Method for forming semiconductor structure having TiN layer
First Claim
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1. A method for forming a semiconductor structure having a TiN layer, comprising:
- providing a substrate;
forming a TiN layer on the substrate at a rate between 0.3 and 0.8 angstrom/second; and
forming a poly-silicon layer directly on the TiN layer.
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Abstract
The method for forming a semiconductor structure includes first providing a substrate. Then, a TiN layer is formed on the substrate at a rate between 0.3 and 0.8 angstrom/second. Finally, a poly-silicon layer is formed directly on the TiN layer. Since the TiN in the barrier layer is formed at a low rate so as to obtain a good quality, the defects in the TiN layer or the defects on the above layer, such as gate dummy layer or gate cap layer, can be avoided.
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Citations
14 Claims
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1. A method for forming a semiconductor structure having a TiN layer, comprising:
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providing a substrate; forming a TiN layer on the substrate at a rate between 0.3 and 0.8 angstrom/second; and forming a poly-silicon layer directly on the TiN layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification