Autogenous soldering of bands in dentofacial orthopedia

Nitrogen in IR Reflow Soldering

Evaluation of Autogenous Shrinkage in High-Performance Concrete

Recent tendencies in concrete technology have been towards to high- performance concrete with a low water-cement ratio. However, high performance concretes have some problems. One of the problems is early-age cracking due to autogenous shrinkage. This study presents the results of an experimental investigation carried out to evaluate the autogenous shrinkage of high-strength concrete. Accordi...

Ersa wave soldering systems

On Soldering Chiralities

We study how to solder two Siegel chiral bosons into one scalar field in a gravitational background. Permanent address: Instituto de F́ısica, Universidade Federal do Rio de Janeiro, Brasil [email protected] [email protected]

Brazing & Soldering Today

JULY 2012 50 High-temperature solder alloys are extensively used in dieattach, power semiconductor, and optical device packaging, flip-chip packaging, etc. Current industry standard solders for these applications are mainly high-lead solders (90–97 wt-% Pb) and gold-based eutectic solder alloys such as the 80Au20Sn solder. The die-attach process involves connecting the silicon die or chips to a...