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Proceedings of the Tenth International Conference on Microelectronics (Cat. No.98EX186)

16-16 Dec. 1998

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  • Proceedings of the Tenth International Conference on Microelectronics (Cat. No.98EX186)

    Publication Year: 1998
    Request permission for commercial reuse | PDF file iconPDF (410 KB)
    Freely Available from IEEE
  • A low-voltage low-power rail-to-rail constant-Gm adaptive biased CMOS operational amplifier

    Publication Year: 1998, Page(s):13 - 16
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (267 KB)

    In this paper, we present the design of a novel low voltage (1.8 V) low-power (230 /spl mu/W) CMOS operational amplifier. It utilises the adaptive biased technique in order to minimize the quiescent power consumption of its input stage without degradation of the dynamic performance. A class-AB output stage allows current control. The op-amp has been designed with input and output full swing (rail-... View full abstract»

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  • Design of an adaptive flow control algorithm for ATM networks

    Publication Year: 1998, Page(s):83 - 86
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    This paper presents several techniques of traffic management such as credit-based and rate-based approaches. An example of these techniques is the simple Leaky Bucket, which is a congestion preventive method, that can easily be implemented. The Adaptive Leaky Bucket algorithm introduces a feedback mechanism, compared to the common Leaky Bucket, in order to be more flexible and efficient. We focus ... View full abstract»

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  • System testability evaluation with STA

    Publication Year: 1998, Page(s):79 - 81, 82b
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    This paper presents a Computer Aided Testability tool named STA (System Testability Assistant), aimed at proposing a testability strategy for systems as early as possible in the design process. Given a system description, STA first compiles it in order to create system, boards, and circuits objects, and then proceeds bottom-up, from the circuit to the system, in order to evaluate the actual testab... View full abstract»

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  • High-level testability evaluation of TASS synthesized systems

    Publication Year: 1998, Page(s):75 - 78
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    In this paper, a new synthesis system, called TASS (TAbu search Synthesis System), is presented. It enables a Register-Transfer Level (RTL) implementation from a functional VHDL description. Furthermore, an emphasis on how testability evaluation is incorporated in the synthesis process in order to generate not only optimized designs, with regard to area and delay, but also fully and easily testabl... View full abstract»

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  • A novel Q tuning method, using variable output conductance of transconductors

    Publication Year: 1998, Page(s):191 - 194
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    In this paper, the effects of Transconductors' phase shifts on the Q factor of a second order system are discussed and it is shown that this negative phase shift appears as negative conductance in an integrator and amount of this conductance can be achieved in a general filter. A new Q tuning method based on compensation of this phase shift by variable output conductance of Transconductors is appl... View full abstract»

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  • A class AB CMOS fully balanced signal generator

    Publication Year: 1998, Page(s):1 - 4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    In this paper a novel single input to fully balanced output circuit (SFC) is proposed. The circuit operates in a class AB mode to achieve low standby power dissipation and high current drive capability. The circuit produces two buffered balanced output signals without requiring common mode feedback circuit. Measurement results from a 1.2 μm N-well CMOS chip indicate a bandwidth of 5.5 MHz while... View full abstract»

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  • A parallel technique for ATPG using genetic algorithms

    Publication Year: 1998, Page(s):71 - 73, 74a-c
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    This paper presents a new technique for test pattern generation based on a genetic algorithm and parallel processing techniques. This new method offers compact test sets, compared to other methods, that achieve maximum coverage View full abstract»

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  • Low power CMOS digital design

    Publication Year: 1998, Page(s):IP6 - I13
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    This paper will first address the following issues: why a voltage transition causes power dissipation, what causes a transition, what are useful and redundant transitions, how information redundancy may reduce the number of transitions, how to statistically measure the average number of transitions (or activity). In a second part, the paper will show the incidence of scaling down the transistors o... View full abstract»

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  • Efficient method for large signal distortion minimization of field effect transistor circuits

    Publication Year: 1998, Page(s):219 - 222
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    Prediction of distortion effects is an important aspect in high frequency systems design. In this paper, we present a method which minimizes the intermodulation products of transistors. Based on the characteristic surface method the technique consists to determine the optimum harmonic loads for the active elements and then, using Volterra series, to minimize the intermodulation powers. The validit... View full abstract»

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  • Circuit design techniques: ad-hoc methods or systematic generation methods

    Publication Year: 1998, Page(s):187 - 190
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    In this study a systematic method for the design of analog circuits with a number of active and passive components is proposed. The method makes use of the recent advances in symbolic computation and increasing speed of computers. The advantages and drawbacks of the method is discussed. Sample circuits generated with the proposed method are given to illustrate the application to a practical case View full abstract»

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  • Integrated systems design driving the next decade of design

    Publication Year: 1998, Page(s):IP22 - IP23
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (156 KB)

    The design methodologies being used by electronics companies are evolving at a rapid pace to meet the demands of more complex, higher quality and faster electronics equipment. Improving design methodology is one of the most effective ways to reduce new product development costs and shrink time to market. An effective design methodology will improve the reliability of the cost and schedule forecast... View full abstract»

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  • Programmable current source dedicated to implantable microstimulators

    Publication Year: 1998, Page(s):67 - 70
    Cited by:  Papers (4)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    In this paper, a survey of programmable current-source architectures based on miniaturized digital-to-analog converters (DAC) is elaborated to propose a new design dedicated to a visual microstimulator. The needed current-source constitutes the electronic interface to tissues. A few samples of this current-source will be integrated in an implantable device which is powered and controlled using an ... View full abstract»

