High-brightness LEDs continue to penetrate automotive, displays, signage and decorative lighting markets, says Richard Dixon in the second of two reports from the recent Strategies in Light conference.
The popularity of InGaP HBTs is growing and MOCVD seems to have cornered the market for InGaP HBT epiwafers. Jon Newey looks at the reasons for its success so far and speaks to various MBE companies to find out why they think they can win themselves a bigger slice of the InGaP pie.
VCSELs are still developing quickly despite the challenges of manufacturing large arrays and the reliability of the materials used in long-wavelength lasers for optical networking, as Richard Dixon discovered at the recent Photonics West conference in San Jose, California.
The combination of wafer bonding using metal layers and the introduction of buried micro-reflector structures leads to thin and highly efficient AlGaInP LEDs that can be manufactured on 4 inch wafers, according to Stefan Illek and co-workers at Osram Opto Semiconductors.