1st stage in manufacture of silicon chip

1st stage in manufacture of silicon chip

T380/0058

Rights Managed

Caption

The first stage in the manufacture of a silicon chip (integrated circuit). A small crystal "seed" of silicon is suspended in molten polysilicon, contained in a graphite crucible and heated by a graphite element. The seed is rotated in the melt and slowly withdrawn to grow a larger, cylindrical crystal of silicon. The eventual cylindrical mass may be 75-100 millimeters (mm) in diameter and up to 1 metre long. After polishing & grinding to exact dimensions, individual wafers of between 0.25 and 0.5mm thickness are sliced from the block. Crystalline silicon wafers form the bases for the ultimate integrated circuits.

Release details

Model release not required. Property release not required.

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