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Undoped Germanium Wafer With Low Etch Pit Density Epi Ready 6 Inch

Undoped Germanium Wafer With Low Etch Pit Density Epi Ready 6 Inch

Undoped Germanium Wafer With Low Etch Pit Density Epi Ready 6 Inch

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
Product Name: Single Crystal Ge Wafer Wafer Diamter: 6 Inch Germanium Wafer
Application: Micro-electronics Conduction Type: Undoped
Thickness: 200~550um Epi Ready: Yes
Specific Heat: 0.31 J G-1 °C-1 Thermal Conductivity: 0.58 W Cm-1 °C-1
High Light:

6 inch silicon wafer


germanium wafer

Undoped Germanium Wafer With Low Etch Pit Density, Epi-Ready , 6”


Properties Of Germanium Substrate/Window

Thermal properties:
Thermal Expansion 5.9 x 10-6 °C -1 @ 300K
Melting Point 937°C
Thermal diffusivity 0.36 cm2s-1
Thermal conductivity 0.58 W cm-1 °C-1
Specific heat 0.31 J g-1 °C-1
Mechanical properties:
Young Modulus 10.3x1011 dyn cm-2 @ 300K
Shear Modulus 4.1x 1011 dyn cm-2
Knoop Hardness 780 kg mm-2
Poisson constant 0.26
Electrical properties:
Di-electric constant 16.2
Resisitivity 9.0 ohm cm
Optical properties:
Transmission 2 - 14μm fino a circa 45°
Refractive Index 4.025 @ 4μm
4.005 @ 10μm
































Specification of Germanium Wafer

Item Specifications Remarks
Growth Method VGF  
Conduction Type undoped  
Dopant NONE  
Wafer Diamter 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  



We have a clean and tidy, wide workshop and a production and development team with rich experience, providing strong support for your r&d and production needs!All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.


PAM-XIAMEN is a worldwide manufacturer of single crystal Germanium wafer ( Ge wafer ) and single crystal Ge ingot , we have a strong advantage in providing Ge wafer for micro-electronics and opto-electronics industry in diameter range from 2 inch to 6 inch . Germanium wafer is an elemental and popular semiconductor material, due to its excellent crystallographic properties and unique electric properties, Germanium wafer is widely used in Sensor, Solar cell and Infrared optics applications. PAM-XIAMEN can provide low dislocation and epi ready Germanium wafers to meet your unique germanium needs. Germanium wafer is produced as per SEMI. standard and packed in standard cassette with vacuum sealed in clean room environment , with a good quality control system , PAM-XIAMEN is dedicated to providing clean and high quality Germanium wafer products. PAM-XIAMEN can offer both electronics grade and IR grade Ge wafer, please contact us for more Ge product information

History of Germanium

Germanium was predicted by Russian chemist Dmitri Mendeleev in 1869 after he developed the periodic table of elements. He predicted the element because he noticed a gap between silicon and tin. As a result, he theorized that there were several elements yet to be discovered, including element number 32 (Germanium). When he first figured it out, he initially called it eka-silicon.

His prediction turned out to be pretty accurate. He predicted that the element that would eventually become Germanium would have a density of 5.5 grams per cubic centimeter and atomic weight of 70. The actual numbers are 5.323 grams per cubic centimeter and an atomic weight of 72.630. As a result of his accuracy with Germanium, the periodic table was given credibility.

The element was officially discovered by Clemens A. Winkler in 1886 in Germany. The discovery was made in a mineral sample from a silver mine. The name he gave it, Germanium, comes from the Latin ‘Germania’ meaning Germany.





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