A genuine slice of the technology that built the modern world. Silicon wafers are thin, flat discs of ultra-pure monocrystalline silicon — the foundation of virtually every semiconductor device ever made, from smartphones and laptops to medical imaging equipment and spacecraft. Manufacturing a silicon wafer is one of the most precise industrial processes ever developed. It begins with growing a perfect monocrystalline silicon ingot from molten silicon, then slicing it into paper-thin discs, polishing each surface to atomic smoothness, and applying chemical treatments to dial in exact electrical properties. This wafer's journey stopped there — before photolithographic etching — leaving it in its pure, un-etched state. That makes it a perfect specimen: you can see and hold the raw material that underlies all of modern electronics, before any circuits are added. Specifications: Diameter: 3 inches (76.2 mm) Type: Monocrystalline silicon, un-etched Purity: Semiconductor grade Comes in a protective plastic sleeve Includes a single wafer in a sleeve. Contact us for bulk quantity pricing.
