Single-crystal – oriented-crystal – and epitaxy growth processes; – Processes of growth from liquid or supercritical state – Having growth from a solution comprising a solvent which is...
Reexamination Certificate
2008-05-20
2008-05-20
Kunemund, Robert (Department: 1722)
Single-crystal, oriented-crystal, and epitaxy growth processes;
Processes of growth from liquid or supercritical state
Having growth from a solution comprising a solvent which is...
C117S069000, C117S070000, C117S073000
Reexamination Certificate
active
10479858
ABSTRACT:
The present invention provides a process for forming a bulk monocrystalline aluminum nitride by using a supercritical ammonia. The process comprises the steps of forming a supercritical solvent containing ions of an alkali metal in an autoclave; and dissolving a feedstock in this supercritical solvent to form a supercritical solution, and simultaneously or separately crystallizing aluminum nitride on the face of a crystallization seed. This process is carried out in the autoclave (1) which is provided with a convection-controller (2) arranged therein and which is to produce a supercritical solvent. The autoclave is set in a furnace unit (4) equipped with a heater (5) and/or a cooler (6).
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Doradzinski Roman
Dwilinski Robert
Garczynski Jerzy
Kanbara Yasuo
Sierzputowski Leszek
Ammono.SP.ZO.O
Kunemund Robert
Morrison & Foerster / LLP
Nichia Corporation
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