Hamamatsu Photonics has developed a system for high-speed inspection of micro-LEDs on wafers to detect abnormalities in their external appearance, intensity and wavelength of their light emissions. This inspection system utilizes a photoluminescence (PL) measurement technique* that is based on our advanced image processing technology and a newly developed imaging module with our unique optical design technology. We call this micro-LED PL inspection system the ‘MiNYTM PL’, type number C15740-01. The MiNYTM PL makes fast pass/fail decisions when ins...

Hamamatsu Photonics K.K. (HPK) and Nichia on Oct. 11 have reached a basic agreement to build a wide-ranging collaborative framework leveraging the two companies’ proprietary optical and other technologies.

Many types of laser diodes (LDs) were displayed at OPIE’15, which took place last month in Yokohama, Japan. LD can be classified into gas laser, YAG lasers, semiconductor lasers, quantum cascade lasers and others.