Silicon Wafer Diameters from 25.4mm to 300mm in stock!

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Silicon Wafer Diameters in Hard and Soft Plastic Cassettes

Below are examples of what standard silicon wafers shipping containers look like. Both hard and soft plastic are available.

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Typical Wafer Cassettes

We have both hard plastic Empak cassettes and soft plastic casseettes in stock.

silicon wafer diameter carriers

Silicon Wafer Diameters

To increase yields to decrease prices, semiconductor manufacturers helped the industry evolve wafer diameters that are now 450mm!

For over 50 years, the semiconductor industry has striven, with great initial success, at greatly reducing the manufacturing cost to make transistors. One of the easiest ways of reducing transistor costs was to increase transistor yields from the silicon wafers that they were etched on. The future of silicon wafers diameters may be determined by the easy of handling and shipping. The larger the wafer, the heavier they weigh and greater storage areas, equipment are needed to support the wafers.

Below is the evolution of silicon wafer diameters. Please let us know the specs and quantity that we can quote for you.

Wafer size Thick Year Weight per wafer

100 mm2
(10 mm) Die per wafer

25.4 mm   1960    
50.8 mm 275 μm 1969    
76.2 mm 375 μm 1972    
100 mm 525 μm 1976 10 grams  56
125 mm 625 μm 1981    
150 mm  675 μm 1983    
200 mm 725 μm. 1992 53 grams 269
300 mm 775 μm 2002 125 grams 640
450 mm (17.7 inch) 925 μm future 342 grams 1490
675-millimetre (26.6 in) Unknown. future    

It is interesting to note that say 200mm silicon wafer diameters are not exactly 200mm, but 7.9 inches! Why? The semiconductor industry was born in the United States which did not use the metric system. But as the rest of the world, specifically Japan started to manufacture semiconductors, the 200mm designation was used for 8 inch (7.9 inch) substrates. And now all diameters in inches are referred to their metric equivalent.