Bell Telephone Laboratories

Western Electric Company, Inc.

David W Hill

Robert J Lavigna

Raymond E Reusser

Lewis Emanuel Katz

In Czochralski crystal growing operations, particularly those involving growth of silicon crystals, projecting formations of silicon monoxide sometimes form on the surface of the melt-containing crucible just above the initial level of the melt. These formations are avoided by perturbing chemical formation conditions at the region of probable formation. Such perturbations may be provided by a tube through which either a positive pressure of a gas, such as argon, is directed toward the region of probable formation or through which a negative pressure may be applied to perturb the formation conditions.

Growing community of inventors

Allentown, PA, United States of America

David W Hill