Founded in 2019 and based in Foshan Nanhai, Plutosemi Co., Ltd. specializes in high-performance semiconductor materials. As an industry leader, we offer advanced production capabilities and high-quality products such as silicon wafers and SOI, featuring high precision for diverse applications. Our one-stop services and customized solutions meet specific customer needs. Widely used in China, Europe, and the USA, we maintain strong partnerships with renowned international companies, upholding the philosophy of "Customer First, Quality Foremost".
The company maintains industry-leading standards with certifications in high-performance semiconductor materials R&D, production, and sales, supporting its position as a leader in the semiconductor materials sector.
Mirror polished wafers are inspected through a combination of visual surface examination, automated defect detection, roughness measurement, thickness testing, flatness evaluation, particle inspection, and edge-quality checks. A mirror polished silicon wafer must provide a smooth and clean surface suitable for epitaxy, lithography, bonding, coating, or device fabrication.
Dummy silicon wafers are needed when semiconductor equipment or production lines require a wafer-shaped carrier for process monitoring, chamber conditioning, equipment setup, or non-device testing. A semiconductor dummy silicon wafer can help stabilize process conditions without using valuable product wafers.
The suitable thickness of a thermal oxide layer depends on its function, electrical requirements, masking performance, etching conditions, and process temperature. Thin oxide films may be used as gate dielectrics or interface layers, while thicker films can provide stronger insulation, surface protection, or diffusion masking.
