Patent · US Active

Crystal pulling system and method including crucible and barrier

US10407797B2 · kind B2 · utility

0Cited by

4References

22Claims

0Family size

Assignee

Corner Star Limited · CN

Inventors

Salvador Zepeda · Saint Peters, US
Richard J. Phillips · Saint Peters, US
Christopher Vaughn Luers · O'Fallon, US

Key dates

Filing date	May 4, 2017
Grant date	Sep 10, 2019
Priority date	—
Expiry date	May 4, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC30B29/06
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A system for forming an ingot from a melt includes a first crucible defining a cavity for receiving the melt and a second crucible in the cavity. The second crucible separates an outer zone from an inner zone. The second crucible includes a passageway therethrough to allow the melt located within the outer zone to move into the inner zone. The inner zone defines a growth area for the ingot. The system also includes a barrier located within the outer zone to limit movement of the melt through the outer zone. The barrier includes members that are arranged to define a labyrinth for melt flow.

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