Osram has created photodiodes that can be soldered without any damage up to one year after initial contact with air, claiming that comparable products only last three days. “Developers at Osram Opto Semiconductors have significantly improved the moisture sensitivity level,” said Osram, “This applies to storage of the component under defined conditions at a temperature ...

This story continues at New package increases photodiode pre-reflow shelf life

Or just read more coverage at Electronics Weekly