Photomasks are used to perform photolithography to transfer the pre-designed layout onto the substrates, normally a thin slice of silicon known as a wafer in the case of chip manufacturing.
Several masks are used in turn, each one reproducing a layer of the completed design, and together they are known as a mask set.
SUNUM uses high-quality ultra-smooth 5-inch quartz plates coated with 100 nm chromium and anti-reflectance (HOYA Company). We use electron beam lithography to expose the pre-designed layout with the state-of-the-art equipment in ISO 14644 certified cleanrooms.
Please consult us for your questions and custom design services or further information.
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