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Article
Publication date: 10 April 2009

M. Norén, S. Brunner, C. Hoffmann, W. Salz and K. Aichholzer

One of the major driving forces for the electronic industry is the consumer handheld units, where even more functions in a smaller volume and with longer battery time are…

222

Abstract

Purpose

One of the major driving forces for the electronic industry is the consumer handheld units, where even more functions in a smaller volume and with longer battery time are requested. This leads to a higher energy‐ and interconnect‐density. Two challenges related to this request, that the industry is facing, are thermal management and reliability. This paper aim to discuss some aspects of using flip chip (FC) technology on low temperature cofired ceramics (LTCC) for this kind of products and to focus on the heat dissipation problem of an FC mounted die.

Design/methodology/approach

Test designs were developed and built to investigate SnAgCu bumps on LTCC, underfill and five different LTCC designs. The LTCC design parameters were thermal vias and heat spreaders. In the experimental part, the semiconductor junction temperature was measured over a diode in the semiconductor. Cross sections and infrared thermal imaging were used. The experiments were accompanied by FE‐modeling using ANSYS workbench.

Findings

The main reduction in temperature is related to the use of thermal vias and a via offset smaller than 60 μm. A 100 μm via diameter gives only a minor increase in the semiconductor junction temperature. Reducing the LTCC substrate thickness will decrease the junction temperature further.

Originality/value

This paper shows that FC on LTCC is a promising key technology for power amplifier modules.

Details

Soldering & Surface Mount Technology, vol. 21 no. 2
Type: Research Article
ISSN: 0954-0911

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Article
Publication date: 6 June 2023

Guilherme Tolentino, Guillaume Parent, Olivier Ninet, Mathieu Rossi, Jean Vianei Leite and Jonathan Blaszkowski

The horizontal rotational single-sheet tester (RSST) suffers from weaknesses such as the reduced size of test samples, measurement disturbances due to magnetic flux leakage and…

31

Abstract

Purpose

The horizontal rotational single-sheet tester (RSST) suffers from weaknesses such as the reduced size of test samples, measurement disturbances due to magnetic flux leakage and nonhomogeneity of field in the measurement area. Although the vertical RSST allows to overcome the first two aforementioned drawbacks, the heterogeneity of the field in the test sample remains an issue. In addition, there is still a lack of device standardization to ensure test repeatability, as already is well established with the Epstein frame. This paper aims to investigate the influence of several parameters on the field homogeneity in the test sample.

Design/methodology/approach

A fully 3D finite element model of a vertical RSST is developed and used to perform a sensibility study on several geometrical parameters.

Findings

The influence of several parameters on the field homogeneity in the test sample, such as the geometrical dimensions of the yokes, the presence or not of holes drilled inside the test sample for B-coil placement as well as the size of the H-coils and B-coils, is addressed.

Originality/value

It is expected that this study will contribute to the optimization and standardization vertical RSSTs.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 42 no. 4
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 29 January 2025

Feifei Shao, Nianxin Wang and Xing Wan

Research on decision rights partitioning and its impact on platform performance has predominantly focused on single rights, leading to inconclusive results. This study is driven…

16

Abstract

Purpose

Research on decision rights partitioning and its impact on platform performance has predominantly focused on single rights, leading to inconclusive results. This study is driven by a more nuanced objective of exploring diverse governance models that can enhance the performance of sharing platforms across different contexts. Rather than delegating single decision right to users, this approach partitions several essential decision rights concurrently throughout the transaction process. By examining the complex relationships between multiple decision rights partitioning and platform performance, this study identifies and explains suitable governance models that are tailored to specific contextual factors for improving the performance of sharing platforms.

Design/methodology/approach

Collecting data from 60 sharing platforms in China, this study employs a combination of cluster and configuration analyses to address research questions.

