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The aim of this paper is to characterize the rheological properties of the flux media exposed to different levels of solicitation and to determine its influence on the rheology of the solder paste. The data obtained experimentally are fundamental for the development of numerical models that allow the simulation of the printing process of printed circuit boards (PCB).

Rheological tests were performed using the Malvern rheometer Bohlin CVO. These experiments consist of the analysis of the viscosity, yield stress, thixotropy, elastic and viscous properties through oscillatory tests and the capacity to recover using a creep-recovery experiment. The results obtained from this rheological analysis are compared with the rheological properties of the solder paste F620.

The results have shown that the flux is viscoelastic in nature and shear thinning. The viscosity does not decrease with increasing solicitations, except in the case where the flow is withdrawn directly from the bottle. Even if the solder paste shows a thixotropic behavior, this is not the case of the flux, meaning that this property is given by the metal particles. Furthermore, the oscillatory tests proved that the flux presents a dominant solid-like behavior, higher than the solder paste, meaning that the cohesive/tacky behavior of the solder paste is given by the flux.

To complement this work, printing tests are required.

This work demonstrates the importance of the rheological characterization of the flux in order to understand its influence in the solder paste performance during the stencil printing process.

The purpose of this paper is to carry out a systematic review of the state of the art of the environmental training theme and to propose a research agenda to shed light on this subject by suggesting new research in the area.

This is a systematic review of the state of the art of the environmental training theme.

The authors’ main contribution is the proposal of a research agenda with 11 recommendations for future research, such as conducting research in developed countries; research focusing only on environmental training; qualitative research using case studies; research that explores the co-evolution of environmental training practices with environmental management practices and with the maturity stage of environmental management in organizations; and research that addresses all aspects of environmental training phases proposed by ISO 10015: 2001.

This is the most recent research which conducts a systematic review of the state of the art on environmental training and proposes a research agenda with several suggestions that can guide researchers in human resources, environmental management, sustainability and supply chain management.

The purpose of the present study was to review the thermo-mechanical challenges of reflowed lead-free solder joints in surface mount components (SMCs). The topics of the review include challenges in modelling of the reflow soldering process, optimization and the future challenges in the reflow soldering process. Besides, the numerical approach of lead-free solder reliability is also discussed.

Lead-free reflow soldering is one of the most significant processes in the development of surface mount technology, especially toward the miniaturization of the advanced SMCs package. The challenges lead to more complex thermal responses when the PCB assembly passes through the reflow oven. The virtual modelling tools facilitate the modelling and simulation of the lead-free reflow process, which provide more data and clear visualization on the particular process.

With the growing trend of computer power and software capability, the multidisciplinary simulation, such as the temperature and thermal stress of lead-free SMCs, under the influenced of a specific process atmosphere can be provided. A simulation modelling technique for the thermal response and flow field prediction of a reflow process is cost-effective and has greatly helped the engineer to eliminate guesswork. Besides, simulated-based optimization methods of the reflow process have gained popularity because of them being economical and have reduced time-consumption, and these provide more information compared to the experimental hardware. The advantages and disadvantages of the simulation modelling in the reflow soldering process are also briefly discussed.

This literature review provides the engineers and researchers with a profound understanding of the thermo-mechanical challenges of reflowed lead-free solder joints in SMCs and the challenges of simulation modelling in the reflow process.

The unique challenges in solder joint reliability, and direction of future research in reflow process were identified to clarify the solutions to solve lead-free reliability issues in the electronics manufacturing industry.

This study aims to determine the minimum force required to pull out a surface mount component in printed circuit boards (PCBs) during the wave soldering process through both experimental and numerical procedures.

An efficient experimental technique was proposed to determine the minimum force required to pull out a surface mount component in PCBs during the wave soldering process.

The results showed that the pullout force is approximately 0.4 N. Comparing this value with the simulated force exerted by the solder wave on the component ( ≅ 0.001158 N), it can be concluded that the solder wave does not exert sufficient force to remove a component.

