Semiconductor device incorporating elements formed of refractory metal-silicon-nitrogen and method for fabrication
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United States of America Patent
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Sep 21, 2004
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N/A
app pub date -
Feb 26, 2003
filing date -
Jan 12, 2001
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Abstract
A semiconductor structure that includes at least one circuit element of a fuse, a diffusion barrier or a capacitor that is formed by refractory metal-silicon-nitrogen is disclosed. A method for fabricating such semiconductor structure that includes a fuse element, a diffusion barrier, a resistor or a capacitor by a refractory metal-silicon-nitrogen material is further disclosed. A suitable refractory metal-silicon-nitrogen material to be used is TaSiN which provides a wide range of resistivity by changing the ratio of Ta:Si:N. The invention provides the benefit that the various components of diffusion barriers, fuses, capacitors and resistors may be formed by a single deposition process of a TaSiN layer, the various components are then selectively masked and treated by either heat-treating or ion-implantation to vary their resistivity selectively while keeping the other shielded elements at the same resistivity.
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