Method for forming diamond and apparatus for forming the same
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTohru Inoue, Masaya Kadono, Akiharu Miyanaga
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Abstract
A process for fabricating diamond from a starting powder material containing carbon as the principal component, and said process comprising bringing said powder material under high pressure, wherein, said powder material containing carbon as the principal component is a powder material containing C.sub.60 and/or carbon microtubules as the principal component, and said powder material is brought under high pressure by applying a gradient pressure to the material, while the portion of the powder material to which maximum pressure is applied is irradiated by a laser beam optionally through a diamond window material. An apparatus for fabricating diamond is also described.
Claims16
A method for forming diamond comprising the steps of:
- placing a starting material comprising carbon in a vessel capable of pressing said starting material where a pressure within said material has a distribution;
- pressing said starting material within said vessel;
- and
- irradiating at least a portion of said starting material with a laser beam during pressing, wherein the pressure having said distribution takes a maximum value at said portion.
A method for forming diamond comprising the steps of:
- placing a starting material comprising carbon within a vessel capable of pressing said starting material and having a window made of a single crystalline diamond;
- pressing said starting material within said vessel;
- and
- irradiating at least a portion of said starting material with a laser beam during pressing through said window.
Dependencies are inferred from the claim text.