Dummy wafer refers to a simulated silicon wafer made of silicon wafer or glass, which is mainly used for testing, inspection and calibration in the semiconductor manufacturing process. Their appearance and size are similar to real chips, but they do not have the circuit structure and electronic components of the chip, which is equivalent to a “stand-in” in the manufacturing process.
In the semiconductor manufacturing process, dummy wafer plays a vital role. First, when manufacturing new chips, dummy wafer can be used to test, calibrate and optimize various manufacturing processes and process parameters to ensure the quality and stability of the final chip. Secondly, when producing a large number of chips, dummy wafer can be used to test the performance and stability of the equipment, find and eliminate faults, and avoid wasting expensive chip raw materials due to equipment failure.
In addition, dummy wafer can also be used to simulate the chip manufacturing process, reducing costs and time, and improving production efficiency. Before new chips enter the market, dummy wafer can also be used for market research and customer feedback to better meet market demand and improve customer satisfaction.
In general, dummy wafers are important tools in the semiconductor manufacturing process. Their role is not only in calibration and testing during the chip production process, but also as a tool to improve production efficiency and reduce costs.
