Haynes and Boone, LLP
Structure with embedded memory device and contact isolation scheme
The present disclosure provides an integrated circuit (IC) structure that includes a fin active region on a substrate; a metal gate stack on the fin active region; a source and a drain on the fin active region, wherein the metal gate stack spans from the source to the drain; an interlayer dielectric (ILD) layer disposed on the source and the drain; a first conductive feature and a second conductive feature formed in the ILD layer and being aligned on the source and the drain, respectively; and a dielectric material layer surrounding the first and second conductive features. The dielectric material layer continuously extends to a bottom surface of the first conductive feature and isolates the first conductive feature from the source and the second conductive feature contacts the drain.
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
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Min-Yann Huang-Kui Fan-Shuen
Hsieh Chen Meng