Patent · US Expired

Method of and apparatus for growing crystals

US4818500A · kind A · utility

5Cited by

5References

3Claims

0Family size

Assignee

Kernforschungsanlage Lulich Gesellschaft mit beschrankter Haftung · DE

Inventors

Karl Boden
Harald Ibach · Würselen, DE
Udo Linke · Düren, DE

Key dates

Filing date	Sep 8, 1986
Grant date	Apr 4, 1989
Priority date	—
Expiry date	Sep 8, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T117/1084
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A complex relative movement in a direction transverse to the crystal draw direction is imparted at the interface between the growing crystal bar and a melt of the crystallizable material by controlled electrical energization of a radial stabilizer acting upon the magnetizable core by which either the bar or the crucible or a supply bar for the material, or both, can be suspended.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.