Patent ID: 6653234
Filing Date: 2003-11-25
Classification: C23C,H01L,Y10S

Abstract:
A chemical vapor deposition process using a plasma in a deposition chamber having a heater for depositing a metal layer on a substrate in said deposition chamber, comprising:admitting a hydrocarbon gas into said deposition chamber; admitting titanium tetrachloride gas into said deposition chamber; forming a plasma in said deposition chamber having a power level greater than a first ionization energy, but less than a second ionization energy, of said at least one hydrocarbon gas for forming hydrocarbon radicals therein, said at least one hydrocarbon gas comprising an alkane; and heating said substrate to a temperature sufficient for said radicals formed from said at least one hydrocarbon gas to react with chlorine atoms from said titanium tetrachloride gas for depositing a layer of titanium metal on a surface of said substrate.