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Crystals can be grown in bulk or epitaxially.
Bulk methods
Silicon crystals, like what are found in your computer, are usually grown using the Czochralski method. Other common crystals such as Gallium Arsenide (cell phones, ipods, etc.) are grown using techniques such as the liquid encapsulated Czochralski method or Bridgman growth.
Epitaxial Methods
There are two major technologies: vapor phase epitaxy (VPE) and molecular beam epitaxy (MBE). These methods are more expensive than the bulk growth methods but they can make higher purity crystals and use lower temperatures (less defects).
It is also possible to make heterojunctions (interface of crystals with different band gaps) with epitaxial growth. There are lots of variations on these technologies. I suggest googling VPE, MBE, and Czochralski for more information. Check out this funny but easy to read (and surprisingly accurate!) site below for more details on crystal growth and solid state physics in general.

2006-07-17 06:11:50 · answer #1 · answered by bromothymol 4 · 0 0

please refer to phase transformation . it is about crystal growth.

2006-07-17 07:12:26 · answer #2 · answered by eshaghi_2006 3 · 0 0

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