Warpage issues in large area mould embedding technologies

The need for higher communications speed, heterogeneous integration and further miniaturisation have increased demand in developing new 3D integrated packaging technologies which include wafer-level moulding and chip-to-wafer interconnections . Wafer-level moulding refers to the embedding of multiple chips or heterogeneous systems on the wafer scale. This can be achieved through a relatively new technology consisting of thermal compression moulding of granular or liquid epoxy moulding compounds. Experimental measurements from compression moulding on 8” blank wafers have shown an unexpected tendency to warp into a cylindrical-shape following cooling from the moulding temperature to room temperature. Wafer warpage occurs primarily as a result of a mismatch between the coefficient of thermal expansion of the resin compound and the Si wafer. This paper will delve into possible causes of such asymmetric warpage related to mould, dimensional and material characteristics using finite element (FE) software (ANSYS Mechanical). The FE model of the resin on wafer deposition will be validated against the measurement results and will be used to deduce appropriate guidelines for low warpage wafer encapsulation.peer-reviewe

Introducing Daughters of Themis: International Network of Female Business Scholars

This paper introduces a special issue of the International and Comparative Corporate Law Journal resulting from the inaugural workshop of Daughters of Themis: International Network of Female Business Scholars in June 2015. The network fosters a strong sense of collegiality motivated by the sincere belief that our research and ultimately the broader academic endeavour is so much richer and enjoyable when we work together to help resolve society’s great challenges. At its heart is its annual workshop where a small number of participants can enjoy sustained discussion of their papers in an inclusive and collegiate atmosphere, genuine collaboration across disciplines is fostered, and informal support and mentoring of junior scholars by more senior participants can take place

Rift in Antarctic Glacier: a Unique Chance to Study Ice Shelf Retreat

It happened again, but this time it was caught in the act. During the last week of September 2011 a large transverse rift developed across thefloating terminus of West Antarcticas PineIsland Glacier, less than 5 years after its lastlarge calving event, in 2007 (Figure 1). PineIsland Glaciers retreat has accelerated substantiallyin the past 2 decades, and it is nowlosing 50 gigatons of ice per year, or roughly 25 of Antarcticas total annual contributionto sea level rise [Rignot et al., 2008]. The glaciers recent accelerated retreat is likely triggered by ocean warming and increased submarine melting. As such, it is of significant interest to glaciologists and of heightened societal relevance

How do FTSE100 companies frame gender equality?

This study interrogates the factors motivating corporate engagement with gender equality. When FTSE100 companies discuss boardroom diversity, how are those discussions framed? The findings reveal three dominant framing techniques used: (1) valuing diversity; (2) merit; and (3) nurturing talent. The findings from this study have implications for those seeking to further the debate on boardroom diversity. It demonstrates empirical support for the claim that sincere equality may be eluded or impeded by a myopic corporate focus on the ‘business case’ and treating gender as a further tool for competitive gain. However there are two more positive implications to help set the agenda for further activity in this area. First, this study pinpoints more concretely the reasons why companies value diversity. Reflecting local markets and consumers is a strong motivation. Second and more tentatively, the reported focus on nurturing women through the ‘talent pipeline’, training leaders to be aware of their ‘unconscious biases’, and exploring barriers to progression suggests that workplace structural barriers to equality are being acknowledged

How do FTSE100 companies frame gender equality?

This study interrogates the factors motivating corporate engagement with gender equality. When FTSE100 companies discuss boardroom diversity, how are those discussions framed? The findings reveal three dominant framing techniques used: (1) valuing diversity; (2) merit; and (3) nurturing talent. The findings from this study have implications for those seeking to further the debate on boardroom diversity. It demonstrates empirical support for the claim that sincere equality may be eluded or impeded by a myopic corporate focus on the ‘business case’ and treating gender as a further tool for competitive gain. However there are two more positive implications to help set the agenda for further activity in this area. First, this study pinpoints more concretely the reasons why companies value diversity. Reflecting local markets and consumers is a strong motivation. Second and more tentatively, the reported focus on nurturing women through the ‘talent pipeline’, training leaders to be aware of their ‘unconscious biases’, and exploring barriers to progression suggests that workplace structural barriers to equality are being acknowledged