wafer size
Wafer size is usually measured in terms of diameter, and its development reflects the technological advances and cost-effective pursuits of the semiconductor industry.
wafer size
The following are the major wafer sizes and their characteristics:
Smaller wafer sizes (1 inch to 6 inches):
The early semiconductor industry used smaller wafers, such as 1 inch to 4 inches, which were gradually phased out as technology progressed.
Applications have decreased: these sizes are now mainly used for teaching and special small batch production.
6-inch (150mm) wafers:
8-inch (200mm) wafers:
Continuing demand: Despite the dominance of 12-inch wafers, 8-inch wafers remain important due to cost-effectiveness and specific market needs.
12-inch (300mm) wafers:
Currently accounts for approximately 80% of all wafer production. Suitable for high-performance, high-density IC manufacturing.
Theoretically, it can further improve production efficiency and reduce costs, but it requires synergistic upgrading of the entire industrial chain.
The choice of wafer size directly affects the production cost, yield and market competitiveness of the chip.
With the evolution of technology, the increase in wafer size is one of the important ways for the semiconductor industry to pursue higher integration and lower cost.
Therefore, the industry in the choice of wafer size will be a comprehensive consideration of technology, economics and market demand for a variety of factors.
