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Cmos-Compatible Strain Engineering a...

Jaikissoon, Marc.

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Cmos-Compatible Strain Engineering and Device Scaling of Monolayer Molybdenum Disulfide Transistors.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Cmos-Compatible Strain Engineering and Device Scaling of Monolayer Molybdenum Disulfide Transistors./
作者:	Jaikissoon, Marc.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
面頁冊數:	160 p.
附註:	Source: Dissertations Abstracts International, Volume: 85-11, Section: B.
Contained By:	Dissertations Abstracts International85-11B.
標題:	Silicon nitride. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31049704
ISBN:	9798382641348

Cmos-Compatible Strain Engineering and Device Scaling of Monolayer Molybdenum Disulfide Transistors.
Jaikissoon, Marc.

Cmos-Compatible Strain Engineering and Device Scaling of Monolayer Molybdenum Disulfide Transistors. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 160 p.

Source: Dissertations Abstracts International, Volume: 85-11, Section: B.

Thesis (Ph.D.)--Stanford University, 2023.

Moore's Law has been the driving factor behind the exponential growth of the semiconductor industry over the past six decades. As the reduction of silicon features approaches the atomic limit, we are once again at an inflection point, requiring researchers to investigate new ultrathin semiconductors to overcome these limitations. Monolayer transition metal dichalcogenides (TMDs) are a class of atomically-thin materials which have demonstrated promise for nano-scaled transistors owing to their excellent electrical properties in this regime.In silicon technology, the first great advance beyond conventional scaling came from harnessing strain to improve performance. Strain is also known to affect the band gap of TMDs but has rarely been investigated in TMD transistors on rigid substrates. In the first part of this thesis, I explore how electron beam evaporation, the most commonly used technique for contact formation to TMDs, can introduce significant tensile strain to monolayer molybdenum disulfide (MoS2).Next, I demonstrate a fully industry-compatible approach to impart strain to two-dimensional TMD transistors using tensile-stressed silicon nitride capping layers. I apply it to both back and dual-gated devices, demonstrating improvements up to 60% in the on-state current of monolayer MoS2 transistors.The next major advance in silicon technology came from the introduction of high-κ /metal gate technology, offering improved gate control. In the final part of this thesis, I developed a process which allows the integration of monolayer MoS2 on thin, high-κ dielectrics which enables lower voltage operation, improved subthreshold behavior and drive currents up to ~700 μA/μm at a channel length of 50 nm. Together, these results offer a holistic approach to channel and contact engineering, offering a path for TMD transistors to become industrially relevant.

ISBN: 9798382641348Subjects--Topical Terms:

656984
Silicon nitride.

Cmos-Compatible Strain Engineering and Device Scaling of Monolayer Molybdenum Disulfide Transistors.
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