Single-crystal – oriented-crystal – and epitaxy growth processes; – Forming from vapor or gaseous state – With decomposition of a precursor
Reexamination Certificate
2004-11-04
2008-08-05
Kunemund, Robert M (Department: 1792)
Single-crystal, oriented-crystal, and epitaxy growth processes;
Forming from vapor or gaseous state
With decomposition of a precursor
C117S096000, C117S929000, C423S446000
Reexamination Certificate
active
07407549
ABSTRACT:
A diamond single crystal composite substrate which are constructed from a plurality of diamond single crystal substrates with uniform plane orientations disposed side by side and integrated overall by growing diamond single crystals thereon by vapor phase synthesis, in which the deviation of the plane orientation of the main plane of each of said plurality of diamond single crystal substrates, excluding one diamond single crystal substrate, from the {100} plane is less than 1 degree, the deviation of the plane orientation of the main plane of the excluded one substrate from the {100} plane is 1 to 8 degrees, said one diamond single crystal substrate is disposed in the outermost circumferential part when the diamond single crystal substrates are disposed side by side, and is disposed so that the <100> direction in the main plane of said one substrate faces in the outer circumferential direction of the disposed substrates, and diamond single crystals are then grown by vapor phase synthesis so that the diamond single crystal grown from said one diamond single substrate is caused to cover the diamond single crystals grown on the other substrates, to achieve an overall integration.
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T. Tsuno, et al. “Growth Rate and Surface Morphology of Diamond Homopitaxial Films on Misoriented (001) Substrates” Jpn. J. Appl. Phys., vol. 35 (1996), Part 1, No. 9A, pp. 4724-4727.
Austrian Search and Examination report, issued in corresponding Austrian Patent Application with Austrian patent application No. 200406149-0 dated Feb. 2, 2007.
Imai Takahiro
Meguro Kiichi
Yamamoto Yoshiyuki
Kunemund Robert M
McDermott Will & Emery LLP
Sumitomo Electric Industries Ltd.
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