摘要:
A method for fabricating an electronic device or circuit, respectively, comprises providing a flexible substrate (1), defining onto the flexible substrate (1) electric components (2, 3, 3′, 3″, 3′″, 7, 11, 12) and interconnects (8), introducing out breaks (4, 4′, 4″, 4a-4s) in the flexible substrate (1) between the electric components and/or interconnects, and forming the flexible substrate (1) into a deformed configuration by deforming, particularly folding, parts of the flexible substrate as determined by the breaks (4, 4′, 4″, 4a-4s).
摘要:
The present invention relates to electronic memories, more particularly to an improved method and apparatus to read the content of compact 2-transistor flash memory cells.A method of reading a 2-transistor flash memory cell 1 is provided. The memory cell 1 comprises a storage transistor 2 with a storage gate 6 and a selecting transistor 3 with a select gate 7. The method comprises leaving the storage gate 6 floating while the select gate 7 is switched from a first voltage to a second voltage, whereby the first voltage is lower than the second voltage.A device according to the present invention comprises a switching circuit for leaving the storage gate 6 floating while the select gate 7 is switched from the first voltage to the second voltage, the first voltage being lower than the second voltage.
摘要:
The invention provides a method of fabricating an extremely short-length dual-gate FET, using conventional semi-conductor processing techniques, with extremely small and reproducible fins with a pitch and a width that are both smaller than can be obtained with photolithographic techniques. On a protrusion (2) on a substrate (1), a first layer (3) and a second layer (4) are formed, after which the top surface of the protrusion (2) is exposed. A portion of the first layer (3) is selectively removed relative to the protrusion (2) and the second layer (4), thereby creating a fin (6) and a trench (5). Also a method is presented to form a plurality of fins (6) and trenches (5). The dual-gate FET is created by forming a gate electrode (7) in the trench(es) (5) and a source and drain region. Further a method is presented to fabricate an extremely short-length asymmetric dual-gate FET with two gate electrodes that can be biased separately.
摘要:
The electric device (100) according to the invention has a resistor comprising a layer (7, 107) of a phase change material which is changeable between a first phase with a first electrical resistivity and a second phase with a second electrical resistivity different from the first electrical resistivity. The phase change material is a fast growth material. The electric device (100) further comprises a switching signal generator (400) for switching the resistor between at least three different electrical resistance values by changing a corresponding portion of the layer (7, 107) of the phase change material from the first phase to the second phase.
摘要:
Two substantially identical currents (I1,a, I1,b) are subtracted from each other, while being generated by elements (10, 11) in such a way that noise in the current value of said two currents (I1,a, I1,b) is determined by shot noise. The differential current, determined only by shot noise, is supplied to a capacitor (13). A second current (I2) is used to charge a second capacitor (22, 29). It is periodically determined whether the value of a voltage across the first capacitor (13) is within or outside a range bounded by the (negative and positive values of the) voltage of the second capacitor (22, 29) which has been charged over the same period of time. The currents (I1,b, Ib) are set in dependence on the result of the comparison. The signal to set the currents (I1,b, Ib) also serves as control signal for an element (43) connected as a constant current source. The setting signal and thus the constant current (I0) delivered by the element (43) connected as a current source is to a high degree independent of the temperature sensitivity of different components of the circuit and is determined essentially solely by the ratio of values of similar components (10, 11, 20, 27, 43) of the circuit. By choosing components whose ratio appears in a value of the constant current (I0) delivered by the circuit and which have the same temperature dependence, it is achieved that the temperature dependence disappears completely or substantially completely from the constant current (I0) delivered by the circuit.
摘要:
The electric device according to the invention has a resistor comprising a layer of a phase change material which is changeable between a first phase with a first electrical resistivity and a second phase with a second electrical resistivity different from the first electrical resistivity. The phase change material is a fast growth material. The electric device further comprises a switching signal generator for switching the resistor between at least three different electrical resistance values by changing a corresponding portion of the layer of the phase change material from the first phase to the second phase.
摘要:
An electrochemical sensor device (100) for analysing a sample, the device (100) comprising an electronic chip (101) comprising a sensor portion (102) being sensitive for particles of the sample, a carrier element (103, 104) bonded to the electronic chip (101) to define a fluidic path together with the electronic chip (101), and a counter electrode (105) provided in a surface portion of the carrier element (103, 104).
摘要:
A data processing device has a memory with writeable and erasable locations, such as a flash memory. The memory locations are store WOM codewords (Write Once Memory codewords in which successive generations of data can be encoded by setting bits from zero to one only). A data encoder encodes a received data value in a new codeword from the WOM code, as a function of the received data value and a previous codeword stored in the currently selected location. When the WOM codeword is exhausted the data encoder selects a new currently selected location from a logical series of locations and stores the new codeword in the new currently selected location. When all locations are exhausted a reset circuit resets a content of the locations in the logical series. On reading the currently selected location is read and decoded.
摘要:
A semiconductor device includes a semiconductor body (1) which is provided at a surface (2) with a non-volatile memory cell comprising a source (3) and a drain (4), and an access gate (14) which is electrically insulated from a gate structure (8) comprising a control gate (9), the gate structure (8) being electrically insulated from the semiconductor body (1) by a gate dielectric (11, 25). The gate dielectric (11, 25) is provided with a charge-storage region wherein data in the form of electric charge can be stored. The access gate (14) has a substantially flat surface portion (17) extending substantially parallel to the surface (2) of the semiconductor body (1) and has the shape of a block which is disposed against the gate structure (8) without overlapping the gate structure.
摘要:
One-time UV-programmable read-only memory (1) comprising a number of memory cells in the form of MOS transistors (T) which are arranged in a matrix of rows and columns, each transistor comprising a source and a drain zone (12) and a channel zone (13) formed in a surface zone (11) of a semiconductor substrate (10). Said semiconductor zones adjoin a surface (14) of the semiconductor substrate on which surface a layer structure (17) is formed comprising floating gates (16) and control gates (15). The layer structure is provided with windows (18) through which UV radiation can reach the edges of the floating gates. The memory is further provided with means for generating an electric voltage between the substrate (10) and the control gates (16) during programming the memory by means of UV radiation. Thus, the memory can be programmed without being externally contacted during programming.