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Mono Crystalline GE Wafer Optical Grade N Type Conduction Ir Grade

Mono Crystalline GE Wafer Optical Grade N Type Conduction Ir Grade

Mono Crystalline GE Wafer Optical Grade N Type Conduction Ir Grade

Product Details:

Place of Origin: China
Brand Name: PAM-XIAMEN

Payment & Shipping Terms:

Minimum Order Quantity: 1-10,000pcs
Packaging Details: Packaged in a class 100 clean room environment, in single container, under a nitrogen atmosphere
Delivery Time: 5-50 working days
Payment Terms: T/T
Supply Ability: 10,000 wafers/month
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Detailed Product Description
Keywords: Ge Wafer Wafer Diameter: 2, 3,4 & 6 Inch
Brand: PAM-XIAMEN Product Name: Mono Crystalline Germanium Substrate
Grade: Optical Grade Conduction Type: N-type, Undoped
Surface Finish: P/E Or P/P Epi Ready: Yes
High Light:

6 inch silicon wafer


germanium wafer

Optical Grade Mono Crystalline Germanium Substrate


Grades And Application Of Germanium Wafer

Electronic Grade Used for diodes and transistors,
Infrared or opitical Grade Used for IR optical window or disks,opitical components
Cell Grade Used for substrates of solar cell


Specification Of Germanium Wafer

Item Specifications Remarks
Growth Method VGF  
Conduction Type n-type, undoped  
Dopant Antimony,NONE  
Wafer Diamter 2, 3,4 & 6 inch
Crystal Orientation (100),(111),(110)  
Thickness 200~550 um
OF EJ or US  
Carrier Concentration request upon customers  
Resistivity at RT (0.001~80) Ohm.cm
Etch Pit Density <5000 /cm2
Laser Marking upon request  
Surface Finish P/E or P/P  
Epi ready Yes  
Package Single wafer container or cassette  


Specification of Germanium


1. Transmission Range: 1.8-23 um

2. Refractive Index©10.6 um: 4.0034

3. Purity: 99.999%

4. Melting Point: 936 °C

5. Hardness: 780 kg/mm2

6. Density: 5.327 gm/cc

Germanium Facts

  • Germanium is metalloid, which means it has properties of both metals and nonmetals. Other metalloids on the periodic table are boron, silicon, arsenic, antimony, tellurium, and polonium.
  • Germanium is one of the few elements that expand when it freezes, just like water.
  • The name “germanium” comes from the Latin name for Germany. Clemens Winkler, a German chemist, is believed to have found the first substrate of germanium in 1885.
  • The existence of germanium was predicted by Russian chemist Dmitri Mendeleev in 1869 after he developed the periodic table of elements.

There Are Multiple Forms

When it comes to germanium, there are five naturally occurring isotopes. They are germanium-70, germanium-72, germanium-73, germanium-74, and germanium-76. Isotopes are two or more forms of an element with each differing from each other according to their mass number. The mass number is the number located to the right of the element, which in this case is 70, 72, 73, 74, and 76. The mass number represents the number of protons plus neutrons in the nucleus of an atom of the element. At least nine radioactive isotopes of germanium are also known.

It Has Many Uses

Germanium first became important for its use in semiconductors. In fact, semiconductor use accounts for 15% of all germanium used and produced. Even more popular for germanium is its use in the manufacturing of fiber optic systems. Those account for about 40% of its overall production in the United States. It is also used to make specialized glass for military applications.


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