摘要:
A DAC having a memory mat including a plurality of first memory cells, and a plurality of output lines connected to the plurality of first memory cells. Each of the plurality of memory cells has a first memory portion including bipolar transistors and storing information in non-volatility based on whether a junction of the bipolar transistors is destroyed or not, and a second memory portion connected to the first memory portion and for outputting information to corresponding one of the plurality of output lines. The DAC has a first mode in which information is transferred from the first memory portions to the second memory portions when the information is written into the second memory portions, and a second mode in which the second memory portions are specified externally and information is written into the second memory portions. Thus, the performance of a D/A converter can be improved.
摘要:
A DAC having a memory mat including a plurality of first memory cells, and a plurality of output lines connected to the plurality of first memory cells. Each of the plurality of memory cells has a first memory portion including bipolar transistors and storing information in non-volatility based on whether a junction of the bipolar transistors is destroyed or not, and a second memory portion connected to the first memory portion and for outputting information to corresponding one of the plurality of output lines. The DAC has a first mode in which information is transferred from the first memory portions to the second memory portions when the information is written into the second memory portions, and a second mode in which the second memory portions are specified externally and information is written into the second memory portions. Thus, the performance of a D/A converter can be improved.
摘要:
A DAC having a memory mat including a plurality of first memory cells, and a plurality of output lines connected to the plurality of first memory cells. Each of the plurality of memory cells has a first memory portion including bipolar transistors and storing information in non-volatility based on whether a junction of the bipolar transistors is destroyed or not, and a second memory portion connected to the first memory portion and for outputting information to corresponding one of the plurality of output lines. The DAC has a first mode in which information is transferred from the first memory portions to the second memory portions when the information is written into the second memory portions, and a second mode in which the second memory portions are specified externally and information is written into the second memory portions.
摘要:
A DAC having a memory mat including a plurality of first memory cells, and a plurality of output lines connected to the plurality of first memory cells. Each of the plurality of memory cells has a first memory portion including bipolar transistors and storing information in non-volatility based on whether a junction of the bipolar transistors is destroyed or not, and a second memory portion connected to the first memory portion and for outputting information to corresponding one of the plurality of output lines. The DAC has a first mode in which information is transferred from the first memory portions to the second memory portions when the information is written into the second memory portions, and a second mode in which the second memory portions are specified externally and information is written into the second memory portions. Thus, the performance of a D/A converter can be improved.
摘要:
A semiconductor apparatus includes a first transistor having a first emitter electrode, a first base electrode, and a first collector electrode in a region over a first region. Base lead-out polysilicon connecting the first base electrode and a first base region passes over a second region provided out of the first region and a resistor element is added. A writing voltage is reduced in an antifuse using two bipolar transistors.
摘要:
A semiconductor apparatus includes a first transistor having a first emitter electrode, a first base electrode, and a first collector electrode in a region over a first region. Base lead-out polysilicon connecting the first base electrode and a first base region passes over a second region provided out of the first region and a resistor element is added. A writing voltage is reduced in an antifuse using two bipolar transistors.
摘要:
A manufacturing method of a semiconductor device capable of obtaining highly reliable semiconductor devices with the realization of high integration and high speed intended is provided. During processes after a desired circuit including a CMOS static type circuit is formed on a semiconductor substrate until product shipment, a first operation of feeding a predetermined input signal to the circuit and retrieving a first output signal corresponding to it and a second operation of giving an operating condition of increasing an ON resistance value of MOSFETs constituting the CMOS static type circuit and retrieving a second output signal corresponding to the condition are conducted, and a testing step of determining a failure by the first output signal varying from the second output signal.
摘要:
A method by which physical properties, including the Young's modulus and thermal conductivity of a ceramic layer of a thermal barrier coating formed on a high-temperature member, are quickly and accurately estimated. A method for estimating a physical property of a ceramic includes a step of calculating the Larson-Miller parameter from the time for which and the temperature at which the ceramic is heated; a step of acquiring the porosity of the ceramic corresponding to the calculated Larson-Miller parameter, based on the calculated Larson-Miller parameter and a diagram correlating the Larson-Miller parameter and the porosity obtained from samples having the same composition as the ceramic; and a step of acquiring the physical property of the ceramic corresponding to the acquired porosity, based on the acquired porosity and a diagram correlating the porosity and the physical property obtained from samples having the same composition as the ceramic.
摘要:
A thermal barrier coating material having a lower thermal conductivity than rare earth stabilized zirconia materials. A thermal barrier coating material comprising mainly a compound represented by composition formula (1): Ln1-xTaxO1.5+x wherein 0.13≦x≦0.24, and Ln represents one or more elements selected from the group consisting of Sc, Y and the lanthanoid elements. Also, a thermal barrier coating material comprising mainly a compound represented by composition formula (2): Ln1-xNbxO1.5+x wherein 0.13≦x≦0.24, and Ln represents one or more elements selected from the group consisting of Sc, Y and the lanthanoid elements. Also, a thermal barrier coating material comprising mainly a cubic compound having a fluorite structure represented by composition formula (3): Ln3NbO7 wherein Ln represents one or more elements selected from the group consisting of Sc, Y and the lanthanoid elements.
摘要:
A silicon resin (7) is applied to the outer wall (1b) of the transition piece (1) subjected to the thermal barrier coating by caulking the cooling holes (2a) provided in the inner wall (1a) by a resin (4). Then, the transition piece (1) is heated in an atmosphere furnace in order to burn or decompose the resin (4). A part of the silicon resin (7) applied to the outer wall (1b) of the transition piece (1) is decomposed or evaporated by the heating to be discharged to the atmosphere in the furnace, but a part of the silicon resin (7) remains and protects the outer wall (1b). Then, since the remaining silicon resin (7) protects the outer wall (1b), it is possible to reduce oxidization of the outer wall (1b) or an unevenness in color caused by the oxidization. Accordingly, it is possible to remarkably reduce the time required to improve an external appearance of the transition piece (1) after the ashing process for the transition piece (1). Moreover, the heat treatment method according to the present invention is not limited to the application to the ashing process for the transition piece (1), but can be applied to the whole product required to be subjected to the heat treatment.