Low temperature soldering in SMT.

Optimal combination of soldering conditions of BGA for halogen-free and lead-free SMT-green processes

As from July 1, 2006, the European Union officially enforced prohibition of the use of six designated hazardous substances under the restriction of hazardous substances (RoHSs), including lead, cadmium and others. In addition, as from 2008, the requirements of green products had been made stricter by adding prevented use of halogen as the standard. When confronted with the two harsh lead-free a...

Nitrogen in IR Reflow Soldering

Low Overhead Interrupt Handling with SMT Threads

[4] introduces the Click modular router. Click is a software based router that is composed of flexible software modules. Click is designed to run on commodity hardware and in commodity operating systems. Click provides a motivation for our interrupt handling work as Click typifies the overhead problems with traditional OS interrupts. Click removes the interrupt handling completely, opting inste...

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]