Vertical Cavity Surface Emitting Lasers (VCSELs) are a key component in telecom and 3D sensor systems. Applications range from datacenters to Face Recognition systems and LiDAR Time of flight sensors on mobile handsets and in cabin sensing of autonomous vehicles.
Most VCSELs are grown on GaAs substrates, but when dealing with the future challenges, Germanium appears to be an excellent candidate to cope with these.
No bow in epi-wafer Germanium is better lattice matched to the DBR than GaAs and bow on a Ge wafer is 10 times lower than on GaAs wafer. This lower bow makes design of safe-eye longer wavelengths >1,3µm VCSELs possible.
No dislocations Umicore Germanium has 0 EPD (etch pitch density), which results in a better yield and long term device reliability. The burn-in of final devices may be reduced.
6", 8" & 12" Substrates Umicore wafers are available in diameters up to 12". Both N-type as P-type is available, giving more freedom for alternatieve VCSEL designs.
Sustainability & Recycling Germanium recycling services are readily available. Umicore can recover germanium from complex streams via both pyrometallurgical and hydrometallurgical processes. Recycling capabilities together with Umicore's Sustainable Procurement Charter puts Umicore germanium into an excellent postion towards a more sustainable world.
Umicore uses certain monitoring and tracking technologies such as cookies. These technologies are used in order to maintain, provide and improve our services on an ongoing basis, and in order to provide our web visitors with a better experience.
By clicking on the "Accept all" button you agree to the use of these cookies while using the website. For further information regarding how we use cookies and other tracking technologies, please see section 11 of our website privacy notice.
