Product

PAM-XIAMEN, a Germanium wafer supplier,who offer Germanium substrate as follows:

N type, Sb doped Germanium wafer
N type,undoped Germanium wafer
P type,Ga doped Germanium wafer

Available size:2”-4”
Available orientation: (100),(111),or custom specs.
Available grade: IR grade, electronic grade and cell grade

Resistivity:
N - type : 0.007-30 ohm-cm
P - type : 0.001-30 ohm-cm
Undoped : >=30 ohm-cm 
Surface: as-cut, single side polished, double side polished.

Now we give an example of each type as follows:

No.1:  4" N - type Germanium  Wafer 
     Orientation : <100> +/- 0.5 degree
     Type / Dopant : N / Sb
     Diameter : 100 mm
     Thickness : 525 +/- 25 um
     Resistivity : 0.1 ~  1  ohm-cm
     Primary flat location : <110>+/-0.5 degree
     Primary flat length : 32.5 +/-2.5 mm
     Front surface : Polished
     Back surface : Etched
     Edge surface finishing : cylindrical ground
     Surface roughness  ( Ra ) : <=5A
     EPD : <= 5000 cm-2
     Epi ready : yes
     Package : Single wafer container
 
No.2.  4" P - type Germanium  Wafer 
     Orientation : <100> +/- 0.5 degree
     Type / Dopant : P / Ga
     Diameter : 100 mm
     Thickness : 500 +/- 25 um
     Resistivity : 1 ~ 10  ohm-cm
     Primary flat location : <110>+/-0.5 degree
     Primary flat length : 32.5 +/-2.5 mm
     Front surface : Polished
     Back surface : Etched
     Edge surface finishing : cylindrical ground
     Surface roughness  ( Ra ) : <=5A
     EPD : <= 5000 cm-2
     Epi ready : yes
     Package : Single wafer container
 
No.3.  2" undoped Germanium Wafer
Orientation : <100> +/- 0.5 degree
Undoped
Diameter : 50.8 +/-0.3 mm
Thickness : 500 +/- 25 um
Resistivity : >=30 ohm-cm
Primary flat location : <110>+/-0.5 degree
Primary flat length : 15.88 +/-1.65 mm
Front surface : Polished
Back surface : Etched
Edge surface finishing : cylindrical ground
Surface roughness ( Ra ) : <=5A
EPD : <= 5000 cm-2
Epi ready : yes
Package : Single wafer container


No.4 Germanium wafer for solar cell
 
1
orientation
(100)
2
disorientation
6 degrees to the side (111)
3
Tolerance for orientation
+/- 0,5 grad
4
type conductivity
P (acceptor)
5
dopant
Ga
6
resistivity
0,06 Om*sm
7
The dislocation density
0
8
chamfer
Edge ground
9
Finish
- The front surface
- Dorsal surface
Polished
Polished
10
Orientation 1st slice base (flat 1)
(100) + \ -2 degrees
11
For a basic cut (dimension flat 1)
32.5 + / - 1 mm
12
Max DN
100,1
13
Min DN
99,9
14
Max thickness
0,18 mm
15
Min thickness
0,16 mm
16
Finishing
Epi-ready
17
Nonflatness / deflection
<10 mkm

Inorganic germanium and organic germanium are different chemical compounds of germanium and their properties are different.
Germanium is not thought to be essential to the health of plants or animals.[21] Germanium in the environment has little or no health impact. This is primarily because it usually occurs only as a trace element in ores and carbonaceous materials, and is used in very small quantities that are not likely to be ingested, in its various industrial and electronic applications.[24] For similar reasons, germanium in end-uses has little impact on the environment as a biohazard. Some reactive intermediate compounds of germanium are poisonous (see precautions, below).
Germanium supplements, made from both organic and inorganic germanium, have been marketed as an alternative medicine capable of treatingleukemia and lung cancer. There is however no medical evidence of benefit, and instead some evidence that such supplements are actively harmful.

Relative products:
germanium diode
detector germanium
silicon germanium
germanium transistor
element germanium
germanium n type wafer
germanium production

Source: PAM-XIAMEN

If you need more information about Germanium wafer for PIN, please visit our website:http://www.qualitymaterial.net , send us email at powerwaymaterial@gmail.com.

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