A Workfunction Engineered Middle-Silicon-TiN Gate (MSTG) Cell Transistor in 16Gbit DRAM for High Scalability and Long Data Retention | IEEE Conference Publication | IEEE Xplore

A Workfunction Engineered Middle-Silicon-TiN Gate (MSTG) Cell Transistor in 16Gbit DRAM for High Scalability and Long Data Retention


Abstract:

To mitigate the constraint of the increased gate resistance for dual-workfunction-gate (DWG) cell transistors as a standard platform in the DRAM industry, a Middle-silico...Show More

Abstract:

To mitigate the constraint of the increased gate resistance for dual-workfunction-gate (DWG) cell transistors as a standard platform in the DRAM industry, a Middle-silicon- TiN Gate (MSTG), which replaces the n+-polysilicon with an ultra-thin TiN/silicon interlayer/bulk TiN was demonstrated in a fully integrated 1x-nm 16Gb, and provides superior retention time (2 times) without sacrificing the gate resistance compared to those of the single workfunction gate (SWG). (Keywords: dual-workfunction-gate, gate resistance, TiN, silicon interlayer, retention time, GIDL)
Date of Conference: 09-13 December 2023
Date Added to IEEE Xplore: 07 February 2024
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Conference Location: San Francisco, CA, USA

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