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Article
Publication date: 1 March 1990

ZAKEL, E., SIMON, J. and SCHULER, S., Verbindungstechnik in der Elektronik, Vol. 2, No. 2, pp. 53–57, June (1990) TAB is an attractive microconnecting technology for chips with a…

Abstract

ZAKEL, E., SIMON, J. and SCHULER, S., Verbindungstechnik in der Elektronik, Vol. 2, No. 2, pp. 53–57, June (1990) TAB is an attractive microconnecting technology for chips with a high number of I/Os. The principles of TAB technology and some new developments are presented. These are concerned with the problems of reducing pressure during gang bonding and the absence of the possibility of bumping single chips. The solutions presented are bonding with a liquid gold‐tin cushion for stress compensation and the application of selective electroless plating solutions for the bumping process. The possibilities of making TAB technology available for small and medium‐size companies are pointed out.

Details

Microelectronics International, vol. 7 no. 3
Type: Research Article
ISSN: 1356-5362

Article
Publication date: 1 March 1991

K.K.T. Chung, E. Avery, A. Boyle, G. Dreier, W. Koehn, G. Govaert and D. Theunissen

The complexity of microelectronic circuits, their scale of integration and clock speed requirements have been increasing steadily. All these changes have the effect of increasing…

Abstract

The complexity of microelectronic circuits, their scale of integration and clock speed requirements have been increasing steadily. All these changes have the effect of increasing the power density of the microcircuits. ICs with a power of several watts and an area of over a square centimetre are quite common. Thus, there is more heat generated per device at die, component and substrate‐attach levels of electronic packaging. In order to maintain reliability of finished products, the junction temperature of the constituent devices must be kept low. It has been demonstrated that thermal management can be one key to lowering the cost and increasing the performance life of microelectronic products. The cost‐effectiveness of lowering device temperature has been demonstrated to be dramatic compared with the cost of thermal management materials. Proper thermal management of advanced microelectronic devices has to be addressed at all levels. One should address the problem from the basic level of die‐attach, through component‐attach, and eventually substrate‐attach to thermal drains. Thermal management is almost invariably coupled with a thermally induced stress problem. The increase in temperature at the device level also means a larger fluctuation of temperature from the ambient. Each cycle of on‐off for the device represents one thermal cycle. Stress‐induced failure due to coefficient of thermal expansion (CTE) mismatch is much more acute for higher power devices. In this paper, the authors address the issue of thermally induced stress on the microelectronic product at all levels of packaging, with major emphasis on component and substrate levels. Various ways and examples of reducing or eliminating this stress, which is a major cause of device failures, will be demonstrated. One of the proven methods is through the use of low Tg epoxies with high thermal stability.

Details

Microelectronics International, vol. 8 no. 3
Type: Research Article
ISSN: 1356-5362

Article
Publication date: 1 February 1993

O. Spalding

An important disadvantage of conducting adhesives is their inferior heat conductivity when compared with soft solder such as Sn60Pb40. Thermal simulations, however, show that, by…

Abstract

An important disadvantage of conducting adhesives is their inferior heat conductivity when compared with soft solder such as Sn60Pb40. Thermal simulations, however, show that, by using thinner layers of adhesive than of solder, the module's thermal resistance does not increase greatly. Test modules with four different silver filled epoxy adhesives and tin/lead solder were manufactured. These test modules contained power diodes, 30 A, 1000 V, die bonded onto Ag/Pt thick film conductors on alumina. The die bond adhesive layer thicknesses were typically 30 or 40 μm. For die bond solder layers the thickness was 90 μm. The alumina substrates were connected to 3 mm thick copper plates with filled epoxy or silicone adhesive. The thickness of these layers was 150 μm or 50 μm, respectively. Thermal resistance of the structures was measured. The results showed that good adhesion between joined surfaces is essential for optimised heat flow. The heat conductivity of an adhesive was only a secondary factor affecting the structure's thermal resistance. When the adhesive joint is of good quality, the replacement of solder with conductive adhesives does not increase the module's thermal resistance any more than as shown by the simulations. It should, however, be remembered that the printing of thin (< 20 μm) uniform layers is not always possible.

Details

Microelectronics International, vol. 10 no. 2
Type: Research Article
ISSN: 1356-5362

Article
Publication date: 23 November 2010

Nils Hoeller, Christoph Reinke, Jana Neumann, Sven Groppe, Christian Werner and Volker Linnemann

In the last decade, XML has become the de facto standard for data exchange in the world wide web (WWW). The positive benefits of data exchangeability to support system and…

Abstract

Purpose

In the last decade, XML has become the de facto standard for data exchange in the world wide web (WWW). The positive benefits of data exchangeability to support system and software heterogeneity on application level and easy WWW integration make XML an ideal data format for many other application and network scenarios like wireless sensor networks (WSNs). Moreover, the usage of XML encourages using standardized techniques like SOAP to adapt the service‐oriented paradigm to sensor network engineering. Nevertheless, integrating XML usage in WSN data management is limited by the low hardware resources that require efficient XML data management strategies suitable to bridge the general resource gap. The purpose of this paper is to present two separate strategies on integrating XML data management in WSNs.

