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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