Uploaded on May 10, 2021
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.
What to know about Silicon Wafer Reclaim and
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.
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.
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
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.
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.
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
THANK YOU
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