1st stage in manufacture of silicon chip

Numéro d’image : 11894725
1st stage in manufacture of silicon chip
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 The seed is rotated in the melt and slowly withdrawn to grow a larger,cylindrical crystal of silicon.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
Licence : Droits gérés
Crédit: Science Photo Library / Fielding, Malcolm / The Boc Group
Taille de l’image : 3774 px × 2577 px
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Property Release : Non requis
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