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  • Electrical characterization of oxide and Si/SiO2 interface of irradiated NMOS transistors at low radiation doses

    Publication Year: 1998, Page(s):115 - 118
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    N-channel MOSFET's of different dimensions were first irradiated with 60Co Gamma rays source at several total doses (low doses) and then their gate oxides, SiO2 and interfaces, Si/SiO2 were characterized by using the standard charge pumping (CP) and the extended standard CP to low frequencies techniques. Both techniques reveal two radiation induced oxide charge tra... View full abstract»

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  • Submicronics technology: the services available from CMP

    Publication Year: 1998, Page(s):IP3 - IP5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    This paper is about the CMP service (Circuits Multi-Projects). CMP aims at providing universities, research laboratories and industries with the possibility to have their integrated circuits projects fabricated. The service has started in 1981. Presently customers are serviced for a CMOS double layer metal technology (DLM) 0.7 μ, a CMOS double layer polysilicon/double layer metal (DLP/DLM) 1.2 ... View full abstract»

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  • Dynamic configuration using pyramidal architecture FPGA and a built-in RISC processer

    Publication Year: 1998, Page(s):17 - 20
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    This paper presents a new pyramidal architecture FPGA (PARC) including a RISC processor dedicated for fast dynamic configurations systems. The PARC FPGA consists of a large number of fine-grained array of optimized heterogenous logic blocks and a new pyramidal structure with three hierarchical levels. The proposed FPGA is a reprogrammable SRAM based device. The built-in processor is designed as a ... View full abstract»

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  • Electrical contacts on MOVPE-Grown ZnSe based laser diodes

    Publication Year: 1998, Page(s):53 - 58
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    The electrical characterization of metal contacts to Cl and N-doped ZnSe material systems is reported. Metalorganic vapor phase epitaxy (MOVPE) was used to grow the doped ZnSe samples at 330°C. With intentional chlorine doping using 1-chlorobutane, free electron concentrations of up to 8×1017 cm-3 have been achieved. Photoluminescence (PL) spectra in conjunction wit... View full abstract»

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  • A switched capacitors track&hold circuit for subsampling applications

    Publication Year: 1998, Page(s):215 - 218
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    The growing need for dense wireless communication circuits in the frequency range of 900 MHz, has forced IC designers to find alternative receivers to the superheterodyne architecture. Among these alternatives, the direct-conversion by subsampling system should be promising because it offers a high level of integration. However, due to sampling noise and aperture jitter this architecture is certai... View full abstract»

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  • High performance balanced current controlled amplifiers

    Publication Year: 1998, Page(s):183 - 186
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    High performance balanced current controlled voltage-mode amplifiers are presented. They are constituted of four class AB controlled conveyors and do not require any external passive component. They are easily tunable from the bias currents which give to them a good versatility. These fully differential amplifiers provide wide bandwidth, low harmonic distortion and very low output offset voltage View full abstract»

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  • Noise-tolerance analysis for high speed CMOS circuits

    Publication Year: 1998, Page(s):37 - 40
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    The noise tolerance of new submicron logic families is becoming more and more important for the reliability of high speed architectures. A method for the evaluation of noise robustness must be defined to compare different topologies and help designers in the library cells optimization, The paper describes a methodology for the analysis of self induced noise tolerance based on the statistical simul... View full abstract»

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  • Time-frequency speech processing strategy based on an adjustable algorithms dedicated to the cochlear prostheses

    Publication Year: 1998, Page(s):245 - 248
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    Cochlear implants are electronic devices designed to provide useful hearing and improved communication ability to individuals who are profoundly hearing impaired and unable to achieve speech understanding with hearing aids. For individuals with a profound hearing loss, even the most powerful hearing aids may provide little to not benefit. A profoundly deaf ear is typically one which the majority o... View full abstract»

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  • On the power implications of floating point addition in IIR filters

    Publication Year: 1998, Page(s):200 - 203
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    In floating point DSP applications, filtering of data samples is one of the most demanding operations. While the specification driven filter design delivers transfer functions satisfying target applications, certain implementations of these transfer functions can result in filters exhibiting various undesirable artifacts. This work addresses the characterization of the relative power implications ... View full abstract»

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  • The microelectronics initiatives in Egypt

    Publication Year: 1998, Page(s):IP18 - IP21
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (168 KB)

    This paper presents a proposal to establish a VLSI components industry in Egypt. The first stage has been started in the Electron Factory owned by the Arab Industrial Authority (AIA). In the mean time a study to start the second stage is underway. The Microelectronics Research Center with the Faculty of Engineering Ain Shams University and the Electronics Research Institute with the Egyptian Acade... View full abstract»

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  • High performance integrated CMOS frequency-to-voltage converter

    Publication Year: 1998, Page(s):63 - 66
    Cited by:  Papers (26)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    In this paper we present a new high performance frequency-to-voltage converter (FVC) dedicated for integrated CMOS mixed-signal (analog/digital) applications. The circuit is very fast and requires a very small silicon area for integration. The output voltage generated by this FVC does not present any AC ripples and is proportional to the period of a square wave form input signal. The time response... View full abstract»

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  • A static method for system performance estimation

    Publication Year: 1998, Page(s):111 - 114
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    Performance estimation techniques and tools help designers to quickly determine appropriate computer architectures and programmers to optimize implementations for specific applications. In this paper, we present a method for system performance estimation. Based on this method we developed a tool which accepts a generic architecture and applications written in the C language. The tool is integrated... View full abstract»

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