Matches in SemOpenAlex for { <https://semopenalex.org/work/W2951489504> ?p ?o ?g. }
- W2951489504 endingPage "2388" @default.
- W2951489504 startingPage "2388" @default.
- W2951489504 abstract "The continuous down-scaling of complementary metal oxide semiconductor (CMOS) field effect transistors (FETs) had been suffering two fateful technical issues, one relative to the thinning of gate dielectric and the other to the aggressive shortening of channel in last 20 years. To solve the first issue, the high-κ dielectric and metal gate technology had been induced to replace the conventional gate stack of silicon dioxide layer and poly-silicon. To suppress the short channel effects, device architecture had changed from planar bulk Si device to fully depleted silicon on insulator (FDSOI) and FinFETs, and will transit to gate all-around FETs (GAA-FETs). Different from the planar devices, the FinFETs and GAA-FETs have a 3D channel. The conventional high-κ/metal gate process using sputtering faces conformality difficulty, and all atomic layer deposition (ALD) of gate stack become necessary. This review covers both scientific and technological parts related to the ALD of metal gates including the concept of effect work function, the material selection, the precursors for the deposition, the threshold voltage (Vt) tuning of the metal gate in contact with HfO2/SiO2/Si. The ALD of n-type metal gate will be detailed systematically, based mainly on the authors’ works in last five years, and the all ALD gate stacks will be proposed for the future generations based on the learning." @default.
- W2951489504 created "2019-06-27" @default.
- W2951489504 creator A5043675539 @default.
- W2951489504 creator A5057844513 @default.
- W2951489504 date "2019-06-11" @default.
- W2951489504 modified "2023-10-06" @default.
- W2951489504 title "Atomic Layer Deposition (ALD) of Metal Gates for CMOS" @default.
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