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The reliability of 0.5 mm pitch, 32‐pin thin small outline package (TSOP) solder joints has been studied by experimental temperature cycling and a cost‐effective 3‐D non‐linear finite element analysis. Temperature cycling results have been presented as a Weibull distribution, and an acceleration factor has been established for predicting the failure rate at operating conditions. Thermal fatigue life of the corner solder joints has been estimated based on the calculated plastic strain, Coffin‐Manson law and isothermal fatigue data on solders. A correlation between the experimental and analytical results has also been made. Furthermore, failure analysis of the solder joints has been performed using scanning electron microscopy (SEM) and an optical method. Finally, a quantitative comparison between the Type‐I and Type‐II TSOP solder joints has been presented.

This chapter examines how innovation and research are essential to the advancement of science, the economy, and society. We examine the current status of scientific research in Saudi Arabia, highlighting issues like financial limitations and a lack of skilled researchers. We emphasize how important it is to develop the next generation of scientists in order to transform existing practices and improve the state of scientific research in the country.

Proficiency in research and innovation is crucial for expanding the frontiers of knowledge, empowering scientists to tackle intricate problems, and advancing scientific rigor. These abilities also support the use of evidence in decision-making, enabling researchers to provide empirical data that inform practices and policies in a variety of industries. Sustained growth requires the formation of future leaders, who promote knowledge exchange and multidisciplinary collaboration.

Despite Saudi Arabia’s significant spending on science, problems still exist. Addressing governance deficiencies is demonstrated by the establishment of the Research, Development, and Innovation Authority in 2021. The nation has grown in the world’s scientific rankings, drawing eminent specialists and fostering cross-border cooperation. Still, there is room for improvement, especially when it comes to fostering a culture of research, improving financing sources, and encouraging international collaboration. It is imperative that these problems are resolved in order to avoid stagnation, guarantee ongoing innovation, and take advantage of chances for society’s progress.

The chapter ends with a call to action that highlights how quickly improvements must be made. Failing to do so runs the risk of stifling the advancement of science, preventing the creation of new technologies, and prolonging complicated issues. To lower risks, seize opportunities, and ensure that research and innovation continue to advance for the good of society, immediate action is necessary.

This chapter uses quarterly county-level data from 2006 to 2014 to examine the direction of causality in the relationship between per capita opioid prescription rates and employment-to-population ratios. We first estimate models of the effect of per capita opioid prescription rates on employment-to-population ratios, instrumenting opioid prescriptions for younger ages using opioid prescriptions to the elderly. We find that the estimated effect of opioids on employment-to-population ratios is positive but small for women, while there is no relationship for men. We then estimate models of the effect of employment-to-population ratios on opioid prescription rates using a shift-share instrument and find ambiguous results. Overall, our findings suggest that there is no simple causal relationship between economic conditions and the abuse of opioids. Therefore, while improving economic conditions in depressed areas is desirable for many reasons, it is unlikely on its own to curb the opioid epidemic.

Alloy 42 and, similarly, Kovar were developed to provide metallic feed‐throughs from the interior of ceramic components to the exterior. The low coefficient of thermal expansion (CTE) of ceramic needs to be almost matched by the feed‐through metal to allow reliable hermetically sealed connections. For this purpose these alloys have served very well. However, because of its wide‐spread use for military applications, for which component hermeticity has been required, as well as because of the easier attachment of low‐CTE die to low‐CTE lead frames, Alloy 42 has found its way into plastic components with often disastrous results. When surface mount solder joints connect materials with different CTEs, global thermal expansion mismatches result. Also, if the materials to which the solder bonds have CTEs that differ from the CTE of solder, local thermal expansion mismatches result. These thermal expansion mismatches are the cause of most SM solder joint failures. Alloy 42 and Kovar not only cause significant global and local thermal expansion mismatches, but are inherently more difficult to solder because of the low solubility of nickel and iron, the main constituents of these alloys, in tin. Pull tests of solder joints show that under the best of circumstances a solder joint that includes an Alloy 42 or Kovar surface is only half as strong as one made to copper surfaces.

The primary purpose of this study is to integrate the stimulus-organism-behavior-accomplishment (S-O-B-A) paradigm to investigate the chain effect of university students' perceived university and family support on their entrepreneurial action (EA) with a serial mediation of their attitude and intention.

This study introduces stratified random sample to choose respondents and a cross-sectional research design. partial least square-structural equation modeling (PLS-SEM) has applied to thoroughly investigate the behavioral intention concerned with students' entrepreneurship action.

The findings explored that perceived university support and family supports positively impact students' entrepreneurship attitude, where perceived family support creates statistically more powerful implications than university support. Students' attitude toward entrepreneurship positively affects their entrepreneurial intent, and finally, the entrepreneurial pursuit has an affirmative impact on students' EA.

This study incorporates the S-O-B-A paradigm for the very first time to investigate the effects of students' environmental support on their EA with double mediation by their attitude and intention.

