storage device (e.g. a D-flip-flop) for storing the control state dependent on received control signals, and a second storage device (e.g. a capacitor and a transistor) for holding the control state during a period of inadequate energy supply to the circuit arrangement, e.g. while the transponder is in a field gap of the…
Process for automatically detecting the throughput of a network, particularly of the can bus type and for configuring with the detected throughput by transition analysis, and corresponding device
Granted: August 18, 2005
Application Number:
20050180442
A process for automatically detecting throughput of a network by a device. The network transmits a signal on which messages are carried that include bits of length LBIT and of a dominant or recessive type. The process includes the following successive steps: (a) the device goes into a listen mode; (b) the device obtains a triplet of successive transitions in the signal transmitted on the network, the triplet delimiting a first and second signal level, one dominant and the other…
Method of producing a digital fingerprint sensor and the corresponding sensor
Granted: August 18, 2005
Application Number:
20050180609
An embodiment of the present invention related to fingerprint sensors is described. The sensor comprises an integrated-circuit chip having a sensitive surface, a substrate provided with electrical connections and wire-bonding wires connecting the chip to the electrical connections. The sensor further includes a molded protective resin at least partly covering the substrate and the chip and completely encapsulating the wire-bonding wires. The resin forms, on at least one side of the chip…
Method and circuit arrangement for synchronizing a function unit with a predetermined clock frequency
Granted: August 11, 2005
Application Number:
20050175133
A receiver is synchronized with a first clock frequency or signal of a transmitter for the proper reception of transmitted and received signals, such as data carrying signals (DS). The first clock frequency is for example a carrier frequency. A local oscillator generates a second clock frequency or signal in the receiver. Cycles or impulses of the second clock signal are counted between predetermined flanks of the received signal (DS) to provide a count (N). Based on the second clock…
Process and electronic decoding circuit for a diphase asynchronous frame whose length is not known in advance, corresponding application, computer programme and storage means
Granted: August 11, 2005
Application Number:
20050175134
A decoding process, by an electronic circuit of a diphase asynchronous frame carried by an encoded data signal and comprising L information bits followed by at least one stop bit. The process comprises a step for automatically detecting the length L in information bits of the frame so as to decode the entire frame, the length L of the frame being variable from one frame to another and such that Lmin?L?Lmax=(Lmin+k), where k is a predetermined whole number greater than or equal to one.
Radio-controlled clock, receiver circuit and method for acquiring time information with economized receiver and microcontroller
Granted: August 4, 2005
Application Number:
20050169230
A transmitted time signal carries time information encoded bit-wise by signal amplitude variations in a succession of time frames. A method involves receiving and evaluating the time signal in a receiver to acquire the time information, and then outputting from the receiver an individual data bit respectively allocated to a respective time frame during or at the end of or immediately after the respective time frame. It is not necessary to store all the data bits of a complete minute…
Method of producing active semiconductor layers of different thicknesses in an SOI wafer
Granted: August 4, 2005
Application Number:
20050170571
An SOI wafer including an active semiconductor material layer on an insulating layer is processed to form thereon first and second active semiconductor regions that respectively have different thicknesses and that are vertically and laterally insulated. In the process, a trench is etched into the SOI wafer, seed openings are formed in the bottom of the trench to reach the underlying active material layer, the trench is filled with epitaxially grown semiconductor material progressing from…
Circuit arrangement and method for increasing the functional range of a transponder
Granted: June 9, 2005
Application Number:
20050122651
A transponder receives its operating energy from an external source such as a radio signal or a battery. Such transponders are used for example in a vehicle or in a remote sensor. The response range of the transponder is increased by converting the received energy into an operating voltage which in turn is used to generate a function voltage required for performing a current function sequence. The generated function voltage is checked to determine at least one characteristic of the…
Microelectronic circuit for activation of deactivation of at least one input/output, corresponding smart card reader and deactivation method
Granted: June 9, 2005
Application Number:
20050122807
The invention concerns a microelectronic circuit for activation or respectively deactivating at least one second input/output (2, 3), or second “buffer”, which receives a deactivation command (21, 31) corresponding to a combination of a general activation, or respectively deactivation, command (StopPadB) and of an information item representing the activated, or respectively deactivated, state (12, 22) of at least a first buffer, so that the said second buffer(s) is/are only…