This study provides a deep understanding of the wave soldering process regarding the component pullout, a critical issue that usually occurs in the microelectronics industry during this soldering process. By applying both accurate experimental and numerical approaches, this study showed that more tests are needed to evaluate the main cause of this problem, as well as new insights were provided into the depositing process of glue dots on PCBs.

In the past, simply fulfilling economic performance alone was critical to ensuring the success of companies and their shareholders, but this traditional perspective is not compatible with society's current demands, as there is increasing social pressure on organizations to become more sustainable and reduce impacts on the environment, promoting sustainable results in their business processes. In this context, the specialized literature states that human resources management (HRM) is considered a central aspect for building sustainable organizations, in particular, the area of green human resources management (GHRM). Thus, this study analyzes the relationship between GHRM and corporate social responsibility (CSR) in Brazilian companies. Company's age, size, ISO 9001 and 14001 certifications are the control variables.

The authors adopted a quantitative approach in conducting the survey. Four waves of email were sent to HR and CSR managers from 853 Brazilian companies from the metallurgical, automotive and chemical industries. In total, 79 questionnaires were fully answered, higher than the minimum sample calculated by the G*Power 3.1 software, which corresponds to a return rate of 9.26%. For the analysis of the results, the partial least squares method was used.

This research identifies that GHRM practices, in fact, positively influence CSR practices. The findings evidence that practices of performance evaluation, teamwork and recruitment and selection are the most important for a better CSR performance. The research results indicate that the “ISO 9001 certification” control variable also has a positive and significant effect on CSR and that the size of the company, the age of the company and the ISO 14001 certification, in the analyzed sample, were not relevant (as control variables) for CSR.

Current literature highlights the gap between GHRM and CSR. This relationship is not explored in Brazil. The study uses a new theoretical model, and it fills the gap identified in the literature. This paper brings important theoretical and managerial contributions. It is the first in the literature to show, in an empirical way, the positive relationship between GHRM and CSR, contributing in an original way to the state of the art of the GHRM and CSR theme. In addition, this research adds empirical evidence on GHRM and CSR in Latin America/South America/Brazil.

This chapter proposes a sustainable trajectory for leadership and diversity, equity, and inclusion (DEI) organizational change in higher education. Leadership practices and strategies necessary to construct and implement change and cultivate diverse, equitable, and inclusive educational environments are deliberated, with particular emphasis on transformational leadership theories and practices. These types of organization development practices produce concrete transformation in institutions that have long-established, inert, and deeply entrenched cultures in which discriminatory or even racist practices have been deeply embedded and accepted over time. The complex dynamics of transformation in higher education, brought on, in part, by the rigidity of its organizational structure coupled with its history and foundation in racism and racist practices, makes achieving sustainable change difficult in higher education. Transformational change requires the creation of new mental models through meaning making and perspective sharing that allow individuals in higher education to think differently about how higher education institutions should operate given the rapid shifts in our society. Organizational change leaders must engage in deep, purposeful, and critical reflection and examination of the organization's culture to lay the groundwork for significant change. The chapter explores topics such as leading change through transformational leadership and the styles, practices, and capabilities associated with it, leadership development, strategic diversity leadership, and the Chief Diversity Officer (CDO) as change leader in higher education. The internal and external environmental trends demanding substantive change in higher education continue to intensify over time. The demand for pervasive transformation in higher education is resounding, and institutional leaders must be open to and even drive new and innovative approaches to shifting its very core – its DNA, its culture – to meet those demands.

This chapter examines the efforts undertaken to restructure the legal education system in South Africa and Nigeria. It investigates the connection between contextual influences and professional development, particularly with respect to the concept of legal information literacy and the value of acquired educational skills in the context of legal practice. The chapter provides insights to the needs and challenges for graduate requirement for legal information literacy skills in the effort to ensure productivity in the legal education system in Africa. Data were obtained using both quantitative and qualitative approaches. Outcomes from the study were supportive of the importance of information literacy as central to the development of professional competence. Findings also point to a need for greater collaboration between the legal education system and the legal profession in narrowing the gap between the teaching and practice of law specifically in the design and implementation of an information literacy framework for the legal education system.