Online shopping around the world is growing exponentially, especially during the COVID-19 pandemic. This study aims to examine how an online customer's purchasing experience influences his/her buying intention and willingness to believe in fraud news, as well as the ripple impact of satisfaction and trust, with gender as a moderator in an emerging economy during COVID-19.

Based on the underpinning of the stimulus-organism-behavior-consequence (SOBC) theory, the research model was developed, and collected data from 259 respondents using convenience samples technique. Next, the data were analyzed using partial least squares-based structural equation modeling (PLS-SEM), SPSS (Statistical Package for the Social Sciences) and Hayes Process Macro.

The study results confirmed that the online shopping experience (OSE) has positive impact on customers' satisfaction (CS), purchase intention (PI) and customer trust (CT); CS has positive effects on trust toward online shopping and their future product PI; future product PI significantly affects customers' propensity to believe and act on fraud news (PBAFN). The finding also states that gender moderates the relationships of CS to PI, OSE to PI and PI to PBAFN, but doesn't moderate the CT to PI relationship.

The study findings will assist policymakers and online vendors to win customers' hearts and minds' through confirming satisfaction, trust and a negative attitude toward fake news, which will lead to customer loyalty and the sustainable development of the industry. Finally, the limitations and future research directions are discussed.

The adverse environmental impacts of menstrual products are a significant concern because of their widespread use and non-biodegradability. With various global and regional initiatives on sustainability, there is now greater public awareness about environmental protection. This heightened awareness has resulted in the exploration of alternative methods to reduce waste, such as the development and use of sustainable menstrual products. This study aims to examine the factors that influence Indian women’s purchasing intention in relation to sustainable menstrual products. The study uses the Stimulus–Organism–Behavior–Consequence (SOBC) theory as the appropriate grounded theory to explain these determinants.

Cross-sectional data were collected from 720 women who have been using sustainable menstrual products. For analysing the model, the study performed structural equation modelling using AMOS.

The study’s results indicated that health consciousness, sustainability knowledge and environmental responsibility are positively associated with self-identity and mindfulness. Additionally, the study found that organism states have a positive impact on the purchase intention of sustainable menstrual products. Furthermore, there was a significant relationship observed between purchase intention and mindful consumption. The study also discovered significant positive relationships between satisfaction and key associations.

This study may be considered pioneering, as it establishes a connection between the usage of sustainable menstrual products and concepts such as mindfulness and mindful consumption.

This paper presents a solder joint engineering reliability model — Solder Reliability Solutions** (SRS) — and its application to surface mount area‐array and chip‐scale assemblies. The model is validated by failure data from 33 accelerated thermal cycling tests, and test vehicles covering several generations of component, assembly and circuit board technologies and a variety of test conditions. The SRS model has been implemented as a PC‐based design‐for‐reliabilltytool that enables rapid assessment of assembly reliability in the early stages of product development.

A viscoplastic constitutive model, the Anand model, in which plasticity and creep are unified and described by the same set of flow and evolutionary relations, was applied to represent the inelastic deformation behavior for solder alloys. After conducting creep tests and constant strain rate tests, the material parameters for the Anand model of the Pb‐rich content solder 92.5Pb5Sn2.5Ag were determined from the experimental data using a nonlinear fitting method. The material parameters for 60Sn40Pb, 62Sn36Pb2Ag and 96.5Sn3.5Ag solders were fitted from the conventional model in the literature where plasticity and creep are artificially separated. Model simulations and verifications reveal that there is good agreement between the model predictions and experimental data. Some discussion on this unified model is also presented. This viscoplastic constitutive model for solder alloys possesses some advantages over the separated model. The achieved Anand model has been applied in finite element simulation of stress/strain responses in solder joints for chip component, thin quad flat pack and flip‐chip assembly. The simulation results are in good agreement with the results in the literature. It is concluded that the Anand model could be recommended as a useful material model for solder alloys and can be used in the finite element simulation of solder joint reliability in electronic packaging and surface mount technology.

The purpose of this paper is to examine the drug use and criminal justice factors related to hepatitis C virus (HCV) antibody reactivity among rural women in the USA recruited from local jails.

Analyses included 277 women with a history of injection drug use from three rural jails in Kentucky. Participants completed health and drug use questionnaires and received antibody testing for HCV.

The majority of women tested reactive to the HCV antibody (69 percent). Reactivity was associated with risk factors, such as unsterile needle use. Criminal justice variables, including an increased likelihood of prison incarceration, an earlier age of first arrest, and a longer incarceration history, were associated with HCV reactive tests. Participants also endorsed several barriers to seeking healthcare before entering jail that were more prevalent in women testing HCV reactive regardless of HCV status awareness before entering jail.

Injection and high-risk sharing practices as well as criminal justice factors were significantly associated with HCV reactivity. Future research and practice could focus on opportunities for linkages to HCV treatment during incarceration as well as during community re-entry to help overcome real or perceived treatment barriers. The current study highlights the importance of the criminal justice system as a non-traditional, real-world setting to examine drug use and related health consequences such as HCV by describing the association of high-risk drug use and criminal justice consequences with HCV among rural women recruited from local jails.