Wafer reclaiming services can range from simple "strip and clean" processes to complete repolishing. The process you need depends on your specific needs, and your company's budget. Here is a look at the steps involved. When you choose a company, consider how much work they will do to ensure the quality of the work.
Wafer stripping
Wafer stripping is the process of removing the film layer of
silicon wafers. This process is carried out by wafer reclaiming companies that
utilize state-of-the-art equipment. This process is crucial to avoid
contamination of the reclaim line by metal residues. The process involves a
series of steps that include visual inspection of the wafers and determination
of their type. It also includes measurements of mechanical and dopant
properties.
The global silicon wafer reclaiming market is largely driven
by growth in the Asia-Pacific region. The region has high demand for reclaimed
silicon wafers due to the increase in adoption of electronics and solar cells.
Furthermore, the region has a high level of disposable income, which is a
positive factor for market growth.
Wafer polishing
Wafer polishing is one of the main steps in reclaiming the
surface of a wafer. This process involves applying pressure to the wafer under
different conditions. The pressure may be 80 to 500 gf/cm2 or higher. This
pressure increases the polishing efficiency.
The process begins by mounting the wafer on a ceramic plate.
A soft polyurethane pad is used to press it to the surface of the plate. The
wafer is then polished at 60 rpm using a final solution with a pH of 10.5. The
solution also contains 1 percent colloidal silica with an average particle size
of 35 nm. Following the polishing process, the wafer is then cleaned as
required for the next step. The wafer is then measured for thickness with an
electrostatic non-contact thickness meter. It is also tested for impurities on
the surface using a total X-ray reflection fluorescence analyzer.
Wafer polishing by Wafer Reclaiming services CA comprises a chemical-mechanical
process for reducing the thickness of the wafer. The process reduces the
overall thickness of the wafer to 20 mm. The process also reduces the amount of
metallic contamination present on the front and rear surface of the wafer. The
inventive process also skips the stock polish and final polish steps, allowing
the high quality of the reclaimed wafer to be maintained.
Wafer cleaning
Wafer reclaiming services CA are a growing industry that can
help companies recycle their reusable wafers. These companies specialize in the
recycling of semiconductors. The industry is expected to grow at a healthy rate
over the next few years, based on the increasing demand for renewable energy.
Reclaiming processes vary from a simple "strip and
clean" method to complete repolishing and reclaiming of the wafer. The
type of process performed will depend on the type of wafer. The process
involves stripping off the metal and silicon films. It also involves
measurement of the dopant content and mechanical parameters.
Wafer reclaiming services CA involve processing used silicon
wafers for a new purpose. Reclaimed wafers are cleaned, polished, and stripped
so that they can be used in manufacturing and testing products. Reclaimed
wafers are much cheaper than virgin test wafers and often have the same
performance and quality. The process of reclaiming means that the reclaimed
wafers are much thinner than virgin wafers. This makes them ideal for many of
the same uses as virgin test wafers.
Wafer reclaiming
The process of reclaiming wafers varies from a simple
"strip and clean" procedure to a complete repolishing and reclaiming
process. The reclaiming process also involves the removal of surface scratches
and thin films. In addition, wafers undergo an inspection process to determine
the type of wafer.
The global market for reclaiming services is estimated at USD 420 million in 2015. The market
is expected to grow at a significant rate over the next seven years. The growth
is due to significant technological advancements and increasing substitution of
high-cost virgin wafers by reclaimed ones in the semiconductor industry.
Wafer reclaiming services use SVM equipment to polish and
restore the quality of silicon wafers. The SVM is capable of polishing wafers
up to 300mm in diameter, and can-do double-sided polishing.
Sic wafer reclaiming
The global market for Sic wafer reclaiming services is
expected to grow significantly through 2030. This is primarily due to the
increasing demand for automotive electronics and e-mobility. Additionally, the
rising adoption of automated solutions will further boost the demand for these
services. In addition, the growth of the semiconductor industry in Latin
America will also boost the market.

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