Lead free solder finish is widely available in industry and use in almost all COTS EEE parts. However, high temperature solder material is needed, for internal soldering, to manufacture different types of EEE parts like stacked ceramic capacitor, transformer or relay.
This solder material is usually made with lead. Several manufacturers are looking for alternative to be compliant with lead free requirement. The activity should aim to find at least one solder material without lead or a process to replace the high soldering temperature today used by most of the manufacturer. This material or process should be compliant with the requirement (ie temperature, long operating type application) for mounting EEE part on PCB using the current soldering temperature in space application but also the lead free process used in commercial application.
