Protocrystal electronics offers a range of product grade polished silicon wafers: high surface flatness, super clean and high purity monocrystalline polished silicon wafers, which are customized to meet different customer quality requirements. A complex chemical mechanical polishing process (CMP) removes surface imperfections and produces a super-flat, mirror-like surface. The CMP process was developed in 1962 and remains the industry standard for semiconductors today. Product-grade silicon wafers are used in a series of advanced integrated circuit products and are one of the main raw materials of integrated circuits.

Original crystal electronics provides 150mm, 200mm, 300mm, 450mm and other sizes of product grade silicon wafer, model, resistivity, crystal direction, thickness, granularity, etc., can be customized according to customer requirements.