Design/methodology/approach

The paper presents two separate strategies on integrating XML data management in WSNs that have been implemented and are running on today's sensor node platforms. The paper shows how XML data can be processed and how XPath queries can be evaluated dynamically. In an extended evaluation, the performance of both strategies concerning the memory and energy efficiency are compared and both solutions are shown to have application domains fully applicable on today's sensor node products.

Findings

This work shows that dynamic XML data management and query evaluation is possible on sensor nodes with strict limitations in terms of memory, processing power and energy supply.

Originality/value

The paper presents an optimized stream‐based XML compression technique and shows how XML queries can be evaluated on compressed XML bit streams using generic pushdown automata. To the best of the authors' knowledge, this is the first complete approach on integrating dynamic XML data management into WSNs.

Details

International Journal of Web Information Systems, vol. 6 no. 4
Type: Research Article
ISSN: 1744-0084

Keywords

Article
Publication date: 6 June 2016

David Forbes and Pornpit Wongthongtham

There is an increasing interest in using information and communication technologies to support health services. But the adoption and development of even basic ICT communications…

Abstract

Purpose

There is an increasing interest in using information and communication technologies to support health services. But the adoption and development of even basic ICT communications services in many health services is limited, leaving enormous gaps in the broad understanding of its role in health care delivery. The purpose of this paper is to address a specific (intercultural) area of healthcare communications consumer disadvantage; and it examines the potential for ICT exploitation through the lens of a conceptual framework. The opportunity to pursue a new solutions pathway has been amplified in recent times through the development of computer-based ontologies and the resultant knowledge from ontologist activity and consequential research publishing.

Design/methodology/approach

A specific intercultural area of patient disadvantage arises from variations in meaning and understanding of patient and clinician words, phrases and non-verbal expression. Collection and localization of data concepts, their attributes and individual instances were gathered from an Aboriginal trainee nurse focus group and from a qualitative gap analysis (QGA) of 130 criteria-selected sources of literature. These concepts, their relationships and semantic interpretations populate the computer ontology. The ontology mapping involves two domains, namely, Aboriginal English (AE) and Type II diabetes care guidelines. This is preparatory to development of the Patient Practitioner Assistive Communications (PPAC) system for Aboriginal rural and remote patient primary care.

Findings

The combined QGA and focus group output reported has served to illustrate the call for three important drivers of change. First, there is no evidence to contradict the hypothesis that patient-practitioner interview encounters for many Australian Aboriginal patients and wellbeing outcomes are unsatisfactory at best. Second, there is a potent need for cultural competence knowledge and practice uptake on the part of health care providers; and third, the key contributory component to determine success or failures within healthcare for ethnic minorities is communication. Communication, however, can only be of value in health care if in practice it supports shared cognition; and mutual cognition is rarely achievable when biopsychosocial and other cultural worldview differences go unchallenged.

Research limitations/implications

There has been no direct engagement with remote Aboriginal communities in this work to date. The authors have initially been able to rely upon a cohort of both Indigenous and non-Indigenous people with relevant cultural expertise and extended family relationships. Among these advisers are health care practitioners, academics, trainers, Aboriginal education researchers and workshop attendees. It must therefore be acknowledged that as is the case with the QGA, the majority of the concept data is from third parties. The authors have also discovered that urban influences and cultural sensitivities tend to reduce the extent of, and opportunity to, witness AE usage, thereby limiting the ability to capture more examples of code-switching. Although the PPAC system concept is qualitatively well developed, pending future work planned for rural and remote community engagement the authors presently regard the work as mostly allied to a hypothesis on ontology-driven communications. The concept data population of the AE home talk/health talk ontology has not yet reached a quantitative critical mass to justify application design model engineering and real-world testing.

Originality/value

Computer ontologies avail us of the opportunity to use assistive communications technology applications as a dynamic support system to elevate the pragmatic experience of health care consultations for both patients and practitioners. The human-machine interactive development and use of such applications is required just to keep pace with increasing demand for healthcare and the growing health knowledge transfer environment. In an age when the worldwide web, communications devices and social media avail us of opportunities to confront the barriers described the authors have begun the first construction of a merged schema for two domains that already have a seemingly intractable negative connection. Through the ontology discipline of building syntactically and semantically robust and accessible concepts; explicit conceptual relationships; and annotative context-oriented guidance; the authors are working towards addressing health literacy and wellbeing outcome deficiencies of benefit to the broader communities of disadvantage patients.

