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Article
Publication date: 1 February 1988

L. Golonka, J. Kozlowski and K. Nitsch

The rapid assessment of thick film resistor reliability is presented. This relies on the application of constant power pulses. The long‐term stability of the resistors is…

Abstract

The rapid assessment of thick film resistor reliability is presented. This relies on the application of constant power pulses. The long‐term stability of the resistors is predicted on the basis of the value of the minimal destroyed power applied during the pulse. The results are compared with the long‐term behaviour of the tested samples.

Details

Microelectronics International, vol. 5 no. 2
Type: Research Article
ISSN: 1356-5362

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Article
Publication date: 1 January 1987

J. Kozłowski, A. Dziedzic, K. Nitsch and R.F. Szeloch

This paper presents the thermal behaviour of the thick‐film resistor. Continuous and pulse power heating were supplied. The maximum non‐destroyed power was established and…

Abstract

This paper presents the thermal behaviour of the thick‐film resistor. Continuous and pulse power heating were supplied. The maximum non‐destroyed power was established and the maximum temperatures reached by the resistive layer were estimated for each method of heating.

Details

Microelectronics International, vol. 4 no. 1
Type: Research Article
ISSN: 1356-5362

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Article
Publication date: 8 May 2009

Edward Miś, Andrzej Dziedzic and Karol Nitsch

A capacitor is a basic electronic passive component. Thick‐film technology allows manufacturing of capacitors covering the range of small and medium capacitances and they…

Abstract

Purpose

A capacitor is a basic electronic passive component. Thick‐film technology allows manufacturing of capacitors covering the range of small and medium capacitances and they have been investigated in depth already. Low temperature co‐fired ceramics (LTCC) technology makes it possible to fabricate buried capacitors, which leads to increased packaging density, but such components’ properties are not well known. The purpose of this paper is to present the results of investigations on thick‐film and LTCC capacitors made in various technological variants.

Design/methodology/approach

Thick‐film and LTCC capacitors were made in various technological variants. Different capacitor inks, metallurgy of electrodes and component constructions were investigated. Basic electrical properties and stability were determined. An electrical equivalent circuit of such components was developed based on frequency and temperature characteristics.

Findings

Simple electrical equivalent circuits of self‐made thick‐film and LTCC micro‐capacitors were developed based on measurements in frequency and temperature domain. Good fitting accuracy was obtained. The bulk material section of model is predominant in the low‐frequency range. Interface region and serial resistance influence are revealed at higher frequency, affecting mainly dissipation factor value. Also, temperature and thermal ageing have affected strongly on that part of the model.

Originality/value

The paper usefully examines the electrical properties and electrical equivalent models of thick‐film and LTCC micro‐capacitors.

Details

Microelectronics International, vol. 26 no. 2
Type: Research Article
ISSN: 1356-5362

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Article
Publication date: 1 February 1992

L. Golonka, J. Kozlowski, B.W. Licznerski, K. Nitsch and A. Seweryn

This paper presents experimental data associated with the properties of thick film thermistors based on a spinel‐type semiconducting oxide/RuO2/glass system. The following…

Abstract

This paper presents experimental data associated with the properties of thick film thermistors based on a spinel‐type semiconducting oxide/RuO2/glass system. The following parameters—sheet resistivity, thermistor (B) and thermal time (?) constants—have been measured, all as functions of different composition and construction variants. The thermistor properties are independent of configuration and are mainly determined by the semiconducting oxide particle chains. The correlation between B and ? for the compositions considered has been observed.

Details

Microelectronics International, vol. 9 no. 2
Type: Research Article
ISSN: 1356-5362

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Article
Publication date: 1 November 2005

K.C. Roy

This paper aims to present a review of the main features of India's economic growth and human development during nearly 50 years of India's planned development.

Abstract

Purpose

This paper aims to present a review of the main features of India's economic growth and human development during nearly 50 years of India's planned development.

Design/methodology/approach

The paper examines all major aspects of India's growth such as growth in net total national product and per capita product, changes in the production and occupational structure resulting from growth, changes in government revenue, infrastructure and social services, in income distribution and in poverty.

Findings

Although the growth was uneven and low up to 1980, the country recorded a reasonable and steady improvement in most aspects of growth. Nevertheless the effects of growth have not produced better results in poverty alleviation.

Originality/value

Reviews the main features of India's economic growth and human development.

