The University of Ottawa faculty engineering, in Canada, is home to multiple rapid prototyping facilities as well entrepreneurship spaces. This includes a makerspace, machine shop and design space for any student use free charge. Due COVID-19 the spaces were either shut down or running virtual activities where possible. In absence significant content learners, computer simulations reality devel...

An experiment on the early stages of intermetallic compound layer growth during soldering and its theoretical analysis were conducted with the intent to study the controlling factors of the process. An experimental technique based on fast dipping and pulling of a copper coupon in liquid solder followed by optical microscopy allowed the authors to study the temporal behavior of the sample on a s...

The aim of this study was to determine the specific agent responsible for eczema on the forearms of 2 electronic assemblers who cleaned out a flux-spraying unit once a week. Soldering flux can be a source of skin irritation as well as allergy. Patch test with dried flux residue (as is) and rosin in dilution series of 20%, 10%, and 1% in olive oil was performed. Readings were taken on day 2 and ...