Findings

The study explores three strategic decision rights partitioning modes widely adopted by sharing platforms. It further identifies four governance models for sharing platforms, which are termed as conservative seller model, conservative buyer model, aggressive seller model and aggressive buyer model, related to certain contextual factors.

Originality/value

In addressing platform governance as key to sharing platform success, the study contributes to the literature by investigating how multiple-rights partitioning portfolios and strategic differentiation in decision rights partitioning can enhance platform performance.

Details

Industrial Management & Data Systems, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0263-5577

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Article
Publication date: 1 June 2004

Hans Vande Sande, François Henrotte, Kay Hameyer and Ludo Froyen

For anisotropic materials, the magnetic field vector H→ and the flux density vector B→ are parallel with each other only along a few distinct directions. When performing…

377

Abstract

For anisotropic materials, the magnetic field vector H→ and the flux density vector B→ are parallel with each other only along a few distinct directions. When performing unidirectional measurements, only the component of B→ along the direction under consideration is measured. It is not possible to deduce the angle between B→ and H→ from unidirectional measurements alone. For ferromagnetic materials having a Goss‐texture, as most transformer steels have, this paper demonstrates a way to compute this angle a posteriori, by the combination of measurements with a physical anisotropy model.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 23 no. 2
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 1 September 1957

IN A PAPER PRESENTED TO THE 12TH Annual Meeting of the American Society of Lubrication Engineers in April, at Detroit, Leon Salz of the Magnus Chemical Company described the…

15

Abstract

IN A PAPER PRESENTED TO THE 12TH Annual Meeting of the American Society of Lubrication Engineers in April, at Detroit, Leon Salz of the Magnus Chemical Company described the components and functions of press drawing lubricants. He referred to the highly competitive market among stamping and deep drawing plants that require overall production costs to be carefully calculated, and certainly this is very similar in this country. He said, “A miscalculation with respect to the difficulties that can be experienced in a drawing operation may nullify the anticipated profit. Not uncommon is the shop that submits a bid on the basis of experimental trial runs, only to find that serious problems arise in mass production”.

Details

Industrial Lubrication and Tribology, vol. 9 no. 9
Type: Research Article
ISSN: 0036-8792

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Publication date: 19 August 2017

Mikel Larreina and Leire Gartzia

In the last decades, many of the most talented and promising young graduates in the developed economies have joined the financial industry. Simultaneously, ill-designed…

Abstract

In the last decades, many of the most talented and promising young graduates in the developed economies have joined the financial industry. Simultaneously, ill-designed incentives’ schemes have favored the development of a culture in which excessive greed, free-riders’ behavior, unreasonable appetite for risk, and short-term decision making have endangered the economy and, potentially, have laid the foundations for financial, economic, social, and environmental crises.

In this chapter, we review current challenges in the financial industry from the lens of human and social capital. We examine some of the factors that allowed unethical behavior and a short-term financial focus in the financial sector, examining how compensation and an extremely competitive culture became key elements that favored greedy and manipulative behavior and ultimately generated socially harmful human and social capital in the financial sector. Finally, we discuss the emergence of a number of game-changers (namely, Brexit, FinTech, the growing relevance of ethical standards, and the increasing participation of women and millennials in the industry) that might represent potential promotors of change and help restructure and reshape the financial industry.

Details

Human Capital and Assets in the Networked World
Type: Book
ISBN: 978-1-78714-828-4

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Article
Publication date: 1 July 2014

Robert Hurley, Xue Gong and Adeela Waqar

The purpose of this paper is to explore a stakeholder trust model of organizations and applies the model to diagnose the loss of trust in large banks (Universal and Investment…

3978

Abstract

Purpose

The purpose of this paper is to explore a stakeholder trust model of organizations and applies the model to diagnose the loss of trust in large banks (Universal and Investment Banks) after the global financial crisis (GFC). Prescriptions for the repair of trust are offered along with the diagnosis.

