What to know about Silicon Wafer Reclaim and Wafer Polishing

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What to know about Silicon Wafer Reclaim and
Wafer Polishing

• Silicon is the most common element in the earth's
  crust after oxygen. It is fragile and looks gray,
  and can be found in a variety of compounds in
  both nature and industry. Silicon is most
  commonly used in electronic devices. Photovoltaic
  sheets consisting of thin silicon wafers are used
  in solar panels. It is the basic component of all
  electrical circuitry, including computer chips,
  microprocessors, and transistors. Thin strips of
  hydrogenated amorphous silicon are used in LCD
  televisions and computer screens. It's used in a
  variety of polymers, including silicon rubber. It
  has a plethora of other applications as well.

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What is Silicon Wafer Reclaim?

• In simple words, Silicon wafer reclaim is the
  method of restoring a used wafer to its original
  state at a lower cost. This is unquestionably a
  more cost-effective choice than purchasing fresh
  wafers. This process consists of several stages,
  including
• Sorting - which is essential to avoid metallic
  contamination
• Stripping - which is done in batch tanks using
  wet immersion.
• Lapping Grinding - removal of damaged and
  cracked silicon surface
• Polishing - which uses chemical and mechanical
  polishing to extract residual slurry and unwanted
  particles from the substrate, as well as metallic
  contaminants
• Cleaning - which is done in batch immersion
  tanks and
• Inspection - which sorts the thickness and defect
  level before being returned to the fab.

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Benefits of Silicon Wafer Reclaim

• Silicon Wafer Reclaim helps in reducing the
  expense of producing brand new wafers by a
  significant amount. It has many environmental
  benefits because waste materials from the
  manufacture of new wafers are effectively
  minimized. Wafer reclaiming prolongs the life of
  wafers and it can be used for a longer time

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What is Wafer Polishing?

• KISS polishing is becoming increasingly common in
  the semiconductor industry. Some companies that
  specialize in wafer foundry services and products
  offer this solution. Minor wafer surface
  scratches or defects are removed using this
  method. As a result, the wafer will appear fresh
  without causing damage to the substrate.
• Things you should know before polishing,
• Chips and cracks - wafers with these types of
  defects are normally inspected and rejected by
  KISS service providers. As a result, you must
  separate them ahead of time, as you will be
  shocked to learn that they will be returned to
  you unprocessed.
• Standard requirements - Before an order is
  accepted, most businesses require customers to
  make written revisions to their standard
  specifications.
• Wafers broke during the process - Wafers broken
  during the process are normally not the
  responsibility of the service provider.

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Benefits of Wafer Polishing

• Wafer Polishing brings the following benefits,
• Can re-grow a variety of films with -5 percent
  uniformity across the wafer.
• 300mm wafers can be stripped up to 20 times
  without degrading the substrate
• When compared to conventional wafer reclaim, the
  procedure takes less time your order is ready in
  days rather than weeks.
• Wafers that have been used before are given a
  'new' appearance.

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Finding a good service provider

• finding a decent one? What are the conditions
  that you should emphasize? Use the Internet to
  find out more about semiconductor lithography and
  wafer recycling solutions. Once you have narrowed
  down the list of prospect service providers,
  check their credibility and know the reviews of
  previous customers. Having a state-of-the-art
  facility is an important factor in providing
  high-quality service, so this is one of the
  requirements you should consider.
• Make sure your prospect has all the necessary
  equipment and facility to perform the process.
• By following the above-said details you can find
  a reliable service provider. For more
  information, visit https//www.siliconspecialists.
  com

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THANK YOU