Globalfoundries Inc.

Dimitri R Kioussis

Ravi Prakash Srivastava

Haifeng Sheng

David Michael Permana

A method of fabricating a semiconductor device is provided. The method begins by providing a semiconductor device structure having electronic devices formed on a semiconductor substrate, and having an upper metal layer associated with electrical contacts for the electronic devices. The method continues by forming a diffusion barrier layer overlying the upper metal layer. Next, the method deposits a first layer of graded ultra-low-k (ULK) material overlying the diffusion barrier layer, a layer of ULK material overlying the first layer of graded ULK material, and a second layer of graded ULK material overlying the layer of ULK material. The method continues by depositing a layer of low temperature oxide material overlying the second layer of graded ULK material, and forming a layer of metal hard mask material overlying the layer of low temperature oxide material.

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White Plains, NY, United States of America

Dimitri R Kioussis