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US09034760B2 Methods of forming tensile tungsten films and compressive tungsten films 有权
形成拉伸钨膜和压缩钨膜的方法

Methods of forming tensile tungsten films and compressive tungsten films
Abstract:
Methods, apparatus, and systems for depositing tensile or compressive tungsten films are described. In one aspect, a method includes providing a substrate to a chamber. The substrate has a field region and a feature recessed from the field region. Then, the substrate is exposed to an organometallic tungsten precursor. The organometallic tungsten precursor not adsorbed onto the substrate is removed from the chamber. The substrate is treated with a first treatment including a heat treatment or a plasma treatment to form a tungsten layer on the substrate. After treating the substrate, residual gasses are removed from the chamber. The tungsten layer on the substrate is treated with a second treatment including a heat treatment or a plasma treatment.
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