Design/methodology/approach

The theoretical underpinnings of the stakeholder trust model of organizations are supported using the literature in marketing and management. Case study data on large and community banks are used to explore differences in these type of banks as they relate to trustworthiness as articulated in the stakeholder trust model of organizations.

Findings

The stakeholder trust model of organizations and six dimensions of trustworthiness help to explain why trust eroded in large banks during the GFC but increased or remained stable among some community banks. This diagnosis of the loss of trust also points to interventions that will be necessary to restore trust going forward among large banks.

Research limitations/implications

Scholars in marketing need to develop a more macro view of the firm that examines trust beyond customers to reflect a wider stakeholder focus and issues of corporate social responsibility, trust reputation and license to operate.

Practical implications

This paper points out strategic changes, some of which are radical, that will be required to restore and sustain stakeholder trust in large banks.

Social implications

Building trustworthy banks is essential to social and economic progress.

Originality/value

This paper addresses a void in marketing research by moving beyond the product and transactional level focus and framing a more macro oriented approach to understand trust in banks.

Details

International Journal of Bank Marketing, vol. 32 no. 5
Type: Research Article
ISSN: 0265-2323

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Article
Publication date: 1 March 1985

Tomas Riha

Nobody concerned with political economy can neglect the history of economic doctrines. Structural changes in the economy and society influence economic thinking and, conversely…

2713

Abstract

Nobody concerned with political economy can neglect the history of economic doctrines. Structural changes in the economy and society influence economic thinking and, conversely, innovative thought structures and attitudes have almost always forced economic institutions and modes of behaviour to adjust. We learn from the history of economic doctrines how a particular theory emerged and whether, and in which environment, it could take root. We can see how a school evolves out of a common methodological perception and similar techniques of analysis, and how it has to establish itself. The interaction between unresolved problems on the one hand, and the search for better solutions or explanations on the other, leads to a change in paradigma and to the formation of new lines of reasoning. As long as the real world is subject to progress and change scientific search for explanation must out of necessity continue.

Details

International Journal of Social Economics, vol. 12 no. 3/4/5
Type: Research Article
ISSN: 0306-8293

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Book part
Publication date: 4 December 2009

George Steinmetz

Anthropologists have long discussed the ways in which their discipline has been entangled, consciously and unconsciously, with the colonized populations they study. A foundational…

