2inch/3inch/4inch S/Fe/Zn doped InP Indium Phosphide Single Crystal
Wafer
Indium phosphide (InP) is an important compound semiconductor
material with the advantages of high electronic limit drift speed,
good radiation resistance and good thermal conductivity. Suitable
for manufacturing high frequency, high speed, high power microwave
devices and integrated circuits. It is widely used in solid-state
lighting, microwave communication, fiber-optic communication, solar
cells, guidance/navigation, satellite and other fields of civil and
military applications.
zmkj can offers InP wafer – Indium
Phosphide which are grown by LEC(Liquid Encapsulated Czochralski) or
VGF(Vertical Gradient Freeze) as epi-ready or mechanical grade with
n type, p type or semi-insulating in different
orientation(111)or(100).
Indium phosphide (InP) is a binary semiconductor composed of indium
and phosphorus. It has a face-centered cubic (“zinc blende”)
crystal structure, identical to that of GaAs and most of the III-V
semiconductors.Indium phosphide can be prepared from the reaction
of white phosphorus and indium iodide[clarification needed] at 400
°C.,[5] also by direct combination of the purified elements at high
temperature and pressure, or by thermal decomposition of a mixture
of a trialkyl indium compound and phosphide. InP is used in
high-power and high-frequency electronics[citation needed] because
of its superior electron velocity with respect to the more common
semiconductors silicon and gallium arsenide.
| InP Wafer processing |
 |
| Each ingot is cut into wafers which are lapped, polished and
surface prepared for epitaxy. The overall process is detailed
hereunder. |
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| Flat specification and identification | The orientation is indicated on the wafers by two flats (long flat
for orientation, small flat for identification). Usually the E.J.
standard (European-Japanese) is used. The alternate flat
configuration (U.S.) is mostly used for Ø 4" wafers. |
|
| Orientation of the boule | Either exact (100) or misoriented wafers are offered. |
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| Accuracy of the orientation of OF | In response to the needs of the optoelectronic industry, we offers wafers with excellent accuracy of the OF orientation : <
0.02 degrees. This feature is an important benefit to customers
making edge-emitting lasers and also to manufacturers who cleave to
separate dies allowing their designers to reduce the
real-estate wasted in the streets. |
|
| Edge profile | There are two common specs : chemical edge processing or mechanical
edge processing (with an edge grinder). |
|
| Polishing | Wafers are polished by means of a chemical-mechanical process
resulting in a flat, damage-free surface. we provides both double-side polished and single-side polished (with
lapped and etched back side) wafers. |
|
| Final surface preparation and packaging | Wafers go through many chemical steps to remove the oxide produced
during polishing and to create a clean surface with stable and
uniform oxide layer that is ready for epitaxial growth - epiready
surface and that reduces trace elements to extremely low levels .
After final inspection, the wafers are packaged in a way that
maintains the surface cleanliness.
Specific instructions for oxide removal are available for all types
of epitaxial technologies (MOCVD, MBE). |
|
| Database | As part of our Statistical Process Control/Total Quality Management
Program, extensive database recording the electrical and mechanical
properties for every ingot as well as crystal quality and surface
analysis of wafers are available. At each stage of fabrication, the
product is inspected before passing to the next stage to maintain a
high level of quality consistency from wafer to wafer and from
boule to boule. |
s'pecification for 2-4inch
Our other related products wafers
sapphire wafers sic wafers GaAs wafers
About our company
SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai,
Which is the best city of China, and our factory is founded in Wuxi
city in 2014.
We specialize in processing a varity of materials into wafers,
substrates and custiomized optical glass parts.components widely
used in electronics, optics, optoelectronics and many other fields.
We also have been working closely with many domestic and oversea
universities, research institutions and companies, provide
customized products and services for their R&D projects.
It's our vision to maintaining a good relationship of cooperation
with our all customers by our good reputatiaons.
