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Scheduling Tests for Stacked 3D Chips under Power Constraints

This paper addresses test application time (TAT) reduction for core-based stacked 3D chips. In contrast to the traditional method of testing non-stacked chips where the same test schedule is applied both at wafer test and at final test, stacked 3D chips need a pre-bond test schedule for each individual chip and a different post-bond test schedule where all chips are jointly tested. We consider a s

Simulation of Gas Flow and Heat Transfer in Proton Exchange Membrane Fuel Cells

The simulated fuel cell has a porous electrode layer, gas flow duct and solid current collector. In terms of friction factor and Nusselt number, the characteristics of gas flow in the duct and heat transfer at heated catalyst surface were investigated by a computational calculation method. The effects of fuel cell current density, permeability of porous diffusion layers on the generation of heat,

RAID - a Robotic Workstation for the Disabled

The aim of the RAID project (Robot for Assisting the Integration of the Disabled) is to develop and demonstrate a prototype robotic workstation for use by disabled people. The RAID project is part of the European Community TIDE program (Technology for the socio-economic Integration of disabled and Elderly people). The robotized system is intended primarily for vocational use in an office environ

Cities and climate change: The great decarbonisation challenge

We are in the midst of “the critical decade”. It is now that our decisions and actions in relation to mitigation of and adaptation to climate change will determine the success or failure of decarbonisation transitions needed to avoid severe impacts of climate change. This is not solely a technological, social, economic or governance issue. Addressing climate change demands fundamentally different

Evaluation of the Telia scattered field measurement method for estimation of in-network performance of mobile terminal antennas

In this paper we present and evaluate a method for estimation of in-network performance of mobile terminal antennas developed by the Swedish telecom operator Telia. The Telia Scattered Field Measurement (TSFM) Method is intended to give a better estimate of the performance of the mobile terminal antenna as in an in-network fading scenario. The parameter measured from the TSFM method is referred t