Abstract

Anthropologists have long discussed the ways in which their discipline has been entangled, consciously and unconsciously, with the colonized populations they study. A foundational text in this regard was Michel Leiris' Phantom Africa (L'Afrique fantôme; Leiris, 1934), which described an African ethnographic expedition led by Marcel Griaule as a form of colonial plunder. Leiris criticized anthropologists' focus on the most isolated, rural, and traditional cultures, which could more easily be described as untouched by European influences, and he saw this as a way of disavowing the very existence of colonialism. In 1950, Leiris challenged Europeans' ability even to understand the colonized, writing that “ethnography is closely linked to the colonial fact, whether ethnographers like it or not. In general they work in the colonial or semi-colonial territories dependent on their country of origin, and even if they receive no direct support from the local representatives of their government, they are tolerated by them and more or less identified, by the people they study, as agents of the administration” (Leiris, 1950, p. 358). Similar ideas were discussed by French social scientists throughout the 1950s. Maxime Rodinson argued in the Année sociologique that “colonial conditions make even the most technically sophisticated sociological research singularly unsatisfying, from the standpoint of the desiderata of a scientific sociology” (Rodinson, 1955, p. 373). In a rejoinder to Leiris, Pierre Bourdieu acknowledged in Work and Workers in Algeria (Travail et travailleurs en Algérie) that “no behavior, attitude or ideology can be explained objectively without reference to the existential situation of the colonized as it is determined by the action of economic and social forces characteristic of the colonial system,” but he insisted that the “problems of science” needed to be separated from “the anxieties of conscience” (2003, pp. 13–14). Since Bourdieu had been involved in a study of an incredibly violent redistribution of Algerians by the French colonial army at the height of the anticolonial revolutionary war, he had good reason to be sensitive to Leiris' criticisms (Bourdieu & Sayad, 1964). Rodinson called Bourdieu's critique of Leiris' thesis “excellent’ (1965, p. 360), but Bourdieu later revised his views, noting that the works that had been available to him at the time of his research in Algeria tended “to justify the colonial order” (1990, p. 3). At the 1974 colloquium that gave rise to a book on the connections between anthropology and colonialism, Le mal de voir, Bourdieu called for an analysis of the relatively autonomous field of colonial science (1993a, p. 51). A parallel discussion took place in American anthropology somewhat later, during the 1960s. At the 1965 meetings of the American Anthropological Association, Marshall Sahlins criticized the “enlistment of scholars” in “cold war projects such as Camelot” as “servants of power in a gendarmerie relationship to the Third World.” This constituted a “sycophantic relation to the state unbefitting science or citizenship” (Sahlins, 1967, pp. 72, 76). Sahlins underscored the connections between “scientific functionalism and the natural interest of a leading world power in the status quo” and called attention to the language of contagion and disease in the documents of “Project Camelot,” adding that “waiting on call is the doctor, the US Army, fully prepared for its self-appointed ‘important mission in the positive and constructive aspects of nation-building’” a mission accompanied by “insurgency prophylaxis” (1967, pp. 77–78). At the end of the decade, Current Anthropology published a series of articles on anthropologists’ “social responsibilities,” and Human Organization published a symposium entitled “Decolonizing Applied Social Sciences.” British anthropologists followed suit, as evidenced by Talal Asad's 1973 collection Anthropology and the Colonial Encounter. During the 1980s, authors such as Gothsch (1983) began to address the question of German anthropology's involvement in colonialism. The most recent revival of this discussion was in response to the Pentagon's deployment of “embedded anthropologists” in Afghanistan and elsewhere in the Middle East. The “Network of Concerned Anthropologists” in the AAA asked “researchers to sign an online pledge not to work with the military,” arguing that they “are not all necessarily opposed to other forms of anthropological consulting for the state, or for the military, especially when such cooperation contributes to generally accepted humanitarian objectives … However, work that is covert, work that breaches relations of openness and trust with studied populations, and work that enables the occupation of one country by another violates professional standards” (“Embedded Anthropologists” 2007).3 Other disciplines, notably geography, economics, area studies, and political science, have also started to examine the involvement of their fields with empire.4

Details

Political Power and Social Theory
Type: Book
ISBN: 978-1-84950-667-0

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Article
Publication date: 11 August 2014

Sine Nørholm Just and Nico Mouton

The meaning of scandals like “Liborgate” is not given beforehand; it is constructed in the course of framing contests. The purpose of this paper is to provide a nuanced framework…

450

Abstract

Purpose

The meaning of scandals like “Liborgate” is not given beforehand; it is constructed in the course of framing contests. The purpose of this paper is to provide a nuanced framework for understanding such framing contests by re-conceptualizing them as rhetorical struggles.

Design/methodology/approach

A conceptual framework that combines modern framing theory, and classical stasis theory is applied to the rhetorical struggles over the meaning of “Liborgate.”

Findings

While rhetorical struggles over “Liborgate” overtly center on the issue of who is to blame, an analysis of the argumentative relations between competing frames leads to the conclusion that this political “blame game” is related to struggles over how to define the scandal, how to conceptualize its causes, and policy recommendations. Banks may have lost the battle of “Liborgate,” but the war over the meaning of financial culture is far from over.

Originality/value

The paper is theoretically and methodologically original in its combination of the theories of framing and stasis, and it provides analytical insights into how sense is made of financial culture in the wake of the financial crisis.

Details

Journal of Organizational Change Management, vol. 27 no. 5
Type: Research Article
ISSN: 0953-4814

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