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PCE
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DIFF Subgroup
C30B 28/04

from liquids

Introduced: January 1990

Full Title

Production of homogeneous polycrystalline material with defined structure > from liquids

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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  • C30B 28/06 by normal freezing or freezing under temperature gradient since 1990 IPC+CPC Available in IPC and CPC
  • C30B 28/08 by zone-melting since 1990 IPC+CPC Available in IPC and CPC
  • C30B 28/10 by pulling from a melt since 1990 IPC+CPC Available in IPC and CPC