Details

Information Technology & People, vol. 29 no. 2
Type: Research Article
ISSN: 0959-3845

Keywords

Book part
Publication date: 27 December 2013

Leslie Rott

This chapter examines the everyday experiences of short women, focusing on the problems they face and the coping strategies used to navigate being short in a heightist society…

Abstract

Purpose

This chapter examines the everyday experiences of short women, focusing on the problems they face and the coping strategies used to navigate being short in a heightist society. Further, this chapter views height as a stigmatized identity, which both negatively and positively impacts short women.

Methodology

Sixteen qualitative interviews were conducted with women 5′2″ and under.

Findings

Using the literature on stress, and coping models laid out by social psychologists, this chapter elucidates the unique place of short women in American society.

Originality

While there has been a wealth of literature on how short stature impacts men, research on how short stature impacts women has been scant.

Details

Disability and Intersecting Statuses
Type: Book
ISBN: 978-1-78350-157-1

Keywords

Book part
Publication date: 26 August 2016

Elena Gutiérrez-García and Mónica Recalde

Dialogue has been an elusive concept for academics when it comes to its definition within organisational contexts. In spite of the vast amount of academic research, it is not easy…

Abstract

Dialogue has been an elusive concept for academics when it comes to its definition within organisational contexts. In spite of the vast amount of academic research, it is not easy to find concrete proposals – both from theoretical and empirical standpoints – that analyse how companies manage dialogue processes with their stakeholders. The aim of this chapter is to fill this gap by highlighting the role of dialogue in strategic decision-making processes. In order to achieve this purpose, this work is structured into two parts. Firstly, multidisciplinary literature regarding how Public Relations and Management studies research on dialogue is reviewed. Secondly, the chapter presents a managerial proposal of dialogue for decision-making processes called the IDEA model. This chapter aims to scale back the theoretical fragmentation of the concept of dialogue while looking into its practicality based on an original proposal for scholars and practitioners.

Details

The Management Game of Communication
Type: Book
ISBN: 978-1-78635-716-8

Keywords

Article
Publication date: 1 February 2009

Tobias Buchner

This article starts with a brief overview of the history of housing for people with intellectual disability in Austria. The system of care and Austrian disability policy are also…

Abstract

This article starts with a brief overview of the history of housing for people with intellectual disability in Austria. The system of care and Austrian disability policy are also examined, focusing on implementation of deinstitutionalisation and community living. The following analysis of services provided in the field of housing for people with intellectual disabilities shows that support is provided in undistinguished, generalised service packages based on a competency model. Academic research on community living is quite rare in Austria, and fails to take into account the subjective perspective of people with intellectual disabilities.

Details

Tizard Learning Disability Review, vol. 14 no. 1
Type: Research Article
ISSN: 1359-5474

Keywords

Article
Publication date: 26 July 2013

Susanna Levina Middelberg

The purpose of this paper is to identify, present and compare agricultural production financing alternatives available to grain producers in South Africa. From the South African…

Abstract

Purpose

The purpose of this paper is to identify, present and compare agricultural production financing alternatives available to grain producers in South Africa. From the South African perspective, agricultural land cannot always be utilised as collateral and therefore alternative financing has developed.

Design/methodology/approach

The study makes use of an exploratory study by applying qualitative techniques. The research population was agricultural finance providers in South Africa and semi‐structured interviews were conducted with representatives of the sample.

Findings

The production financing alternatives identified and presented include: grain contract financing; grain contract financing with additional collateral; and corporate farming. A comparison of these alternatives indicates that although the traditional balance sheet financing is a cheaper form of financing, using agricultural land as collateral has a number of limitations, especially within the South African context.

Practical implications

Using agricultural land as collateral to obtain production financing is not always viable considering the present South African agricultural environment. Commercial grain producers should therefore consider the identified alternative production financing.

Originality/value

Limited research on agricultural production finance from the South African perspective has been performed. Furthermore, no previous research on identifying production financing alternatives without utilising agricultural land as collateral has been performed. This paper therefore provides new knowledge by combining South African practice with theory.

Details

Agricultural Finance Review, vol. 73 no. 2
Type: Research Article
ISSN: 0002-1466

Keywords

Book part
Publication date: 7 November 2017

Erin Heinrich

The study reported in this chapter was designed to investigate how managers representing public relations (PR), human resources (HR), and corporate social responsibility (CSR…

Abstract

The study reported in this chapter was designed to investigate how managers representing public relations (PR), human resources (HR), and corporate social responsibility (CSR) departments use their organizations’ CSR initiatives to attract, engage, and retain job-seeking Millennials. To direct attention to a region that has been plagued with employee attraction and retention issues, this study focused this phenomenon as experienced by organizations located in the state of Michigan. Findings identify ways PR, HR, and CSR departments work together to infuse work cultures with CSR thinking. Four main themes and 14 subthemes emerged among interview data – suggesting that employee recruitment activities should evolve to more fully consider CSR in terms of employee value propositions, organizational culture, and empowering and developing employees.

Details

Corporate Social Responsibility, Sustainability, and Ethical Public Relations
Type: Book
ISBN: 978-1-78714-585-6

Keywords

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