Method of forming amorphous TiN by thermal chemical vapor deposition (CVD)

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United States of America Patent

PATENT NO 7732307
APP PUB NO 20050275101A1
SERIAL NO

11143953

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on a heated substrate surface. Experimental results show that we have modified the precursor in such a way to reduce gas phase component of the deposition when compared to the unmodified TDEAT-NH3 reaction. Deposition temperatures were the range of 250-450° C. and under a range of process conditions the modified precursor shows improvements in coating conformality, a reduction in resistivity and an amorphous structure, as shown by TEM and XRD analysis. SIMS and scanning AES have shown that the film is essentially stoichiometric in Ti:N ratio and contains low levels of C (˜0.4 at %) and trace levels of incorporated Si (0.01

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Patent Owner(s)

  • AVIZA TECHNOLOGY LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burgess, Stephen Robert Gwent, GB 10 45
MacNeil, John Cardiff, GB 26 564
Price, Andrew Cardiff, GB 54 2152
Rimmer, Nicholas Cardiff, GB 3 6

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