Details

International Journal of Social Economics, vol. 32 no. 11
Type: Research Article
ISSN: 0306-8293

Keywords

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Article
Publication date: 2 August 2011

Franciszek Balik

The purpose of this paper is to present a new method of optimization of electronic integrated circuits (IC) with imbedded passive modules (PM). The reported method…

Abstract

Purpose

The purpose of this paper is to present a new method of optimization of electronic integrated circuits (IC) with imbedded passive modules (PM). The reported method constitutes an attempt to streamline the optimization process in the AC electrical model stage of the RF Microsystems design.

Design/methodology/approach

In this method, the PM are described in symbolic form while the IC blocks remain described numerically. Whole PM can be represented as some sequence of expressions containing crucial model parameters, nominal and parasitic, which are first precompiled and next, merged automatically with the main program.

Findings

The input data can be updated online according to the user's desiderata. Further, the system offers the possibility to optimize PM in diverse circumstances as well as using different technologies, and including parasitic effects.

Originality/value

Usage of the semi‐symbolic method for IC with embedded PM optimization based on large‐change sensitivity AC analysis method, which appears to be a very efficient and flexible approach to solving such problems.

Details

Microelectronics International, vol. 28 no. 3
Type: Research Article
ISSN: 1356-5362

Keywords

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Book part
Publication date: 30 October 2001

Abstract

Details

Early Education and Care, and Reconceptualizing Play
Type: Book
ISBN: 978-1-84950-117-0

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Article
Publication date: 1 July 2004

Maria Dereka

This study looks at the influence of normalisation on the practice of teachers in adult training centres (ATCs) in Greece and more specifically at the curricula used in…

Abstract

This study looks at the influence of normalisation on the practice of teachers in adult training centres (ATCs) in Greece and more specifically at the curricula used in ATCs in Greece for young adults with learning disabilities. It examines whether the centre curriculum emphasises the teaching of social and life skills through activities outside the learning environment, and the kinds of difficulty that teachers face during the teaching of these skills. Data were gathered through interview and questionnaire, and are presented by content analysis, for the interviews, and analysed by descriptive quantitative methods wherever possible. A total of 44 Greek teachers from ATCs were interviewed. Results suggest that teachers avoid teaching life and social skills that relate to activities outside the ATC. Students visit mainly local shops and far fewer theatres, cinemas and public buildings. Additionally, in most of the visits students remain passive attendants without learning much in the way of life skills. Teachers' obstacles to teaching life and social skills outside ATCs are mainly lack of assistants, lack of time and lack of parents' co‐operation. Generally, it is difficult for teachers to reduce teaching time in the classroom and give the students the opportunity to apply their knowledge outside the classroom.

Details

Tizard Learning Disability Review, vol. 9 no. 3
Type: Research Article
ISSN: 1359-5474

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Article
Publication date: 1 January 1987

Eighty‐five participants attended the 4th ISHM Display meeting at the Jaarbeurs Congress Centre in Utrecht on 16 October, 1986. The programme of the day started with the…

Abstract

Eighty‐five participants attended the 4th ISHM Display meeting at the Jaarbeurs Congress Centre in Utrecht on 16 October, 1986. The programme of the day started with the annual general membership meeting of the Benelux Chapter. The chairman, Mr T. Kwikkers, gave a short review of the state of affairs of ISHM‐Benelux and of the activities of the last year. He mentioned the temporary enlargement of the executive committee to give a new generation a chance to gain experience in the ISHM organisation and to take up some new activities. In order to raise publicity for ISHM and Hybrid Circuits a new brochure has been designed and a set of material for demonstration purposes was collected. With the material every member of the chapter can easily set up a presentation for schools or customers. This year ISHM‐Benelux has grown from 85 to 100 members and enjoys a healthy financial situation. Next year again emphasis will be put on public relations. Professor R. Govaerts signified that he was no longer available for a position in the executive committee. As Prof. Govaerts has been very active and stimulating for the ISHM‐Benelux Chapter from its foundation in 1976 up to now, the general membership meeting decided to appoint him as (the first) honorary member of this chapter. Except for Professor Govaerts, the sitting executive committee, consisting of 15 members, was re‐elected for another year. After the European conferences in Bournemouth and Hamburg the ISHM‐Benelux chapter is asked to organise the 1991 Conference. The executive committee is already looking out for candidates for a function in the organising committee, which must be formed in the coming year.

Details

Microelectronics International, vol. 4 no. 1
Type: Research Article
ISSN: 1356-5362

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Abstract

Details

Mental Health Review Journal, vol. 5 no. 2
Type: Research Article
ISSN: 1361-9322

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