ASU Core Facilities Equipment Showcase: Silicon backgrinder and mounter

The silicon backgrinder and mounter system is designed to bring precision and flexibility to advanced semiconductor research by enabling the processing of ultra-thin wafers. This sophisticated equipment can grind standard 8 or 12-inch silicon wafers down to final thicknesses below 100 microns, a critical step for modern device fabrication. To ensure high quality after this aggressive grinding process, the system utilizes an additional polishing spindle that creates a pristine surface, effectively removing any damage caused by the initial grinding and preparing the wafer for subsequent steps. A key advantage of this automated system is its ability to safely handle fragile materials throughout the entire workflow. The fully automated handling mechanisms protect these ultra-thin wafers from breakage or contamination while precision mounting techniques prepare them specifically for dicing operations. Furthermore, the equipment efficiently removes the back grind tape used during the process, ensuring that the wafers are clean and ready for integration into larger manufacturing lines without manual intervention that could compromise their integrity. The true value of this technology lies in its ability to enable specific advanced packaging applications such as embedding and fan-out wafer level packaging. By preparing silicon wafers at their final device thickness, the tool directly supports the development of cutting-edge technologies like silicon bridges and interposers, which are essential for increasing I/O density and performance in next-generation chips. This capability allows researchers to explore new architectural possibilities that were previously difficult or impossible to achieve with standard processing equipment. Ultimately, this system provides ASU researchers and the broader scientific community with access to critical thin wafer processing capabilities that were once limited to specialized facilities. By offering greater flexibility to explore the next generation of semiconductor packaging, the tool accelerates innovation and reduces barriers to entry for developing complex electronic devices. The availability of such advanced infrastructure fosters a collaborative environment where new technologies can be prototyped and refined more rapidly, driving progress in the global semiconductor industry.