What is silicon wafer reclaiming?
A silicon wafer (SW) is made by processing a single crystal of high-purity metal silicon into a disc shape. A semiconductor chip is produced by creating minute electronic circuits on its surface and cutting it into pieces.
The process of making an electronic circuit differs depending on the product, but there are some cases with more than 1,000 processes. In the process, quality control is very important and quality checks are performed with SWs in various processes. The SWs, used for checking their quality, are sent to our company for reclaiming purposes.
Used SWs sent to us are chemically treated, polished, and cleaned in a special room called a cleanroom, where dust and dirt (foreign materials) are elimiated to the utmost, and are regenerated to the same quality as new products. After being returned to our customers around the world, they are used again for quality checks.