For silicon wafer processing a
wafer needs to meet certain quality specifications, like chemical, mechanical,
surface specifications, and electrical specifications. It is important
that Epi wafer undergo these quality criteria so a wafer is
marked as defect-free and of excellent quality. For different electronic
applications, there is the use of high-quality wafers in semiconductor
manufacturing. To guarantee that the devices produced are efficient it goes
through a series of thorough processing, including epitaxial growth. This
article depicts epitaxial growth and its significance in manufacturing
semiconductors.
Epitaxial Growth or Epitaxy
Epitaxy plays an important role
in silicon wafer processing for semiconductor applications. Epitaxial growth or
epitaxy is a process in which over a single crystal substrate a fine layer of
single-crystal material is transferred along with the help of chemical vapor
deposition. Epitaxy is performed to boost and develop the performance of
bipolar devices. It helps in giving good control to the doping concentration of
the devices, therefore making the layers oxygen and carbon-free. An example is
the deposition of silicon over a silicon substrate. Epi wafer suppliers are
present everywhere to supply good quality wafers.
Silicon Wafer Processing
In producing high-quality wafers
meticulous and thorough silicon wafer processing plays a huge role. We provide
premium quality wafers at an affordable price at wafer world.
Finishing of the Process
With the use of an epitaxial
reactor, the chemical vapor deposition of epitaxial growth is attained. It
consists of a quartz reaction where a susceptor is placed. To the wafers, the
susceptor provides mechanical support and with thermal distribution, it creates
an environment. At high temperatures, an epitaxial deposition is performed
which allows gasses to flow into the chamber. In Silicon epitaxy, it is
observed that over thickly-doped silicon substrate there is the involvement of
growing a thinly doped epi layer. Across the collector-substrate junction, this
is done to achieve a higher disintegration voltage along with keeping low
collector resistance. A higher operating speed is permitted by a lower
collector resistance by using the same level of current. From Epi wafer
manufacturer you can easily manufacture wafers according to your
requirements.
