Wafer Cassette Mapping
The process of transferring and storing the semiconductor wafers in the cassette is called wafer cassette mapping. Wafer cassette is also considered a wafer carrier that provides the maximum protection to wafer against the gaseous elements, nanoparticles, dust & dirt, etc.
The Different Kinds of Wafer Cassettes Online The 6” and 8” wafer carriers are widely available online, yet it may vary as per the location and brand which one decides while shopping. Let’s have a glance at the three distinct dimensions of wafer cassettes mapping.
• DI Dimension • Pocket Spacing • Pocket Flat
DI Dimension It is used for measuring the total distance of the cassette from one end to the center position of the wafer pocket.
Pocket Spacing The measurement of every wafer pocket from the centerline to the total distance is called pocket spacing.
Pocket Flat The wafer pocket, which comprises a linear distance, is defined as the pocket flat wafer cassette mapping.
Difference Between 6” Wafer Carrier & 8” Wafer Carrier 6” and 8” wafer cassette may hold the 25 slots, yet the hallmarks are different. For instance— 155mm/6-inch carrier wafers are free from the hydrolytic, chemical, and heat resistance. It incorporates the non-porous surfaces and utilizes the advanced versions of antistatic materials. However, from customization, durability, high precision control to RFID devices can be furnished with 200mm/8-inch wafer carriers without any hassle.
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