Pyrolytic boron nitride double container and manufacture...

Details Pyrolytic boron nitride double container and manufacture... Pyrolytic boron nitride double container and manufacture...

2005-08-02

2005-08-02

Pyon, Harold (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

C428S035500, C428S034600, C428S034700

Reexamination Certificate

active

06924012

ABSTRACT:
A pyrolytic boron nirtride double container for a source of molecular beams used in molecular beam epitaxy, wherein the transmissivity of an inner container of the pyrolytic boron nitride double container with respect to light having a wave number of 2600 cm−1to 6500 cm−1is 90% or less of that of an outer container. The pyrolytic boron nitride double container, which enables molecular beams to generate stably with good temperature controllability and high heat efficiency and which can be used in a stable manner, is provided through a simple process and at low cost, so that molecular beam epitaxial growth can be stabilized, quality of the epitaxial film can be improved, and even though the rise and drop in the temperature of the material melt is repeated, or even at an emergency suspension of the operation, the trouble due to breakage of the container can be prevented.

REFERENCES:
patent: 3986822 (1976-10-01), Lashway
patent: 4058579 (1977-11-01), Lashway
patent: 5674317 (1997-10-01), Kimura et al.
patent: 5925429 (1999-07-01), Kimura et al.
patent: 0 206 120 (1986-12-01), None
patent: 0 842 913 (1998-05-01), None

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