Umicore | Precious Metals Management

Germanium tetrachloride (GeCl4)

Umicore is the world’s leading supplier and recycler of Germanium Tetrachloride (GeCl4) for the telecom optical fiber market. It produces the highest quality of GeCl4 in the industry.

High Purity Germanium Crystals

Umicore created the world’s purest germanium crystal. With a purity of 99.99999999999% (13N) it is used to detect and analyse gamma rays in particle accelerators, nuclear power plants and space applications.

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...

Ge for VCSELS: No epi-wafer bow

No bow in epi-wafer A comparison test * showed that the bow on a GaAs wafer is 10 times as high than on the Germanium wafer, 230 µm on the GaAs and 25 µm on Ge. This results in a better yield of subsequent production processes, which has a positive cost effect.

Ge for VCSELs: Charateristics

Main characteristics of Germanium for VCSELs

Infrared Solutions

Infrared Coatings

With over 30 years of optical coating experience, Umicore has developed an extensive library of over 2,500 proven IR Coating designs and processes, including High Efficiency Anti-Reflective (HEAR), High Durability Anti-Reflective (HDAR), and Diamond-Like Carbon (DLC). We have also developed a unique iDLC™ coating for use with our...

This is an extremely rugged and abrasion resistant anti reflection coating, making it ideal for external surface applications where extreme environmental conditions will be encountered such as marine environments. Umicore can successfully apply DLC coatings to Germanium and Silicon substrates. Below is a table showing the typical...

This durable coating can be used in rugged environments where regular cleaning is necessary. HDAR is used in thermal imaging applications that combines high transmission with durability and meets modular interface surface (MIS) requirements. Umicore can successfully apply HDAR coatings to Germanium and Silicon substrates. Below is a...

Combining high transmission, low reflection and moderate environmental resistance, this coating is best suited for internal surfaces applications. Umicore can successfully apply HEAR coatings to Germanium, Silicon, Zinc Selenide, and Gasir® substrates. Below is a table showing the typical specification of Umicore’s HEAR coatings.

Infrared Filters

IR Filter Solutions Umicore is a global leader in the design and manufacture of precision IR Filters. Widely used to detect the presence of noxious or flammable gases in the atmosphere, IR Filters are a key component of preventative maintenance safety systems critical to the Oil, Gas, and Energy sector. Infrared Filters...